dslc

DSLC

DSLC

-1

DSLC

DSLC O DSLC é um microprocessador para o sincronismo

e controle de carga de geradorese controle de carga de geradores. É destinado para atuar em Reguladores de

Velocidade Woodward (também é compatível comVelocidade Woodward (também é compatível com Reguladores de outros fabricantes) e também para atuar em Reguladores de Tensão Automáticos para gfazer as funções de: Sincronismo, paralelismo, carga, e descarga em conjuntos geradores trifásicos.

O DSLC monitora e coordena todas as funções e operações para obter transições suaves.

Page 1-2

DSLC

Funções do DSLC

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DSLC

Funções do DSLCFunções do DSLC Carga e Descarga automática do gerador com suave transferência

de cargade carga. Capacidade de controle de carga nos seguintes modos:Droop,

Base de carga e Isócrono. Modo sincronização programável pelo usuário para fazer correção Modo sincronização programável pelo usuário para fazer correção

fases, com opcional correção tensão e capacidade de fechamento automático em barra morta e sincronismo com desvio frequência.

Alarmes programáveis para atuar em limites máximos e mínimos e p g pchave de carga com saída para acionamento de relés

Rede comunicação digital para fazer Divisão de carga, Divisão reativos ou fator de potência e troca de outras informações entre os controles.

Capacidade total para se fazer ajustes, medições e diagnósticosatravés de um programador manual (HHP).S í é ê Saída discreta de relé para Potência Reversa.

Controle reativos ou fator de potência (Apenas nos DSLCs completos).C t l d ã i t ã / t ã

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Controle de processo para cogeração, importação/exportação, controle pressão ou outros processos (Apenas nos DSLCs completos).

DSLC

Porque usar um DSLC?

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DSLC

P DSLC?Por que usar um DSLC? Com ligação de um único controle você faz diversas funções.

Isto reduz tempo interligação, evita erros e diminui os custos. Otimiza espaço interno nos paineis. Elimina o número de sensores (TP’s TC’s MOP’s) Elimina o número de sensores (TP’s, TC’s, MOP’s). Elimina PLC’s ou lógica de relés para fechamento barra morta. Elimina o necessário para um relé externo de potência reversa.p p Controla potência ativa e reativa em apenas um equipamento. Comunicação Digital para se fazer divisão de carga. Sensor de potência trifásico (True RMS)

Precisão mesmo em cargas desbalanceadas Rede operação local pode também ser integrado no sistema de Rede operação local, pode também ser integrado no sistema de

controle digital Woodward QuadraLink DCS (Distributive Control System) para mostrar os parâmetros das funções e monitorar o sistema de controle

Page 1-6

sistema de controle.

DSLC

Processando um Sinal DigitalSaída Gerador

Tempo CPU

Saída Digitalizada

Page 1-7

DSLC

Processando um Sinal Digital O processo de um sinal digital é uma técnica de medição de O processo de um sinal digital é uma técnica de medição de

potência usada pelo DSLC que envolve amostragem periódica de tensão e corrente sobre um número integral de formas de ondaonda.

O DSLC usa a técnica de processar um sinal digital para derivar ambas as tensões (True RMS) e fase relativa da frequência fundamental medindo a forma de onda dofrequência fundamental medindo a forma de onda do barramento e do gerador.

A técnica de medição processando um sinal digital oferece um significante aumento de precisão na presença deum significante aumento de precisão na presença de distorções de forma de onda e harmonicas, particularmente uma vez que a medição de fase não depende do cruzamento zero da forma de ondazero da forma de onda.

O microprocessador computa a multiplicação da tensão e corrente amostrada, então soma e tira a média para fazer o cálculo de potência

Page 1-8

cálculo de potência.

DSLC

Opções de DSLCP/N Speed Bias Output PT Configuration Voltage Input Functions

9905-354 0.5–4.5 Vdc Wye 120/240 Reduced9905-355 0.5–4.5 Vdc Wye 120/240 Full9905-362 ±3.0 Vdc Open delta 240 Reduced9905 363 3 0 Vd O d lt 240 F ll9905-363 ±3.0 Vdc Open delta 240 Full9905-366 0.5–4.5 Vdc Open delta 120 Reduced9905-367 0.5–4.5 Vdc Open delta 120 Full9905-368 0.5–4.5 Vdc Open delta 240 Reduced9905-369 0.5–4.5 Vdc Open delta 240 Full9905-372 500 Hz PWM Open delta 120 Reduced9905-373 500 Hz PWM Open delta 120 Full9905-374 500 Hz PWM Open delta 240 Reduced9905-603 1–5 Vdc Wye 120 / 240 Full9905-704 500 Hz PWM Open delta 240 Full9905 704 500 Hz PWM Open delta 240 Full9905-707 1–5 Vdc Open delta 120 Reduced9905-708 1–5 Vdc Open delta 120 Full9905-709 1–5 Vdc Open delta 240 Reduced9905-710 1–5 Vdc Open delta 240 Full9905 711 1 5 Vdc Wye 120 / 240 Reduced9905-711 1–5 Vdc Wye 120 / 240 Reduced9905-795 ±3.0 Vdc Wye 120 / 240 Full9905-796 ±3.0 Vdc Open delta 120 Reduced9905-797 ±3.0 Vdc Open delta 120 Full9905-798 500 Hz PWM Wye 120 / 240 Reduced

Page 1-9

9905-799 500 Hz PWM Wye 120 / 240 Full9907-007 ±3.0 Vdc Wye 120 / 240 Reduced9907-205 Hand Held Programmer

DSLC

Opções do DSLC Existem 24 diferentes Part Numbers de

DSLCDSLC. Cada Part Number são selecionáveis

por: Saída para ajuste de velocidade.p j Configuração de TP. Tensão de entrada Tensão de entrada. DSLC com funções completa ou reduzida.

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DSLC

Tipos de Saída para Ajuste de Velocidade/ 3Vd

- 723 Plus - Caterpillar

+/- 3Vdc 500 Hz PWM31

30

29HI IMPVOLTAGE BIASOUTPUT

+/- 9V LO IMP

COM 30


+/- 9V LO IMP

- 2301A- EPG’s

CaterpillarADEM

36

35

34

33

32+

REMOTE LOADREFERENCE INPUT

(4-20mA, 1-5 VDC)

-REMOVE JPR FOR VDC

-+

SPEED BIASOUTPUT

35

34

33

32

31

+


COM

-REMOVE JPR FOR VDC

+

SPEED BIASOUTPUT

39

38

37

PROCESSSIGNAL INPUT

(4-20mA, 1-5 VDC)

REMOVE JPR FOR VDC

-+

39

38

37

36REFERENCE INPUT

(4-20mA, 1-5 VDC)

PROCESSSIGNAL INPUT

(4-20mA, 1-5 VDC)

REMOVE JPR FOR VDC

-

-+

DDEC

0.5 - 4.5 Vdc 1 - 5 Vdc

31

30


+/- 9V LO IMP

COM 30


+/- 9V LO IMP- DDEC - CaterpillarGECM

- 505- NetCon-Micronet36

35

34

33

32+


(4-20mA, 1-5 VDC)

-REMOVE JPR FOR VDC

-+

SPEED BIASOUTPUT

35

34

33

32

31

+


COM

-REMOVE JPR FOR VDC

+

SPEED BIASOUTPUT

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38

37

PROCESSSIGNAL INPUT

(4-20mA, 1-5 VDC)

REMOVE JPR FOR VDC

-+

39

38

37

36REFERENCE INPUT

(4-20mA, 1-5 VDC)

PROCESSSIGNAL INPUT

(4-20mA, 1-5 VDC)

REMOVE JPR FOR VDC

-

-+

DSLC

Tipos de Saída para Ajuste deTipos de Saída para Ajuste de VelocidadeVelocidade

±3.0 Vcc—Compativel com todos os Reguladores Eletrônicos Woodward Analógico e DigitaisEletrônicos Woodward Analógico e Digitais.

0.5–4.5 Vcc—Compativel com controles Detroit Diesel Corporation DDEC e Caterpillar tipo GECMDiesel Corporation DDEC e Caterpillar tipo GECM.

500 Hz PWM—Compativel com Reguladores Caterpillar tipo ADEM e com Controles WoodwardCaterpillar tipo ADEM e com Controles Woodward tipo Gen Dec.

1–5 Vcc—Compativel com produtos Woodward e p poutros que requeiram 1-5 Vcc numa resistência de243 ohms.

Page 1-12

DSLC

Configurações de TP

AB C

N A B C

Delta Aberto-Open Delta

E t l WYEA A

B

Estrela - WYE

B

CN

B

C

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DSLC

Configurações de TP

Delta Aberto — Consiste de dois TPs entre fases A-B e B-C, sendo que a fase B é aterrada.

Estrela — Consiste de três TPs em estrela com o centro aterradoestrela com o centro aterrado.

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DSLC

Entrada de Tensão

AB C

NA B C

D l AbDelta Aberto-Open Delta

E t l WYEA

BA

B

Estrela-WYE

120/ 120/240C

N

B

C240 VAC 240 VAC

Page 1-15

DSLC

Entrada de Tensão A tensão de entrada do TP do gerador ao DSLC é

proveniente do secundário do TP e pode ser linha-linha ouproveniente do secundário do TP e pode ser linha linha ou linha-neutro.

Configuração TP Estrela (Wye):E t d 120 V (65 150 V ) t i i 7 12 9 12 Entrada 120 Vca (65 a 150 Vca), terminais 7 para 12, 9 para 12 e11 para 12.

Entrada 240 Vca (150 a 300 Vca), terminais 6 para 12, 8 para 12e 10 para 12.

Configuração TP Delta Aberto 120 Vca: 65 a 150 Vca, terminais 6 para 8, 8 para 10 e 10 para 6.65 a 150 Vca, terminais 6 para 8, 8 para 10 e 10 para 6.

Configuração TP Delta Aberto 240 Vca: 150 a 300 Vca, terminais 6 para 8, 8 para 10 e 10 para 6.

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DSLC

Funções

Digital Synchronizerd L d C t l

Digital Synchronizerd L d C t l

Completo Funções reduzidas

33

32

31

30

29HI IMP

+/- 3V

VOLTAGE BIASOUTPUT

+/- 9V

SPEED BIASOUTPUT

LO IMP

COM

COM3

2

1 -+240

18 - 40 VDCSUPPLY15 WATTS

and Load ControlW DOODWAR

R

33

32

31

30

29HI IMP

+/- 3V

VOLTAGE BIASOUTPUT

+/- 9V

SPEED BIASOUTPUT

LO IMP

COM

COM3

2

1 -+240


and Load ControlW DOODWAR

R

A

B

C

42

41

40

39

38

37

36

35

34

33


(4-20mA, 1-5 VDC)

PROCESSSIGNAL INPUT

(4-20mA, 1-5 VDC)

NETWORK

TERMINATION JPR

COM

REMOVE JPR FOR VDC

REMOVE JPR FOR VDC

12

11

10

9

8

7

6

5

4

3

-

-

-

+

+

+

240

240

240

240

120

120

120

120

N

N GENERATOR

GENERATORPOTENTIALTRANSFORMERS120 OR 240 VAC

BUS APOTENTIALTRANSFORMER120 OR 240 VAC

A

B

C

42

41

40

39

38

37

36

35

34

33


(4-20mA, 1-5 VDC)

PROCESSSIGNAL INPUT

(4-20mA, 1-5 VDC)

NETWORK

TERMINATION JPR

COM

REMOVE JPR FOR VDC

REMOVE JPR FOR VDC

12

11

10

9

8

7

6

5

4

3

-

-

-

+

+

+

240

240

240

240

120

120

120

120

N

N GENERATOR



CHECK

A

B

CDISCRETE INPUT COMMON (-)

44

43

12 N

18

17

16

15

14

13 DIAGNOSTICS ANDSERVICE PORT

(RS-422)

GENERATORCURRENTTRANSFORMERS5 AMPS RMS


CHECK

A

B


44

43

12 N

18

17

16

15

14


(RS-422)



LOAD RAISEHIGH LIMIT

RAMP PAUSELOAD SWITCH

LOAD / UNLOADVOLTAGE LOWER

BASE LOADVOLTAGE RAISE

VOLTAGE LOWERBREAKER OPEN

VOLTAGE RAISEBREAKER CLOSE

18 - 40 VDC DISCRETEOUTPUT POWERSUPPLY INPUT

DISCRETE INPUTSAPPLY 18 - 40 VDC (+)

TO ACTIVATE FUNCTION

DISCRETE OUTPUTSSINK 200 mA DC MAX18 - 40 VDC

CB AUX+

RUN-PERMISSIVE

53

52

51

50

49

48

47

46

45

26

25

24

23

22

21

20

19











CB AUX+

RUN-PERMISSIVE

53

52

51

50

49

48

47

46

45

26

25

24

23

22

21

20

19

Page 1-17

PROCESS CONTROLALARM

SYNCENABLE

LOWLIMIT

HIGHLIMIT

CPUOK

LOAD LOWERLOW LIMIT

55

5427

28 PROCESS CONTROLALARM

SYNCENABLE

LOWLIMIT

HIGHLIMIT

CPUOK

LOAD LOWERLOW LIMIT

55

5427

28

DSLC

Funções Existem dois modelos de DSLCs: Completo e

f õ d idcom funções reduzidas. O DSLC com funções reduzidas não tem o

controle de reativos/fator de potência, mas ele irá responder ao comando de um MSLC sobre controle de reativos/fator de potência.O DSLC com funções reduzidas também não tem o controle de processo.

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DSLC

Programador Manual (HHP)

M B k d

Four LineDisplay

Toggles BetweenUpper and LowerDisplays

Moves BackwardThrough Menu.

Moves ForwardThrough Menu

Synchroscope

Active Power (P)1750 KW

180.0 Degreesp y Through Menu.

"Turtle" keys increaseor decrease the displayed value slowly.

Each Number (0-9)Selects TheCorresponding Menu.

"Rabbit" keys increaseor decrease the displayed value quickly.

Indicates ButtonsN t U d

Displays DSLC SoftwarePart Number & RevisionLevel.

Saves Entered Values

Blanks Display

Page 1-19

Not UsedSaves Entered Values

DSLC

Programador Manual (HHP) O programador manual (HHP) é um pequeno

terminal de computador que é alimentado l DSLCpelo DSLC.

O HHP tem um display de 04 linhas e com i t lh it it d i Misto lhe permite monitorar dois Menus ao mesmo tempo ou dois itens do mesmo Menu simultâneosimultâneo.

Os pontos de configuração e ajustes são arranjados no DSLC em 10 Menus Vocêarranjados no DSLC em 10 Menus. Você pode acessar os Menus apertando as teclas: 1 2 3 4 5 6 7 8 9 and 0 (zero)

Page 1-20

1, 2, 3, 4, 5, 6, 7, 8, 9, and 0 (zero).

DSLC

- Aplicações do DSLC

- Modos de Controle do DSLC

Page 1-21

DSLC

Aplicações do DSLCParalelo com rede em Droop Paralelo com rede em Base de CargaParalelo com rede em Droop Paralelo com rede em Base de Carga

GeneratorUtilityLoad

Utility

GeneratorUtilityLoad

UtilityUtility

Divisão de carga Isócrona

Paralelo com rede em Controle de Processo

GeneratorsDivisão de carga Isócrona

GeneratorPlantLoadGenerator Generator Generator

UtilityLoadLoad

Utility

Page 1-22

DSLC

Aplicações do DSLC Nem todas as funções são utilizadas nas

li õ DSLCaplicações com o DSLC. O usuário tem a opção de selecionar quais

funções são necessárias em sua aplicação O DSLC é aplicado na maioria dos sistemas O DSLC é aplicado na maioria dos sistemas

gerenciadores de potência, principalmente pelo fato dele ser compatível com diversospelo fato dele ser compatível com diversos tipos de Reguladores de Velocidade.

Page 1-23

DSLC

Modos de ControleDiscrete Input

Supply 18 - 40 Vdc

Check ModeSynchronizerMode SelectPermissive ModePERMISSIVE

CHECK

DISCRETE INPUT COMMON (-)

45

44

43

VOLTAGE LOWER

VOLTAGE RAISE

DISCRETE INPUTS

CB AUX

RUNMode Select

Close Both ForVAR / PF Control

Run ModeCB Aux Contact / Open For DroopRaise VoltageLower Voltage49

48

47

46

LOAD RAISE

RAMP PAUSE

LOAD / UNLOAD

BASE LOADAPPLY 18 - 40 VDC (+)


Close Both For

Base Load Load / UnloadLoad Ramp PauseRaise Load53

52

51

50

PROCESS CONTROL

SYNCENABLE

LOWLIMIT

HIGHLIMIT

CPUOK

LOAD LOWER

Close Both ForRemote Load ReferencesLower Load

Process Control55

54

Page 1-24

DSLC

Modos de Controle O Status destes contatos determinam o modo

de controle do DSLC:de controle do DSLC: Modo Sincronismo. Modo Controle de Carga Modo Controle de Carga.

Droop Divisão de carga Isócrona (Paralelo). Base de Carga Isócrona Controle de Processo

Modo Controle Reativos/Fator de Potência Modo Controle Reativos/Fator de Potência Modo Divisão de Fator de Potência

Page 1-25

DSLC

Tabela dos Modos de Controler ac

t

rol

x x 0

0 = Contact Open1 = Contact ClosedX = Don’t Care

= Open to Closed Contact Transition= Closed to Open Contact Transition

x x x x x Droop

Volta

ge R

aise

Volta

ge L

owe r

CB

Aux

Con

taB

ase

Load

Load

/ U

nloa

dR

aise

Loa

dLo

wer

Loa

dP

roce

ss C

ont r

Options:xxxxxxxx

xxxxxxxx

00 0

00

0

0000

0

00

00

11 11 11 1 11 1

1 111

1 111

11

x x xxx

xxx

xxx

DroopBase Load at Lessor of Unload Trip Level or System Load LevelBase Load at Unload Trip LevelRamp to Base Load at Internal Base Load ReferenceBase Load at Internal Base Load ReferenceRaise Internal Base Load ReferenceLower Internal Base Load ReferenceRamp to Base Load at Remote Load Setting Input Level

(1) The internal load reference is equal to the remote reference at the time remote was de-selected.

(2) Unload ramp terminates and breaker open commandis issued when load drops below the unload trip level.

xxxxxxx

xxx

xxxxxxx

xxx

xx

0000

00

00

111111

1111

1

1

1111111

Ramp to Base Load at Remote Load Setting Input LevelRaise / Lower Rate Ramp to Remote Load Setting Input LevelBase Load at Remote Load Setting Input LevelBase Load at Internal Base Load Reference (1)Ramp To Unload Trip Level (2)Ramp To Isochronous Load SharingIsochronous Load Sharing (Parallel)R t P Sl t S t L d L l (3) (7)

(3) Process slave mode is isochronous loadsharing. A Master process control specifies the system load levelto all slaves.

(4) The internal process reference is equal to the remote process reference at the time remote was de-selected.

xxxxxxx

xx

xxxxxxx

xx

00

000

0000

0

11111111

11111

1111 1

1111

111

Ramp to Process Slave at System Load Level (3) (7)Process Slave at System Load Level (7)Ramp to Process Master at Internal Process Reference (7)Ramp to Process Master at Internal Process Reference (7)Process Master at Internal Process Reference (7)Raise Internal Process Reference (7)Lower Internal Process Reference (7)

(5) The base load reference is equal to the process referenceat the time process control was de-selected.

(6) Not recommended. Select base load, switch remotereference input from process reference to load reference, and then select remote.

xxxxxx

x x x

xxxxxx

x x x

0

0

0

111111

11

111111 1

111

11 1

11

1 1111

Ramp to Process Master at Remote Process Reference Input (7)Ramp to Process Master at Remote Process Reference Input (7)Process Master at Remote Process Reference Input (7)Process Master at Internal Process Reference (4) (7)Base Load at Internal Base Load Reference (5)Raise or Lower to Base Load at Remote Load Reference Input Level (6)Raise Voltage Regulator Excitation

and then select remote.

(7) Full function models only

Page 1-26

xx

xx

xxx

xx

xxx

xxx

0

00

0 0 011

11

1

11

11

11

Raise Voltage Regulator ExcitationLower Voltage Regulator ExcitationVAR / PF Control at VAR / PF Reference (7)PF Sharing at System PF (Isochronous) (7)

DSLC

Tabela dos Modos de Controle Os status das oito entradas discretas no topo

d t b l d t i l d dda tabela determinam em qual modo de controle o DSLC está.

0 = Contato aberto 1 = Contato fechado X = Não importa o Status = Transição de contato aberto para fechado = Transição de contato aberto para fechado

= Transição de contato fechado para aberto

Page 1-27

DSLC

Modo de Sincronismove


= Open to Closed Contact Transition- Che

ck- P

erm

issi

v- R

un

= Open to Closed Contact Transition= Closed to Open Contact Transition

Check ModePermissive Mode

110

0 00

44 -

45 -

46 -

Permissive ModeRun Mode

1100

Page 1-28

DSLC

Modo de Sincronismo Rede ou Barramento Infinito:

Ajusta frequência ângulo de fase e Tensão do Ajusta frequência, ângulo de fase e Tensão do geradores a ser paralelado com a rede ou um barramento infinito e então envia um sinal de fechar o disjuntordisjuntor.

Barramento Isolado: Ajusta frequência, ângulo de fase e Tensão do Ajusta frequência, ângulo de fase e Tensão do

geradores a ser paralelado com a barra de geradores e então envia um sinal de fechar o disjuntor.

Modos de operação do sincronizador: Modos de operação do sincronizador: Desligado, Testes, Permissível e Automático.

Page 1-29

DSLC

Modo Controle de Carga

F db kLoad FeedbackLoadReference

S d Bi

Actual

Speed BiasOutputPID

Actual GeneratorLoad

Page 1-30

DSLC

M d C t l d CModo Controle de Carga Modo Proporcional de controle de carga – A saída para ajustar Modo Proporcional de controle de carga A saída para ajustar

a velocidade é proporcional ao erro entre a carga atual e a referência de carga. No modo proporcional uma mudança na frequência da barra No modo proporcional, uma mudança na frequência da barra

irá resultar numa mudança na carga. Usar o modo proporcional quando a frequência da barra fica

estável durante toda a operaçãoestável durante toda a operação. No modo Paralelo a saída do DSLC é proporcional.

Modo Integral de controle de carga – A saída para ajustar a l id d i t l í l id fi d bt dvelocidade integral para um nível requerido afim de obter zero de

erro entre a carga atual e a referência de carga. No modo Integral, uma mudança na frequência não irá resultar

uma mudança na carga. Usar modo Integral quando a frequência pode variar a

qualquer momento.

Page 1-31

Modo Integral terá um efeito quando o DSLC estiver em modo rampa Mode ou em base de carga.

DSLC

DroopGenerator

UtilityLoad

Utility

Rai

seLo

wer

x C

onta

ct

oad

Unl

oad

Load

Load

s C

ontro

l


= Open to Closed Contact Transition- Vol

tage

- V

olta

ge

- CB

Aux

- Bas

e Lo

- Loa

d / U

- Rai

se L

- Low

er L

- Pro

cess

Page 1-32

= Closed to Open Contact Transition

x Droopx

48

x

49

0

47

x

50

x

51

x

53

x

54

55

DSLC

Droop Droop é a operação do gerador para manter

t to mesmo com uma carga constante. Os geradores ficam paralelados a rede e está

mantém a frequência. Droop é realizado com o DSLC em Droop. p p

(Terminal 47 – Entrada CB Aux. aberta). O Valor da potência é determinado pelo O Valor da potência é determinado pelo

ajuste na velocidade do Regulador.

Page 1-33

DSLC

Base de Carga IsócronaGenerator

UtilityLoad

Utility

0 = Contact OpenLoad

Load

ss C

ontro

l

e R

aise

e Lo

wer

x C

onta

ct

Load Unl

oad


= Open to Closed Contact Transition= Closed to Open Contact Transition3

- Rai

se L

4 - L

ower

5

- Pro

ces

8 - V

olta

ge9

- Vol

tage

7 - C

B Au

x

0 - B

ase

L1

- Loa

d /

Page 1-34


x x x Base Load at Unload Trip LevelBase Load at Internal Base Load Reference

53 54 55

xx

48

xx

49

x1

47

11

50

10

51

1 x x

DSLC

Base de Carga IsócronaBase de Carga é a operação de mantermos os Base de Carga é a operação de mantermos os geradores ajustados para uma carga constante.

Os geradores ficam paralelados a rede ou a outro Os geradores ficam paralelados a rede ou a outro gerador e estes são responsáveis em manter a frequência do sistema.

Base de Carga é realizada com o DSLC em Base de Carga, (Terminal 47 – entrada do CB Aux. Fechada, Terminal 50 – Entrada base de carga fechada e terminalTerminal 50 Entrada base de carga fechada e terminal51 – entrada carga/descarga fechada).

O nível da Base de Carga é determinado por uma referência interna de base de carga ou pelo valor de trip por descarga se o terminal 51 – carga/descarga estiver aberto

Page 1-35

aberto.

DSLC

Divisão de Carga IsócronaGenerator

PlantLoadGenerator Generator Generator

t l

0 = Contact Openge R

aise

ge L

ower

ux C

onta

ct

Load

/ Unl

oad

Load

r Loa

dss

Con

tro

0 Contact Open1 = Contact ClosedX = Don’t Care


- Vo

ltag

49 -

Volta

g

47 -

CB

Au

50 -

Base

L51

- Lo

ad /

53 -

Rai

se

54 -

Low

er55

- Pr

oces

Page 1-36

0 1

Closed to Open Contact Transition

x x 0 Isochronous Load Sharing (Parallel)x x

4 4

1

4 5 5 5 5 5

DSLC

Divisão de Carga Isócrona Divisão de carga isócrona (operação para

lti l d ) té t tmultiplos geradores) – mantém constante a frequência do gerador de 0 (zero) a 100% de

i di i ã i lcarga e proporciona a divisão proporcional das cargas entre os geradores.

Um sistema de DSLC´s suporte uma divisão de carga entre até 16 geradores.

Page 1-37

DSLC

Controle de ProcessoGenerators

UtilityLoad

Utility

ad ntro

l

se ertact

0 = Contact Open1 = Contact Closedse

Loa

dad

/ U

nloa

ise

Load

wer

Loa

doc

ess

Con

tage

Rai

sta

ge L

owe

Aux

Con

t

X = Don’t Care= Open to Closed Contact Transition= Closed to Open Contact Transition

P Sl t S t L d L l

50 -

Bas

51 -

Loa

53 -

Rai

54 -

Low

55 -

Pro

48 -

Vol

49 -

Vol

47 -

CB

Page 1-38

00 0

1 x x 1 Process Slave at System Load LevelProcess Master at Internal Process ReferenceProcess Master at Remote Process Reference Input

1 1 1x xx xx x

111 1 1 1 1 1

DSLC

Controle de Processo O controle de processo é destinado a cogeração,

manutenção de um nível de fluídos controle pormanutenção de um nível de fluídos, controle por pressão e outras aplicações.

Sinal de entrada com filtro ajustável da largura de Sinal de entrada com filtro ajustável da largura de banda, ajuste flexível de controle do PID, uma banda morta ajustável e um controle selecionável jpara ação direta ou indireta permite que o controle de processo tenha uma grande

i d d d li õvariedade de aplicações.

Page 1-39

DSLC

Controle Reativos/Fator PotênciaGenerator

UtilityLoad

Utility

0 C Oe R

aise

e Lo

wer

x C

onta

ct

oad

Unl

oad

Load

Load

s C

ontro

l


= Open to Closed Contact TransitionCl d t O C t t T iti8

- Vol

tage

9 - V

olta

ge

7 - C

B Au

x

0 - B

ase

Lo -

Load

/ U

3 - R

aise

L4

- Low

er L

5 - P

roce

ss

Page 1-401 1


x x x VAR / PF Control at VAR / PF Reference1 1

48 49

1

47 50 51 53 54 55

DSLC

Controle Reativos/Fator Potência Em um sistema com barramento infinito o DSLC

compara a potência reativa ou fator de potênciacompara a potência reativa ou fator de potência(programáveis)do gerador com uma referência programável interna e faz as correções no Regulador d T ã té f ê i d tê i tide Tensão até que a referência da potência reativa ou do fator de potência sejam obtidos.

O DSLC dispõe de dois métodos para se fazer o O DSLC dispõe de dois métodos para se fazer o ajuste de tensão no Regulador de Tensão: Saída analógica de +- 9 VCC. Por contatos para aumentar/diminuir tensão.

Para se fazer ajuste manual de tensão existem entradas discretas p/ aumentar/diminuir tensão

Page 1-41

entradas discretas p/ aumentar/diminuir tensão.

DSLC

Divisão Fator de PotênciaGenerator

PlantLoadGenerator Generator Generator

ct ol

0 = Contact Openge R

aise

ge L

ower

ux C

onta

c

Load

/ Unl

oad

Load

r Loa

des

s C

ontro

p1 = Contact ClosedX = Don’t Care


- Vo

ltag

49 -

Volta

g

47 -

CB

Au

50 -

Base

51

- Lo

ad /

53 -

Rai

se

54 -

Low

er55

- Pr

oce

Page 1-42

0 0 0 01

p

PF Sharing at System PF1 1

4 4

1

4 5 5 5 5 5

DSLC

Divisão Fator de Potência O DSLC faz a divisão de fator de potência entre

os geradores para barras isoladas ou emos geradores para barras isoladas ou em sistemas de paralelismo isócrono.

O DSLC computa a média do fator de potência O DSLC computa a média do fator de potência do sistema e a usa como referência de entrada para o controlador de fator de potênciapara o controlador de fator de potência.

O DSLC dispõe de uma referência de tensão programável e a função de nivelar tensõesprogramável e a função de nivelar tensões quando na função divisão afim de manter a tensão do sistema em um nível desejado.

Page 1-43

j

DSLC

- DSLC HardwareDSLC E d S íd- DSLC Entradas e Saídas

Page 1-44

DSLC

DSLC Hardware

29HI IMPVOLTAGE BIAS

Digital Synchronizerand Load Control

W DOODWARREntrada fonte de

alimentaçãoSaída p/ Regulador Tensão

A

36

35

34

33

32

31

30

29HI IMP

+/- 3V

VOLTAGE BIASOUTPUT

+/- 9V

SPEED BIASOUTPUT


(4-20mA, 1-5 VDC)

LO IMP

COM

COM

REMOVE JPR FOR VDC

REMOVE JPR FOR VDC

6

5

4

3

2

1 -

-

+

+

240

240

120

N



alimentação

Entrada TP barramentoSaída p/ Reg. Veloc.Entrada Remota de cargaA

B

C

42

41

40

39

38

37

PROCESSSIGNAL INPUT

(4-20mA, 1-5 VDC)

NETWORK

TERMINATION JPR

REMOVE JPR FOR VDC

12

11

10

9

8

7

-

-

+

+240

240

120

120

120

N GENERATORCURRENTTRANSFORMERS5 AMPS RMS

GENERATORPOTENTIALTRANSFORMERS120 OR 240 VACEntrada TP do gerador

cargaEntrada Sinal Processo

C i ã d

PERMISSIVE

CHECK

A

B


45

44

4318

17

16

15

14


(RS-422)


Entrada TC gerador Comunicação rede LON










CB AUX+

RUN-PERMISSIVE

3

52

51

50

49

48

47

46

45

25

24

23

22

21

20

19

Saídas discretasEntradas Discretas

Page 1-45


SYNCENABLE

LOWLIMIT

HIGHLIMIT

CPUOK

LOAD LOWERLOW LIMIT


55

54

5326

27

28

DSLC

Ligações Cabos Blindados

33

32

31

30

29HI IMP

+/- 3V

VOLTAGE BIASOUTPUT

+/- 9V

SPEED BIASOUTPUT

LO IMP

COM

COMSpeed Control

AVR

38

37

36

35

34

33


(4-20mA, 1-5 VDC)

PROCESS

REMOVE JPR FOR VDC

REMOVE JPR FOR VDC

-+

+

42

41

40

39

38PROCESSSIGNAL INPUT

(4-20mA, 1-5 VDC)

NETWORK

TERMINATION JPR

-

-

+

+ To Other DSLC’s

Page 1-46

DSLC

Ligações Cabos Blindados Todos os cabos blindados deverão ser com

duplo condutores e trançadosduplo condutores e trançados. Todas linhas de sinal deverão utilizar cabos

blindados afim de evitar interferênciasblindados, afim de evitar interferências externas.

A parte exposta do cabo sem a blindagem A parte exposta do cabo sem a blindagem não deverá exceder 50 mm (2 polegadas).

O cabo blindado deverá ter apenas um lado O cabo blindado deverá ter apenas um lado aterrado, o outro deve permanecer isolado.

Page 1-47

DSLC

Entrada Fonte Alimentação

1 - 18 - 40 VDC

PowerSupply 2 +

SUPPLY18 WATTSSupply

InputInput

Page 1-48

DSLC

Entrada Fonte Alimentação O DSLC necessita de uma alimentação nominal de 18 to 40 Vdc, 18 W. Manter a tensão para o controle sempre que o gerador estiver

disponível para operação. A alimentação deve ser aplicada ao DSLC no mínimo 15 segundos

antes do mesmo ser utilizado. O controle deve ter tempo para fazer seu próprio diagnóstico e

identificar sua posição na rede local de maneira a se tornar operacional. F lh d t t di ó ti d bilit f õ d t l Falha durante o auto diagnóstico, desabilita as funções de controle ativa o relé de alarme.

Nunca alimente o controle através de uma fonte de alta tensão com resistores de queda e diodo zener.

Se o controle for alimentado por baterias, um carregador é necessário para manter as mesmas com tensão estável.

Page 1-49

DSLC

Transformador de Potência “Barra”

4

3 240

120BUS APOTENTIALTRANSFORMER4

3 240

120BUS APOTENTIALTRANSFORMER

BUS APOTENTIAL

120 / 240 VCA WYEC fi ã E t l5 N

TRANSFORMER120 OR 240 VAC5 NTRANSFORMER120 OR 240 VACTRANSFORMER

120 OR 240 VACConfiguração Estrela

5

4

3 A

NC

B

BUS POTENTIALTRANSFORMER120 V, 45 - 66 Hz.

BUS POTENTIALTRANSFORMER120 V 45 66 Hz

120 VCA Open DeltaConfiguração Delta Aberto

5 B120 V, 45 - 66 Hz. g ç

5

4

3 A

NC

B




Page 1-50

DSLC

Transformador de Potência “Barra” A entrada de potencial para o sincronizador

no DSLC é conectado ao secundário dono DSLC é conectado ao secundário do transformador de potência (TP) em 120 ou 240 VAC240 VAC.

A fase “A” da barra deverá corresponder a fase “A” do gerador da mesma maneira quefase A do gerador da mesma maneira que conectado ao DSLC.

O sentido de rotação das fases da barra deve O sentido de rotação das fases da barra deve corresponder ao sentido de rotação do gerador para uma sincronização adequada.

Page 1-51

g p ç q

DSLC

Transformador Potência “Gerador”A

B9

8

7

6

240

240

120

120GENERATORPOTENTIALTRANSFORMERS120 OR 240 VAC

GENERATORPOTENTIALTRANSFORMERS

120 / 240 VCA WyeC fi ã E t l

C

12

11

10 240

120

N

TRANSFORMERS120 OR 240 VAC Configuração Estrela

A

B

C10

9

8

7

6

NC

NCGENERATORPOTENTIALTRANSFORMERS120 V, 45 - 66 Hz.

GENERATORPOTENTIALTRANSFORMERS120 V 45 66 H


C

12

11

10

NC

NC120 V, 45 - 66 Hz.

A6

g ç

A

B

C10

9

8

7

6

NC

NCGENERATORPOTENTIALTRANSFORMERS240 V, 45 - 66 Hz.

GENERATORPOTENTIALTRANSFORMERS240 V, 45 - 66 Hz.


Page 1-52

12

11

NC

NC240 V, 45 66 Hz.

DSLC

Transformador Potência “Gerador”

A entrada de potencial para o DSLC é conectado ao secundário do transformador de potência “TP” em 120 pou 240 VAC.

O sentido de rotação de fase do O sentido de rotação de fase do gerador deverá corresponder ao sentido de rotação da barra para uma correta sincronização.

Page 1-53

ç

DSLC

Transformadores de CorrenteTransformadores de Corrente “Gerador”Gerador

A14

13AB

C18

17

16

15 GENERATORCURRENTTRANSFORMERS5 AMPS RMSB

C

Page 1-54

DSLC


Ligar a saída dos transformadores de corrente do gerador as entradas para transformadores degerador, as entradas para transformadores de corrente do DSLC (respeitar a sequência de fases).

Para uma operação adequada, é importante que os Para uma operação adequada, é importante que os transformadores sejam ligados corretamente. Isto significa que deve existir uma correspondência entre as fases dos transformadores de potência e de corrente, além de observada a correta polaridade dos transformadores de correntetransformadores de corrente.

Page 1-55

DSLC


Não Remova com carga

A14

13

B

17

16

15

14GENERATORCURRENTTRANSFORMERS5 AMPS RMS

C18

Page 1-56

DSLC


Perigo: Por motivo de risco de um choque

elétrico fatal, nunca desconecteelétrico fatal, nunca desconecte nenhum cabo dos trasformadores de corrente com o gerador em operaçãocorrente com o gerador em operação, somente faça isto após curto circuitar o TC e fazer a instalação temporária deTC e fazer a instalação temporária de um resistor de 1 Ohm 5Watts.

Page 1-57

DSLC

Saídas Discretas

BREAKER CLOSEBreaker Close Relay


18 - 40 VDC DiscreteOutput Power Supply Input ++

--

21

20

19

VOLTAGE LOWERVoltage Lower RelayVOLTAGE RAISEVoltage Raise RelayBREAKER OPENBreaker Open RelayBREAKER CLOSEBreaker Close Relay

DISCRETE OUTPUTSSINK 200 mA DC MAX

24

23

22

21

ALARMAlarm RelayLOW LIMITLow Limit RelayHIGH LIMITHigh Limit RelayLOAD SWITCHLoad Switch Relay

SINK 200 mA DC MAX18 - 40 VDC

26

27

28

25

ALARMAlarm Relay 28

Form A Relay Form B Relay F C R lForm A Relay Form B Relay Form C Relay

Page 1-58

DSLC

Saídas Discretas Cada saída discreta é isolada opticamente e é designada como

de baixa capacidade, podendo suportar até 200 ma.de baixa capacidade, podendo suportar até 200 ma. A utilização de drivers permite aumentar a capacidade das

saídas para alimentar relés de maior capacidade.í As saídas discretas necessitam de aproximadamente 10 ma em

24 VCC de alimentação. As saídas discretas devem ser alimentadas pela mesma fonte s sa das d sc etas de e se a e tadas pe a es a o te

do controle. Cada saída discreta possui um diodo supressor para eliminar

os picos gerados quando a bobina é desenergizadaos picos gerados quando a bobina é desenergizada. Para uma melhor supressão de Interferência Eletromagnética

(EMI), usar relés com seu próprio diodo supressor.

Page 1-59

DSLC

Relés do Disjuntor do Gerador

18 - 40 VDC DISCRETE18 - 40 VDC Discrete -- 19

BREAKER OPENBreaker Open RelayBREAKER CLOSEBreaker Close Relay

18 40 VDC DISCRETEOUTPUT POWERSUPPLY INPUT

18 40 VDC DiscreteOutput Power Supply Input ++

--

22

21

20

19

HIGH LIMIT

LOAD SWITCH

VOLTAGE LOWER

VOLTAGE RAISE


26

25

24

23

ALARM

LOW LIMIT

HIGH LIMIT26

27

28

Page 1-60

DSLC

Relés do Disjuntor do Gerador

Conectar o relé de fechamento do disjuntor do gerador ao terminal 21.

Conectar o Relé de abertura do Conectar o Relé de abertura do disjuntor do gerador ao terminal 22.

O rele de abertura do disjuntor é normal energizado, o mesmo é desernegizado para abrir o disjuntor.

Page 1-61

desernegizado para abrir o disjuntor.

DSLC

Relés de Ajuste de Tensão18 - 40 VDC DISCRETEOUTPUT POWERSUPPLY INPUT


--20

19

VOLTAGE LOWERVoltage Lower RelayVOLTAGE RAISEVoltage Raise RelayBREAKER OPEN

BREAKER CLOSE

DISCRETE OUTPUTS24

23

22

21

LOW LIMIT

HIGH LIMIT

LOAD SWITCH

O G Oo tage o e e aySINK 200 mA DC MAX18 - 40 VDC

26

27

25

24

ALARM28

Page 1-62

DSLC

Relés de Ajuste de Tensão

Relés opcionais para ajuste de tensãosão conectados nas entradas do Regulador de Tensão para aumentar ou g pdiminuir a tensão via contatos.

Page 1-63

DSLC

Relés de Gerenciamento deRelés de Gerenciamento de CargaCarga



--20

19

VOLTAGE RAISE

BREAKER OPEN

BREAKER CLOSE

+

23

22

21

20

LOW LIMITLow Limit RelayHIGH LIMITHigh Limit RelayLOAD SWITCHLoad Switch or Reverse Power RelayVOLTAGE LOWER DISCRETE OUTPUTS

SINK 200 mA DC MAX18 - 40 VDC

26

27

25

24

ALARM

y 27

28

Page 1-64

DSLC

Relés de Gerenciamento deRelés de Gerenciamento de CargaCarga

O DSLC proporciona três acionadores de relés para serem conectados a relés fornecidos pelo cliente paraserem conectados a relés fornecidos pelo cliente para se fazer o gerenciamento de carga.

Estes acionadores incluem: Uma chave para ajuste de set point de carga.

Se a chave de carga (terminal 25) está habilitada como trip por potência reversa, a chave de carga é desabilitada.p g

Uma chave de limite máximo que pode ser selecionada como uma chave de carga ou como um alarme indicador de ter alcançado o limite máximo de carga.ç g

Uma chave de limite mínimo que pode ser selecionada como uma chave de carga ou como um alarme indicador de ter alcançado o limite mínimo de carga.

Page 1-65

ter alcançado o limite mínimo de carga.

DSLC

Relé de Alarme18 - 40 VDC DISCRETEOUTPUT POWERSUPPLY INPUT


--20

19

VOLTAGE LOWER

VOLTAGE RAISE

BREAKER OPEN

BREAKER CLOSE

DISCRETE OUTPUTS24

23

22

21

LOW LIMIT

HIGH LIMIT

LOAD SWITCH

VOLTAGE LOWER DISCRETE OUTPUTSSINK 200 mA DC MAX18 - 40 VDC

26

27

25

24

ALARMAlarm Relay 28

Page 1-66

DSLC

R lé d AlRelé de Alarme O relé de alarme é normal energizado O relé de alarme é normal energizado. As condições de alarme são selecionáveis pelo

usuário através dos Menus. Os alarmes disponíveis no DSLC são:

SYNCHRONIZER TIMEOUT (Tempo para sincronização esgotado)esgotado)

SYNCHRONIZER RECLOSE LIMIT (Quando excede o número de tentativas de sincronismo)

HIGH LOAD LIMIT (Limite de carga Máxima) HIGH LOAD LIMIT (Limite de carga Máxima) LOW LOAD LIMIT (limite de carga Mínima) HIGH PROCESS LIMIT (Limite Máximo de processo) LOW PROCESS LIMIT (Limite Mínimo de processo) VOLTAGE RANGE LIMIT (Limite do Range de Tensão) LOW VOLTAGE LIMIT (Limite Mínimo de Tensão)

Page 1-67

LOW VOLTAGE LIMIT (Limite Mínimo de Tensão) HIGH VOLTAGE LIMIT(Limite Máximo de Tensão)

DSLC

S íd A ló i R l dSaída Analógica para Regulador Automático de TensãoAutomático de Tensão

31

30


+/- 9V

AutomaticLO IMP

COM 31

VOLTAGE BIASINPUT

Automatic Voltage Regulator

COM

Page 1-68

DSLC

Saída Analógica para ReguladorSaída Analógica para Regulador Automático de TensãoAutomático de Tensão

Ótima performance da regulagem de tensão é obtida quando o Regulador de Tensão possui uma entrada auxiliarTensão possui uma entrada auxiliar (DC) para ajuste de tensão e esta é conectada ao DSLCconectada ao DSLC.

Um controle opcional do AVR(Regulador de Tensão) é feita através de entradas discretas.

Page 1-69

DSLC

S íd A ló i Aj t dSaída Analógica para Ajuste de VelocidadeVelocidade

32+SPEED BIAS SpeedSpeed

33

32SPEED BIASOUTPUT -

SpeedBiasInput Control

Page 1-70

DSLC

S íd A ló i Aj t dSaída Analógica para Ajuste de VelocidadeVelocidade

O DSLC possui as seguintes saídasO DSLC possui as seguintes saídas para Reguladores: ±3.0 VCC; 1-5 VCC; 0 5 4 5 VCC; and PWM Estas saídas0.5 - 4.5 VCC; and PWM. Estas saídas são selecionadas pelo P/N do DSLC.

Conecte a blindagem dos cabos à Terrasomente do lado do Regulador. g

Page 1-71

DSLC

Entradas DiscretasDiscrete Input

Supply 18 - 40 Vdc

Check ModeSynchronizerMode SelectPermissive ModePERMISSIVE

CHECK


45

44

43

VOLTAGE LOWER

VOLTAGE RAISE

DISCRETE INPUTS

CB AUX

RUNMode Select


Run ModeCB Aux Contact / Open For DroopRaise VoltageLower Voltage49

48

47

46

LOAD RAISE

RAMP PAUSE

LOAD / UNLOAD



Close Both For

Base Load Load / UnloadLoad Ramp PauseRaise Load53

52

51

50

PROCESS CONTROL

SYNCENABLE

LOWLIMIT

HIGHLIMIT

CPUOK

LOAD LOWER

Close Both ForRemote Load ReferencesLower Load

Process Control55

54

Page 1-72

DSLC

Entradas Discretas As entradas discretas são comandadas por chaves

para o DSLCpara o DSLC . As entradas discretas são opticamente isoladas para

o controle e requer 10 mA em 24 VCC cada parao controle e requer 10 mA em 24 VCC cada para serem ativadas.

A alimentação para as entradas discretas pode ser aA alimentação para as entradas discretas pode ser a mesma alimentação do DSLC.

Todos os contatos usados nos circuitos discretos devem ser do tipo contato seco isolado, uma vez que estes circuitos trabalham com pequenas correntes

Page 1-73

DSLC

Seleção do Modo de SincronismoDiscrete Input

Supply 18 - 40 Vdc

DISCRETE INPUT COMMON ( ) 43

CB AUX

RUN

Check ModeSynchronizerMode SelectPermissive Mode

Run ModePERMISSIVE

CHECK


47

46

45

44

43

LOAD / UNLOAD

BASE LOAD

VOLTAGE LOWER

VOLTAGE RAISE



CB AUX

51

50

49

48

47

LOAD LOWER

LOAD RAISE

RAMP PAUSE

LOAD / UNLOAD

54

53

52

51

PROCESS CONTROL

SYNCENABLE

LOWLIMIT

HIGHLIMIT

CPUOK

55

Page 1-74

DSLC

Seleção do Modo de Sincronismo

A chave de modo de sincronismo controla o modo de operação dosincronizador.

As quatro posições são: Desligado, Teste Permissível e AutomáticoTeste, Permissível e Automático.

Quando a chave está em Desligado o Sincronizador está fora de operação.

Page 1-75

DSLC

Entrada do Contato Auxiliar doEntrada do Contato Auxiliar do Disjuntor (CB AUX)Disjuntor (CB AUX)

Discrete InputSupply 18 - 40 Vdc

RUN

PERMISSIVE

CHECK


46

45

44

43

VOLTAGE LOWER

VOLTAGE RAISE


CB AUX

RUN

Isoch / Droop Switch49

48

47

46

LOAD RAISE

RAMP PAUSE

LOAD / UNLOAD

BASE LOADAPPLY 18 40 VDC ( )

TO ACTIVATE FUNCTION CB Aux Contact

53

52

51

50

PROCESS CONTROL

SYNCENABLE

LOWLIMIT

HIGHLIMIT

CPUOK

LOAD LOWER

55

54

Page 1-76

DSLC

Entrada do Contato Auxiliar doEntrada do Contato Auxiliar do Disjuntor (CB AUX)Disjuntor (CB AUX)

Conecte o contato auxiliar do disjuntor (CB Aux.) de j ( )tal maneira que este contato abra quando o disjuntor esteja aberto e feche quando o disjuntor estiverfechado.

Quando a operação isócrono e droop são requeridas, t h é i CB Aconecte uma chave em série com o CB Aux, para

que você possa selecionar operação em droop ou isócronaisócrona.

Page 1-77

DSLC

Chaves para Ajustes de TensãoChaves para Ajustes de Tensão do Geradordo Gerador


PERMISSIVE

CHECK


45

44

43

VOLTAGE LOWER

VOLTAGE RAISE

DISCRETE INPUTSAPPLY 18 40 VDC (+)

CB AUX

RUN


Raise VoltageLower Voltage49

48

47

46

LOAD RAISE

RAMP PAUSE

LOAD / UNLOAD



53

52

51

50

PROCESS CONTROL

SYNCENABLE

LOWLIMIT

HIGHLIMIT

CPUOK

LOAD LOWER

55

54

Page 1-78

DSLC

Chaves para Ajustes de TensãoChaves para Ajustes de Tensão do Geradordo Gerador

As chaves para ajustes de tensão do gerador são utilizadas para um ajuste de tensão manual eutilizadas para um ajuste de tensão manual e acionam as saídas discretas de aumentar ou diminuir tensão do DSLC ou acionam a saída analógica diretamente para o Regulador de Tensão.

Fechando ambas as chaves de aumentar e diminuirhabilita a função de controle de reativos/fator de potência (apenas nos DSLCs com funções completas “F ll F ti ”)“Full Functions”).

Page 1-79

DSLC

Contatos para o Modo de ControleContatos para o Modo de Controle de Cargade Carga


PERMISSIVE

CHECK


45

44

43

VOLTAGE LOWER

VOLTAGE RAISE

DISCRETE INPUTSAPPLY 18 40 VDC ( )

CB AUX

RUN

CB Aux Contact / Open For Droop

49

48

47

46

LOAD RAISE

RAMP PAUSE

LOAD / UNLOAD


TO ACTIVATE FUNCTION Base Load Load / Unload

53

52

51

50

PROCESS CONTROL

SYNCENABLE

LOWLIMIT

HIGHLIMIT

CPUOK

LOAD LOWER

55

54

Page 1-80

DSLC

Contatos para o Modo de ControleContatos para o Modo de Controle de Cargade Carga

O modo de controle é determinado pelo status dos seguintes contatos de entrada: CB Aux (terminal 47)seguintes contatos de entrada: CB Aux (terminal 47), Base de Carga (terminal 50) e Carga/Descarga (terminal 51).

O status destes três contatos de entrada determinamos cinco modos de controle de carga a seguir: Droop Droop Divisão de Carga Isócrona (descarga até o nível de trip) Divisão de Carga Isócrona Base de Carga (descarga até o nível de trip) Base de Carga (Sistema com Barramento Infinito)

Page 1-81

DSLC

Contato para Anular RampaDiscrete InputDiscrete Input

Supply 18 - 40 Vdc

DISCRETE INPUT COMMON ( ) 43

RUN

PERMISSIVE

CHECK


46

45

44

43

BASE LOAD

VOLTAGE LOWER

VOLTAGE RAISE



CB AUX

50

49

48

47

LOAD RAISE

RAMP PAUSE

LOAD / UNLOAD

BASE LOADTO ACTIVATE FUNCTION

Load Ramp Pause53

52

51

50

PROCESS CONTROL

SYNCENABLE

LOWLIMIT

HIGHLIMIT

CPUOK

LOAD LOWER

55

54

Page 1-82

DSLC

Contato para Anular Rampa

Quando este contato é fechado, qualquer rampa de carga/descarga é mantida em seu valor atual até que este qcontato é novamente aberto.

Page 1-83

DSLC

Contato Aumentar/Diminuir CargaDiscrete Input

Supply 18 - 40 Vdc

DISCRETE INPUT COMMON (-) 43

CB AUX

RUN

PERMISSIVE

CHECK


47

46

45

44

43

LOAD / UNLOAD

BASE LOAD

VOLTAGE LOWER

VOLTAGE RAISE



CB AUX

51

50

49

48

47

LOAD LOWER

LOAD RAISE

RAMP PAUSE

LOAD / UNLOAD

Close Both ForRemote Load References

Raise LoadLower Load54

53

52

51

PROCESS CONTROL

SYNCENABLE

LOWLIMIT

HIGHLIMIT

CPUOK

55

Page 1-84

DSLC

Contato Aumentar/Diminuir Carga Conecte uma chave de duplo pólo com zero

t l t i l 53 54central aos terminals 53 e 54. Se você usar uma referência remota, instale

uma outra chave de duplo pólo para simultaneamente selecionar (fechar) ambos os contatos de aumentar/diminuir carga

Estes contatos são também utilizados para paumentar/diminuir velocidade manual, antes do disjuntor estar fechado.

Page 1-85

j

DSLC

Contato Modo Controle deContato Modo Controle de Processo Discrete InputProcesso Discrete Input

Supply 18 - 40 Vdc

DISCRETE INPUT COMMON (-) 43

RUN

PERMISSIVE

CHECK

SC U CO O ( )

46

45

44

43

BASE LOAD

VOLTAGE LOWER

VOLTAGE RAISE



CB AUX

50

49

48

47

LOAD LOWER

LOAD RAISE

RAMP PAUSE

LOAD / UNLOAD

54

53

52

51

PROCESS CONTROL

SYNCENABLE

LOWLIMIT

HIGHLIMIT

CPUOK

LOAD LOWER

Process Control55

54

Page 1-86

DSLC

Contato Modo Controle deContato Modo Controle de ProcessoProcesso

Para uso somente nos DSLCs com funções completas (Full Functions).

Quando este contato é fechado junto Quando este contato é fechado junto com o CB Aux e o Carga/Descarga, a carga é controlada a um nívelcarga é controlada a um nível necessário para manter o valor requerido na entrada analógica para controle de processo.

Page 1-87

p

DSLC

Entrada Referência Remota Carga

34REMOVE JPR FOR VDC

PLC36

35REMOTE LOADREFERENCE INPUT

(4-20mA, 1-5 VDC) -+ PLC

Page 1-88

DSLC

Entrada Referência Remota Carga Faça as ligações do Trasmissor de

f ê i d t i ireferência de carga para os terminais do DSLC.

Para trasmissores de 4-20 ma, um jumper deverá ser instalado entre osj pterminais 34 e 35.

Para trasmissores de 1-5 VCC o Para trasmissores de 1 5 VCC, o jumper não deverá ser instalado.

Page 1-89

DSLC

Entrada Sinal de Processo

P39

38

37

PROCESSSIGNAL INPUT

(4-20mA, 1-5 VDC)

REMOVE JPR FOR VDC

-+

ProcessTransducer

Page 1-90

DSLC

Entrada Sinal de Processo Controle de Processo mantem um nível de

KW no gerador determinado por um sinal deKW no gerador determinado por um sinal de entrada externo de processo.

A entrada do sinal de processo gera um sinal A entrada do sinal de processo gera um sinal de realimentação de 4-20 ma (proporcional para a medição do processo) para o DSLCpara a medição do processo) para o DSLC.

O DSLC varia a carga em KW no gerador para manter a referência do set point depara manter a referência do set point de processo quando operando no modo de controle de processo.

Page 1-91

p

DSLC

Rede LonWorks™

41

40NETWORK

-+

42

41

TERMINATION JPR

Jumper

Page 1-92

DSLC

Rede LonWorks™ Usar somente blindagem recomendada, cabo

d t d d L W kde par trançado para a rede LonWorks. A rede tem de ser propriamente terminada

em cada final de cabo. Em todos os DSLC, MSLC ou dispositivos da , p

Woodward compatíveis com LonWorks proporcionam uma terminação de rede com a p p çinstalação de um jumper em cada final do cabo de comunicação.

Page 1-93

ç

DSLC

Conector para o Hand Held

DIAGNOSTICS ANDSERVICE PORT

(RS-422)

Page 1-94

DSLC

Conector para o Hand Held

O programador Manual (Hand Held Programmer – HHP) é um pequeno terminal de computador que é p qalimentado pelo DSLC.

Quando é plugado ao DSLC o Quando é plugado ao DSLC, o programador Manual roda uma rotina de diagnóstico.

Page 1-95

DSLC

LED’s

SYNCENABLE

LOWLIMIT

HIGHLIMIT

CPUOK

Page 1-96

DSLC

LED’LED’s Quatro diodos Emissores de Luz (LED’ s) estão Quatro diodos Emissores de Luz (LED s) estão

disponíveis para as seguintes indicações:

SYNC ENABLE (Habilita sincronização) Ilumina quando a barra da rede e do gerador estão dentro da

janela do ângulo da fase ajustada.janela do ângulo da fase ajustada. LOW LIMIT (Limites Mínimo)

Ilumina quando as entradas de carga, tensão ou processo estão no limite mínimo pré-ajustado Selecionável nosestão no limite mínimo pré ajustado. Selecionável nos Menu’ s.

HIGH LIMIT (Limites Máximo) Ilumina quando as entradas de carga tensão ou processo Ilumina quando as entradas de carga, tensão ou processo

estão no limite máximo pré-ajustado. Selecionável nos menu’ s.

CPU OK

Page 1-97

CPU OK Deve manter iluminado sempre que o DSLC estiver ligado.

DSLC

Section Four

- Hand Held Programmer (HHP)Hand Held Programmer (HHP)- DSLC Menus 5,6,7,8,9,and 0

Page 1-98

DSLC

Handheld Display

M B k d

Four LineDisplay

Toggles BetweenUpper and LowerDisplays

Moves BackwardThrough Menu.

Moves ForwardThrough Menu

Synchroscope

Active Power (P)1750 KW

180.0 Degreesp y Through Menu.

"Turtle" keys increaseor decrease the displayed value slowly.

Each Number (0-9)Selects TheCorresponding Menu.

"Rabbit" keys increaseor decrease the displayed value quickly.

Indicates ButtonsN t U d

Displays DSLC SoftwarePart Number & RevisionLevel.

Saves Entered Values

Blanks Display

Page 1-99

Not UsedSaves Entered Values

DSLC

Handheld Display The Hand Held Programmer (HHP) is a small

computer terminal that gets its power from the DSLCcomputer terminal that gets its power from the DSLC control.

The HHP screen features a four-line, back-lit LCD display that lets you look at two separate functions or menu items at the same time.

The DSLC control set points or adjustments are The DSLC control set points or adjustments are arranged in ten menus. You access these menus with the 1, 2, 3, 4, 5, 6, 7, 8, 9, and 0 (zero) keys.

Pressing the appropriate key selects and displays the first item on each menu.

Page 1-100

DSLC

Menus 5, 6, 7, 8, 9, & 0 Menu 5 must be set-up before running the

DSLCDSLC. Menu 5 - Configuration Menu 6 - Calibration Menu 7 - Generator Electrical Parameters Menu 8 - Control Status Monitor Menu 9 - Discrete Inputs and Outputs Menu 0 - Diagnostics

Page 1-101

DSLC

Menu 5 - ConfigurationMin. Max. Default Unit

Configuration Key 0 100 0PT Winding Ratio 1:1 1000:1 1 0 : 1PT Winding Ratio 1:1 1000:1 1.0 : 1CT Winding Ratio 5:5 10000:5 5:5PT Voltage 120 240 120 VACgVoltage Display V(L-L) V(L-N) V(L-N) V, KVSystem Frequency 50 60 60 Hz.P C t l A ti Di t I di t I di tProcess Control Action Direct Indirect IndirectNetwork Address 1 16 0 (unconfigured)Network Service Pin Transmits unique ID code to LONNetwork Service Pin Transmits unique ID code to LONRevert Status Lock in Hardware Hardware

LastN t D t Ti 5 50 5 S

Page 1-102

Net Dropout Time .5 50 5 Sec.

DSLC

Configuration KeyMin. Max. Default Unit

Configuration Key 0 100 0

Configuration Key is a security password needed to adjust configuration menu set points.

Discrete input switches must be opened.G t lt t b 40 lt Generator voltage must be < 40 volts.

Must set "Configuration Key" value to 49 beforemenu values can be changedmenu values can be changed.

NOTE: Without the Configuration Key entered the menu

Page 1-103

NOTE: Without the Configuration Key entered the menu items can be viewed (but not changed).

DSLC

PT Winding RatioMin. Max. Default Unit

PT Winding Ratio 1:1 1000:1 1.0 : 1PT Wi di R ti i t t d t th t ti l PT Winding Ratio is set to correspond to the potential transformer winding ratio.

NOTE: Bus and generator potential transformers must be the same ratio.

Example:

480 Vac L L or

Example:

120 Vac L N480 Vac L-L or277 Vac L-Nfrom generator

120 Vac L-Nto Control

Page 1-104

DSLC

CT Winding RatioMin. Max. Default Unit

CT Winding Ratio 5:5 10000:5 5:5

CT Rating is set to correspond to the current transformer ratio. The CT senses the generator current (load) and is si ed to gi e the DSLC 5 0 amps at f ll load

Current

sized to give the DSLC 5.0 amps at full load.

Power LeadFrom Generator

To LoadFrom Generator

C.T.

Page 1-105

C.T.

DSLC

Voltage and Frequency ConfigurationMin. Max. Default Unit

PT Voltage 120 240 120 VACVoltage Display V(L-L) V(L-N) V(L-N) V, KVSystem Frequency 50 60 60 Hz.

PT V lt I t ifi h th th 120 240 PT PT Voltage Input specifies whether the 120 or 240 PT voltage inputs are used.

Voltage Display specifies whether voltages are Voltage Display specifies whether voltages are displayed on the Hand Held Programmer as volts line-to-neutral, volts line-to-line. Kilovolts line-to-neutral, or kilovolts line-to-line on systems of greater then 33,000 V.

System Frequency is set to nominal system operating f (50/60 H )

Page 1-106

frequency (50/60 Hz).

DSLC

Process Control ActionMin. Max. Default Unit

Process Control Action Direct Indirect Indirect

Process Control Action specifies if the process variable is direct or indirect acting. If the process ariable increases hen generator load If the process variable increases when generator load increases, the action is direct.

If the process variable decreases when generator load If the process variable decreases when generator load increases, the action is indirect.

Page 1-107

DSLC

Network AddressMin. Max. Default Unit

Network Address 1 16 0 (unconfigured)

Network Address is a unique address (1 to 16) for each DSLC and MSLC in a system.After setting the net ork address press the “SAVE” ke After setting the network address, press the “SAVE” key to put the new address into effect.

Page 1-108

DSLC

Network Service PinMin. Max. Default Unit

Network Service Pin Transmits unique ID code to LON

Network Service Pin causes a unique identification code to be transmitted on the network.This is sed for net ork management in s stems This is used for network management in systems containing other network devices than DSLC controls.

An example is when a DSLC / MSLC / 723 Plus system An example is when a DSLC / MSLC / 723 Plus system is being bound together. The Network Service Pin is used to identify each item on the LON.

Page 1-109

DSLC

Revert StatusMin. Max. Default Unit

Revert Status Lock in Hardware HardwareLast

Revert Status is a method of specifying which control mode will have control of the DSLC in case the LONmode will have control of the DSLC in case the LON failure.

If Lock In Last is selected, the DSLC will hold all values, , ,and control will continue.

If Hardware is selected, the DSLC will revert back to the Di t I t t l d l tiDiscrete Input control mode selections.

Page 1-110

DSLC

Net Dropout TimeMin. Max. Default Unit

Net Dropout Time .5 50 5 Sec.

Net Dropout Time is the the time allowed before a network failed condition is detected.

At the time of detection, the Revert Status is then initiated (Lock-in-Last or Hardware).

Page 1-111

DSLC

Menu 6 - CalibrationMin. Max. Default Unit

Calibration Key 0 100 0Process Input 0 22 n/a mAProcess Input 0 22 n/a mARemote Input 0 22 n/a mASpeed Bias Output -100 +100 n/a %Voltage Bias Output -100 +100 n/a %Voltage Bias Output 100 100 n/a %PT Phase A 0 300*PT Ratio n/a V, KVPT Phase B 0 300*PT Ratio n/a V, KVPT Phase C 0 300*PT Ratio n/a V, KVPT Phase C 0 300 PT Ratio n/a V, KVCT Phase A 0 7*CT Rating n/a AmpsCT Phase B 0 7*CT Rating n/a AmpsCT Phase C 0 7*CT Rating n/a AmpsCT Phase C 0 7 CT Rating n/a AmpsBus Voltage* 0 300*PT Ratio n/a V, KVSynchroscope* -57.3 +57.3 n/a degreesCommand Input Hardware Network Hardware

Page 1-112

Command Input Hardware Network HardwareNOTE: These menu items are normally not used unless the bus and generator PT configurations are different (Wye

and Delta). Bus voltage and Synchroscope phase angle will have to be adjusted due to a 30 degrees phase shift.

DSLC

Calibration KeyMin. Max. Default Unit

Calibration Key 0 100 0

Calibration Key is a security password needed to adjust the calibration menu set points.

Calibration should be done using calibrated reference meters.M t t ”C lib ti K " l t 49 b f Must set ”Calibration Key" value to 49 before menu values can be changed.

Page 1-113

DSLC

Calibration Procedure This Calibration Procedure is used to calibrate the DSLC and This Calibration Procedure is used to calibrate the DSLC and

compensate for component tolerances . This procedure will bias the DSLC equation to compensate for

less then realistic PT & CT Ratingsless then realistic PT & CT Ratings. Adjust the HHP to view “PT Phase A” (Menu 6) on the top line

and “Phase A Voltage” (Menu 7) on the bottom line.

Monitor the actual “A” phase generator voltage with a calibrated voltmeter or existing voltmeters.

Adjust “PT Phase A” (Menu 6) with the adjust keys until “Phase A Voltage” (Menu 7) matches the voltmeter.g ( )

Repeat this procedure for calibration of the rest of the menu items, Phase B, C Voltage, Phase A,B,C Current, Process

Page 1-114

items, Phase B, C Voltage, Phase A,B,C Current, Process Input, Remote Input, Speed Bias Output and Voltage Bias Output.

DSLC

Command InputMin. Max. Default Unit

Command Input Hardware Network Hardware

Command Input is a tunable used to select between using the Discrete Inputs and the LON for selecting the DSLC mode of operation.

Page 1-115

DSLC

Menu 7 - Generator Electrical Parameters

The items in Menu 7 are used to monitor the generator electrical parameters.p

Page 1-116

DSLC

Menu 7 - Generator Electrical ParametersName Min. Max. UnitName Min. Max. UnitActive Power (P) -30000 +30000 W, KW, MWApparent Power (S) -30000 +30000 KVAReactive Power (Q) 3000 (abs.) 3000 (gen.) KVARP F t (PF) 0 0 L di 0 0 L iPower Factor (PF) 0.0 Leading 0.0 LaggingPhase A Volts 40 * PT Ratio 300 * PT Ratio Volts, KVPhase A Amperes 0 7* CT Rating AmperesPhase A PF 0.0 Leading 0.0 Laggingg gg gPhase B Volts 40 * PT Ratio 300 * PT Ratio Volts, KVPhase B Amperes 0 7* CT Rating AmperesPhase B PF 0.0 Leading 0.0 LaggingPh C V lt 40 * PT R ti 300 * PT R ti V lt KVPhase C Volts 40 * PT Ratio 300 * PT Ratio Volts, KVPhase C Amperes 0 7* CT Rating AmperesPhase C PF 0.0 Leading 0.0 LaggingGen Frequency 0 66 Hertzq yBus Frequency 0 66 HertzBus Voltage 40 * PT Ratio 300 * PT Ratio Volts, KVSynchroscope -180 +180 DegreesSlip Frequency 1 0 Slow +5 0 Fast Hertz

Page 1-117

Slip Frequency -1.0 Slow +5.0 Fast HertzSystem Load -100 +120 %System PF 0.0 Leading 0.0 Lagging

DSLC

Menu 8 - Control Status Monitor

The items in Menu 8 are used to monitor the control and alarm status of the DSLC.

Page 1-118

DSLC

Menu 8 - Control Status MonitorName ValueSynchronizer Mode Off, Auto Off, Permissive, Check, Run, Sync Timer,

Synchronized

Load Control Mode Droop, At Unload Trip, Base Load Ramp, Base Load, BaseLoad Control Mode Droop, At Unload Trip, Base Load Ramp, Base Load, Base Load Lower, Base Load Raise, Remote Ramp, Remote, Unload Parallel, Parallel Ramp, Parallel, Unload Ramp, Process Ramp, Process Master, Process Lower, Process Raise

Load Reference Current Load Reference, Load Low Limit PU, Load High Limit PU

Process Reference Current Process Reference, Load Low Limit PU, Load High Limit PULimit PU

Synchronizer Timeout Alarm On, Alarm OffSync Re-Close Limit Alarm On, Alarm OffHigh Load Limit Alarm On, Alarm OffLow Load Limit Alarm On, Alarm OffHigh Process Limit Alarm On, Alarm OffLow Process Limit Alarm On, Alarm OffHigh Voltage Limit Alarm On, Alarm Off

Page 1-119

g g ,Low Voltage Limit Alarm On, Alarm OffVoltage Range Limit Alarm On, Alarm Off

DSLC

Menu 9 - Discrete Inputs / Outputs

The items in Menu 9 are used to monitor the status of the Discrete Inputs and control the status of the Discrete Outputs of the DSLC.

Page 1-120

DSLC

Menu 9 - Discrete Inputs / OutputsName ValueCheck Switch Open / ClosedPermissive Switch Open / ClosedPermissive Switch Open / ClosedRun Switch Open / ClosedCB Aux Switch Open / ClosedpRaise Voltage Switch Open / ClosedLower Voltage Switch Open / ClosedB L d S it h O / Cl dBase Load Switch Open / ClosedLoad / Unload Switch Open / ClosedRamp Pause Switch Open / ClosedRamp Pause Switch Open / ClosedRaise Load Switch Open / ClosedLower Load Switch Open / ClosedP C t l S it h O / Cl d

Page 1-121

Process Control Switch Open / Closed

DSLC

Menu 9 - Discrete Inputs / OutputsName ValueTest Key * 0 - 100Breaker Close Relay Energized / De-EnergizedB k O R l E i d / D E i dBreaker Open Relay Energized / De-EnergizedVoltage Raise Relay Energized / De-EnergizedVoltage Lower Relay Energized / De-EnergizedHigh Limit Relay Energized / De EnergizedHigh Limit Relay Energized / De-EnergizedLow Limit Relay Energized / De-EnergizedLoad Switch Relay Energized / De-EnergizedAlarm Relay Energized / De-EnergizedAlarm Relay Energized / De EnergizedSync Enable LED On / OffHigh Limit LED On / OffLow Limit LED On / OffCPU OK LED ON

* Note: The value indicates the indicated state of the relay!

Page 1-122

* Setting the Test Key to “49” allows the Discrete Outputs to be toggled for approximately one second, provided all discrete inputs are open and the generator and bus voltage is < 40 VAC.

DSLC

Testing The Discrete Outputs

Make sure when testing the Breaker Close Discrete Output that the generator breaker is Racked or LockedOutput, that the generator breaker is Racked or Lockedout!DANGEROUS CONSEQUENCES CAN OCCUR!

Page 1-123

DANGEROUS CONSEQUENCES CAN OCCUR!

DSLC

Menu 0 - DiagnosticsN Mi V l M V lName Min Value Max ValueDiagnostic Result 49 Any Other Value

Indicates a CPU Problem

ROM Check Sum ? Result of “Check Sum Test”. An error freeTest . An error free control will give the same number each time.

Active DSLC’s 1 16Active DSLC s 1 16

NOTE: Refer to DSLC Manual for the Definition of the remainder of the diagnostic menu items in menu 0.

Page 1-124

DSLC

Menu 0 - DiagnosticsName

Diagnostic ResultROM Check SumA ti DSLC'

Min. Value

1

Max. Value

16Active DSLC'sRetrieve Net StatusTransmit ErrorsTransaction TimeoutsRcv Transaction Full

1Press "." Key/Status Retrieved

000

16

655356553565535Rcv Transaction Full

Lost MessagesMissed MessagesLast Reset Cause

000

Power Up, Ext, Watchdog, Software, Cleared/Unknown

R t

655356553565535

Network StateResets

No Appl, Unconfigured/Appl, Unconfigured/Configured, Off

Line/Soft Offline/Bypass Offline/Configured, On-

Network Error LogNet Interface ErrorsA/D ErrorsNetwork Loop

g ,Line/UnknownSee Manual

00

True/False

6553565535

Page 1-125

Network LoopHardware LoopDI Commands

True/FalseTrue/False

Hardware/Software

DSLC

Section Five

- Digital SynchronizerDigital Synchronizer- Menu 1

Page 1-126

DSLC

Synchronization Introduction

Page 1-127

DSLC

Synchronization Introduction This section describes how generator and

b t hi d h ll ditibus matching occurs and how all conditions are verified by the synchronizer functions.

Synchronization is the matching of the output voltage wave form of one synchronous alternating current electrical generator with the voltage wave form of another alternating current electrical system.

Page 1-128

DSLC

Five Conditions For Synchronizing For the two systems to be synchronized and connected in

parallel, five conditions must be considered:parallel, five conditions must be considered: The number of phases in each system. The direction of rotation of the phases.

Th lt lit d f th t t The voltage amplitudes of the two systems. The frequencies of the two systems. The phase angle of the voltage of the two systems.

The first two conditions are determined when the equipment is specified, installed, and wired.

The synchronizer matches the remaining conditions (voltage The synchronizer matches the remaining conditions (voltage, frequency, and phase) before the paralleling breakers are closed.

Page 1-129

DSLC

Five Conditions For SynchronizationG t

A A

Generator Breaker

B B

C C

Generator UtilityBUS

Generator Breaker

A A

B BGenerator Generator

C C

Page 1-130

The number of phases - must be the same.

DSLC

Five Conditions For Synchronization

A BRotation

A B CA B

A B

A C BCC

Rotation

Direction of rotation must be the samePage 1-131

Direction of rotation - must be the same.

DSLC

Five Conditions for Synchronization

Generator #1Generator #1

Generator #2

V lt lit d h ld b th l l t h dVoltage amplitudes - should be the closely matched.

Page 1-132

DSLC


Bus GeneratorBus Generator

Frequencies - should be closely matchedFrequencies - should be closely matched.

Page 1-133

DSLC


Phase angle - must be closely matchedPhase angle - must be closely matched.

Page 1-134

DSLC

Synchronizer Features Four operating modes.

Off Off Check Permissive Run

Voltage matching. Phase matching synchronizing Phase matching synchronizing. Slip frequency synchronizing. Synch-Check function Synch-Check function. Multiple shot re-closing. Dead bus closing

Page 1-135

Dead bus closing.

DSLC

Synchronizer Operating Modes The synchronizer has four operating modes:

Off Mode: The synchronizer is out of operation Off Mode: The synchronizer is out of operation. Run Mode: Allows for normal synchronizer operation and

breaker closure signal (Lowest Priority). Check Mode: Allows normal synchronizing and voltage

matching, but does not issue a breaker closure signal (Highest Priority)(Highest Priority).

Permissive Mode: Enables the sync-check function for proper synchronization, but does not affect the engine's

d t lt If h f d ltspeed or generator voltage. If phase, frequency, and voltage are within proper limits, a breaker closure command is issued.

Page 1-136

DSLC

Synch-Check Function The Synch-Check function determines when all of the

conditions for proper synchronization are satisfied that theconditions for proper synchronization are satisfied that the breaker closure relay is energized.

To minimize transients, the breaker must be closed when the phase difference between the generator and bus is near zerophase difference between the generator and bus is near zero. Due to relay delay the synchronizer must initiate the breaker closing ahead of the zero phase point.

The DSLC uses slip frequency and the specified breaker delay to predict breaker closure.

When all conditions of voltage and phase are met then the When all conditions of voltage and phase are met, then the breaker closure command is given.

Page 1-137

DSLC

Menu 1 - SynchronizerMin. Max. Default Unit

Sync Gain 0.01 100.0 0.1Sync Stability 0.00 20.0 1.00 SecondsSli F R f 0 00 25 0 05 H tSlip Frequency Ref 0.00 .25 0.05 HertzSlip Window 0.00 1.00 0.05 HertzMax Phase Window 2 20 10 DegreesVoltage Matching Enabled / Disabled EnabledVoltage Matching Enabled / Disabled EnabledVoltage Window 0.0 10.0 1.0 %Dead Bus Closure Enabled / Disabled DisabledBreaker Delay 0.00 2.00 0.10 SecondsBreaker Delay 0.00 2.00 0.10 SecondsCB Close Hold Time 0.00 2.00 0.10 SecondsClose Attempts 1 20 1Re-close Delay 1 1000 20 SecondsSync Re-close Alarm Enabled / Disabled EnabledSync Timeout 0 1000 0 SecondsSync Timeout Alarm Enabled / Disabled DisabledA t R S h i ti E bl d / Di bl d Di bl d

Page 1-138

Auto Re-Synchronization Enabled / Disabled Disabled

DSLC

Synchronizer DynamicsMin. Max. Default Unit

Sync Gain 0.01 100.0 0.1Sync Stability 0 00 20 00 1 00 secSync Stability 0.00 20.00 1.00 sec.

Gain and Stability adjustments to the PI (Proportional, Integral) controller are provided for stable operationcontroller are provided for stable operation.

Sync Gain determines how fast the synchronizer responds to an error in speed or phase. Adjust gain to provide stable control during synchronizing. Lower value to slow response.

Sync Stability compensates for delay in the synchronizer control loop Prevents low frequency hunting and damping (overshoot orloop. Prevents low frequency hunting and damping (overshoot or undershoot) when the synchronizer is enabled or a speed transient occurs during synchronizing.

Page 1-139

DSLC

Phase Matching SynchronizingMin. Max. Default Unit

Slip Frequency Ref 0.00 0.25 0.05 Hertz

The phase matching synchronizing mode corrects the frequency and phase of the generator to lock and match it to the bus frequency and phaseit to the bus frequency and phase.

Phase matching synchronizing is selected when the Slip Frequency Reference set point is set to zero Hz.

The microprocessor derives the difference in phase of the generator and bus "A" phase voltage signals.Th DSLC ill d d bi i l t th d The DSLC will send a speed bias signal to the speed control, increasing or decreasing the engine speed to match that of the bus.

Page 1-140

atc t at o t e bus

DSLC

Slip Frequency SynchronizingMin. Max. Default Unit

Slip Frequency Ref 0.00 0.25 0.05 Hertz

The slip frequency synchronizing function is enabled when the slip frequency set point is set to a non-zero value. Slip Frequency Ref > 0.00

It is often desirable for the oncoming generator speed to b li htl hi h th th b h th tbe slightly higher than the bus when the generator breaker is closed. This assures that power immediately flows out to the system as the DSLC ramps to the "ATflows out to the system as the DSLC ramps to the AT UNLOAD" level.

The synchronizer will control the generator speed at the

Page 1-141

The synchronizer will control the generator speed at the specified slip frequency.

DSLC

Slip WindowMin. Max. Default Unit

Slip Window 0.00 1.00 0.05 Hertz

Slip Window is the maximum allowed deviation in slip (+ or -) from the Slip Frequency Reference when initiating breaker closureinitiating breaker closure.

Generator Freq. = Bus Freq. + Slip Freq. Ref. +/- Slip WindowWindow

Generator Freq. = 60.0 + 0.0 +\- 0.10Generator Freq. = 59.9 to 60.1 Hertzq

Note: To assure breaker closure Slip Window should not be set to zero. Poorer controlling applications (i.e. Lean

Page 1-142

Burn gas engine, Landfill Gas) may require a larger value.

DSLC

Max Phase WindowMin. Max. Default Unit

Max Phase Window 2 20 10 Degrees

Max Phase Window is the maximum allowable electrical phase angle (+ or -) between the bus and generator phase angle when the DSLC initiates a breaker closure command.

-90o

+90o

Page 1-143

180o

DSLC

Voltage MatchingMin. Max. Default Unit

Voltage Matching Enabled/Disabled Enabled The voltages of the generators in parallel must be matched, within a small percentage,

to minimize the reactive power flow in the system. If two synchronous generators of unequal voltages are paralleled, the combined

oltage ill ha e a al e different from the oltage generated b either of thevoltage will have a value different from the voltage generated by either of the generators. The difference in voltages results in reactive currents flowing in the system.

If a synchronous generator is paralleled to the utility and the generator voltage is lower If a synchronous generator is paralleled to the utility and the generator voltage is lower than the bus voltage, reactive power will be drawn from the bus and used to excite the generator to the higher bus voltage. The power flow could motorize the generator.

A phase voltage of the Generator and Bus are sent to the sample and hold circuits of the A/D (analog to digital) converters. The microprocessor then computes the RMS values of the voltages and issues raise/lower commands to the voltage regulator.

The generator voltage is brought to within the specified window above the bus voltage. Thi t th t ti ill fl t f th t ti ibl

Page 1-144

This guarantees that reactive power will flow out of the generator, preventing possible reverse power trips.

DSLC

Voltage windowMin. Max. Default Unit

Voltage Window 0.0 10.0 1.0 %

Voltage Window is the maximum allowable percent the generator voltage may exceed the bus voltage for the DSLC to initiate a breaker closure commandclosure command.

Generator voltage may not be less then the bus voltage.

Page 1-145

DSLC

Dead-Bus ClosureMin. Max. Default Unit

Dead Bus Closure Enabled / Disabled Disabled If Dead Bus Closure is enabled and a dead bus is detected, the

synchronizer will attempt to get an exclusive lock on permission to issue a breaker closure command. A dead bus condition is considered to be less than 40 Volts P T inputs and Generator Breaker openthan 40 Volts P.T. inputs and Generator Breaker open.

This will prevent two or more units from closing their breakers at the same time.

In the event two or more units attempt to get the lock simultaneously the In the event two or more units attempt to get the lock simultaneously, the unit with the lowest assigned network address will receive the lock.

When all units have replied verifying that they also indicate a dead bus and do not hold a lock, the requesting unit will attempt to close its breaker., q g p

The lock is released after issuing a breaker closure command, thus allowing any other unit to get the lock if the breaker fails to close.

Page 1-146

DSLC

Breaker DelayMin. Max. Default Unit

Breaker Delay 0.00 2.00 0.10 Sec.

Breaker Delay specifies the time required for the circuit breaker blades to engage after receiving a breaker closure command. Set to 0 when in Phase Match synchronizing0, when in Phase Match synchronizing.

In Slip Frequency mode, the DSLC will calculate the Breaker Delayin an attempt to have the breaker closed at 12:00.

0o

p

Breaker Delay information is obtained from the breaker manufacture.

-90o

+90o

Page 1-147180

o

DSLC

CB Close Hold TimeMin. Max. Default Unit

CB Close Hold Time 0.00 2.00 0.10 Sec. CB Close Hold Time specifies the maximum elapsed time the

DSLC will maintain the breaker closure relay driver output (energized).

Failure to receive the CB Aux contact signal during this interval results in a failed close attempt.

The breaker closure relay driver returns high (de-energized) when y g ( g )the CB Aux contact signal is received, the specified time expires, the generator is out of the phase window, the generator exceeds the slip window, or the generator voltage exceeds the voltage window (if g g g (voltage matching is enabled).

Speed and voltage bias outputs are maintained for the entire time the breaker close signal is active.

Page 1-148

g

DSLC

Close Attempts / Re-Close AlarmMin. Max. Default Unit

Close Attempts 1 20 1Sync Re close Alarm Enabled / Disabled Enabled

Close Attempts is the number of attempts the DSLC will make to close the breaker

Sync Re-close Alarm Enabled / Disabled Enabled

make to close the breaker. This number should be set to two or more!

The Sync Re-close Alarm (if enabled) will be activated y ( )and the DSLC will enter the auto-off mode if the breaker fails to close in the specified number of tries.Th h i d t b t t th ff d t The synchronizer mode must be set to the off mode to clear the current close count and the alarm.

Set Close Attempts to one if operating in droop

Page 1-149

Set Close Attempts to one if operating in droop.

DSLC

Re-Close DelayMin. Max. Default Unit

Re-Close Delay 1 1000 20 Sec.

Re-Close Delay is the number of seconds between attempts to close the circuit breaker.

If the CB Aux contact remains closed for one reclose If the CB Aux contact remains closed for one reclose delay interval, synchronization is assumed to have occurred.

If the CB Aux contact opens during the reclose delay interval, it is considered a failed closed attempt.Th DSLC t l ill i i th l t d ti The DSLC control will remain in the selected operating mode (Run, Check or Permissive) during the Reclose Delay interval.

Page 1-150

Delay interval.

DSLC

Synch Timeout / Timeout AlarmMin. Max. Default Unit

Sync Timeout 0 1000 0 Sec.Sync Timeout Alarm Enabled/Disabled Disabled Sync Timeout is the interval over which the DSLC will attempt to

get synchronization.

Sync Timeout Alarm Enabled/Disabled Disabled

get synchronization. A value of 0 seconds disables the Sync Timeout function. The interval begins when generator voltage is detected (generator A

phase voltage above 40 V L L) and either the Run or Permissivephase voltage above 40 V L-L) and either the Run or Permissive mode select input is activated.

Failure to get a CB Aux contact closure within the specified time will result in a Synch Timeout Alarmresult in a Synch Timeout Alarm.

The DSLC synchronizer mode must be set to Off mode to clear the interval timer and alarm.

Page 1-151

DSLC

Auto Re-SynchronizeMin. Max. Default Unit

Auto Re-Synchronize Enabled/Disabled Disabled Auto Re-Synchronize enables or disables the synchronizer

function after achieving Synchronization. (Synchronization is assumed to have been achieved if one Reclose Delay time interval ypasses with the CB Aux contact closed).

If enabled, the DSLC will automatically restart in the selected synchronizer operating mode when synchronization is lost assynchronizer operating mode when synchronization is lost, as indicated when the CB Aux contact opens.

On restart, the Sync Time-out timer and Close Attempts count are reset to their specified values.

If disabled, the DSLC synchronizer mode must be set to the Off mode and then back to the desired operating mode to resume

Page 1-152

mode and then back to the desired operating mode to resume operation.

DSLC

Synchronizer Timing Diagrams

Page 1-153

DSLC

Synchronizer Timing Diagrams Scenario #1 - Successful Synchronization -

B k Cl d OBreaker Closes and Opens This scenario shows the timing diagram of a

f l t h i ti (b ksuccessful generator synchronization (breaker close) and Breaker Open.

Page 1-154

DSLC


Page 1-155

DSLC

Synchronizer Timing Diagrams Scenario #2 - Unsuccessful Synchronization -

N B k ClNo Breaker Closure. This scenario shows the timing diagram of an

f l t h i ti (unsuccessful generator synchronization (no breaker closure).

Page 1-156

DSLC


Page 1-157

DSLC

Synchronizer Timing Diagrams Scenario #3 - Successful Synchronization -

M t B k ClMomentary Breaker Closure. This scenario shows the timing diagram of a

f l t h i ti ( tsuccessful generator synchronization (momentary breaker closure).

Page 1-158

DSLC

Section Six

- Load ControlLoad Control- Menu 2

Page 1-159

DSLC

Menu 2 - Load ControlMin. Max. Default Unit

Load Control Gain 0.0001 100.0 0.5001Load Stability 0.00 20.00 1.00 SecondsL d D i ti 0 00 20 00 0 00 S dLoad Derivative 0.00 20.00 0.00 SecondsLoad Control Mode Integrating/Proportional ProportionalLoad Control Filter 0.1 10.0 1.0 HertzLoadshare Gain 0 10 2 00 0 72Loadshare Gain 0.10 2.00 0.72Frequency Trimmer Enabled/Disabled DisabledRated Load 0 30000 1000 kWBase Load 0 30000 1000 kWBase Load 0 30000 1000 kWUnload Trip 0 30000 0 kWLoad Droop 0.0 100 5.0 %Load Time 1 7200 20 SecondsUnload Time 1 7200 20 SecondsRaise Load Rate 0.01 100.00 1.00 %/SecLower Load Rate 0.01 100.00 1.00 %/Sec4mA Remote Load 0 30000 0 W kW MW

Page 1-160

4mA Remote Load 0 30000 0 W, kW, MW20mA Remote Load 0 30000 1000 W, kW, MW

DSLC

Menu 2 - Load Control (cont.)Min. Max. Default Unit

High Limit PU 0 30000 1000 W, kW, MWHigh Limit DO 0 30000 900 W, kW, MWHi h Li it Al E bl d/Di bl d Di bl dHigh Limit Alarm Enabled/Disabled DisabledLow Limit PU 0 30000 10 W, kW, MWLow Limit DO 0 30000 10 W, kW, MWLow Limit Alarm Enabled/Disabled DisabledLow Limit Alarm Enabled/Disabled DisabledLoad Limit Switches Enabled/Disabled DisabledLoad Switch PU 0 30000 300 W, kW, MWLoad Switch DO 0 30000 200 W, kW, MWLoad Switch DO 0 30000 200 W, kW, MWReverse Power Trip Enabled/Disabled DisabledInstant Reverse Power -50.0 -1.0 -10.0 % LoadRev Pwr Time Delay 0.1 20.0 20.0 SecondsReverse Pwr Level -50.0 -1.0 -1.0 % Load

Page 1-161

DSLC

Load Control Dynamics

Load FeedbackLoadReference

Speed BiasOutputPID

GeneratorLoad

Page 1-162

DSLC

Load Control DynamicsMin. Max. Default Unit

Load Control Gain 0.0001 100.0 0.500

Load Control Gain determines how fast the load control responds to a load error and to provide stable load control.

For integrating load control mode, use 0.5 as the initial l d t l iload control gain.

In proportional load control mode, use 0.5001 as the initial setting Use 2 0 for ADEM controlinitial setting. Use 2.0 for ADEM control.

In proportional load control mode, the load control gain is the gain setting used in base load mode and during

Page 1-163

is the gain setting used in base load mode and during load control ramp time.

DSLC


Load Stability 0.00 20.00 1.00 Seconds

Load Stability compensates for lags in the load control loop.

It prevents slow hunting and controls damping (overshoot or undershoot) after a load disturbance.* Thi dj t t i i ff t l i th i t ti * This adjustment is in effect only in the integrating load control mode.

Page 1-164

DSLC


Load Derivative 0.00 20.00 0.00 Seconds

Load Derivative adjusts the rate of change in speed bias output during a load transient.

* This adjustment is in effect only in the integrating load control mode.

Page 1-165

DSLC

Load Control ModeMin. Max. Default Unit

Load Control Mode Int. / Prop. Proportional

Proportional Load Control - provides smooth, stable control of load for operation in parallel or base-loaded with frequency-stable systemssystems.

In Proportional Load Control Mode, and base-loaded to the utility grid, a shift in bus frequency will result in a shift in load.

This adjustment will not affect units in Parallel (Isochronous Load Sharing Mode).

ProportionalFeedback

LoadReference

Speed Bias

Page 1-166Generator

Load

Output

DSLC

Load Control ModeMin. Max. Default Unit

Load Control Mode Int. / Prop. Proportional

Integral Load Control - provides accurate load control when in parallel or base-loaded with a bus where the frequency may vary.

An integrating load control will control the true KW set-point of the An integrating load control will control the true KW set point of the unit when in parallel or base-loaded to the utility grid.

Proportional, Integraland DerivativeFeedback

LoadReference

Speed BiasOutput

Page 1-167

GeneratorLoad

DSLC

Load Control FilterMin. Max. Default Unit

Load Control Filter 0.1 10.0 1.0 Hertz Load Control Filter - adjusts the bandwidth of the filter on the load controller input. Higher frequency settings than default result in faster control response, but also

more response to system noise.L f tti lt i l t l d l t Lower frequency settings result in slower control response and less response to noise.

In power systems experiencing rapid fluctuations in power (such as digester gas fuel systems) reducing the Load Control Filter set point will reduce control sensitivity tosystems), reducing the Load Control Filter set point will reduce control sensitivity to the fluctuations, but more stable, performance can be obtained.

0

dB

-20

dB

Page 1-168Filter Cutoff10 Hz0

-40

DSLC

Loadshare GainMin. Max. Default Unit

Loadshare Gain 0.1 2.0 0.72

Loadshare Gain - adjusts ratio of speed bias output voltage to load error in isochronous load sharing control mode.

Do not change from the specified default value unless necessary to Do not change from the specified default value unless necessary to get load sharing system stability.

If a unit picks up load too quickly compared to the system, as may occur on a small, fast prime mover operating with a large slower one, reduce the gain setting.

Conversely, if the unit is too slow, increase the gain. Conversely, if the unit is too slow, increase the gain. If the initial value of 0.72 is unstable, decrease the value towards

0.2. The ADEM control’s set point is normally 0.2.* Thi dj t t i t d l it th t i

Page 1-169

* This adjustment is tuned only on units that are running isochronous load sharing (parallel) on an isolated bus.

DSLC

Frequency TrimmerMin. Max. Default Unit

Frequency Trimmer Enabled / Disabled Disabled Frequency Trimmer - enables or disables the Isochronous load sharing

mode speed trim function. When disabled, bus frequency in a load sharing system will be determined q y g y

by the average of the speed settings on all units. When enabled, the DSLC control compensates slowly for small speed

setting errors between generator sets to maintain the specified bussetting errors between generator sets to maintain the specified bus frequency set in Menu 5, step 6, within 0.1%.

Page 1-170

DSLC

Load Set PointsMin. Max. Default Unit

Rated Load 0 30000 1000 kWBase Load 0 30000 1000 kWBase Load 0 30000 1000 kWUnload Trip 0 30000 0 kW

Rated Load - Is the 100 % load Example loads of a Rated Load - Is the 100 % load rating of the generator.

Base Load - Is the default base

Example loads of a 1 MW Generator

1000 kW Rated LoadBase Loadload operating mode reference.

Unload Trip - is the kW load level where the breaker open

950 kW Base Load

level where the breaker open command is given when the generator is automatically

Page 1-171

unloaded by opening the Load/Unload switch. 50 kW Unload Trip

DSLC

Load DroopMin. Max. Default Unit

Load Droop 0.0 100 5.0 %

Load Droop - is the load droop operation setting when load is applied to the generator and the CB Aux contact input to the DSLC control is opencontrol is open.

The Load Droop setting is only approximate due to dependence of the gain on the speed control's bias input.

3 %

Page 1-172

DSLC

Load Ramp TimesMin. Max. Default Unit

Load Time 1 7200 20 Sec.Unload Time 1 7200 20 SecUnload Time 1 7200 20 Sec. Raise Load Rate 0.01 100.00 1.00 %/Sec.Lower Load Rate 0.01 100.00 1.00 %/Sec. Load Time and Unload Times - are used when ramping from one load mode to

another. Ramp times are calculated between the Unload Trip point and the Base Load reference setting.Load reference setting.

Raise and Lower Load Rates - are used when the Load Raise / Lower contact inputs are used. Also used when the Remote Load Setting is used.

Page 1-173

DSLC

Bumpless Load Transfer

Unit Unit

Total Loadoa

d

#1 Unit #2

IsochronousLoad Sharing

Lo

Unit #2

Unit #1Breaker Open Command

UnloadTrip

Level

TimeUnit #2BreakerCloses

LoadContactCloses

Unit #1BreakerOpens

Unload #1Initiated

Level

Page 1-174

Unit #1 unloads at the #2 Load Time setting. Unit #2 loads at the #1 Unload Time setting.

DSLC

Remote LoadMin. Max. Default Unit

4 mA Remote Load 0 30000 0 kW20 mA Remote Load 0 30000 1000 kW20 mA Remote Load 0 30000 1000 kW

Page 1-175

DSLC

High Limit Load SwitchingMin. Max. Default Unit

High Limit PU 0 30000 1000 W,kW,MWHigh Limit DO 0 30000 900 W kW MWHigh Limit DO 0 30000 900 W,kW,MWHigh Limit Alarm Enabled/Disabled Disabled High Limit Alarm - Specifies if the High Limit Alarm will activate (de-energize) the High Limit Alarm Specifies if the High Limit Alarm will activate (de energize) the

alarm driver, terminal 28. The High Limit PU point acts as a limiter for the load while in the Base Load or

Process Control modes and will remain active regardless if the alarm is enabled or

EnergizedExample:High Limit

gnot.

De-energized

Example: PU = 1,000 KW DO = 850 KW

High LimitDiscrete Output

Page 1-176

De-energized1,000 KW850

DSLC

Low Limit Load SwitchingMin. Max. Default Unit

Low Limit PU 0 30000 10 W,kW,MWLow Limit DO 0 30000 10 W kW MWLow Limit DO 0 30000 10 W,kW,MWLow Limit Alarm Enabled/Disabled Disabled Low Limit Alarm - Specifies if the Low Limit Alarm will activate (de-energize) the Low Limit Alarm Specifies if the Low Limit Alarm will activate (de energize) the

alarm driver, terminal 28. The Low Limit PU point acts as a limiter for the load while in the Base Load or

Process Control modes and will remain active regardless if the alarm is enabled or gnot.

EnergizedExample:Low Limit

De-energized

p PU = 50 KW DO = 75 KW

Low LimitDiscrete Output

Page 1-177

g50 75 KW

DSLC

Load Limit SwitchingMin. Max. Default Unit

Load Limit Switches Enabled/Disabled DisabledLoad Limit PU -30000 30000 300 W kW MWLoad Limit PU -30000 30000 300 W,kW,MWLoad Limit DO -30000 30000 200 W,kW,MW Load Limit Switches - Specifies if the High or Low Limit outputs, terminal 26 and 27 Load Limit Switches Specifies if the High or Low Limit outputs, terminal 26 and 27

will activate on high or low limit alarm. The load limit switches will activate the Load Switch discrete output, terminal 25, if the

Reverse Power Trip is disabled.p

EnergizedExample:Load Switch

De-energized

p PU = 750 KW DO = 500 KW

Load SwitchDiscrete Output

Page 1-178

g500 750 KW

DSLC

Reverse Power RelayMin. Max. Default Unit

Reverse Power Trip Enabled/Disabled DisabledInstant Reverse Power -50 0 -1 0 -10 % LoadInstant Reverse Power -50.0 -1.0 -10 % LoadRev Pwr Time Delay 0.1 20.0 20.0 SecondsReverse Power Level -50.0 -1.0 -1.0 % Load Time to Trip = Reverse Pwr Level * Rev Pwr Time Delay

Actual LoadSECONDS

D TIME (seconds)

0 10 20 30 40

EXAMPLE:

SECONDS

% L

OA

D TIME (seconds)

REVERSEPOWER

TRIP

Reverse Power TripEnabledInstant Reverse Power-10%Rev Pwr Time Delay20 sec

Page 1-179

TRIP Reverse Power Level-1%

DSLC

Section Seven

- VAR / Power Factor ControlVAR / Power Factor Control- Menu 4

Page 1-180

DSLC

Menu 4 - VAR / PF ControlMin. Max. Default Unit

VAR/PF Control Mode Disabled/ DisabledPF Control/VAR ControlVAR Control

VAR/PF Gain 0.01 22.0 1.00VAR/PF Stability 0.00 20.0 2.50 SecondsRated KVAR’s 0 30000(gen.) 100 kVARKVAR R f 30000( b ) 30000( ) 20 ( ) kVARKVAR Reference 30000(abs.) 30000(gen.) 20 (gen.) kVARPF Reference 0.00 lag 0.00 lead 0.8 lagPF Deadband 0.000 1.000 0.025Voltage Reference 50 300*PT ratio 70*PT ratio V (L-L,L-N)g ( , )Voltage Trim Enabled/Disabled DisabledVoltage Regulation 1.0 10.0 2.0 %Voltage Low Limit 50 300*PT ratio 60*PT ratio V (L-L,L-N)Voltage Low Alarm Enabled/Disabled DisabledVoltage Low Alarm Enabled/Disabled DisabledVoltage High Limit 50 300*PT ratio 80*PT ratio V (L-L,L-N)Voltage High Alarm Enabled/Disabled DisabledVoltage Switches Enabled/Disabled EnsabledV lt R Al E bl d/Di bl d Di bl d

Page 1-181

Voltage Range Alarm Enabled/Disabled DisabledVoltage Ramp Time 1 600 60 Seconds

DSLC

Power Factor ControlMin. Max. Default Unit

VAR/PF Control Mode Disabled / DisabledPF Control /PF Control / VAR Control

Power Factor Control adjusts the generator voltage to maintain a j g gconstant power factor angle throughout the KW operating range.

A set-point, PF Reference, is provided to set the desired power factor referencereference.

Voltage Raise and Lower input contacts (terminals 48, 49) must be closed simultaneously to activate selected mode of control.

If on an isolated bus, Power Factor Sharing will automatically become the selected mode of control.

Page 1-182

DSLC

VAR ControlMin. Max. Default Unit

VAR/PF Control Mode Disabled / DisabledPF Control /PF Control / VAR Control

VAR (Volt Amp Reactive) Control adjusts the generator voltage to ( p ) j g gmaintain a constant reactive power (KVAR) load on the generator throughout the KW operating range. This assures sufficient excitation of the generator field under all load conditionsof the generator field under all load conditions.

A set point, KVAR Reference, is provided to set the desired VAR's. Voltage Raise and Lower input contacts (terminals 48, 49) must be

closed simultaneously to activate selected mode of control. If on an isolated bus, Power Factor Sharing will automatically become

the selected mode of control

Page 1-183

the selected mode of control.

DSLC

Power Factor SharingMin. Max. Default Unit

VAR/PF Control Mode Disabled / DisabledPF Control /

When either VAR Control or Power Factor Control is selected, and

PF Control / VAR Control

the DSLC is operating in isochronous load sharing mode, Power Factor Sharing is automatically selected.

Power Factor Sharing adjusts the voltage regulators so that all Power Factor Sharing adjusts the voltage regulators so that all generators carry the same reactive load by balancing the power factor on all units.V lt R f id t i t t d fi th t ti Voltage Reference, provides a set point to define the system operating voltage.

Voltage Raise and Lower input contacts (terminals 48, 49) must be

Page 1-184

g p ( )closed simultaneously to activate selected mode of control.

DSLC

VAR/PF Control DynamicsMin. Max. Default Unit

VAR/PF Gain 0.01 22.0 1.00VAR/PF Stability 0 00 20 0 2 50 SecondsVAR/PF Stability 0.00 20.0 2.50 Seconds Gain and Stability adjustments to the VAR/PF PI

(Proportional, Integral) controller are provided for stable(Proportional, Integral) controller are provided for stable control of VAR or PF.

VAR/PF Gain - Determines how fast the VAR/PF control responds to an error in VAR or PF. Adjust gain to provide stable control during VAR or PF Control Mode. Lower value to slow response.value to slow response.

VAR/PF Stability - Compensates for delay in the reactive power control loop. Prevents low frequency hunting and

Page 1-185

damping.

DSLC

VAR RatingsMin. Max. Default Unit

Rated kVARs 0 30000(gen) 100 kVARKVAR Reference 30000(abs) 30000(gen) 20(gen) kVARKVAR Reference 30000(abs) 30000(gen) 20(gen) kVAR Rated KVAR is the generator manufacture's KVAR rating. If unknown

set to 60% of the KVA rating. (KVAR load at .8 lagging power factor at g ( gg g prated KVA.)

KVAR Reference - specifies the desired KVAR load at which to control in the VAR control mode Active when the Base Load input iscontrol in the VAR control mode. Active when the Base Load input is closed.

Power Triangle KVAKVAR

Page 1-186KW

DSLC

PF RatingsMin. Max. Default Unit

PF Reference 0.00 lag 0.00 lead 0.8 lagPF Deadband 0 000 1 000 0 025PF Deadband 0.000 1.000 0.025 PF Reference specifies the desired power factor at which to control in

the Power Factor Control Mode. Active when the Base Load input is pclosed.

PF Deadband - specifies an error window about the PF or VAR Ref., inside of which the VAR/PF control will not adjust the voltage regulatorinside of which the VAR/PF control will not adjust the voltage regulator. Deadband is especially useful in systems using a MOP to adjust voltage.

1.0 .9 .8.98 8 .7.6

.5

.8

.7

.6.5

Laggin

g Leading

Page 1-187Power Factor

DSLC

Voltage TrimmingMin. Max. Default Unit

Voltage Reference 50.0 300*PT ratio 70*PT ratio V (L-L,L-N)Voltage Trim Enabled / Disabled DisabledgVoltage Regulation 1.0 10.0 2.0 %

Voltage Reference specifies the bus voltage reference for VAR/PF sharing h i i h l d h i d d d i d b h PT R i dwhen in isochronous load sharing mode, and determined by the PT Ratio and

Voltage Display in Menu 5. Voltage Trim when disabled, the bus voltage in an isochronous load sharing

system will be determined by the average of the voltage settings of all units. Voltage Trim when enabled is active in “Parallel Mode” only. When enabled

and in power factor sharing, the DSLC control will adjust the bus voltage to within the voltage regulation percentage before correcting for a power factor error.

Voltage Regulation determines how close the bus voltage will be kept to the

Page 1-188

voltage reference when the voltage trim function is enabled and the operating mode is isochronous power factor sharing.

DSLC

Voltage TrimmingMin. Max. Default Unit

Voltage Reference 50.0 300*PT ratio 70*PT ratio V (L-L,L-N)Voltage Trim Enabled / Disabled DisabledgVoltage Regulation 1.0 10.0 2.0 %

Voltage Trim DisabledVoltage Trim Disabled

Voltage Trim Enabledo tage ab ed

Page 1-189

DSLC

Voltage Trim Function During Power Factor Sharing there are two

b lt i i t i dways bus voltage is maintained: When a power factor error exists, only the unit

hi h ill th b lt i thwhich will move the bus voltage in the proper direction will attempt to change the power factor.

When Voltage Trim is enabled the units will first When Voltage Trim is enabled, the units will first trim their respective voltages to be within the user tunable window. Then adjust to correct for any PFtunable window. Then adjust to correct for any PF error.

Page 1-190

DSLC

DSLC VAR/PF O ti iDSLC VAR/PF Operation in Isochronous Load Sharing ModeIsochronous Load Sharing Mode

Example: VOLTAGE DISPLAY = Volts L-L VOLTAGE REFERENCE = 4160 V VOLTAGE TRIM = ENABLED VOLTAGE REGULATION = 1% VOLTAGE REGULATION = 1% PF DEADBAND = 0.005

"A"

4181 (0.5% above the voltage reference, fixed)

4202 (1% above the voltage reference, adjustable in menu 4)

"C"

"B"

A

4139 (0.5% below the voltage reference, fixed)

4160 (Voltage reference as set in menu 4)

"E"

"D"

C

Page 1-191

4118 (1% below the voltage reference, adjustable in menu 4)E

"F"

DSLC

DSLC VAR/PF O ti iDSLC VAR/PF Operation in Isochronous Load Sharing Mode

“A” - If the bus voltage is above the VOLTAGE REGULATION window ( > 4202 V) the DSLC will immediately decrease the excitation until the bus voltage is within the VOLTAGE REGULATION window (4118 V < BUS VOLTAGE < 4202 V) You can

Isochronous Load Sharing ModeVOLTAGE REGULATION window (4118 V < BUS VOLTAGE < 4202 V). You can expect the bus voltage to be within this window if the VOLTAGE TRIM is set to enabled.

“B” - If the bus is within the VOLTAGE REGULATION window but above the fixed 0.5% window (4181 < bus voltage < 4202) the DSLC will decrease the excitation if a power factor error exists and the DSLC needs to lower voltage to correct for the power factor error. The DSLC will see a power factor error if the error is greater than the PF DEADBAND. For example if the system power factor is 0.94 lagging and the generator power factor is less lagging than the system power factor say 0.99 lagging the DSLC will not increase the excitation to correct for the power factor 0 99 agg g t e S C ot c ease t e e c tat o to co ect o t e po e actoerror because this would have the tendency to increase the bus voltage. If the generator power factor is more lagging than the system power factor say 0.89 lagging the DSLC will decrease the excitation to correct for the power factor error which has a tendency to lower the bus voltage closer to the voltage reference. If the bus voltage is in this window and no power factor error exists the DSLC will notthe bus voltage is in this window and no power factor error exists the DSLC will not adjust the bus voltage. The voltage can remain in this window for extended periods of time if the PF DEADBAND is large or if the system power factor is constant.

“C” - If the bus voltage is within the fixed 0.5% window (4139 < bus voltage < 4181). The DSLC will always correct for the power factor by either increasing or

Page 1-192

decreasing the excitation depending on the error.

DSLC

DSLC VAR/PF Operation in Isochronous Load Sharing Mode

“D” - If the bus voltage is within the fixed 0.5% window (4139 < bus voltage < 4181). The DSLC will always correct for the power factor by either increasing or decreasing the excitation depending on the error.

Isochronous Load Sharing Modeg p g

“E” - If the bus is within the VOLTAGE REGULATION window but below the fixed 0.5% window (4118 < bus voltage < 4139) the DSLC will increase the excitation if a power factor error exists and the DSLC needs to increase voltage to correct for the power factor error. The DSLC will see a power factor error if th i t th th PF DEADBAND F l if th tthe error is greater than the PF DEADBAND. For example if the system power factor is 0.94 lagging and the generator power factor is more lagging than the system power factor say 0.89 lagging the DSLC will not decrease the excitation to correct for the power factor error because this would have the tendency to decrease the bus voltage. If the generator power factor is less lagging than the system power factor say 0.94 lagging the DSLC will increase the excitation to correct for the power factor error which has a tendency to raise the bus voltage closer to the voltage reference. If the bus voltage is in this window and no power factor error exists the DSLC will not adjust the bus voltage. The voltage can remain in this window for extended periods of time if the PF DEADBAND iscan remain in this window for extended periods of time if the PF DEADBAND is large and/or if the system power factor is constant.

“F” - If the bus voltage is below the VOLTAGE REGULATION window ( < 4118 V) the DSLC will immediately increase the excitation until the bus voltage is within the VOLTAGE REGULATION window (4118 V < BUS VOLTAGE < 4202 V).

Page 1-193

You can expect the bus voltage to be within this window if the VOLTAGE TRIM is set to enabled.

DSLC

V lt Li it d AlVoltage Limits and AlarmsMin. Max. Default Unit

Voltage High Limit 50 300*PT ratio 80*PT ratio V (L-L,L-N)Voltage Low Limit 50 300*PT ratio 60*PT ratio V (L-L,L-N)Voltage High & Low Alarm Enabled/Disabled Disabled

Voltage High Limit - Specifies the voltage high limit alarm trip point and the

Example of a Voltage Limitsvoltage high limit alarm trip point, and the

raise limit for the synchronizer and manual raise voltage functions.

Voltage High and Low Alarms -

Voltage Limits

528 Voltage High LimitVoltage High and Low AlarmsSpecifies if the voltage high and low limit alarm trip points activate the alarm driver, terminal 28. Voltage Reference

Voltage Low Limit - Specifies the voltage low limit alarm trip point, and the lower limit for the synchronizer and

480 Voltage Reference

Page 1-194

manual lower voltage functions.

432 Voltage Low Limit

DSLC

Voltage Control ConfigurationsMin. Max. Default Unit

Voltage Switches Enabled/Disabled EnabledVoltage Range Alarm Enabled/Disabled Disabled

Voltage Switches - specifies if the High or Low Limit discrete outputs, t i l 26 d 27 ill ti t hi h l li it lt l

Voltage Ramp Time 1 600 60 Seconds

terminals 26 and 27, will activate on high or low limit voltage alarm. Voltage Range Alarm - enables or disables the voltage regulator bias

output limit alarm. This alarm activates if the limit of the voltage bias p goutput is exceeded (above 100% or below -100% voltage bias output).

Voltage Ramp Time - specifies the time required to ramp the voltage bias output over its full range Also adjusts the rate of change in voltagebias output over its full range. Also adjusts the rate of change in voltage matching function. Normally set to about 200 Seconds.

Page 1-195

DSLC

Section Eight

- Process ControlProcess Control- Menu 3

Page 1-196

DSLC

Process Control Introduction

FeedbackProcessReference

Speed BiasOutputPID

ProcessParameter

Page 1-197

DSLC

Process Control Introduction The process control function of the DSLC control will control any

process where the controlled parameter is determined by theprocess where the controlled parameter is determined by the generator load, and the controlled parameter can be monitored as a 4–20 mA or 1–5 Vdc input signal.

The control compares the input signal to the process set point The control compares the input signal to the process set point, or the external load reference signal if it is used, and adjusts the generator load to maintain the desired set point.

A cascade Proportional Integral Derivative (PID) process controller is provided for co-generation, import/export control, temperature control, pressure maintenance, or other application. p , p , pp

Page 1-198

DSLC

Examples of DSLC’sExamples of DSLC’s Controllable ProcessesControllable Processes

Utility Gas Gen Sets

Import or Export with the Utility Landfill Gas Pressure Control

Generatory

LoadUtility

UtilityLoadLoad

Utility

Pond Level ControlSteam Turbine Inlet or Exhaust Pressure Control

Page 1-199

DSLC

Examples of DSLC’sExamples of DSLC’s Controllable ProcessesControllable Processes

Electrical import power from a utility. Electrical export power to a utility. Steam turbine inlet pressure Steam turbine inlet pressure. Steam turbine exhaust pressure. Landfill gas pressure.

Digester gas pressure Digester gas pressure. Pond level (hydro-applications).

Page 1-200

( y pp )

DSLC

Process Master / Slave

UtilityGenerator

yLoad

UtilityGeneratorGenerator


W DOODWAR


W DOODWAR


W DOODWAR

Master Slave Slave

A

B

C

42

41

40

39

38

37

36

35

34

33

32

31

30

29HI IMP

+/- 3V

VOLTAGE BIASOUTPUT

+/- 9V

SPEED BIASOUTPUT


(4-20mA, 1-5 VDC)

PROCESSSIGNAL INPUT

(4-20mA, 1-5 VDC)

NETWORK

TERMINATION JPR

LO IMP

COM

COM

REMOVE JPR FOR VDC

REMOVE JPR FOR VDC

12

11

10

9

8

7

6

5

4

3

2

1 -

-

-

-

+

+

+

+

240

240

240

240

120

120

120

120

N





W DOODWARR

A

B

C

42

41

40

39

38

37

36

35

34

33

32

31

30

29HI IMP

+/- 3V

VOLTAGE BIASOUTPUT

+/- 9V

SPEED BIASOUTPUT


(4-20mA, 1-5 VDC)

PROCESSSIGNAL INPUT

(4-20mA, 1-5 VDC)

NETWORK

TERMINATION JPR

LO IMP

COM

COM

REMOVE JPR FOR VDC

REMOVE JPR FOR VDC

12

11

10

9

8

7

6

5

4

3

2

1 -

-

-

-

+

+

+

+

240

240

240

240

120

120

120

120

N





W DOODWARR

A

B

C

42

41

40

39

38

37

36

35

34

33

32

31

30

29HI IMP

+/- 3V

VOLTAGE BIASOUTPUT

+/- 9V

SPEED BIASOUTPUT


(4-20mA, 1-5 VDC)

PROCESSSIGNAL INPUT

(4-20mA, 1-5 VDC)

NETWORK

TERMINATION JPR

LO IMP

COM

COM

REMOVE JPR FOR VDC

REMOVE JPR FOR VDC

12

11

10

9

8

7

6

5

4

3

2

1 -

-

-

-

+

+

+

+

240

240

240

240

120

120

120

120

N





W DOODWARR

ProcessSignalInput

LOAD LOWERLOW LIMIT











CB AUX+

RUN-PERMISSIVE

CHECK

A

B


54

53

52

51

50

49

48

47

46

45

44

43

26

27

25

24

23

22

21

20

19

18

17

16

15

14


(RS-422)


LOAD LOWERLOW LIMIT











CB AUX+

RUN-PERMISSIVE

CHECK

A

B


54

53

52

51

50

49

48

47

46

45

44

43

26

27

25

24

23

22

21

20

19

18

17

16

15

14


(RS-422)


LOAD LOWERLOW LIMIT











CB AUX+

RUN-PERMISSIVE

CHECK

A

B


54

53

52

51

50

49

48

47

46

45

44

43

26

27

25

24

23

22

21

20

19

18

17

16

15

14


(RS-422)


Page 1-201


SYNCENABLE

LOWLIMIT

HIGHLIMIT

CPUOK


SYNCENABLE

LOWLIMIT

HIGHLIMIT

CPUOK


SYNCENABLE

LOWLIMIT

HIGHLIMIT

CPUOK

5528

LON

DSLC

Process Slave / Process Master One unit should be selected as "Process

Master". Activate both the "Process Control"Master . Activate both the Process Control and the "Base Load" inputs.

Other units have active "Process Control" input but inactive "Base Load" inputs.

The Master will adjust the load on all the engines in order to maintain the 4-20 mA signal it sees.

Page 1-202

DSLC

Menu 3 - Process ControlMin. Max. Default Unit

Process Control Gain 0.0001 100.0000 .1000Process Stability 0.00 20.0 1.00 SecondsP D i ti 0 00 20 0 0 00 S dProcess Derivative 0.00 20.0 0.00 SecondsProcess Deadband 0.00 20.0 0.10 mAProcess Droop 0.0 100.0 0.0 %Process Filter 0 1 5 0 1 0 HertzProcess Filter 0.1 5.0 1.0 HertzProcess Reference 0.0 20.0 12.0 mARaise Reference Rate 0.01 20.00 0.10 mA/secLower Reference Rate 0.01 20.00 0.10 mA/secLower Reference Rate 0.01 20.00 0.10 mA/secHigh Limit PU 0.0 25.0 15.0 mAHigh Limit DO 0.0 25.0 15.0 mAHigh Limit Alarm Enabled / Disabled DisabledLow Limit PU 0.0 25.0 10.0 mAHigh Limit DO 0.0 25.0 10.0 mALow Limit Alarm Enabled / Disabled DisabledProcess Switches Enabled / Disabled Disabled

Page 1-203

Process Switches Enabled / Disabled Disabled

DSLC

Process Control DynamicsMin. Max. Default Unit

Process Control Gain 0.0001 100.0000 0.1000Process Stability 0 00 20 0 1 00 SecondsProcess Stability 0.00 20.0 1.00 SecondsProcess Derivative 0.00 20.0 0.00 Seconds Process Control Gain - Determines how fast the process control Process Control Gain - Determines how fast the process control

responds to an error between the process variable and reference. Adjust gain to provide stable control of the process.P S bili C f d l i h l l Process Stability - Compensates for delay in the process control loop. Prevents low frequency hunting and damping after a process disturbance occurs.

Process Derivative - Adjusts the rate of change in speed bias output during a process level transient.

Page 1-204

DSLC

P C t l S ttiProcess Control SettingsMin. Max. Default Unit

Process Reference 0.0 20.0 12.0 mAProcess Deadband 0 00 20 0 0 10 mA

Process Reference specifies the desired level at which to control the process Active when the Process Control

Process Deadband 0.00 20.0 0.10 mA

to control the process. Active when the Process Control input, terminal 55, is closed.

Process Deadband - specifies an error window within Process Deadband specifies an error window within which the process control integrator is not updated. Deadband is especially useful in systems of high noise processes. Set to 0.0 mA for normal, non-deadband control.

Page 1-205

DSLC

Process DroopMin. Max. Default Unit

Process Droop 0.0 100.0 0.0 %

Process Droop - specifies the desired level at which to control the process. Active when the Process Control input terminal 55 is closedinput, terminal 55, is closed.

3 %3 %

Page 1-206

DSLC

Process Control FilterMin. Max. Default Unit

Process Filter 0.1 5.0 1.0 Hz

Process Filter - Adjusts the bandwidth of the filter on the process input.

0

Higher frequency settings result in faster control response, but also more response to process noise.

-20

0

dB

-40

20

Page 1-207Filter Cutoff 5 Hz0

DSLC

Process Ramp TimesMin. Max. Default Unit

Raise Reference Rate 0.01 20.0 0.10 mA/secLower Reference Rate 0 01 20 0 0 10 mA/sec

Raise and Lower Reference Rates - the rate at which the process reference is increased or decreased when

Lower Reference Rate 0.01 20.0 0.10 mA/sec

20

the process reference is increased or decreased when the raise or lower command is activated.

20

4

Page 1-208

DSLC

Process High Limit SwitchingMin. Max. Default Unit

High Limit PU 0.0 25.0 15.0 mAHigh Limit DO 0 0 25 0 15 0 mA

High Limit Alarm - Specifies if the Process High Limit Alarm will

High Limit DO 0.0 25.0 15.0 mAHigh Limit Alarm Enabled / Disabled Disabled

g p gactivate (de-energize) the alarm driver, terminal 28.

Note: The High Limit PU point acts as a limiter for maximum process reference setting

EnergizedE lHi h Li it

reference setting.

D i d

Example: PU = 18 mA DO = 15 mA

High LimitDiscrete Output

Page 1-209

De-energized18 mA15

DSLC

Process Low Limit SwitchingMin. Max. Default Unit

Low Limit PU 0.0 25.0 10.0 mALow Limit DO 0 0 25 0 10 0 mA

Low Limit Alarm - Specifies if the Process Low Limit Alarm will

Low Limit DO 0.0 25.0 10.0 mALow Limit Alarm Enabled / Disabled Disabled

pactivate (de-energize) the alarm driver, terminal 28.

Note: The Low Limit PU point acts as a limiter for minimum process reference settingreference setting.

EnergizedExample:Low Limit

De-energized

p PU = 5 mA DO = 7 mA

Low LimitDiscrete Output

Page 1-210

g5 7 mA

DSLC

Process Switches

P S it h ifi if th Hi h L Li it

Min. Max. Default UnitProcess Switches Enabled / Disabled Disabled Process Switches - specifies if the High or Low Limit

discrete outputs, terminals 26 and 27, will activate on high or low limit process alarmhigh or low limit process alarm.

Page 1-211

dslc

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