GE EX2100 manual

g GE Industrial Systems GEH-6632 EX2100 ™ Excitation Control User’s Guide[...]

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g GE Industrial Systems Document: GEH-6632 Issue Date: 2000-09-30 EX2100 ™ Excitation Control User’s Guide[...]

© 2000 General Electric Company , USA. All righ ts reserved. Printed in the United States of Am erica. These instructions do not purport to cover all details or variations in equipm ent, nor to provide for ev ery possible contingency to be m et during installation, operation, and maintenance. I f further inform ation is desired or if particular pr[...]

EX2100 User' s Guide GEH-6632 Safety Symbol Legen d • • • • a Safety Symb ol Legend Indicates a procedure, co ndition, or stat ement that, if no t strictly observed, could result in personal injury or death. Indicates a procedure, co ndition, or stat ement that, if no t strictly observed, could result in damage to or destruction of equ[...]

b • • • • Safety Symbol Legend GEH-6632 EX21 00 User’s Gu ide This equipment contains a potential hazard of electric shock or burn. Only personnel w ho are adequa tely trained a nd thoroughly fam iliar w ith the equipment and the instructions should install, operate, o r m aintain this eq uipment. Isolation of test eq uipment from the equ[...]

We welcome comments and suggesti ons to make this publicatio n more useful. Your Name Today’s Date Your Company’s Name and Add ress Job Site GE Requisition No. Publication No. Your Job Functi on / How You Use This Publication Publication Is sue/Revisi on Date If needed, how c an we contact you? Fax No. Phone No. E-mail Address General Rating Ex[...]

......................................................................... Fol d here and clos e with staple o r tape .......................................................................................... ____________________________ ____________________________ ____________________________ GE Industrial Systems Documentation D esign, Rm. 29 1 1[...]

EX2100 User’s G uide GEH-6632 Contents • • • • i Contents Chapter 1 Equipment Overv iew 1-1 Introduction ................................................................................................................... ......... 1-1 System Overview .........................................................................................[...]

ii • • • • Contents GEH-6632 EX2 100 User’s Gu ide Chapter 3 Print ed Wiring Boards Ov erview 3-1 Introduction ................................................................................................................... ......... 3-1 Control Boards ....................................................................................[...]

EX2100 User’s G uide GEH-6632 Contents • • • • iii Changing Display Units ........................................................................................... 5-7 Adjusting Dis play Contrast ...................................................................................... 5-7 Status Screen .....................................[...]

iv • • • • Contents GEH-6632 EX2 100 User’s Gu ide Notes[...]

EX2100 User’s G uide GEH-6632 Chapter 1 Equipme nt Overview • • • • 1-1 Chapter 1 Equipment Overview Introduction The EX2100 ä Excit ation Control (EX 2100 or exciter) produ ces the field excitation current to control generator ac termin al voltage and/or the reactive volt -amperes. It is a full static excitation syste m designed for gen[...]

1-2 • • • • Chapter 1 Equi pment Over view GEH-6632 EX2100 Us er’s Gu ide System Overview The exciter is a flexible m odular system that can be assemble d to provide a rang e of available output cu rrents and several levels of system redundancy. These options include power from a potential, compound, or auxiliary source. Single or multipl[...]

EX2100 User’s G uide GEH-6632 Chapter 1 Equipme nt Overview • • • • 1-3 Step-up Transformer A ir Circuit Breaker (52G) Current Transfo rmers (CTs) Potenti al Transformers (PTs) Generator Transmissi on Line Turbine Power Conversion Module (Bridge) Instrument ation A c Source Controlled dc to Field Control, Sequencing, Protecti on Data H ig[...]

1-4 • • • • Chapter 1 Equi pment Over view GEH-6632 EX2100 Us er’s Gu ide Flashing Control DC CB or Contact or Shunt Shaft Voltage Suppres sion A ctive Field Ground Detector Bridge I/O Line Filter Linear Reactors (3) Generator A C A C Load I/O Custom er I/O Gating Sel ector Control M2 Control M1 Control C A C A C CB A u x Source PT CT DC [...]

EX2100 User’s G uide GEH-6632 Chapter 1 Equipme nt Overview • • • • 1-5 Hardware Overview The EX2100 hardw are is contained in three cabin ets as follows: • control cabinet f or the control, communication , and I/O boards • auxiliary cabinet f or field flashing an d protection circuits such as de-excitation and shaft volta ge suppr es[...]

1-6 • • • • Chapter 1 Equi pment Over view GEH-6632 EX2100 Us er’s Gu ide Software Overvi ew Microprocessor-bas ed controllers (A CLA and DSPX) execute the ex citer control code. The softw are consists of modu les (blocks) combined to create the requ ired system functionalit y. Block definitions and configuration parameters are stored in [...]

EX2100 User’s G uide GEH-6632 Chapter 1 Equipme nt Overview • • • • 1-7 Input/Output QTY Potential tr ansformers (PT s) 2 3-pha se standard, single ph ase avail able 120 V ac nom inal 1 VA nominal b urden Current transf ormers (CTs, 1 or 5 A) 2 Any two phases, s ingle phase av ailable 1 VA nominal b urden 86G dedica ted contact input 1 op[...]

1-8 • • • • Chapter 1 Equi pment Over view GEH-6632 EX2100 Us er’s Gu ide How to Get Help “+” indicates th e international access code requir ed when calling f rom outside of t he USA. If help is needed beyond the instruction s provided in the drive system documentation, contact GE as follo ws: GE Indust rial Systems Prod uct Ser vice[...]

EX2100 User’s G uide GEH-6632 Chapter 2 Functi onal Descrip ti on • • • • 2-1 Chapter 2 Functional Description Introduction This chapte r describes th e function of th e EX2100 static ex citer and the in dividual control an d protection ci rcuits. Pow er suppli es and the di stribut ion of powe r is also covered. The functional descriptio[...]

2-2 • • • • Chapter 2 Fun ctional Descri ption GEH-6632 EX2100 Us er’s Guide Exciter Hardware The EX2100 exciter consis ts of the following basic components. • Po wer Conve rsi on Mo dule ( PCM ) and coo ling fa ns • Power poten tial transformer (PPT) (mou nted separate from exciter) • Line-to-line filters • Shaft voltage s uppres[...]

EX2100 User’s G uide GEH-6632 Chapter 2 Functi onal Descrip ti on • • • • 2-3 Exciter Configurations EX2100 Excite rs can be su pplied wi th single or redu ndant con trol, and with single or redundan t bridges. V ariations of the single con trol type are sh own in Figure 2- 1. Simplex Control with Parallel PCMs Control with I/O and Operat[...]

2-4 • • • • Chapter 2 Fun ctional Descri ption GEH-6632 EX2100 Us er’s Guide Exciters with du al (redundant) con trol are shown in Figure 2- 2. Multiple PCMs can be suppli ed in sim plex, warm backu p, or redundant n+1 or n+2 m odes (wi th n+1 or n+2 e qual t o 6) . Dual Control with Single PCM PCM Dual Control with Warm Backup PCM s PCM [...]

EX2100 User’s G uide GEH-6632 Chapter 2 Functi onal Descrip ti on • • • • 2-5 Power Conver sion Cabinet The Power Convers ion cabinet contain s the Power Conversion Modu le (PCM), the Exciter Gate Pulse Amplifier (EGPA) board, ac circuit break er, and the dc circui t contactor. Three-phas e power for the PCM com es from a PPT external to [...]

2-6 • • • • Chapter 2 Fun ctional Descri ption GEH-6632 EX2100 Us er’s Guide Current Shunt EDCF provides dc current and voltage f eedback A dc sh unt provides the bridge out put current feedback signal. The mV ou tput sign al is input to a differential amplifier on the EDCF board. T he am plifier o utput voltage controls the frequency of [...]

EX2100 User’s G uide GEH-6632 Chapter 2 Functi onal Descrip ti on • • • • 2-7 Cooling Fan Assembly The SCR bridge as sembly is cooled with forced air. From two to six overhead fans are used, depen ding on th e bridge rating an d redundancy requ irements. The fan s are powered by singl e-phase 115 V ac su pplied by the cus tomer. In redun [...]

2-8 • • • • Chapter 2 Fun ctional Descri ption GEH-6632 EX2100 Us er’s Guide Auxiliary Cabinet The auxiliary cabinet is located next to the po wer conversion cabin et and contains modules to protect th e generator and prov ide startu p dc power. Modul es for filt ering the incoming ac power, for de-excitation, shaft volta ge suppression, [...]

EX2100 User’s G uide GEH-6632 Chapter 2 Functi onal Descrip ti on • • • • 2-9 Shaft Voltage Suppressor The Shaft Volt age Suppres sor protects the shaft beari ngs. Excitation systems, whic h produce a dc voltage from ac through a solid state rectification process, produce ripple and spike v oltages at the exciter output. Due to their rapi[...]

2-10 • • • • Chapter 2 Fu nctional Des cription GEH-6632 EX2100 U ser’s Gu ide Control Cabinet The control cabinet cont ains the keypad control rack , control power dis tribution module and supplies, and I/O terminal bo ards. Diagnostic Inter face (Keypad) A second keypad is pr ovided for re dundant contr ols. The keypad is a local operat[...]

EX2100 User’s G uide GEH-6632 Chapter 2 Functi onal Descrip ti on • • • • 2-11 Control Modul e The control m odule is a VME-style rack with boards cable connected to the I/O terminal boards. This rack is divided into three indep endently powered sections for the M1, M2, and C con trollers. Each con troller consists of cont rol and I/O pro[...]

2-12 • • • • Chapter 2 Fu nctional Des cription GEH-6632 EX2100 U ser’s Gu ide Simplex Control System T h e i n terc o nn ecti o n s b e t w e e n t h e s i m p l e x c o n t r o l a n d t h e te r m i n al bo ar d s, gene rator protection m odules, an d power supply are show n in Figure 2- 5. Only on e EPSM power supply is used but this [...]

EX2100 User’s G uide GEH-6632 Chapter 2 Functi onal Descrip ti on • • • • 2-13 Redundant Control System A redun dant control sy stem has three control lers and th ree redundant pow er suppli es, one for each controller. The pow er supply rack also h olds three ground detector module s. Figure 2- 6 shows th ree EDCF boards, and t here can [...]

2-14 • • • • Chapter 2 Fu nctional Des cription GEH-6632 EX2100 U ser’s Gu ide Controller C Controller C is only used with redundant syste ms. It is mounted in the control rack and is physically similar to the M1 and M2 controllers, ho wever, C is not responsible f o r br i d g e f i r i n g a n d t h ere f ore doe s n o t co n t a i n a [...]

EX2100 User’s G uide GEH-6632 Chapter 2 Functi onal Descrip ti on • • • • 2-15 addition there is an isolated 70 V dc output for use by EXTB and ECTB for contact wetting. Up to three groun d detection modules (EGDM) are also mounted in the EPBP, as shown in Figure 2- 9. These communicate wi th the EXAM module, which is located in the auxil[...]

2-16 • • • • Chapter 2 Fu nctional Des cription GEH-6632 EX2100 U ser’s Gu ide J1_M1 J1_M2 J1_C FAN EXTB EETB EDEX ECTB M1 J60 2 CONTROL MEDIA CONV EDEX EDCF EGDM ED EX CROW BAR FAN EXTB EETB EDEX ECTB M2 J602 CONTROL MEDI A CONV EDEX EDCF EGD M ED EX CROW BAR FAN EXTB EETB EDEX ECTB C J60 2 CONTROL MEDIA CONV EDEX ED CF EGDM ED EX CROW B[...]

EX2100 User’s G uide GEH-6632 Chapter 2 Functi onal Descrip ti on • • • • 2-17 Exciter Software The exciter s oftware is conf igured and loaded f rom the t oolbox, and resi des in the controlle rs. The software i s represent ed on the toolbox screen by con trol blocks linked together to show the signal flow. Figure 2-10 is a simplified ov[...]

2-18 • • • • Chapter 2 Fu nctional Des cription GEH-6632 EX2100 U ser’s Gu ide Genera tor Voltage/Current Sensing DC Regulator AC Regulator Exciter Bridge AC Voltage adjust DC Voltage adjust Exciter Sy stem Stabilizer Circuits Over-ex citation Limiter Under-ex citation Limiter Voltage Sensing & Load Compensation Power System Stabilize[...]

EX2100 User’s G uide GEH-6632 Chapter 2 Functi onal Descrip ti on • • • • 2-19 AUTO REF PSS UEL AVR Power System Stabil izer Under Ex citation Limi t Genera tor Terminal Voltage Wa t t s AVR Setpoi nt and Tracking (VM AG) Auto mat ic Volt age Regulat or FVR Track Value Setpoint EXASP Exciter AVR Setpoint . Setpoi nt V/Hz Limit; Reac tive [...]

2-20 • • • • Chapter 2 Fu nctional Des cription GEH-6632 EX2100 U ser’s Gu ide Auto Reference – AUTO REF The AUTOREF block g enerates an auto (or Auto Con trol (AC)) setpoint for th e Autom atic Voltag e Regulator (AVR ) based on us er-supplied param eters and conditions. Raise/lo wer inputs to AUTO REF co me in from the other devices o[...]

EX2100 User’s G uide GEH-6632 Chapter 2 Functi onal Descrip ti on • • • • 2-21 Proportional Gain Anti- windup Preset Value Σ + + Posi tive Lim it Negative Lim it 1 s Σ + - Σ + - a>b? a b 0.05 S R Q Output Value Tracking Gain r/s AVR Setpoint AVR Status Integral Gain Tracking Control Preset State Integrator Trackin g Input Error Q St[...]

2-22 • • • • Chapter 2 Fu nctional Des cription GEH-6632 EX2100 U ser’s Gu ide voltag e regulator loop su ch as compoun d exciters and some high ceiling exciters, t he FVR uses a setpoint from either the AVR or th e MANUAL REF block, and is always operational whether in manual or automatic operation. The Field Current Regu lator (FCR) is [...]

EX2100 User’s G uide GEH-6632 Chapter 2 Functi onal Descrip ti on • • • • 2-23 Operator Interface The HMI contains exciter and turbine graphic displays . Operator and eng ineering work stations such as the HMI (Hu man Machine Interface) and the toolbox communicate with the exciter. This allows operator m onitoring and control of th e exci[...]

2-24 • • • • Chapter 2 Fu nctional Des cription GEH-6632 EX2100 U ser’s Gu ide Notes[...]

EX2100 User’s G uide GEH-6632 Chapter 3 Prin ted Wiring Boa rds O verview • • • • 3-1 Chapter 3 Printed Wiring Boards Overview Introduction This chapt er describes th e EX2100 printed w iring boards and thei r operation. These boards fall into four functional gro ups; control rack boards including controller boards and I/O processors , I/[...]

3-2 • • • • Chapter 3 Pr inted Wiring Bo ards Overview GEH-6632 EX21 00 User’s G uide Control Boards The control boa rds are located in the con trol modul e. This modul e consists of the exciter backplane (EBKP) and th e metal chassis that holds the boards (ref er to Figure 3-1). The con trol boards are as follows: • IS200DSPX Di gital [...]

EX2100 User’s G uide GEH-6632 Chapter 3 Prin ted Wiring Boa rds O verview • • • • 3-3 J304 J305 J306 J307 J308 J309 J405 J404 J406 J407 J408 J409 J509 J508 J507 J506 J505 J504 M1 Power M2 Power C Pow er Tool M 1 Tool M 2 Keypad M1 Keypad M2 E P C T E G P A 1 E G P A 2 E P C T E C T B E C T B E G P A 3 E G P A 4 E A C F E X T B E G P A 5 E[...]

3-4 • • • • Chapter 3 Pr inted Wiring Bo ards Overview GEH-6632 EX21 00 User’s G uide ACLA Board ACLA handles network communicati ons and out er loop funct ions. The ACLA board is a double- slot, 3U h igh module l ocated next to th e DSPX. ACLA provides Ethe rnet communications with th e turbine control, LCI, and HMI, an d runs outer loop[...]

EX2100 User’s G uide GEH-6632 Chapter 3 Prin ted Wiring Boa rds O verview • • • • 3-5 I/O Terminal Boards The exciter terminal boards are as f ollows: • IS200EPC T Exciter P T/CT board (E PCT) • IS200ECTB Ex citer Con tact Terminal Board (ECTB) • IS200EXTB Exciter Term inal Board (EX TB) • IS200EDCF Exciter Dc Feedback board (EDCF[...]

3-6 • • • • Chapter 3 Pr inted Wiring Bo ards Overview GEH-6632 EX21 00 User’s G uide EDCF Board EDCF handles bridge dc voltage and current feedb ack. The EDCF board m easures field current and field voltage at the SCR bridg e, and interfaces to the EISB board in the control panel over a high-speed fiber-optic link. The fiber- optics prov[...]

EX2100 User’s G uide GEH-6632 Chapter 3 Prin ted Wiring Boa rds O verview • • • • 3-7 Bridge and Protec tion Boards a nd Modules The exciter bridge and protection boards are as f ollo w s: • IS200EGPA Ex citer Gat e Pulse Am plifier board (EG PA) • IS200EXCS Conduc tion Sensor board (EXC S) • IS200EDEX Ex citer De-E xcitation board [...]

3-8 • • • • Chapter 3 Pr inted Wiring Bo ards Overview GEH-6632 EX21 00 User’s G uide In a redun dant system, the set of three EGDM boards are configured as a Controller (C), Master 1 (M1) an d Master 2 (M2). The configu ration for each EGDM is controlled by a set of program pin s on the P2 connector. The C con troller receives informatio[...]

EX2100 User’s G uide GEH-6632 Chapter 3 Prin ted Wiring Boa rds O verview • • • • 3-9 Power Supply Boards The exciter pow er supply boards are as follows: • IS200EPD M Exciter Pow er Distributi on Module (EPDM) • IS200EPB P Excite r Powe r Backplane (EPBP) • IS200EPS M Excite r Powe r Supply Modu le (EPSM) • DACA Module EPDM Modul[...]

3-10 • • • • Chapter 3 Pr inted Wiring B oards Overview GEH-6632 EX21 00 User’s Gu ide J1_M1 J1_M2 J1_C FAN EXTB EETB EDEX ECTB M1 J602 CONTROL MEDIA CONV J21M1 J16 M1 J17 M1 EDEX EDCF J19 M1 EGDM J18 M1 EDEX CROW BAR J20 M1 J15M1 J14M1 J13M1 J12M1 P101 P201 P105 P205 FAN EXTB EETB EDEX ECTB M2 J602 CONTROL MEDIA CONV J21M2 J16 M2 J17 M2 [...]

EX2100 User’s G uide GEH-6632 Chapter 3 Printed Wir ing Boar ds Overvi ew • • • • 3-11 Related Boa rd Publications For a more detailed desc ription of each board' s circuitry and application data, ref er to the f ollowing docum ents: • GEI-100460 IS200EBKP Ex citer Backpl ane • GEI-100267 IS200DS PX Digit al Signal Proces sor Boa[...]

3-12 • • • • Chapter 3 Pr inted Wiring B oards Overview GEH-6632 EX21 00 User’s Gu ide Notes[...]

EX2100 User’s G uide GEH-6632 Chapter 4 Ter minal Board I/O and Equ ipment Conne ctions • • • • 4-1 Chapter 4 Terminal Board I/O and Equipment Connections Introduction This chapter describes th e customer's equipm ent connections, and inputs and ou tputs (I/O) avail able throug h terminal board w iring. Sy stem cablin g to provide de[...]

4-2 • • • • Chapter 4 Termi nal Board I/O and Equipment C onnections GEH-6632 EX2100 U ser’s Gu ide Power Connections and Analog I/O Figure 4- 1 displays a ty pical connect ion diagram of the common powe r and analog I/O for an excitation system. 5 3 1 6 4 2 3 1 4 2 3 1 4 2 PTSW1 H3 H2 H1 X3 X2 X1 PT1 P RI VA C : 14 40 0 SE C VA C : 12 0 [...]

EX2100 User’s G uide GEH-6632 Chapter 4 Ter minal Board I/O and Equ ipment Conne ctions • • • • 4-3 Power Potential Transformer Inputs In the EX 2100 excitati on system , a 3-phase source of ac power is conv erted to a controlled dc ou tput. This ac input can be from one of several sources. Most common is a generator terminal connected Y-[...]

4-4 • • • • Chapter 4 Termi nal Board I/O and Equipment C onnections GEH-6632 EX2100 U ser’s Gu ide Customer Contact I/O Customer con tact inputs and relay contact outputs are wired to th e ECTB board. In addition to six general purpose contact inputs, there are two dedicated contact inputs, w etted by 70 V dc f rom the ex citer, as foll [...]

EX2100 User’s G uide GEH-6632 Chapter 4 Ter minal Board I/O and Equ ipment Conne ctions • • • • 4-5 Four Gener al Purpose Rel ay Output s as Above Customer Power t o Contacts 125 V dc Tw o Trip Relay Outputs as Above P24M 1 Customer Power t o Contacts 125 V dc Coi l K#M1 Relay Driver M1 M1 J405 Auxil iary Contact Input Six Circuits as Abo[...]

4-6 • • • • Chapter 4 Termi nal Board I/O and Equipment Con nections GEH-6632 EX2100 Us er’s Gu ide Power Supply Inputs The customer’s ac an d dc power inputs are wired to th e exciter’s Power Distribution Module (EPDM), which is located on the left hand side of the exciter power backplane rack . Figure 4-3 s hows the screw terminals [...]

EX2100 User’s G uide GEH-6632 Chapter 4 Ter minal Board I/O and Equ ipment Conne ctions • • • • 4-7 Line Filte r Connectio ns The 600 V filter is connected to fuse board LFU1. T he 1000 V filter has tw o filter circuits and is connected to fuse boards LFU1 and LFU2. T he filters are located at the top of the auxiliary cabinet. Connection [...]

4-8 • • • • Chapter 4 Termi nal Board I/O and Equipment C onnections GEH-6632 EX2100 U ser’s Gu ide Exciter Internal I/O Exciter AC Feedback The EACF board m easures the exciter ac supply voltage and current. The terminal board contain s transformers for a 3- phase voltage measurement, and term inals for two flux /air core coils. The cabl[...]

EX2100 User’s G uide GEH-6632 Chapter 4 Ter minal Board I/O and Equ ipment Conne ctions • • • • 4-9 Field Current Feedback The field curren t is measured across a dc shun t at the SCR bridge. This g enerates a nomina l 100 mV signal , which is input to a diff erential am plifier. The outpu t voltage from the am plifier rang es from –5 V[...]

4-10 • • • • Chapter 4 Ter minal Boar d I/O and Equipment C onnections GEH-6632 EX21 00 User’s Gu ide 41A 41B J2/3M FILT1 1 2 3 4 3 4 To Bridge 2 41A To Bridge 2 SCR1 SCR4 SCR2 SCR5 SCR3 SCR6 41B J1 J2 J5 J3 J6 J4 Generator Field - Auxilia ry Cabinet Generator Field + 2 1 + - BK W H 53B (Y) 53B (W) Field Flash De-Excit. HS + FDI- 1 TB1- 2[...]

EX2100 User’s G uide GEH-6632 Chapter 4 T erminal Board I /O and Equipment C onnections • • • • 4-11 De-Excitation During shutdown of the generator, th e stored energy of the generator f ield inductance must be dis sipated. In the EX2100 excit er, this is the fun ction of th e EDEX de-ex citation module and f ield discharge res istor or i[...]

4-12 • • • • Chapter 4 Ter minal Boar d I/O and Equipment C onnections GEH-6632 EX21 00 User’s Gu ide EXTB G1 - Contactor Mode 5 2 J505 Control Cabinet M1 Status J8 J6 M2 Status KDEP J12M1 J12M2 P70VM1 P70VM2 P70Vdc J515 J508 21 N125 P125 P70V Status Feedback 70V Ret 3 6 4 1 3 2 4 7 5 8 6 1 9 P125 N125 41 Trip Relays not present on G1 and[...]

EX2100 User’s G uide GEH-6632 Chapter 4 T erminal Board I /O and Equipment C onnections • • • • 4-13 Control Cabinet M1 D e- Exc S tatus M2 D e- Exc S tatus Self Firing 5 2 J8 M2 F iri n g Command 3 1 6 4 P24V P24V DEPL HS- HS+ Auxiliary Cabinet 2 1 FDI Generator Field + Generator Field - De-Ex citation EDEX EXT B G3 - Breaker Mode 5 2 J5[...]

4-14 • • • • Chapter 4 Ter minal Boar d I/O and Equipment C onnections GEH-6632 EX21 00 User’s Gu ide Crowbar The optional crowbar subsystem li mits high negative voltages that can be ind uced into the PCM during a pole slip (loss o f synchronization) event. Like the de- excitation module, the crowbar will self-fire based o n selective fi[...]

EX2100 User’s G uide GEH-6632 Chapter 4 T erminal Board I /O and Equipment C onnections • • • • 4-15 Auxiliary Cabinet EISB - M1 Control Cabinet Power Backplane EPBP Generator Field - Generator Field + Ground Detector Voltage Optical Receiver VCO EGDM - M1 Optical Transmitt er Oscillator 1 Optical Receiver VCO M2 Optical Transmitt er Osci[...]

4-16 • • • • Chapter 4 Ter minal Boar d I/O and Equipment C onnections GEH-6632 EX21 00 User’s Gu ide Field Flas hing The station b attery is used to initiate the field cu rrent. An auxiliary a c source can also be used. Field f lashing relay s 53A and 53B are con trolled from drivers on the EMIO board, through pilot relays on EXTB. In re[...]

EX2100 User’s G uide GEH-6632 Chapter 4 T erminal Board I /O and Equipment C onnections • • • • 4-17 13 4 2 EXTB 3 12 6 9 5 2 10 4 J7 J5M1 M1 53B M2 53B C 53B M1 53A M2 53A C 53A P70Vdc P70VDC M1- EMI O (J5) M2- EMI O (J5) C-EMIO (J5) P70Vdc P70VM1 P70VM2 6 53B 53A 9 5 2 10 4 J7 3 12 53A Aux 1 2 1 2 SUP 3 4 SUP B B A A Current Lim it Cir [...]

4-18 • • • • Chapter 4 Ter minal Boar d I/O and Equipment C onnections GEH-6632 EX21 00 User’s Gu ide Shaft Voltage Su ppressor Excitat ion systems , which produce a dc volt age from an ac supply through a solid state rectification process , cause ripple and spike voltages at the ex citer output. Due to their rapid rise and decay times th[...]

EX2100 User’s G uide GEH-6632 Chapter 4 T erminal Board I /O and Equipment C onnections • • • • 4-19 Data Highway Connections The Data Highw ay integrates several different sing le contro l systems. The EX2100 exciter comm unicates over the same data high way as the Mark VI turbine control and the HMI. A typical exciter connection to the [...]

4-20 • • • • Chapter 4 Ter minal Boar d I/O and Equipment C onnections GEH-6632 EX21 00 User’s Gu ide Control Syste m Toolbox Con nection The toolbox connector on the exciter back plane supports an RS-232C cable, which connects an extern al computer to the DSPX board. This conn ection is for maintenance pu rposes. There are three 9-pin co[...]

EX2100 User’s G uide GEH-6632 Chapter 5 Di agnostic Interf ace-K eypad • • • • 5-1 Chapter 5 Diagnostic In terface-Keypad Introduction This chapter provides operatin g guidelines for th e Diagnostic Interface, more commonly called the keypad. The key pad is a door-m ounted, local con trol unit that enables y ou to: • Monit or fr eque nc[...]

5-2 • • • • Chapter 5 D iagnostic Interf ace-Keypad GEH- 6632 EX2100 User ’s Guide Using the Push buttons The keypad includes membran e-type pushbuttons to access exciter values and to control t he exciter. Tables 5-1 and 5- 2 defin e the pushbutt on functi ons for menu naviga tio n and e xcit er co ntro l (see Figure 5-1) . Exciter Healt[...]

EX2100 User’s G uide GEH-6632 Chapter 5 Di agnostic Interf ace-K eypad • • • • 5-3 Table 5-1. N avigation Pu shbuttons Button Function Status Displays the default Status Screen, w hich show s eight parame te rs as num ber s or bargraphs. A set of Healt h icons (di splayed a t all time s; see Exciter H ealth and S tate Icons ) prov ides ad[...]

5-4 • • • • Chapter 5 D iagnostic Interf ace-Keypad GEH- 6632 EX2100 User ’s Guide Table 5-2. Ex citer Contro l Pushbutton s Button Function Reset Faults Resets faults . Command Menu Quick ac cess to a list of co mmonly used co mmands Auto Selects Auto mode (AC regulat or or AVR) Man Selects M anual mode (D C regulator or FVR) Increase vo[...]

EX2100 User’s G uide GEH-6632 Chapter 5 Di agnostic Interf ace-K eypad • • • • 5-5 Reading th e Display The keypad displays information as both text and an imated graphics. There are two types of content screen s, selected by pres sing the corres ponding Navigation butt on: Status and Menu. The Status Screen (Figure 5-2) is the default sc[...]

5-6 • • • • Chapter 5 D iagnostic Interf ace-Keypad GEH- 6632 EX2100 User ’s Guide Table 5-3. Ex citer Healt h and State I cons Group Icon Indication Description Communi cations OK Animated line (its center raises an d lowers) shows tha t there is communic ation between t he key pad and the exciter. Heartbeat Communi cations not establi s[...]

EX2100 User’s G uide GEH-6632 Chapter 5 Di agnostic Interf ace-K eypad • • • • 5-7 Changing Displ ay Units Ø To change the type of measure ment units displayed 1. From the Main Menu, select Genera l Setup . 2. Select Display Units . 3. Select the display units para meter to edit it (see belo w ). 4. Highlig ht, then select the preferred [...]

5-8 • • • • Chapter 5 D iagnostic Interf ace-Keypad GEH- 6632 EX2100 User ’s Guide Status Screen The St atus scre en di spla ys up to e ight variables (parameters). The f irst two parame ters are displaye d both in t ext and anim ated meters. Table 5-4 def ines the characteristics of the bar g raphs for these param eters. Reading the Mete[...]

EX2100 User’s G uide GEH-6632 Chapter 5 Di agnostic Interf ace-K eypad • • • • 5-9 Using the Menus The keypad’s Main Menu leads to other menu s creens, where data can be review ed and modif ied. The Main Menu can be accessed f rom any screen, as follows: • If already in a Menu screen, press the Menu bu tton. • If in a Status s creen[...]

5-10 • • • • Chapter 5 D iagnostic Interf ace-Keypad GEH-6632 EX21 00 User’s Gu ide 2. To v iew deta il on a particular fault, select that fault (listed on the Active Fa ult Display screen). The following screen displa ys . SELECTED FAULT - PRESS Low AC V, B 006:40:11.008 Low AC input volts detected on the field exciter. 3. Re set the f a[...]

EX2100 User’s G uide GEH-6632 Chapter 5 Diagnos tic Interfac e-Keypa d • • • • 5-11 2. For an Option param eter: a. Use the Up or Down Arrow buttons to select a new parameter value. b. Pre ss the Enter b utton to accept the change or Escape to exit and keep the present value. Press ENTER to accept, ESC to leave TripVHiTrip New Value = Tri[...]

5-12 • • • • Chapter 5 D iagnostic Interf ace-Keypad GEH-6632 EX21 00 User’s Gu ide 2. Press Enter to make a back up copy of the param eters or Escape to cancel. Ø To restore a parameter from backup 1. Stop the exciter. (This fun ction cannot be executed with th e exciter running.) 2. From the Main Menu, select Param eter Backup Function[...]

EX2100 User’s G uide GEH-6632 Chapter 5 Diagnos tic Interfac e-Keypa d • • • • 5-13 Firmware and Hardware Information Ø To view the firmware versions for the DSPX board and the keypad From the Main Menu select: 1. Genera l Setup 2. Firmw are Version & Hardw are Info 3. Display Firm ware Version The following screen displays: GE Gener[...]

5-14 • • • • Chapter 5 D iagnostic Interf ace-Keypad GEH-6632 EX21 00 User’s Gu ide Protecting the Keypad To protect the exciter from unauthorized operation or recon figuration, the k eypad includes two security controls , Pass w ord and Pr ivilege Level. The Passwo rd is a 5-digit number that protects the Pass word and Privilege Level fr[...]

EX2100 User’s G uide GEH-6632 Chapter 5 Diagnos tic Interfac e-Keypa d • • • • 5-15 2. Enter the password as follows: a. Use the Up an d Down Arrow buttons to index through the valid digits (0 throug h 9). b. Use th e Right and Left A rrow buttons to move the cursor to the digit to edit. - P ress En ter to accept the Password. - If the pa[...]

5-16 • • • • Chapter 5 D iagnostic Interf ace-Keypad GEH-6632 EX21 00 User’s Gu ide Notes[...]

EX2100 User’s G uide GEH-6632 Appendix A Warr anty and Re newal P arts • • • • A-1 Appendix A Warrant y and Renewal Parts Introduction When ordering a replacement part for a GE exciter, th e customer needs to kn ow: • How to accurately iden tify the part • If the part is under warranty • How to place the order This information helps[...]

A-2 • • • • Appendix A Warranty and R enewal Part s GEH-6632 EX2100 User’s Gu ide Identifying the Part An exciter component, or part, is identified b y its assigned part number and descript ion . The part num ber is normally found on a nam eplate on the compon ent. The descriptio n is included in the system renewal parts li st. Renewal Pa[...]

EX2100 User’s G uide GEH-6632 Appendix A Warr anty and Re newal P arts • • • • A-3 Order Specific A ssemblies These parts m ake up the particular exciter. Other items obtained specifically for the order may also use a similar part num ber structure, which prov ides information abou t the equipment. Unit & sequen ce number of ### X X 3[...]

A-4 • • • • Appendix A Warranty and R enewal Part s GEH-6632 EX2100 User’s Gu ide Printed Wiring Boards A prin ted wiring board is i dentifi ed by an alphanumeri c part (catalog) n umber stamped n ear its edge. The st ructure of a board’ s part num ber is described bel ow. Note Al l digits are im portant when orderin g or replacing any [...]

EX2100 User’s G uide GEH-6632 Appendix A Warr anty and Re newal P arts • • • • A-5 How to Order Parts Parts still under w arrant y may be obtained directly from the f actory: (“+” indicates the international access code requir ed when calling f rom outside of t he USA.) GE Indust rial Systems Prod uct Ser vice E ngi neeri ng 1501 Roan[...]

A-6 • • • • Appendix A Warranty and R enewal Part s GEH-6632 EX2100 User’s Gu ide Notes[...]

EX2100 User’s G uide GEH-6632 Appendix B R atings and Spe cificati ons • • • • B-1 Appendix B Ratings and Specifications The actual equipment rating is on your exciter nameplate. This append ix indicates t he range of po ssible product offerings but not necessarily the capability of your exciter. EX2100 Specification Description Power Con[...]

B-2 • • • • Appendix B Ratings and S pecifications GEH- 6632 EX2100 User’s G uide Input/Output QTY Potent i al t r a n sfo r mers (P T s ) 2 3-ph a se sta n dard , s i ng l e-ph a se a v ail a ble 120 V ac nom inal 1 VA nominal b urden Current transf ormers (CTs, 1 or 5 A) 2 Any two phases, sing le phase i s available 1 VA nominal b urden[...]

EX2100 User’s G uide GEH-6632 Appendix B R atings and Spe cificati ons • • • • B-3 Cabinet Dimensions & W eight Redundant control w ith dual PCM redundant conv erter in a t hree-cabinet lineup Width 141.74 in (3600 mm) Height 104.32 in (2650 mm) Depth 31.5 i n (800 mm) Weight of Co nverter cab inet 3,600 lbs. Weight of Tota l Lineup ([...]

B-4 • • • • Appendix B Ratings and S pecifications GEH-6632 EX2100 Us er’s Guide Notes[...]

EX2100 User’s G uide GEH- 6632 Glossary of Ter ms • • • • i Glossary of Terms 6U Full height Versa Modul e Eurocard (VME) board applicati on code Software that cont rols the machine or process, specif ic to the application. AS C I I American S tandard Code for In formation Interchange. An 8- bit code us ed for data. auxiliary source A sou[...]

ii • • • • Glossary of Ter ms GEH-6632 EX2100 U ser’s Gu ide block Instru ction blocks contain basic control fun ctions, which are conn ected together during conf iguration to form the requ ired machine or process control. Blocks can per form ma th co mp utatio ns, se que nci ng, or regu lato r (c ontinuo us) c ontr ol. board Printed w ir[...]

EX2100 User’s G uide GEH- 6632 Glossary of Ter ms • • • • iii DCS (Distri buted Control S y stem) Control system, us ually appl ied to control of boilers and othe r process equi pment. de-excitation The de-exci tation circui t provides a con duction path th rough a discha rge resistor to dissipate the field current after a unit trip. devi[...]

iv • • • • Glossary of T erms GEH-6632 EX2100 U ser’s Gu ide fault code A message from the con troller to the HMI indicating a system warning or f ailure. field flashing The supply of initial exciter current during startup, usually from station batteries. field ground detector The field groun d detector is an active circuit that detects a[...]

EX2100 User’s G uide GEH- 6632 Glossary of Ter ms • • • • v hot backup Two bridges are used but only one is conn ected to the field, the oth er (the backup) is connected to a sm all dummy load. If the active bridg e fails it is disconnected from the field by relays , and the backup is connected. ICS Integrated Control Syst em. ICS combine[...]

vi • • • • Glossary of T erms GEH-6632 EX2100 U ser’s Gu ide Modbus A se rial communicati on protocol developed by Modicon for use betw een PLCs and other co mputers. multip le bridg es Several pow er producing bridges operat e in parallel to produce a hig h field cu rrent. These share the exciter current load to provide redundancy and in[...]

EX2100 User’s G uide GEH- 6632 Glossary of Ter ms • • • • vii product code (runti me) Software stored in the controller’s Flash mem ory that converts application code (pcode) to execu table code. PRV Peak Reverse Voltage is li mited with pole slip resisto rs, wired across the SCRs. PT Potential Transfor mer, u sed for measuring voltage [...]

viii • • • • Glossary of Terms GEH-6632 EX2100 U ser’s Gu ide sampling r ate The rate at which process s ignal samples are obtained, measured in s amples/second. serial loader Connects the controll er to the toolbox PC us ing the RS-232C C OM ports. The Serial Loader initializes the controller flash file syste m and sets its TCP/IP addres[...]

EX2100 User’s G uide GEH- 6632 Glossary of Ter ms • • • • ix toolbox A Window s NT -based software pack age used to confi gure the EX2100 an d Mark VI turbine controller. under-excitation l imit (UEL) UEL softw are functions to prevent gen erator over-heat ing caused by under excitation. unit data highwa y (UDH) Connects the EX2100, Mark [...]

x • • • • Glossary of Ter ms GEH-6632 EX2100 U ser’s Gu ide Notes[...]

EX2100 User’s G uide GEH-6632 Index • • • • i Index A ac disconn ect 1-5, 2- 5 Ac Line-to-Line Filters 2-1, 2-8 Ac to D c Converter 1- 6, 2-14, 3- 1, 3-9, 3-11, B-1 ACLA (see Application Control Layer Module) Analog I/O 4-1, 4-2 Analog Input 4- 1, 4-3 Appli cation Cont rol Layer Modu le 1-6, 2- 11, 2-13, 2- 14, 3-1, 3- 2, 3-4, 4- 19, 4-20[...]

ii • • • • Index GEH-6632 EX21 00 User’s Gu ide De-Exc itation 3-7, 3-11, 4-1, 4- 11 – 4- 13 Crow bar 2-2, 3-6, 3- 7, 3-10, 3-11, 4-1, 4- 14, 4-18 Field Fl ashing 2-1, 2- 9, 3-2, 4- 1, 4-16, 4- 17 Field Grou nd Detect or 2-1, 2-9, 3- 7, 4-1, 4-14, 4-15 Shaft Voltage Su ppressor 2-1, 2- 9, 4-1, 4- 18 De-excitation module 2-2, 2 -8 De-exc[...]

EX2100 User’s G uide GEH-6632 Index • • • • iii G Gate Pulse Amplifiers 2-1, 2-6 Generator Cu rrent Measurement 4-3 Generator Voltage Measurement 4-3 H Hardware Overvi e w 1-1, 1-5 High Voltage Interf ace 2-1, 2-9 HMI Mark VI 2-1 Toolbox 2- 1, 4-20 HMI (see Human Machine In terface) How to Get Help 1-1, 1-8 Human Machin e Interface 1-2, 2[...]

iv • • • • Index GEH-6632 EX2100 User’s G uide T Technical Characteristics 1-1, 1- 6 Thyri te 2-8, 4-18 TMR (see Trip le Modular Redundant) Toolbox (s ee Control Syst em Toolbox) Triple Modul ar Redun dant 2-2, 2-14 U UDH (see Unit Data Highway) UEL (see Under Excitation Limiter) Under Excitation Limiter 2-1, B-2 Unit Data Highway 1-2, 4-[...]

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