GE EX2100 - Manual

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EX2100 User’s Guide GEH-6632 Contents •••• i Contents Chapter 1 Equipment Overview 1-1 Introduction ............................................................................................................................ 1-1System Overview ...........................................................

ii •••• Contents GEH-6632 EX2100 User’s Guide Chapter 3 Printed Wiring Boards Overview 3-1 Introduction ............................................................................................................................ 3-1Control Boards ........................................................

EX2100 User’s Guide GEH-6632 Contents •••• iii Changing Display Units ........................................................................................... 5-7Adjusting Display Contrast ...................................................................................... 5-7 Status Screen ......

iv •••• Contents GEH-6632 EX2100 User’s Guide Notes

EX2100 User’s Guide GEH-6632 Chapter 1 Equipment Overview •••• 1-1 Chapter 1 Equipment Overview Introduction The EX2100 ä Excitation Control (EX2100 or exciter) produces the field excitation current to control generator ac terminal voltage and/or the reactive volt-amperes. It isa full static excitat...

1-2 •••• Chapter 1 Equipment Overview GEH-6632 EX2100 User’s Guide System Overview The exciter is a flexible modular system that can be assembled to provide a range ofavailable output currents and several levels of system redundancy. These optionsinclude power from a potential, compound, or auxiliar...

EX2100 User’s Guide GEH-6632 Chapter 1 Equipment Overview •••• 1-5 Hardware Overview The EX2100 hardware is contained in three cabinets as follows: • control cabinet for the control, communication, and I/O boards • auxiliary cabinet for field flashing and protection circuits such as de-excitationand...

1-6 •••• Chapter 1 Equipment Overview GEH-6632 EX2100 User’s Guide Software Overview Microprocessor-based controllers (ACLA and DSPX) execute the exciter controlcode. The software consists of modules (blocks) combined to create the requiredsystem functionality. Block definitions and configuration pa...

1-8 •••• Chapter 1 Equipment Overview GEH-6632 EX2100 User’s Guide How to Get Help “+” indicates theinternational access coderequired when calling fromoutside of the USA. If help is needed beyond the instructions provided in the drive systemdocumentation, contact GE as follows: GE Industrial Systems...

EX2100 User’s Guide GEH-6632 Chapter 2 Functional Description •••• 2-1 Chapter 2 Functional Description Introduction This chapter describes the function of the EX2100 static exciter and the individualcontrol and protection circuits. Power supplies and the distribution of power is alsocovered. The fu...

2-2 •••• Chapter 2 Functional Description GEH-6632 EX2100 User’s Guide Exciter Hardware The EX2100 exciter consists of the following basic components. • Power Conversion Module (PCM) and cooling fans • Power potential transformer (PPT) (mounted separate from exciter) • Line-to-line filters • Shaft v...

EX2100 User’s Guide GEH-6632 Chapter 2 Functional Description •••• 2-3 Exciter Configurations EX2100 Exciters can be supplied with single or redundant control, and with single orredundant bridges. Variations of the single control type are shown in Figure 2-1. Simplex Control with Parallel PCMs Contr...

EX2100 User’s Guide GEH-6632 Chapter 2 Functional Description •••• 2-5 Power Conversion Cabinet The Power Conversion cabinet contains the Power Conversion Module (PCM), theExciter Gate Pulse Amplifier (EGPA) board, ac circuit breaker, and the dc circuitcontactor. Three-phase power for the PCM comes ...

2-6 •••• Chapter 2 Functional Description GEH-6632 EX2100 User’s Guide Current Shunt EDCF provides dc currentand voltage feedback A dc shunt provides the bridge output current feedback signal. The mV output signalis input to a differential amplifier on the EDCF board. The amplifier output voltagecon...

EX2100 User’s Guide GEH-6632 Chapter 2 Functional Description •••• 2-7 Cooling Fan Assembly The SCR bridge assembly is cooled with forced air. From two to six overhead fansare used, depending on the bridge rating and redundancy requirements. The fans arepowered by single-phase 115 V ac supplied by t...

2-8 •••• Chapter 2 Functional Description GEH-6632 EX2100 User’s Guide Auxiliary Cabinet The auxiliary cabinet is located next to the power conversion cabinet and containsmodules to protect the generator and provide startup dc power. Modules for filteringthe incoming ac power, for de-excitation, sha...

EX2100 User’s Guide GEH-6632 Chapter 2 Functional Description •••• 2-9 Shaft Voltage Suppressor The Shaft Voltage Suppressorprotects the shaft bearings. Excitation systems, which produce a dc voltage from ac through a solid staterectification process, produce ripple and spike voltages at the exciter...

2-10 •••• Chapter 2 Functional Description GEH-6632 EX2100 User’s Guide Control Cabinet The control cabinet contains the keypad control rack, control power distributionmodule and supplies, and I/O terminal boards. Diagnostic Interface (Keypad) A second keypad is providedfor redundant controls. The k...

EX2100 User’s Guide GEH-6632 Chapter 2 Functional Description •••• 2-11 Control Module The control module is a VME-style rack with boards cable connected to the I/Oterminal boards. This rack is divided into three independently powered sections forthe M1, M2, and C controllers. Each controller consis...

2-12 •••• Chapter 2 Functional Description GEH-6632 EX2100 User’s Guide Simplex Control System The interconnections between the simplex control and the terminal boards,generator protection modules, and power supply are shown in Figure 2-5. Only oneEPSM power supply is used but this can have both ac ...

EX2100 User’s Guide GEH-6632 Chapter 2 Functional Description •••• 2-13 Redundant Control System A redundant control system has three controllers and three redundant power supplies,one for each controller. The power supply rack also holds three ground detectormodules. Figure 2-6 shows three EDCF boa...

2-14 •••• Chapter 2 Functional Description GEH-6632 EX2100 User’s Guide Controller C Controller C is only used with redundant systems. It is mounted in the control rackand is physically similar to the M1 and M2 controllers, however, C is not responsiblefor bridge firing and therefore does not contai...

EX2100 User’s Guide GEH-6632 Chapter 2 Functional Description •••• 2-17 Exciter Software The exciter software is configured and loaded from the toolbox, and resides in thecontrollers. The software is represented on the toolbox screen by control blockslinked together to show the signal flow. Figure 2...

2-20 •••• Chapter 2 Functional Description GEH-6632 EX2100 User’s Guide Auto Reference – AUTO REF The AUTOREF block generates an auto (or Auto Control (AC)) setpoint for theAutomatic Voltage Regulator (AVR) based on user-supplied parameters andconditions. Raise/lower inputs to AUTO REF come in from ...

EX2100 User’s Guide GEH-6632 Chapter 2 Functional Description •••• 2-21 Proportional Gain Anti- windup PresetValue Σ + + Positive Limit Negative Limit 1 s Σ + - Σ + - a>b? ab 0.05 S R Q Output Value Tracking Gain r/s AVRSetpoint AVR Status Integral Gain Tracking Control Preset State IntegratorTra...

2-22 •••• Chapter 2 Functional Description GEH-6632 EX2100 User’s Guide voltage regulator loop such as compound exciters and some high ceiling exciters, theFVR uses a setpoint from either the AVR or the MANUAL REF block, and isalways operational whether in manual or automatic operation. The Field Cu...

EX2100 User’s Guide GEH-6632 Chapter 2 Functional Description •••• 2-23 Operator Interface The HMI contains exciter andturbine graphic displays. Operator and engineering work stations such as the HMI (Human Machine Interface)and the toolbox communicate with the exciter. This allows operator monitori...

3-2 •••• Chapter 3 Printed Wiring Boards Overview GEH-6632 EX2100 User’s Guide Control Boards The control boards are located in the control module. This module consists of theexciter backplane (EBKP) and the metal chassis that holds the boards (refer to Figure3-1). The control boards are as follows:...

3-4 •••• Chapter 3 Printed Wiring Boards Overview GEH-6632 EX2100 User’s Guide ACLA Board ACLA handles networkcommunications and outerloop functions. The ACLA board is a double-slot, 3U high module located next to the DSPX. ACLAprovides Ethernet communications with the turbine control, LCI, and HMI,...

EX2100 User’s Guide GEH-6632 Chapter 3 Printed Wiring Boards Overview •••• 3-5 I/O Terminal Boards The exciter terminal boards are as follows: • IS200EPCT Exciter PT/CT board (EPCT) • IS200ECTB Exciter Contact Terminal Board (ECTB) • IS200EXTB Exciter Terminal Board (EXTB) • IS200EDCF Exciter Dc Fee...

3-6 •••• Chapter 3 Printed Wiring Boards Overview GEH-6632 EX2100 User’s Guide EDCF Board EDCF handles bridge dcvoltage and current feedback. The EDCF board measures field current and field voltage at the SCR bridge, andinterfaces to the EISB board in the control panel over a high-speed fiber-optic ...

EX2100 User’s Guide GEH-6632 Chapter 3 Printed Wiring Boards Overview •••• 3-7 Bridge and Protection Boards and Modules The exciter bridge and protection boards are as follows: • IS200EGPA Exciter Gate Pulse Amplifier board (EGPA) • IS200EXCS Conduction Sensor board (EXCS) • IS200EDEX Exciter De-Exc...

3-8 •••• Chapter 3 Printed Wiring Boards Overview GEH-6632 EX2100 User’s Guide In a redundant system, the set of three EGDM boards are configured as a Controller(C), Master 1 (M1) and Master 2 (M2). The configuration for each EGDM iscontrolled by a set of program pins on the P2 connector. The C cont...

EX2100 User’s Guide GEH-6632 Chapter 3 Printed Wiring Boards Overview •••• 3-9 Power Supply Boards The exciter power supply boards are as follows: • IS200EPDM Exciter Power Distribution Module (EPDM) • IS200EPBP Exciter Power Backplane (EPBP) • IS200EPSM Exciter Power Supply Module (EPSM) • DACA Mod...

3-10 •••• Chapter 3 Printed Wiring Boards Overview GEH-6632 EX2100 User’s Guide 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 EDEXCROWBAR J20 M1 J15M1 J14M1 J13M1 J12M1 P101 P 201 P 105 P 205 FAN EXTB EETB EDEX ECTB M2 J602 CONTR...

EX2100 User’s Guide GEH-6632 Chapter 3 Printed Wiring Boards Overview •••• 3-11 Related Board Publications For a more detailed description of each board's circuitry and application data, refer tothe following documents: • GEI-100460 IS200EBKP Exciter Backplane • GEI-100267 IS200DSPX Digital Signal P...

4-2 •••• Chapter 4 Terminal Board I/O and Equipment Connections GEH-6632 EX2100 User’s Guide Power Connections and Analog I/O Figure 4-1 displays a typical connection diagram of the common power and analogI/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 PRIVAC :1...

EX2100 User’s Guide GEH-6632 Chapter 4 Terminal Board I/O and Equipment Connections •••• 4-3 Power Potential Transformer Inputs In the EX2100 excitation system, a 3-phase source of ac power is converted to acontrolled dc output. This ac input can be from one of several sources. Mostcommon is a gener...

4-6 •••• Chapter 4 Terminal Board I/O and Equipment Connections GEH-6632 EX2100 User’s Guide Power Supply Inputs The customer’s ac and dc power inputs are wired to the exciter’s Power DistributionModule (EPDM), which is located on the left hand side of the exciter powerbackplane rack. Figure 4-3 sho...

EX2100 User’s Guide GEH-6632 Chapter 4 Terminal Board I/O and Equipment Connections •••• 4-7 Line Filter Connections The 600 V filter is connected to fuse board LFU1. The 1000 V filter has two filtercircuits and is connected to fuse boards LFU1 and LFU2. The filters are located atthe top of the auxi...

4-8 •••• Chapter 4 Terminal Board I/O and Equipment Connections GEH-6632 EX2100 User’s Guide Exciter Internal I/O Exciter AC Feedback The EACF board measures the exciter ac supply voltage and current. The terminalboard contains transformers for a 3-phase voltage measurement, and terminals fortwo flu...

EX2100 User’s Guide GEH-6632 Chapter 4 Terminal Board I/O and Equipment Connections •••• 4-9 Field Current Feedback The field current is measured across a dc shunt at the SCR bridge. This generates anominal 100 mV signal, which is input to a differential amplifier. The output voltagefrom the amplifi...

4-16 •••• Chapter 4 Terminal Board I/O and Equipment Connections GEH-6632 EX2100 User’s Guide Field Flashing The station battery is used toinitiate the field current. Anauxiliary ac source can alsobe used. Field flashing relays 53A and 53B are controlled from drivers on the EMIO board,through pilot ...

EX2100 User’s Guide GEH-6632 Chapter 4 Terminal Board I/O and Equipment Connections •••• 4-19 Data Highway Connections The Data Highway integratesseveral different singlecontrol systems. The EX2100 exciter communicates over the same data highway as the Mark VIturbine control and the HMI. A typical e...

4-20 •••• Chapter 4 Terminal Board I/O and Equipment Connections GEH-6632 EX2100 User’s Guide Control System Toolbox Connection The toolbox connector on the exciter backplane supports an RS-232C cable, whichconnects an external computer to the DSPX board. This connection is formaintenance purposes. ...

EX2100 User’s Guide GEH-6632 Chapter 5 Diagnostic Interface-Keypad •••• 5-1 Chapter 5 Diagnostic Interface-Keypad Introduction This chapter provides operating guidelines for the Diagnostic Interface, morecommonly called the keypad. The keypad is a door-mounted, local control unit that enables you to...

5-2 •••• Chapter 5 Diagnostic Interface-Keypad GEH-6632 EX2100 User’s Guide Using the Pushbuttons The keypad includes membrane-type pushbuttons to access exciter values and tocontrol the exciter. Tables 5-1 and 5-2 define the pushbutton functions for menunavigation and exciter control (see Figure 5-...

EX2100 User’s Guide GEH-6632 Chapter 5 Diagnostic Interface-Keypad •••• 5-5 Reading the Display The keypad displays information as both text and animated graphics. There are twotypes of content screens, selected by pressing the corresponding Navigation button:Status and Menu. The Status Screen (Figu...

EX2100 User’s Guide GEH-6632 Chapter 5 Diagnostic Interface-Keypad •••• 5-7 Changing Display Units Ø To change the type of measurement units displayed 1. From the Main Menu, select General Setup . 2. Select Display Units . 3. Select the display units parameter to edit it (see below). 4. Highlight, t...

5-8 •••• Chapter 5 Diagnostic Interface-Keypad GEH-6632 EX2100 User’s Guide Status Screen The Status screen displays up to eight variables (parameters). The first two parameters are displayed both in text and animated meters. Table 5-4 defines thecharacteristics of the bar graphs for these parameter...

EX2100 User’s Guide GEH-6632 Chapter 5 Diagnostic Interface-Keypad •••• 5-9 Using the Menus The keypad’s Main Menu leads to other menu screens, where data can be reviewedand modified. The Main Menu can be accessed from any screen, as follows: • If already in a Menu screen, press the Menu button. • I...

5-10 •••• Chapter 5 Diagnostic Interface-Keypad GEH-6632 EX2100 User’s Guide 2. To view detail on a particular fault, select that fault (listed on the Active Fault Display screen). The following screen displays. SELECTED FAULT - PRESS Low AC V, B 006:40:11.008 Low AC input volts detected onthe field...

EX2100 User’s Guide GEH-6632 Chapter 5 Diagnostic Interface-Keypad •••• 5-11 2. For an Option parameter: a. Use the Up or Down Arrow buttons to select a new parameter value. b. Press the Enter button to accept the change or Escape to exit and keep the present value. Press ENTER to accept, ESC to lea...

EX2100 User’s Guide GEH-6632 Chapter 5 Diagnostic Interface-Keypad •••• 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. General Setup 2. Firmware Version & Hardware Info 3. Display Firmware Version The followi...

5-14 •••• Chapter 5 Diagnostic Interface-Keypad GEH-6632 EX2100 User’s Guide Protecting the Keypad To protect the exciter from unauthorized operation or reconfiguration, the keypadincludes two security controls , Password and Privilege Level. The Password is a 5-digit number that protects the Passwo...

EX2100 User’s Guide GEH-6632 Appendix A Warranty and Renewal Parts •••• A-1 Appendix A Warranty and RenewalParts Introduction When ordering a replacement part for a GE exciter, the customer needs to know: • How to accurately identify the part • If the part is under warranty • How to place the order ...

A-2 •••• Appendix A Warranty and Renewal Parts GEH-6632 EX2100 User’s Guide Identifying the Part An exciter component, or part, is identified by its assigned part number and description . The part number is normally found on a nameplate on the component. The description is included in the system ren...

EX2100 User’s Guide GEH-6632 Appendix A Warranty and Renewal Parts •••• A-3 Order Specific Assemblies These parts make up the particular exciter. Other items obtained specifically for theorder may also use a similar part number structure, which provides information aboutthe equipment. Unit & seq...

A-4 •••• Appendix A Warranty and Renewal Parts GEH-6632 EX2100 User’s Guide Printed Wiring Boards A printed wiring board is identified by an alphanumeric part (catalog) numberstamped near its edge. The structure of a board’s part number is described below. Note All digits are important when ordering...

EX2100 User’s Guide GEH-6632 Appendix A Warranty and Renewal Parts •••• A-5 How to Order Parts Parts still under warranty may be obtained directly from the factory: (“+” indicates theinternational access coderequired when calling fromoutside of the USA.) GE Industrial SystemsProduct Service Engineer...

EX2100 User’s Guide GEH-6632 Glossary of Terms •••• i Glossary of Terms 6U Full height Versa Module Eurocard (VME) board application code Software that controls the machine or process, specific to the application. ASCII American Standard Code for Information Interchange. An 8-bit code used for data....

vi •••• Glossary of Terms GEH-6632 EX2100 User’s Guide Modbus A serial communication protocol developed by Modicon for use between PLCs andother computers. multiple bridges Several power producing bridges operate in parallel to produce a high field current.These share the exciter current load to pro...

EX2100 User’s Guide GEH-6632 Glossary of Terms •••• ix toolbox A Windows NT -based software package used to configure the EX2100 and Mark VIturbine controller. under-excitation limit (UEL) UEL software functions to prevent generator over-heating caused by underexcitation. unit data highway (UDH) Con...

EX2100 User’s Guide GEH-6632 Index •••• i Index A ac disconnect 1-5, 2-5Ac Line-to-Line Filters 2-1, 2-8Ac to Dc Converter 1-6, 2-14, 3-1, 3-9, 3-11, B-1ACLA (see Application Control Layer Module)Analog I/O 4-1, 4-2Analog Input 4-1, 4-3Application Control Layer Module 1-6, 2-11, 2-13, 2- 14, 3-1, 3-...