Description
The GE General Electric IS200EPDMG1B, full assembly number IS200EPDMG1BAA, is an Exciter Power Distribution Module designed for the GE Mark VI / EX2100 excitation control system. The EPDM distributes incoming control power to exciter control, I/O, protection, and related circuits. The module accepts a 125 VDC station-battery supply and can also support up to two 115/120 VAC auxiliary inputs for applicable configurations. Its power-distribution paths incorporate fusing and manual isolation, with front-accessible switches and LED status indicators for monitoring individual supply outputs. The unit is intended for use in compatible GE excitation-control cabinets and is a legacy Mark VI component.
Product Datasheet
| Specification | Details |
|---|---|
| Brand | GE General Electric |
| Model | IS200EPDMG1B |
| Full Part Number | IS200EPDMG1BAA |
| Series | Mark VI IS200 |
| Subseries | EX2100 Excitation Control |
| Product Name | Exciter Power Distribution Module |
| Functional Acronym | EPDM |
| Main Function | Excitation-system power distribution |
| Main DC Input | 125 VDC |
| Auxiliary AC Input | 115/120 VAC, applicable configurations |
| AC Supply Capacity | Up to 2 AC supply inputs |
| Distribution | Control, I/O and protection circuits |
| Protection | Fused distribution and manual isolation |
| User Controls | Individual On/Off switches |
| Status Indication | Green LED power indicators |
| Manual | GEH-6632 |
| Product Status | Legacy / Obsolete |
| Condition | New Surplus Factory Package |
Key Features
- GE Mark VI IS200 Exciter Power Distribution Module
- Full assembly number IS200EPDMG1BAA
- Designed for GE EX2100 excitation control systems
- Accepts 125 VDC station-battery power
- Supports applicable 115/120 VAC auxiliary supply arrangements
- Distributes power to exciter control, I/O, and protection circuits
- Fused power-distribution paths
- Manual isolation through individual switches
- Front-panel LED power-status indication
- Suitable for compatible GE turbine excitation cabinets
- New surplus factory-packaged condition as specified for this listing
Common Questions & Answers
Q: What is the IS200EPDMG1B used for?
A: It is the Exciter Power Distribution Module for compatible GE Mark VI / EX2100 excitation control systems.
Q: What is the full part number?
A: The full assembly number is IS200EPDMG1BAA.
Q: What is the primary DC input?
A: The EPDM is designed around a 125 VDC station-battery supply.
Q: Can the module use AC power?
A: Applicable configurations can accept up to two auxiliary AC supply inputs, generally specified around 115/120 VAC.
Q: What does the EPDM distribute power to?
A: It distributes power for compatible exciter control, I/O, protection, and associated circuits within the EX2100 system.
Q: Does the module have status indicators?
A: Yes. The assembly uses LED indicators to provide visual power-status information, together with manual switching/isolation functions.
Troubleshooting & Safety
The EPDM handles potentially hazardous DC and AC control power. De-energize and isolate all applicable power sources before installation, removal, wiring, or inspection. Follow site lockout/tagout procedures and verify the absence of hazardous voltage with properly rated test equipment.
Before replacement, confirm IS200EPDMG1B / IS200EPDMG1BAA, hardware revision, cabinet configuration, and supply arrangement. Inspect terminals, fuses, switches, connectors, LEDs, and the PCB for damage or contamination. Record the original switch and wiring configuration before disconnecting the existing module.
After installation, verify input polarity, AC/DC supply connections, fuse ratings, and output distribution before energizing the system. Check the LED indicators and EX2100 diagnostics after startup. Do not bypass fuses or change protection components to values different from the approved system configuration.
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