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The GE IS200EPSMG1A delivers regulated power to exciter control systems within the Mark VI series. This module converts incoming DC voltage into multiple isolated outputs. Its enhanced version GE IS200EPSMG1AED provides identical electrical specifications with upgraded thermal management.
Technical Specifications
Below are the verified parameters for this exciter power supply module：
| Parameter | GE IS200EPSMG1A | GE IS200EPSMG1AED |
|---|---|---|
| Function | Exciter Power Supply Module | Exciter Power Supply Module |
| Input Voltage | 125V DC nominal（100–150V range） | 125V DC nominal（100–150V range） |
| Output Power | 300W continuous | 300W continuous |
| Output Channels | 5 isolated outputs | 5 isolated outputs |
| Output Voltages | +5V, +15V, -15V, +24V, 48V | +5V, +15V, -15V, +24V, 48V |
| Efficiency | 82% typical | 85% typical |
| Interface | 32-pin backplane connector | 32-pin backplane connector |
| Energy Storage | 4700 µF input capacitor | 6800 µF input capacitor |
| Component Count | 124 components | 118 components |
| Dimensions（L x W x H） | 20.3 cm x 12.7 cm x 5.1 cm | 20.3 cm x 12.7 cm x 5.1 cm |
| Weight | 1.21 kg（2.67 lbs） | 1.19 kg（2.62 lbs） |
| Temperature Range | -40°C to +70°C | -40°C to +70°C |
Reliable Power for Exciter Systems
The GE IS200EPSMG1A supplies all necessary voltages for exciter regulator boards. Each output channel features short-circuit and overcurrent protection. Therefore, this module prevents downstream faults from affecting other outputs. The GE IS200EPSMG1AED improves input filtering for noisy DC bus environments.
Simple Installation in Mark VI Racks
You plug this module directly into the Mark VI power supply slot. The 32-pin backplane connector carries both input power and output distribution. Consequently, the GE IS200EPSMG1A requires no external wiring for basic operation. This design simplifies field replacement during turbine maintenance.
Energy Storage and Hold-Up Time
The GE IS200EPSMG1A stores energy in its input capacitor bank. This 4700 µF capacitance provides 20 ms of hold-up time. Similarly, the GE IS200EPSMG1AED extends this hold-up to 30 ms with its larger 6800 µF capacitor. Hence, both modules keep outputs stable during brief input interruptions.