Description
IS200EPSMG2A — GE Exciter Power Supply Module
Technical Specifications
- Product Model: IS200EPSMG2A
- Brand: GE
- Warranty: One Year
- Input Voltage: 125 V DC nominal
- Operating Temperature: -30 °C to +65 °C
- Storage Temperature: -40 °C to +85 °C
- Output Voltages: +5 V DC, ±15 V DC, +24 V DC, Isolated +70 V DC
- Total Output Power: Approx. 150 W
- Efficiency: Typically 85%
- Protection Class: Conformal coated; overcurrent/overvoltage/thermal protection
- Isolation: High-voltage transformer isolation
- Compatibility: GE EX2100 / Mark VIe Excitation Control Systems
- Dimensions: 159 mm × 178 mm
- Weight: Approx. 0.9 kg
Product Overview
The IS200EPSMG2A is a dedicated exciter power supply module for GE EX2100 and Mark VIe turbine/generator excitation control systems. It converts 125 V DC system bus voltage into multiple regulated, isolated outputs that power control logic, analog circuits, field interface, and relay wetting circuits. This solves the challenge of generating stable, noise-free, safety-compliant power within the exciter cabinet—a critical requirement for generator voltage regulation and protection. Power plant and turbine control engineers rely on this module because it integrates directly into standard racks, meets industrial temperature and isolation standards, and consolidates multiple voltage rails in one form factor.
Key Functions
- Multi-Rail Regulated Power Generation: Generates all required voltages from a single 125 V DC input, including isolated +70 V for contact wetting, eliminating external power supplies and simplifying system architecture.
- High-Voltage Isolation and Noise Immunity: Transformer-based isolation separates low-voltage logic from high-voltage field wiring, reducing ground loops and protecting control electronics from transients common in excitation systems.
- Integrated Protection and Monitoring: Built-in overcurrent, short-circuit, thermal, and overvoltage shutdowns help prevent cascading failures; fault status can be used by the host system for diagnostics and rapid replacement planning.
- Rack-Native Integration: Form-fit for EX2100/Mark VIe backplanes with conformal coating, fitting standard EPSM slots and surviving the wide temperature range typical of turbine and generator cabinets.
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