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GE IS200EXHSG4A
Product Name: EX2100 Exciter High-Speed Relay Driver & Sensing Terminal Board
Product Introduction: The GE IS200EXHSG4A is a high-speed relay driver and sensing terminal board belonging to GE’s EX2100 excitation control system. It serves as the core interface for the EX2100 exciter cabinet, performing signal isolation, amplification, and monitoring between the generator exciter transformer, SCR/IGCT power bridge, and the main controller.
Detailed content
Technical Specifications:
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Relay Outputs: 9× solid-state relays, 3 A/250 V, action time ≤ 1 ms
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Hall Sensors: 2 channels (E1/E2), ±200 A / ±1200 V, 0–10 V output
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Sampling Accuracy: 12-bit Σ-Δ ADC, 1 kHz bandwidth
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Isolation Voltage: 2.5 kV RMS (signal to power ground)
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Status Indicators: 9× LEDs (relays), 2× LEDs (Hall), 1× MOV loss indicator
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Test Points: 35 J1 signal loops, 12 power test loops
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Operating Temperature: -30 °C to +65 °C
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Dimensions: 292 mm × 102 mm × 45 mm
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Weight: ≈ 0.9 kg
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Certifications: CE, UL 508, ABS
Key Features: Millisecond-level response: solid-state relays replace traditional contactor coils with pick-up/release time ≤ 1 ms, meeting the speed requirements for generator de-excitation, exciter switching, and grid fault conditions; high-precision sensing: Hall elements with non-contact measurement, linearity ±0.5%, MTBF ≥ 280,000 hours.
Application Scenarios: Widely used in 25 MW–500 MW heavy-duty gas turbines, combined-cycle units, and nuclear power conventional islands as the core interface of EX2100 exciter cabinets. Also applied in refinery and chemical fields for large centrifugal compressors, hydrogen circulators, and ethylene triplex machines; standard configuration in LNG liquefaction, long-distance pipeline compressor stations, and offshore FPSO vessels.
Installation & Maintenance: Confirm cabinet power-off and voltage verification before installation, DC bus insulation ≥ 2 MΩ, avoid leaving tools causing short circuits; confirm dead-band parameters match SCR specifications before power-on; after initial power-on, observe for 5 minutes confirming 11 LEDs green steady, no abnormal temperature rise before putting into operation.
