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GE IS200BPIIH1A

  • Product Name:​ GE IS200BPIIH1A Bridge Power Interface Board
  • Product Description:​ A Mark VI IS200 series bridge power interface board that serves as a critical signal relay and interface component for bridge inverter systems using Integrated Gate Commutated Thyristors (IGCTs). It distributes 24 gate firing commands and collects 24 gate status feedback signals.
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Detailed content

  • Technical Specifications:
    • Part Number: IS200BPIIH1A
    • Manufacturer: GE Industrial Systems
    • Main Series: Mark VI IS200
    • Subseries: Innovation
    • Gate Firing Commands: 24
    • Gate Status Feedback Signals: 24
    • Associated Backplane: CABP
    • Driver Type: RS‑422
    • LEDs: None
    • Product Manual: GEI‑100298
    • Interface Module: BICI board
    • Connector Slots: Occupies J16 and J21 on the CABP backplane
  • Functional Features:
    • Precise relay of 24 gate firing commands from BICI to two GGXI boards via JGATE connectors
    • Aggregation of 24 gate status feedback signals from GGXI boards back to BICI via backplane P1/P2
    • RS‑422 differential transmission for high‑speed, noise‑immune communication
    • Gate Command ON retention via R‑C time constant circuit (prevents premature IGCT turn‑off)
    • Inner cell (2, 3) minimum ON time extended 5 µs longer than outer cells (1, 4)
    • P160 signal conditioning from DS200GDPA High‑Frequency Power Supply Board
    • Fiber‑optic isolation at GGXI level for high‑voltage isolation
  • Application Scenarios:​ GE Speedtronic Mark VI / Mark VIe turbine control systems, generator exciter cabinets, IGCT‑based high‑power conversion bridges, power plant turbine control.
  • Installation Requirements:
    • Install in Innovation Series standard board rack, occupying J16 and J21 slots on CABP backplane
    • Ensure control rack is fully de‑energized before insertion
    • Align backplane connectors carefully to avoid pin damage
    • Secure via front panel and backplane connectors
  • Usage Notes:
    • Not hot‑swappable; requires controlled system shutdown and LOTO (Lock‑Out/Tag‑Out) procedures
    • Interface with BICI board; coordinated operation with GGXI boards
    • Troubleshooting: Review Mark VI/VIe HMI diagnostic logs for power/bridge communication alarms
    • Verify status via backplane signaling; no onboard LEDs

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