GE IS200TREGH1BEC TREG Turbine Emergency Trip Positive Terminal Board Mark VI VIe VPRO Overspeed Protection

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    • Product Code: IS200TREGH1BEC
    • Availability: In Stock
    GE IS200TREGH1BEC TREG Turbine Emergency Trip Positive Terminal Board Mark VI / VIe VPRO Overspeed Protection
    Manufacturer: GE Gas Power Speedtronic
    Model: IS200TREGH1BEC (TREG Rev EC)
    Matching Hardware: TRPG negative trip board, VPRO overspeed protection PCB
    Compatible Platform: Mark VI / Mark VIe VME turbine rack, independent VPRO hard trip protection system
    Type: Hot-swappable TMR 2-out-of-3 voting trip relay terminal board, 125VDC positive power supply for trip solenoids
    Core Function: 12 on-board relays (9 voting relays for 3 trip solenoids), 125VDC trip positive distribution, independent hardware overspeed trip, full trip circuit self-diagnosis, field trip wiring hub
    1. Product Overview
    IS200TREGH1BEC (TREG) is a critical safety terminal board for GE Mark VI/VIe turbine independent VPRO emergency overspeed protection system, must be paired with TRPG negative trip board to form complete 125VDC trip solenoid power circuit. It integrates 12 sealed power relays, among which 9 relays form three independent 2/3 voting groups to control three sets of emergency trip solenoids, effectively preventing single relay failure from causing false trip or fail-to-trip. The board supplies the positive 125VDC side of trip power, while TRPG provides negative polarity. The protection logic runs completely on hardware relays, separated from the main DSPX control CPU; overspeed, local emergency stop and flame loss signals directly trigger relay voting action without relying on software operation, meeting SIL safety protection requirements for power generation units. Front terminal blocks centralize all field trip wiring; rear high-density connectors communicate with VPRO overspeed board and rack backplane to upload trip circuit fault and status data to operator HMI. Conformal coated PCB supports wide temperature, high vibration turbine cabinet environments, hot-swap design allows online replacement without system shutdown. GE discontinued original new production, only refurbished and surplus spare parts available aftermarket.
    2. Full Technical Specifications
    • On-board Relays: Total 12 sealed power relays; 9 voting relays (3 groups ×3), 3 auxiliary feedback relays
    • Voting Logic: 2-out-of-3 hardware voting per trip channel
    • Trip Power Voltage: 125VDC positive distribution (TRPG supplies negative)
    • Supported Trip Solenoids: 3 independent emergency trip solenoid circuits
    • Isolation: Trip power circuit isolated from rack control logic circuit
    • Backplane Interface: Special cable connector for VPRO overspeed board communication
    • Hot Swap Support: Yes, online replacement without rack power cut
    • Diagnostic Indicators: Multi-color front LEDs for power, relay fault, trip circuit open/short
    • Rack Supply: 125VDC / 24VDC from VME backplane
    • Typical Power Consumption: ~9.2W
    • Operating Temperature: -30℃ ~ +65℃ ventilated turbine safety cabinet
    • Humidity Range: 5% ~ 95% RH non-condensing
    • Mechanical Size: 330.2mm L × 177.8mm W single-width IS200 VME slot card
    • Weight: ~0.9kg (2lb)
    • Certifications: CE, UL, SIL capable for power generation safety protection
    3. On-board Hardware Layout
    1. Front panel: Multi-status LED indicators, large barrier terminal blocks for trip solenoid & E-stop wiring
    2. 12 sealed industrial power relays (9 voting + 3 auxiliary feedback)
    3. Diode redundant 125VDC power distribution & isolation circuit for trip positive rail
    4. Signal conditioning circuit for trip circuit fault detection & status feedback
    5. Rear dedicated cable connectors for VPRO overspeed board interconnection
    6. Conformal coated PCB with test points for on-site trip loop troubleshooting
    4. System Hardware Matching Chain
    • IS200TREGH1BEC (TREG): Trip positive power & voting relay board (mandatory pair with TRPG)
    • IS200TRPGxxx (TRPG): Trip negative power supply terminal board
    • VPRO Overspeed PCB: Independent hardware overspeed signal source for trip trigger
    • IS200DSPXH1DBD (DSPX): Mark VI main control CPU, receives trip status via ISBus
    • Field devices: 3 sets of emergency trip solenoids, local E-stop pushbuttons, speed probes
    • Full safety chain: Overspeed/E-stop hard signal → VPRO → TREG 2/3 voting relays → 125VDC positive + TRPG negative → Trip solenoid energize/de-energize to trip turbine
    • Platform Separation: Cannot be inserted into Mark V, Honeywell System57, Emerson Ovation racks; exclusive Mark VI/VIe VPRO safety hardware
    5. Typical Industrial Application Scenarios
    • Combined-cycle gas turbine Mark VI TMR rack: Independent hardware overspeed & emergency stop hard trip protection
    • Coal-fired steam turbine unit: Triple redundant trip solenoid safety circuit for main turbine protection
    • Industrial cogeneration gas turbine: Local emergency pushbutton, flame loss hard trip interlock execution
    • Waste heat recovery turbine: SIL-grade independent safety protection separated from main control software
    GE Gas Power © IS200TREGH1BEC TREG Emergency Trip Terminal Board Mark VI / VIe VPRO Overspeed Safety System


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