GE IS200TRPGH1B Primary Trip Termination Board

Product Description

GE IS200TRPGH1B is the Primary Trip Termination Board (TRPG) for GE Mark VI Speedtronic gas turbine control system, a critical interface board for turbine emergency protection circuits. It incorporates nine magnetic relays forming a 2-out-of-3 voting circuit to drive 3 Electrical Trip Devices (ETD solenoids). It also accepts input signals from up to 8 Geiger-Mueller flame detectors for flame status monitoring. Working together with the matching TREG board, TRPG forms the primary trip interface. It receives trip commands from Mark VI controller and rapidly cuts off fuel supply to perform unit emergency shutdown upon protection activation. The board integrates terminal blocks, relay voting circuits and MOV surge suppression, rack pluggable installation. OEM production discontinued; it is supplied as spare parts for legacy gas turbine power plant BMS and ESD protection systems.

Technical Parameters

• Model: IS200TRPGH1B
• Type: Primary Trip Termination Board
• Compatible System: GE Mark VI Speedtronic Gas Turbine Control System
• Trip Solenoids: 3 ETD channels, 125VDC rated
• Flame Detector Input: 8 GM flame detectors, 335VDC detector supply
• Voting Logic: 9 magnetic relays for 2oo3 (2-out-of-3) voting
• Surge Suppression: Metal oxide varistor (MOV)
• Relay Coil Supply: 28V
• Mounting: Rack pluggable termination board
• Features: 2oo3 safety voting, flame signal acquisition, emergency trip drive, circuit surge protection
• Operating Temperature: -20℃ ~ +70℃
• Product Status: OEM EOL, industrial spare part

Product Applications

1. ESD emergency shutdown protection loop for gas turbine Mark VI control system, driving ETD trip solenoids for fuel cut-off.
2. BMS burner management system, collecting signals from 8 flame detectors for flame presence supervision.
3. Triple redundant protection logic for combined-cycle gas turbines; 2oo3 voting to avoid false trip or fail-to-trip.
4. Signal interface and terminal transition between turbine protection controller and field trip actuators.
5. Maintenance, spare parts replacement and protection circuit retrofitting of legacy Mark VI gas turbine control cabinets.

Series Models

• IS200TRPGH1B: Primary trip termination board (TRPG), standard for Mark VI
• IS200TREGH1B: Auxiliary trip termination board (TREG), paired with TRPG
• IS200TRLYH1B: General relay output termination board
• IS200TPROH1B: Protection relay board