GE IS200TRPAH2AHE TRPA Primary Trip Terminal Board

Technical Specifications

Model: IS200TRPAH2AHE

Part Number: IS200TRPAH2AHE，MRP619405

Brand: GE（GE Vernova）

Product Type: TRPA primary trip terminal board

Matching System: GE Speedtronic Mark VI turbine control system, cooperates with PTUR / YTUR trip I/O pack

Power Supply:24VDC system backplane power supply, maximum working voltage 140VDC

Signal Input:Overspeed pulse‑rate sensor input, emergency stop dry/wet contact input

Terminal Block:Dual barrier‑type detachable screw terminal blocks, supporting shield grounding bar

Backplane Connector:Multi‑pin vertical backplane connectors, six D‑shell signal connectors

Isolation:Control circuit and field circuit galvanic isolation, built‑in surge and EMI suppression circuit

Redundancy Mode:Support simplex and TMR triple‑modular redundant system configuration

Diagnostic Indicator:On‑board LED status indicators for trip loop signal monitoring

Coating:H2AHE grade conformal coating for harsh power‑plant environment

Installation:Mark VI VME rack plug‑in installation

Operating Temperature:‑40℃ ~ +70℃, non‑condensing

Protection Class:IP20

Weight:0.85kg

Dimension:330mm ×178mm ×32mm

Compatible System:Gas‑steam turbine, generator unit emergency protection control cabinet

Core Function

TRPA primary trip terminal board for Mark VI turbine control system. It serves as physical termination interface for field overspeed pulse sensors and emergency stop signals. It converts field raw trip signals and transmits them to PTUR or YTUR trip processing packs. Supports TMR triple‑modular redundant voting logic, completes overspeed protection, emergency shutdown and safety interlock signal processing for turbo‑generator unit, guarantees fast and reliable trip response when abnormal working conditions occur.

Product Details 

The IS200TRPAH2AHE (MRP619405) is TRPA series primary trip terminal board for GE Speedtronic Mark VI turbine control system.

This VME rack‑mounted board adopts detachable barrier‑type terminal blocks, convenient for field wiring and later maintenance replacement. It receives pulse‑rate overspeed signals and emergency stop contact signals from on‑site turbine equipment, transmits processed signals to trip I/O packs through multi‑group back‑end connectors. Built‑in surge suppression and electromagnetic interference suppression circuits can effectively filter interference noise introduced by field cables. On‑board LED indicators help maintenance personnel judge trip channel working condition rapidly and locate wiring faults. H2AHE conformal coating enhances moisture‑proof, dust‑proof and anti‑corrosion performance, adapts to severe turbine‑hall environment of power plant.

It can run under simplex and TMR triple‑modular redundant architecture, widely applied in gas‑steam turbo‑generator unit protection control cabinets.

It belongs to safety‑critical spare‑part for Mark VI turbine control system, widely used in overhaul and renovation projects of power generation units.

It is important spare hardware for turbine trip signal loop debugging and defective IS200TRPAH2AHE board replacement.