IS200TREGH1B

Overview

The IS200TREGH1B Turbine Emergency Terminal Board is part of GE’s Mark VI Series. It provides emergency trip functionality for gas turbine control systems, supporting overspeed protection and emergency stop operations.

General Information

• Product Type: Turbine Emergency Terminal Board

• Series: Mark VI

• Channels: 6

• Trip Solenoids: 3

• Relays: 12 (9 arranged in 3 voting groups)

Electrical Characteristics

• Power Supplies: 200–250 VAC

• Bus Voltage: 70–145 V DC

• Operating System: QNX

Environmental Characteristics

• Operating Temperature: 0 to 70 °C

Functional Characteristics

• Emergency Trip: Powers 3 solenoids managed by I/O controller

• Board Pairing: Works with TRPG board (negative side) while TREG supplies positive side

• Protection: Provides overspeed and emergency stop functions

• Relay Control: Voting inputs for trip solenoids

Variant Information

• Common Variant: H1B for 125 V DC applications

• Redundant Power: JX1, JY1, JZ1 connectors diode‑combined for feedback circuits and economizing relays

• Isolation: Maintained for trip relay circuits

System Integration

• Compatibility: Works with PPRO module in Mark VI systems

• Connections: Cables with molded plugs between TREG and PPRO

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