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GE IS200TREGH1BDB Mark VI Trip Emergency Termination Board

The GE IS200TREGH1BDB is a Trip Emergency Termination (TREG) board designed for critical safety functions within GE Mark VI turbine control architectures.

It works in conjunction with VPRO protection processors and TRPG terminal boards to manage turbine trip logic. The board provides the positive side of 125 VDC trip circuits, while coordinated boards handle the complementary switching paths.

The module typically contains multiple electromechanical relays (commonly up to 12 depending on configuration) arranged to support voting logic for trip solenoids. This architecture ensures redundant and fail-safe operation, especially in high-risk turbine environments.

In operation, the IS200TREGH1BDB receives control signals from the protection system and routes them through relay networks to activate emergency shutdown solenoids. It is designed with MOV surge protection, high-isolation relay contacts, and diagnostic feedback capability for fault detection.

This board is widely used in power plants where turbine safety, fast response time, and system reliability are critical requirements. 

Model: GE IS200TREGH1BDB
System Compatibility: GE Mark VI / Mark VIe turbine control system
Module Type: Trip Emergency Termination Board (TREG)

Relay & Switching System

• Up to 12 electromechanical relays (configuration dependent)

• 125 VDC trip circuit interface (positive side control)

• Voting logic support for trip solenoids

• High-isolation relay contact design

Protection & Safety Features

• MOV surge suppression components

• Redundant trip signal path architecture

• Fail-safe relay logic behavior

• Designed for emergency shutdown systems (ETS)

Interface & Connectivity

• Connects with VPRO protection processor board

• Works with TRPG / TPRO terminal boards

• Backplane connector system (Mark VI cabinet integration)

Electrical Characteristics

• Relay switching response:<10 ms (typical)

• Industrial DC switching load capability

• High-voltage isolation between control and output circuits

Mechanical Design

• Rugged PCB assembly with industrial components

• High-density relay and terminal layout

• Cabinet-mounted termination board

Environmental Conditions

• Operating Temperature: 0°C to +60°C

• Storage Temperature: -40°C to +85°C

• Humidity: 5%–95% non-condensing

• Designed for high EMI and vibration environments

Diagnostics

• Relay status monitoring (system dependent)

• Fault detection via protection processor

• Board-level identification and configuration recognition

• Dedicated turbine emergency trip termination board

• Supports GE Mark VI protection architecture (VPRO integration)

• Up to 12 relay channels for trip control logic

• High-reliability 125 VDC trip circuit interface

• MOV surge protection for electrical stability

• Voting-based trip control for safety redundancy

• Fast switching response for emergency shutdown

• Rugged industrial-grade design for harsh environments

• Continuous 24/7 operation in critical systems

GE IS200TREGH1BDB is widely used in:

• Gas turbine control systems

• Steam turbine protection systems

• Power generation plants

• Emergency Trip Systems (ETS)

• Industrial distributed control systems (DCS)

• Oil & gas processing facilities

• Compressor protection systems

• High-risk industrial safety automation systems

Q1: What is the function of IS200TREGH1BDB?
A1: It provides emergency trip termination and relay-based shutdown control in turbine systems.

Q2: What systems use this board?
A2: It is used in GE Mark VI and Mark VIe Speedtronic turbine control systems.

Q3: How many relays does it have?
A3: Typically up to 12 electromechanical relays depending on configuration.

Q4: What is its role in safety systems?
A4: It executes emergency shutdown logic in coordination with VPRO protection modules.

Q5: Is it part of a redundant system?
A5: Yes, it supports redundant and voting-based trip architectures.

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