GE IS200TPROH1BBB 

Overview

The GE IS200TPROH1BBB is a Turbine Protection Terminal Board developed by General Electric (GE) for the Mark VI control system. This board functions as a key interface between field devices and the turbine control modules, providing reliable protection signal routing, conditioning, and feedback. Designed for both gas and steam turbine applications, the IS200TPROH1BBB ensures high integrity and precise operation in mission-critical industrial environments.

By managing trip signals, relay contacts, and field feedback, this terminal board contributes to the safe and efficient control of turbine operations, forming an essential part of GE’s advanced turbine protection architecture.

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Main Features

• Direct Integration: Works seamlessly with GE’s Mark VI turbine control system.

• High Signal Integrity: Ensures accurate processing of trip and interlock signals.

• Field Connectivity: Interfaces with sensors, relays, and external protection devices.

• Redundant Capability: Supports redundant turbine protection configurations.

• Built-in Diagnostics: Provides status monitoring and fault identification through system software.

• Rugged Construction: Industrial-grade PCB with protective coating against dust and moisture.

• Easy Replacement: Modular design allows quick installation and maintenance.

  
  

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Applications

The IS200TPROH1BBB is widely used in industrial power and process control systems, including:

• Gas Turbine Control – Supervising trip logic, overspeed detection, and fault relay outputs.

• Steam Turbine Systems – Managing protective shutdowns and interlock feedback.

• Combined Cycle Power Plants – Providing coordinated turbine protection and control.

• Oil & Gas Facilities – Supporting compressor and pump protection systems.

• Process Automation – Handling safety-critical input/output signal conditioning.

Its reliability and diagnostic capabilities make it indispensable for high-availability operations where turbine safety is paramount.

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Technical Specifications

Parameter	Description
Manufacturer	General Electric (GE)
Model Number	IS200TPROH1BBB
Product Type	Turbine Protection Terminal Board
System Compatibility	GE Mark VI Control System
Inputs/Outputs	Multiple trip relay and protection signal I/O
Relay Type	Electromechanical and solid-state compatible
Operating Voltage	24 VDC nominal
Signal Isolation	Galvanic isolation between channels
Mounting Method	Rack or panel mount
Communication Interface	Connected to TRPG or TREG boards via cables
Operating Temperature Range	0°C to +60°C
Storage Temperature Range	-40°C to +85°C
Board Dimensions	Approx. 250 mm × 150 mm
Weight	Around 0.35 kg
Protective Coating	Conformal coating for harsh environments
Certifications	CE, RoHS, UL compliant

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Structure and Design

The IS200TPROH1BBB consists of several key sections designed for optimal performance and protection:

1. Input/Output Terminals – Facilitate field signal connections for trip and relay functions.

2. Relay Interface Section – Handles protective relay actuation and feedback.

3. Signal Conditioning Circuitry – Ensures accurate signal processing and isolation.

4. Connector Interfaces – Ribbon and plug connectors for communication with control modules like TRPG, TRLY, or TREG.

5. Diagnostic LEDs – Provide quick visual feedback on operational status and faults.

The board’s robust layout minimizes noise interference and ensures consistent operation even in high-vibration turbine enclosures.

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Installation and Maintenance

• Installation: Mount the board securely in the turbine control cabinet and connect cables to the designated Mark VI modules according to the GE wiring guide.

• Wiring: Use shielded cables for field signal connections to minimize EMI.

• Startup Check: After installation, verify all relay outputs and trip feedbacks through system diagnostics.

• Maintenance: Periodically clean the board with anti-static tools and inspect for loose terminals.

• Replacement: The IS200TPROH1BBB is designed for plug-and-play replacement, minimizing system downtime.

  
  

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Advantages

• Proven reliability and precision in industrial turbine systems.

• Ensures safe shutdown and fault isolation under abnormal operating conditions.

• Compatible with redundant Mark VI configurations for enhanced safety.

• Designed for long service life and easy field maintenance.

• Supported globally by GE’s technical services and spare parts network.

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Conclusion

The GE IS200TPROH1BBB Turbine Protection Terminal Board exemplifies GE’s engineering excellence in turbine safety and control. With its robust design, comprehensive signal isolation, and seamless Mark VI integration, it offers unmatched reliability and operational safety in critical industrial applications. Whether deployed in power generation, petrochemical operations, or turbine test facilities, the IS200TPROH1BBB provides consistent performance and long-term protection for demanding environments.