GE IS200TREAH1A Turbine Emergency Trip Terminal Board

Parameter
Model: IS200TREAH1A Turbine Emergency Trip Terminal Board
Board backplane: VERSA Module Eurocard (VME) type 
Cabinet: NEMA 1 convection cooled, similar to IP-20 
Operating Temperature: 32 to 113° F (0 to 45°C)
Storage Temperature: -40 to 158° F (-40 to 70°C)
Heat loss Simplex: 700 W TMR: 1000 W 
Humidity: 5 – 95% non-condensing 

Description

The General Electric IS200TREAH1A is a Turbine Emergency Trip (TREA) terminal board used in GE Mark VIe control systems. The board provides the field wiring interface for turbine emergency trip applications and is installed with compatible turbine I/O packs, including the IS220PPROH1A. It handles connections for trip-related field signals, speed inputs, voltage monitoring circuits, and emergency shutdown functions within the control system. The IS200TREAH1A includes customer terminal connections through pluggable barrier terminal blocks and provides interfaces for passive pulse rate inputs used for turbine speed measurement. The board also supports trip output circuits and voltage detection inputs for monitoring the turbine protection trip string. In TMR (Triple Modular Redundant) configurations, signals are distributed through the corresponding I/O pack connections to support redundant protection functions. Used as part of the Mark VIe turbine control architecture, the IS200TREAH1A provides the termination point between field devices and control electronics, allowing emergency trip signals and related protection inputs to be connected and monitored within the turbine control system.

Frequently asked questions

Q:What is the GE IS200TREAH1A used for?
A:The IS200TREAH1A is a Turbine Emergency Trip (TREA) Terminal Board used in GE Mark VIe turbine control systems. It provides the field wiring interface for emergency trip functions and connects with compatible turbine protection I/O modules.

Q:Which GE I/O module is compatible with the IS200TREAH1A?
A:The terminal board is used with the IS220PPRAH1A Emergency Turbine Protection I/O Pack in the Mark VIe control system configuration.

Q:What signals can be connected to the IS200TREAH1A?

A:The board handles connections for turbine protection signals, including speed inputs, voltage detection inputs, emergency stop inputs, and trip output circuits.

Application areas

• Flame Detection and Interlock Management: Routes flame intensity signals from optical flame scanners back to the Mark VI/VIe controllers to trigger an immediate shutdown if a flame-out occurs during high-load operations.
• LNG Plant Refrigerant Compressor Trains: Used within the Mark VIe control panels of massive multi-megawatt turbocompressor strings that liquefy natural gas, safeguarding the mechanical shaft against severe surge conditions and bearing failure.
• Ethylene Plant Charge Gas Compressors: Deployed in large-scale olefin plants where the process driver turbine must be safely tripped if severe mechanical vibration, axial displacement, or low vacuum bounds are broken.

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