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The IS200TREAH1A is an emergency trip terminal board manufactured by General Electric. It belongs to GE's Mark VI gas turbine and steam turbine control system series and is primarily used for industrial automation and module protection.
Hardware-Voted 2oo3 Trip Logic
Multi-Solenoid Drive with Galvanic Isolation
Secure 37-Pin D-Sub & Pluggable Terminal Blocks
The GE Industrial Steam Turbine Control (ISTC) is part of the Mark VI turbine controls. The ISTC provides basic control functions. These functions can then be expanded in small increments for various levels of control, protection, and monitoring for the turbine, the auxiliary systems, and the driven load equipment (generator / compressor / pump). The control module consists of a processor board, communication board, and I/O boards mounted in a single 21-slot (VME type) rack. I/O boards are connected to individual terminal boards by computer-type cables with 37-pin, D-type connectors. The terminal boards have pluggable, barrier-type terminal blocks. I/O and terminal boards can be arranged in various combinations and added in the field for future expansion.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
General Electric IS200TREAH1A Turbine Emergency Trip Terminal Board Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Thermal Power
Instantly drops emergency trip solenoids to stop steam flow during catastrophic shaft overspeed.
Gas Power
Coordinates emergency shutdowns of fuel and air control valves during system trip commands.
Nuclear Power
Provides 2oo3 redundant voting to safely trip the turbine during reactor shutdown without false trips.
Petrochemical
Executes immediate mechanical shutdowns to isolate hazardous hydrocarbons during gas surges.
Oil & Gas
Delivers continuous overspeed protection for aero-derivative driving turbines in remote stations.
Chemical Manufacturing
Shuts down high-pressure process gas streams immediately when pressure safety interlocks are breached.
To ensure plant safety and prevent damage, never attempt to service or hot-swap the IS200TREAH1A board while the turbine is online, as this controls active emergency trip solenoid loops and carries an extreme risk of causing an accidental unit shutdown. Ensure strict hardware alignment when stacking plug-on daughterboards (such as the IS200WREAH1A) onto the 37-pin D-sub interface to maintain 2oo3 voting logic integrity. Always use a low-wattage iron if soldering near terminals to protect internal relay matrices, and secure the module tightly within its vertical frame to block harsh environment-induced ground loops.
The IS200TREAH1A is a Turbine Emergency Trip Terminal Board (TREA) developed by General Electric (GE).
How do you use the IS200TREAH1A terminal board?
The IS200TREAH1A is used as a primary baseboard platform. It is mounted vertically on the side panel or rack of a turbine control enclosure, where it directly terminates field wires coming from critical safety interlocks and emergency stop components.
What is the main function of the IS200TREAH1A in a turbine system?
Its primary role is emergency protection. When the system detects a critical fault (such as dangerous shaft overspeed), the IS200TREAH1A instantly routes the shutdown command to safely de-energize and drop the field trip solenoids, stopping the turbine.
Can the IS200TREAH1A be expanded with other boards?
Yes. The IS200TREAH1A is designed with hardware extensibility. It acts as a baseboard that allows direct plug-on configuration of piggyback daughterboards, such as the IS200WREAH1A aero trip expansion board, to add extra dry contact inputs.
Does the IS200TREAH1A support Triple Modular Redundant (TMR) systems?
Yes. The board features an onboard relay matrix that fully supports Triple Modular Redundant (TMR) control architectures, allowing the safety system to execute reliable hardware-voted commands.
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