Overview
The GE IS200TREGH1B, also identified by the base model IS200TREGH1B, is a Trip Emergency Termination Board for the GE Mark VI SPEEDTRONIC turbine control system. It provides termination interfaces for emergency trip circuits, with connections associated with three trip solenoids. The board operates within the turbine protection hardware architecture, where electrical signal routing and termination support the execution of turbine trip commands.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IS200TREGH1B |
| Brand | General Electric (GE) |
| Series | Mark VI SPEEDTRONIC |
| Product Type | Trip Emergency Termination Board |
| Origin | USA |
| Weight | 2 kg |
| Dimensions | 33 x 17.8 x 5.5 cm (estimated shipping size) |
| Operating Temp | 0 to 70 deg C |
| Power Supply | 200-250 VAC (as provided; verify against the applicable hardware documentation) |
| Bus Voltage | 70 to 145 VDC (as provided; verify the measurement reference and circuit application) |
| Number of Channels | 6 |
| Number of Trip Solenoids | 3 |
| Tariff Code | 8537101190 |
Turbine Trip Circuit Interface
The IS200TREGH1B serves as a termination component in the Mark VI turbine emergency trip system. Its stated six-channel configuration and three trip solenoid connections define the supplied interface information. However, the exact channel assignment, terminal pinout, circuit topology, and solenoid drive characteristics require confirmation from the applicable GE hardware documentation.
The listed bus voltage and power supply must be evaluated against the correct circuit references before field wiring or replacement. Do not assume that the stated AC supply and DC bus voltage apply to the same circuit or represent direct board input ratings.
For integration with the turbine protection system, verify terminal designations, wiring polarity, grounding requirements, and trip circuit continuity against the site-specific drawings and the relevant GE manual.
Frequently Asked Questions
Q: How many trip solenoids are associated with the IS200TREGH1B?
A: The supplied specifications identify three trip solenoids. Confirm the individual terminal assignments and wiring arrangement using the applicable GE Mark VI documentation.
Q: What operating temperature range is specified for this board?
A: The supplied data lists an operating temperature range of 0 to 70 deg C. Confirm the applicable environmental limits in the manufacturer’s documentation before installation.
Q: Can the IS200TREGH1B be replaced while the turbine control system is energized?
A: Hot-swap capability is not established by the supplied specifications. Follow the approved shutdown, isolation, and replacement procedure for the specific Mark VI cabinet and trip circuit.
Field Installation Guidelines
- Verify the hardware: Check the complete model number, board revision, connectors, and terminal markings against the existing installation drawings.
- Isolate the circuit: Apply the approved electrical isolation and lockout procedures before removing or installing the board.
- Inspect the mounting location: Check the board supports, connectors, and mating interfaces for mechanical damage, contamination, or loose connections.
- Verify wiring: Confirm terminal assignments, polarity, conductor identification, and circuit voltage using the applicable GE drawings. Do not infer pin assignments from the model number.
- Separate signal wiring: Route trip circuit conductors according to the cabinet wiring design. Maintain separation from high-noise power conductors where specified by the installation documentation.
- Check grounding: Follow the cabinet grounding and shielding scheme. Do not connect signal shields to arbitrary terminals.
- Perform functional checks: After installation, verify wiring continuity and execute the approved trip circuit checks before returning the equipment to service.
