Description
Overview
The IS200TRPGH1B terminal board is part of the GE Mark VIe protection and turbine control platform. It serves as the primary interface for trip and shutdown functions, forming a critical link between the control system and field trip devices. Designed for high‑integrity turbine protection, the board incorporates redundant relay logic and robust signal handling to ensure dependable operation in mission‑critical environments.
Functional Architecture
The board implements a triple‑modular‑redundant (TMR) relay structure, using nine magnetic relays arranged into three independent voting groups. Each group corresponds to one of the three trip solenoids, allowing the system to validate shutdown commands through a majority‑voting mechanism. This architecture minimizes the risk of nuisance trips while maintaining rapid response during genuine fault conditions.
The IS200TRPGH1B works in conjunction with the TREG module to complete the primary and emergency trip chain for Electrical Trip Devices (ETDs). It also supports signal processing for up to eight Geiger‑Mueller flame detectors, enabling integrated flame monitoring within the turbine protection system.
Design and Construction
The H1B variant features rugged connectors, industrial‑grade components, and a layout optimized for harsh turbine environments. Its mechanical and electrical design supports long‑term reliability in high‑temperature, high‑vibration installations typical of gas and combined‑cycle power plants.
LED indicators provide real‑time status feedback for relay and trip circuits, simplifying diagnostics and maintenance. The board integrates seamlessly with Mark VIe controllers and supports continuous system monitoring through built‑in self‑diagnostics.
Technical Specifications
| Parameter |
Specification |
| Model |
IS200TRPGH1B |
| Product Type |
Primary Trip Terminal Board |
| Brand |
General Electric |
| Product Range |
Mark VIe |
| Relay Architecture |
TMR, 9 magnetic relays |
| Trip Circuits |
3 independent trip solenoids |
| Flame Detector Inputs |
8 Geiger‑Mueller channels |
| Interface Module |
Works with TREG board |
| Indicators |
LED status indicators |
| Weight |
1.42 kg |
| Dimensions |
33 × 17.8 × 5.5 cm |
| HS Code |
8537101190 |
| Minimum Order |
1 unit |
| Origin |
USA |
| Availability |
In stock |
| Lifecycle Status |
Active |
Application Scenarios
-
Gas turbine primary and emergency trip systems
-
Combined‑cycle plant protection architectures
-
High‑reliability TMR‑based shutdown systems
-
Installations requiring validated trip logic and flame detection
FAQ
Q: What makes the H1B version different from simplex variants? A: The H1B uses a full TMR relay structure, whereas simplex versions use single‑path relay logic.
Q: Does the board require a TREG module? A: Yes. The TREG board completes the trip interface and provides coil drive for the relays.
Q: Can the board handle multiple flame detectors? A: It supports up to eight Geiger‑Mueller detectors for integrated flame monitoring.
