Description
🔹 Product Introduction
The GE IS200TREGH1BDB is a Turbine Emergency Trip (TREG) Terminal Board used in GE Mark VI turbine control systems. It is designed to interface the turbine control and protection system with emergency trip solenoids and associated trip-interlock circuits.
The TREG board provides the positive DC side of the power circuit for up to three emergency trip solenoids and works with the corresponding TRPG terminal board. In Mark VI systems, the TREG interfaces with the protection/control module through molded-plug cables.
The IS200TREGH1BDB is identified as the H1B TREG board ordering configuration, with DB representing the specific board revision/configuration suffix. It is intended for turbine emergency protection applications where reliable trip signal distribution and monitoring are required.
⚙️ Technical Datasheet
| Parameter | Specification |
|---|---|
| Brand | General Electric (GE) |
| Model | IS200TREGH1BDB |
| Series | Mark VI |
| Product Name | Turbine Emergency Trip Terminal Board |
| Board Type | TREG Terminal Board |
| Ordering Information | IS200TREGH1B |
| Trip Solenoid Capacity | Up to 3 |
| Terminal Blocks | 2 |
| Control Interface | Molded-plug cable connection |
| Operating Temperature | 0 to 60°C |
| Dimensions | Approx. 7.0 × 13.0 in |
| Weight | Approx. 0.8–1.0 kg |
| Condition / Status | Used / Pre-Owned |
| Country of Origin | USA |
🧩 Key Features
- GE Mark VI turbine control terminal board
- TREG emergency trip interface
- Supports up to three emergency trip solenoids
- Provides the positive DC side of the solenoid circuits
- Works together with the TRPG terminal board
- Supports emergency stop and turbine protection functions
- Provides trip-interlock input connections
- Includes diagnostic and feedback circuits for trip-system monitoring
- Compatible with GE turbine control cabinet architectures
🔌 System Integration
The TREG board is an important interface between the turbine protection controller and the field emergency-trip circuitry.
In a typical Mark VI configuration, the board can control three emergency trip solenoids. The first terminal block is associated with the trip-solenoid, economizing-resistor, and emergency-stop wiring, while the second terminal block can accommodate multiple external trip-interlock inputs.
The board can receive trip interlock signals from external protection devices and provide the associated status information to the turbine control system. The TREG and TRPG boards operate together to complete the positive and negative sides of the solenoid power circuits.
For Mark VI systems, the TREG connects to the appropriate protection/I/O controller using molded-plug cables. In Mark VIe architectures, the corresponding interface uses the PPRO I/O pack and SPRO board.
🛠️ Installation & Maintenance
Before replacing the board, verify the complete part number IS200TREGH1BDB, rather than matching only the IS200TREGH1B portion. Board suffixes can identify different hardware configurations.
Recommended replacement procedure:
- Place the turbine control system in the approved maintenance state.
- Remove power according to the applicable turbine maintenance procedure.
- Record all terminal and cable connections.
- Confirm the board part number and revision markings.
- Inspect terminal blocks, connectors, relays, and board surfaces.
- Check for corrosion, overheating, damaged components, or loose terminals.
- Install the replacement board in the correct cabinet position.
- Reconnect all molded-plug cables and field wiring.
- Verify trip-interlock and solenoid feedback circuits.
- Perform the required emergency-trip and diagnostic tests before returning the turbine to service.
Because this is part of a turbine protection system, replacement and testing should be performed according to the approved site procedure and GE system documentation.
❓ FAQ
Q1: What is the GE IS200TREGH1BDB?
A: It is a Turbine Emergency Trip Terminal Board used in GE Mark VI turbine control systems.
Q2: What does the TREG board control?
A: The TREG board provides the positive DC side of the emergency trip solenoid circuits and can support up to three trip solenoids.
Q3: What is the difference between IS200TREGH1B and IS200TREGH1BDB?
A: IS200TREGH1B is the base ordering designation, while IS200TREGH1BDB identifies the specific board configuration/revision. The complete suffix should be matched when ordering a replacement.
Q4: Does the TREG work with another terminal board?
A: Yes. TREG works with the TRPG terminal board, with TREG providing the positive side and TRPG providing the negative side of the DC solenoid circuits.
Q5: How many emergency trip solenoids can it support?
A: The TREG architecture supports up to three emergency trip solenoids.
Q6: Is the IS200TREGH1BDB part of the Mark VI system?
A: Yes. It is identified as a GE Mark VI turbine control terminal board.
Q7: What should be checked before replacement?
A: Verify the complete board number, hardware configuration, connectors, field wiring, trip-solenoid arrangement, and system architecture.
Q8: Can a similar TREG board be substituted directly?
A: Not automatically. Different TREG variants can have different configurations, so the complete part number and system application should be verified before substitution.
📦 Recommended GE Models
- GE IS200TRPGH2B Trip Primary Terminal Board
- GE IS200TREAH1A Emergency Trip Relay Board
- GE IS200TRLYH1B Terminal Relay Board
- GE IS200TPROH1C Mark VI Terminal Board
- GE IS200TSVCH1A Servo Terminal Board
- GE IS200VTURH1B Turbine Control Terminal Board
- GE IS200VPROH2B Protection Module
- GE IS200VCCCH1B Contact Input / Relay Output Board
- GE IS200VAOCH1C Analog Output Board
- GE IS200VRTDH1D RTD Input Board
📋 Identification Summary
GE IS200TREGH1BDB
Turbine Emergency Trip Terminal Board
Mark VI Series
Ordering Information: IS200TREGH1B
Up to 3 Emergency Trip Solenoids
Approx. Weight: 0.8–1.0 kg
Condition: Used / Pre-Owned
Country of Origin: USA
