Description

GE IS200TPROH1BBB: Terminal Board for Mark VI Turbine Control System

Product Description

The GE IS200TPROH1BBB is a critical terminal interface board designed for the GE Mark VI gas/steam turbine control system, now part of the Emerson portfolio. This component serves as a primary wiring interface and signal conditioning unit, providing the physical connection point between field devices—such as thermocouples, resistance temperature detectors (RTDs), analog transmitters, and contactors—and the system’s internal control and I/O modules. The GE IS200TPROH1BBB is engineered to ensure signal integrity, provide electrical isolation, and offer organized termination in the demanding environment of a turbine control cabinet. Its role is fundamental in translating real-world process signals into reliable data for the Mark VI controller. The robust construction of the GE IS200TPROH1BBB is tailored to withstand the vibration and electrical noise typical in power generation settings.

Product Parameters

• Product Type: Terminal Board / Termination Assembly

• Manufacturer: GE (General Electric) / Emerson

• Part Number: IS200TPROH1BBB

• Compatible System: Mark VI Turbine Control System

• Function: Provides termination, grouping, and signal conditioning for a defined set of I/O points (e.g., for a specific turbine module like the fuel system or vibration monitoring).

• Connections: Features screw terminals or connectors for field wiring and ribbon cables or connectors for internal system connection.

• Mounted Components: Includes resistors, fuses, isolation components, and test points specific to its designated signal types.

• Mounting: Designed to install within a designated slot or location in the Mark VI control rack or cabinet.

Advantages and Features

The primary advantage of the GE IS200TPROH1BBB is its system-engineered design, which guarantees signal integrity and simplifies complex wiring. It consolidates and organizes numerous field connections into a single, maintainable unit, dramatically reducing wiring errors and easing troubleshooting. The board provides critical signal conditioning, such as filtering and isolation, to protect sensitive internal electronics from field-side transients and noise. Its design includes clear labeling and often incorporates test points, allowing technicians to verify signals without disturbing the control system. The reliability and purpose-built nature of the GE IS200TPROH1BBB are essential for the safe and continuous operation of the turbine.

Application Cases in Various Fields

This terminal board is used exclusively within GE/Emerson Mark VI turbine control applications. In Gas Turbine Power Plants, the GE IS200TPROH1BBB might be used to terminate all temperature inputs (TCs and RTDs) from the turbine’s combustor and exhaust sections. For Steam Turbine control in a combined cycle plant, it could interface pressure transmitters and valve position feedback signals. In Aeroderivative Turbine installations on offshore platforms or mechanical drive applications, it handles critical speed and vibration monitoring sensor inputs. It is also integral in Industrial Turbine applications for compressor control in pipelines or refineries.

Comparisons with Competing Products

The GE IS200TPROH1BBB is not a generic terminal block. It is a proprietary, system-specific component with no direct equivalent from other manufacturers like Siemens or Woodward. Competing turbine control systems use their own custom-designed terminal boards. Compared to using a set of discrete terminal strips and signal conditioners, this integrated board offers superior reliability, guaranteed compatibility, and a factory-defined wiring scheme that ensures the system operates as originally engineered and safety-certified. Its value lies in its role as a certified part of the complete Mark VI safety and control system.

Selection Suggestions and Precautions

1. Exact Replacement: The GE IS200TPROH1BBB must be replaced with an identical part number. Substituting a different terminal board (even from the same Mark VI family) can have different wiring, conditioning circuits, or pinouts, leading to system malfunction or a turbine trip.

2. Wiring Documentation: Before replacement, obtain and meticulously follow the specific Mark VI system’s wiring diagram or I/O list that references this exact terminal board. Document all wire connections with photos and labels before disassembly.

3. Static Sensitivity: Handle the GE IS200TPROH1BBB with appropriate electrostatic discharge (ESD) precautions, as it may contain static-sensitive components connected to the internal bus.

4. Functional Testing: After installation and before returning the turbine to service, perform a functional test of all signals passing through the new GE IS200TPROH1BBB using the control system’s diagnostic tools to verify proper operation.

5. Authorized Source: Due to its critical nature in turbine safety systems, source this component from authorized Emerson/GE distributors or highly reputable specialists in turbine control spares to ensure authenticity and traceability.

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