GE IS200TTURH1CFD(IS230TNTRH1C) Terminal Turbine Board

Overview

The GE IS200TTURH1CFD(IS230TNTRH1C) is a Terminal Turbine Board designed for the Mark VIe turbine control system. It connects field instrumentation to the VTUR module, handling critical functions like turbine protection, speed sensing, and breaker control. GE developed this version as a more reliable upgrade of the IS200TTURH1, supporting both simplex and Triple Modular Redundant (TMR) configurations. Its rugged design and precise signal handling make it essential for safe turbine operation.

Technical Specifications

General Information

• Manufacturer: General Electric (GE)

• Series: Mark VIe

• Model Number: IS200TTURH1CFD(IS230TNTRH1C)

• Product Type: Turbine-Specific Primary Trip Board

• Technology: Surface mount

• Mounting Type: Panel mount with factory-drilled holes

• PCB Coating: Conformal coating

Electrical Interfaces

• Input/Output Channels: 48 total via 2 pluggable terminal blocks

• Signal Types: TTL speed pickups, generator voltage, shaft voltage/current

• Communication Interface: Direct wiring to VTUR via JR1 and JR5

• Relay Control: Controls 52G main breaker relay coil

• Relay Configuration: K25, K25P, K25A for 125 VDC breaker systems

Speed Sensor Parameters

• Speed Sensor Range: 2 Hz to 20 kHz

• Speed Sensor Accuracy: ±0.05%

• Input Sensitivity: 27 mV peak (MPU input)

Environmental and Physical

• Operating Temperature: –30°C to +65°C

• Dimensions: 305 mm × 229 mm × 76 mm

• Size (Alternate): 8.26 cm H × 4.19 cm W × 12.1 cm D

• Weight: 1.8 kg