IS200TTURH1B

Overview

The IS200TTURH1B is a Turbine Terminal Board by General Electric, part of the Mark VI series. It provides reliable input protection for turbine systems.

Specifications

• Manufacturer: General Electric

• Function: Turbine Protection Input Terminal Board

• Series: Mark VI

• Inputs: 12

• Operating Temp: -30 to 65°C

• Power Supply: 125 V dc

• Technology: Surface Mount

• Board Size: 33.0 cm x 17.8 cm

• Shaft Voltage: 5 V dc

• MPU Pulse Rate: 2 Hz to 20 kHz

Key Features

• Relays: K25, K25P, K25A close to provide 125 V dc power to main breaker 52G

• Connectors: JR5 for speed signal to VTUR, JR1, JS1, JT1, JS5, JT5

• Wiring: Connects magnetic pick-ups, shaft pick-ups, transformers, and breaker relays to TB1 and TB2

• Jumpers: JP1 and JP2 for SMX or TMR relay selection

Installation

• Terminal Blocks: TB1 and TB2 accept wires up to #12 AWG, with shield termination to chassis ground

• TTL Speed Pick-Ups: Connect to TB3 with external power supply

Operation

• Speed Measurement: Up to 4 pulse rate signals for turbine speed in simplex applications

• Synchronization: Receives generator and bus voltages for automatic sync with VTUR, turbine controller, and excitation system

• Relay Control: Controls main breaker relay coil 52G with permissive generator relays

• TMR Applications: Control signals from R, S, and T activate permissive relays K25 and K25P

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