Description
Product Overview
The IS200TTURH1BCC from GE is a primary turbine protection input terminal board designed for Mark VI and Mark VIe control systems. It interfaces with the VTUR processor and supports both simplex and triple modular redundancy (TMR) configurations.
This board measures turbine speed using twelve passive pulse rate inputs connected to toothed wheels. It also receives generator and bus voltage signals from potential transformers and provides a 125 Vdc output to the main breaker coil for automatic synchronizing.
Technical Specifications
| Specification |
Details |
| Manufacturer |
GE |
| Part Number |
IS200TTURH1BCC |
| Ordering Code |
IS200TTURH1B |
| Series |
Mark VI / Mark VIe |
| Voltage Output |
125 Vdc |
| Current |
5 A |
| Dimensions |
34 cm × 18 cm × 5 cm |
| Weight |
0.5 kg |
| Speed Inputs |
12 passive pulse rate devices |
| Relay Outputs |
K25, K25P, K25A |
| Connectors |
JR5, JR1 (Simplex); JR5, JS5, JT5, JS1, JT1 (TMR) |
Functional Features
-
Measures turbine speed via toothed wheel sensors
-
Accepts shaft voltage and current sensor inputs
-
Provides 125 Vdc to close breaker 52G through three relay outputs
-
Interfaces with VTUR using JR5 and JR1 connectors
-
Supports TMR systems with expanded connector fan-out
Applications & Compatibility
The IS200TTURH1BCC is engineered for turbine control systems requiring precise speed measurement and breaker synchronization. It integrates with VTUR processors in Mark VI systems and supports TMR configurations for high-reliability environments.
For Mark VIe systems, the updated model TTURH1C replaces this board. Use this component in power generation, industrial automation, and synchronous generator protection setups.
