Description
Product Overview
The IS200TTURH1BEC 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 |
IS200TTURH1BEC |
| 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) |
| Terminal Blocks |
TB1 and TB2, 24 terminals each |
| Wire Gauge |
Accepts up to #12 AWG |
| TTL Input Option |
TB3 (requires external power) |
Installation & Configuration
Connect magnetic pickups, shaft sensors, and transformer signals to TB1 and TB2 terminal blocks. Use jumpers JP1 and JP2 to select simplex or TMR relay driver mode. For TTL active speed pickups, connect to TB3 with external power.
Shielded wires should terminate on the chassis-grounded strip beside each terminal block. Use JR5 and JR1 connectors for simplex systems, and all six connectors for TMR configurations.
Applications & Compatibility
The IS200TTURH1BEC is ideal for turbine control, generator synchronization, and industrial automation. It integrates with VTUR processors and supports both Mark VI and Mark VIe platforms.
Use this board in high-reliability environments requiring precise speed measurement, voltage sensing, and coordinated breaker control.
