The GE IS200VTURH1B board provides critical overspeed protection for Mark VI turbines. This turbine protection PCB also carries the revision code IS200VTURH1BAC . It monitors turbine speed and shaft conditions continuously. The board acts as the primary safety interface for gas and steam turbines.
Technical Specifications of GE IS200VTURH1B IS200VTURH1BAC
| Parameter | Specification |
|---|---|
| Manufacturer | General Electric (GE) |
| Series | Mark VI Speedtronic |
| Full Model | GE IS200VTURH1B (IS200VTURH1BAC) |
| Board Dimensions | 26.04 cm x 1.99 cm x 18.73 cm |
| Weight | Approximately 0.45 kg |
| Speed Inputs | 4 (Passive magnetic, 2-20,000 Hz) |
| Flame Detection Channels | 8 (Geiger-Mueller detectors) |
| Trip Relays | 3 (Overspeed control) |
| Power Supply | 28 V DC (Nominal) |
| External Current | 0.5 mA |
| Response Time | 25 ms (Maximum) |
Component Count and Board Construction
The GE IS200VTURH1B board contains over sixty integrated circuits. You will also find thirteen transistors on this board. Furthermore, hundreds of capacitors, resistors, and diodes populate the surface. The assembly includes two backplanes and a multi-position female plug for a daughterboard. Each component undergoes rigorous quality testing.
Interfaces, Energy Storage, and Signal Processing
The IS200VTURH1BAC revision provides a single-slot faceplate with three LEDs. Moreover, the board stores pulse rates using digital circuitry for accuracy. It uses a J5 cable connector for external interfacing. The board also checks circuit continuity and integrity automatically. Large capacitors provide power hold-up during brief interruptions.
Functional Logic and Application Context
This Mark VI board processes the median speed signal for primary trip logic. It monitors induced shaft voltage and excessive current levels accurately. The GE IS200VTURH1B controls three primary overspeed trip relays through the TRPx board. For gas turbine applications, this card requires an external 335 V DC supply for flame detectors. GE designed this Mark VI component for Triple Modular Redundancy (TMR) systems.
Installation and Environmental Limits
You must power down the VME rack before inserting this protection board. The operating temperature ranges from 0°C to 60°C . Furthermore, its compact width under 2 cm saves valuable rack space. Always verify the IS200VTURH1BAC revision matches your system requirements. Use proper ESD precautions during handling and installation.
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