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The GE IS200VPROH1B card provides critical turbine protection for Mark VI systems. This protection card also carries the revision code IS200VPROH1BCA . It monitors overspeed conditions and initiates emergency shutdowns. The card acts as the primary safety interface for gas and steam turbines.
Technical Specifications of GE IS200VPROH1B IS200VPROH1BCA
| Parameter | Specification |
|---|---|
| Manufacturer | General Electric (GE) |
| Series | Mark VI Speedtronic |
| Full Model | GE IS200VPROH1B (IS200VPROH1BCA) |
| 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) |
| Trip Relays | 3 (Overspeed control) |
| Power Supply | 28 V DC (Nominal) |
| External Current | 0.5 mA |
| Response Time | 25 ms (Maximum) |
| Power Dissipation | 8 W (Typical) |
Component Count and Board Construction
The GE IS200VPROH1B card 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 meets industrial-grade reliability standards.
Interfaces, Energy Storage, and Signal Processing
The IS200VPROH1BCA revision provides a single-slot faceplate with three LEDs. Moreover, the card stores pulse rates using digital circuitry for accuracy. It uses a J5 cable connector for external interfacing. The card also checks circuit continuity and integrity automatically. Large capacitors provide power hold-up during brief interruptions.
Functional Logic and Application Context
This Mark VI card processes the median speed signal for primary trip logic. It monitors induced shaft voltage and excessive current levels accurately. The GE IS200VPROH1B controls three primary overspeed trip relays through the TRPx board. GE designed this Mark VI component for Triple Modular Redundancy (TMR) systems. Consequently, the card prevents false trips while ensuring genuine emergency response.
Installation and Environmental Limits
You must power down the VME rack before inserting this protection card. The operating temperature ranges from 0°C to 60°C . Furthermore, its compact width under 2 cm saves valuable rack space. Always verify the IS200VPROH1BCA revision matches your system requirements. Use proper ESD precautions during handling and installation.