This board monitors electrical parameters within GE Mark VIe turbine control systems. It senses voltage fluctuations and current loads across critical circuits. Therefore, it triggers protective relays during fault conditions without delay.
Technical Specifications of GE IS200WROBH1A IS200WROBH1ABA
The GE IS200WROBH1A IS200WROBH1ABA measures 23.5 cm in length and 16.0 cm in width. Its total weight equals approximately 0.48 kg for straightforward handling. A single 64-pin male connector links this board to the main backplane. Furthermore, the board integrates four independent Form C relay output channels.
| Parameter | Specification |
|---|---|
| Brand | General Electric (GE) |
| Full Model | IS200WROBH1A IS200WROBH1ABA |
| Category | Relay Power Sensing Board |
| Dimensions (L x W) | 23.5 cm x 16.0 cm (9.25″ x 6.30″) |
| Board Weight | 0.48 kg (1.06 lbs) |
| Primary Interface | 1 x 64-pin Male Connector |
| Relay Channels | 4 Independent Form C Relays |
| Relay Contact Rating | 5A at 250 VAC or 30 VDC |
| Voltage Sensing Range | 0–600 VAC (True RMS Measurement) |
| Current Sensing Range | 0–5 A via External Current Transformers |
| On-Board Components | 4 Relays + 3 Isolation Transformers |
| Energy Storage | 2 x 470 µF Electrolytic Capacitors (35V) |
| Operating Voltage | +5 VDC and +24 VDC from Backplane |
| Trip Response Time | < 15 ms for Overcurrent Events |
Energy Storage and Protection Logic
The GE IS200WROBH1A IS200WROBH1ABA stores energy using two aluminum electrolytic capacitors. These capacitors keep relay coils energized during short power interruptions. Each relay switches independently based on programmed threshold values. Consequently, this board responds to overcurrent events within 15 milliseconds.
Installation and Connector Layout
You will find all four relays arranged in a single accessible row on this board. Each relay provides clearly labeled NO, NC, and COM terminals for wiring. The board also includes four mounting holes positioned at each corner. Thus, it fits securely into any standard Mark VIe rack slot.
Details
| Weight | 0.1 kg |
|---|---|
| Dimensions | 25 × 108 × 127 mm |
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