Description
1. Product Title
GE IS200WNPSH1ABA – Power Supply Daughter Card (MRP646180)
2. Product Overview
The GE IS200WNPSH1ABA (MRP646180) is a power supply daughter card designed for GE’s Mark VI turbine control systems. It mounts directly onto main power supply modules like the IS200WNSH1A, providing regulated low-voltage DC rails (+5V, +3.3V, ±15V) to VME processors and I/O circuitry. This card addresses voltage regulation challenges in turbine controllers by offering isolated, filtered outputs with overvoltage protection, ensuring stable operation during power transients and load variations. The GE IS200WNPSH1ABA supports simplex and redundant configurations, maintaining continuous power delivery critical for real-time turbine sequencing and protection functions.
3. Technical Specifications
- Brand: GE (General Electric)
- Model: IS200WNPSH1ABA (MRP646180)
- Warranty: One Year
- Condition: 100% New & Original
- Input Voltage: 28 VDC nominal from main supply
- Outputs: +5 VDC @ 20A, +3.3 VDC @ 15A, ±15 VDC @ 2A
- Regulation: <1% line/load variation
- Connectors: Edge-mounted to host board
- Operating Temp: -40°C to +85°C
- Protection: Overcurrent, thermal shutdown, EMI filtering
4. Key Features & Benefits
- High-Current Capacity: Delivers stable power to multiple VME slots and I/O packs, preventing voltage sag during peak turbine control demands.
- Integrated Filtering: LC networks and ferrite beads suppress noise, protecting sensitive DSPs and analog circuits from conducted interference.
- Hot-Plug Compatible: Allows replacement without system power-down, minimizing outages in continuous operation plants.
5. Application Scenarios
- Gas Turbine Controllers: Powers VCCC/VGEN processors and RST I/O packs in Mark VI control cabinets.
- Steam Turbine Protection: Supplies clean DC rails for overspeed detection and vibration monitoring modules.
- Excitation Systems: Supports auxiliary power needs in EX2100 regulator racks alongside main excitation supplies.
6. Frequently Asked Questions (FAQ)
- Q: What is the primary function of the GE IS200WNPSH1ABA?
A: It provides regulated low-voltage DC power as a daughter card for Mark VI main power supplies, feeding VME-based controllers. - Q: Is GE IS200WNPSH1ABA compatible with legacy systems?
A: Yes, it mounts on standard Mark VI WNSH boards and integrates with earlier Speedtronic power architectures via pin-compatible connectors.
