GE DS3800NPSE1E1G Speedtronic Mark IV Power Supply Board
Manufacturer: GE Fanuc
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Part Number: DS3800NPSE1E1G
Condition：New with Original Package
Product Type: Power Supply Boards
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
GE DS3800NPSE1E1G Mark IV Power Supply Board
The GE DS3800NPSE1E1G, also cataloged as the DS3800NPSE Power Supply Board, operates as a dedicated hardware component for power conversion and voltage rail sequencing within Speedtronic Mark IV Turbine Control System platforms. The board converts incoming AC supply lines into regulated DC outputs to power system processors, interface cards, and exciter bridge control circuits.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | DS3800NPSE1E1G |
| Brand | GE (General Electric) |
| Origin | USA |
| Weight | 0.3 kg (up to 1.2 kg depending on revision) |
| Dimensions | 28.8 x 7.2 x 3.8 cm |
| Operating Temp | 0 to +60 deg C |
| Power Consumption | Not specified (Input: 120/240 VAC, 50/60 Hz) |
| System Compatibility | Speedtronic Mark IV Turbine Control System |
| Output Voltages | +5 VDC (12 A), +/-15 VDC (2.5 A each), +24 VDC field bus |
| Isolation | 1500 VAC input-to-output |
| Circuit Protection | Overvoltage, overcurrent, short-circuit, overtemperature |
| Form Factor | Euro-card, epoxy-sealed construction |
| Connectors | High-density pin headers, 40-pin backplane |
| Onboard Components | 38 capacitors, 24 diodes, 4 fuses (expandable), 3 potentiometers |
| Storage Temperature | -40 to +85 deg C |
| Certifications | UL, CE |
Backplane Bus Communication Velocity Licences and Deterministic Execution
The DS3800NPSE1E1G interfaces directly with the Mark IV backplane bus via a 40-pin connector and high-density pin headers, stabilizing system power rails without introducing backplane bus communication velocity delays across control racks. By maintaining steady +5 VDC logic rails and +/-15 VDC analog supplies, the module prevents voltage droop from degrading deterministic network timing across local process cards and SCR/IGBT bridge exciters. Integrated circuit protections clear fault states internally to shield active control processors from power bus noise and transient spikes.
Frequently Asked Questions
Q: Does the DS3800NPSE1E1G support hot-swapping during active turbine operation?
A: Yes, the board incorporates hot-swap capability, allowing replacement inside an energized rack housing without shutting down the primary turbine control system.
Q: How are onboard output adjustments handled during maintenance?
A: Output voltage calibration relies on three onboard precision potentiometers, while diagnostic LED indicators and physical test points allow real-time monitoring of DC power rails without removing the module.
Q: Can discrete internal components on the DS3800NPSE1E1G board be repaired in the field?
A: No, the board features an epoxy-sealed construction designed to prevent field repair attempts and preserve factory insulation standards.
Field Installation Guidelines
Slide the board vertically into the designated Euro-card slot of the Speedtronic Mark IV rack frame. Align the module edge guides with the cabinet rails and press firmly until the 40-pin backplane connector seats fully into the backplane mating socket. Engage any mechanical card latches to prevent dislodgement under structural vibration.
Verify that the input supply voltage matches the 120/240 VAC rating before energizing the rack assembly. Ensure field wiring shields and cabinet grounding strips connect directly to the main equipment earthing point to preserve the 1500 VAC isolation threshold between primary AC inputs and downstream DC output rails.