Marine Generator / Alternator · Power Generation
The Nidec Marine SR4B is a 1000 kVA, four‑pole synchronous generator delivering 690 V at 60 Hz for shipboard power generation, featuring an IP23 enclosure and Class H insulation for high‑temperature operation.
Every value below comes from the manufacturer datasheet or class-society record on file for this model.
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What our service work and the manufacturer documentation say about keeping this model running.
Inspect winding cleanliness, insulation condition, bearings, cooling air path, terminals, excitation equipment and signs of overheating. Trend insulation, vibration and winding or bearing temperatures and review AVR or protection alarms. Verify voltage and reactive-load behaviour during normal operation. Refer to the manufacturer documentation for the exact figure for insulation, bearing, excitation and electrical limits.
Carry AVR or excitation modules where supported, rotating-diode sets, bearings, temperature sensors, fuses, terminal hardware and approved cleaning or insulation-maintenance materials.
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