A 2,000 watt generator ----is the maximum electrical power this generator can produce;
A 1,800 watt submersible pump ----is the mechanical power produced by this pump submersible;
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For the submersible pump to produce 1800 watts of mechanical power, the electrical power the generator must provide: P=1800/η=1800/0.8=2250 watts.
To operate this submersible pump generator, it must have a power of 2,500 watts. There is no need to use 2-3 times the power of the submersible pump, that is, consider starting the submersible pump directly. What I'm talking about here is that 2,500 watts can drive a 1,800 watt submersible pump using a generator-motor system, meaning both machines start at the same time.
Certainly not. The rated current of the 132 kW water pump is 200 A and the rated current of the generator is 273 A. Selon calculation, the starting current of the self-coupling step-down is 2-. 3 times the rated current, the starting current value is 600. It looks like about 800A, the switch start delay is about 10s and the generator can't drive it.