Motor Starting Load Calculator
NEMA code letter to locked-rotor kVA, inrush amps, and the generator size a motor start demands.
Result
Generator kW needed to accept this start
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Motor running load
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Inrush current
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Starting kVA (locked rotor)
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Starting surge versus running load
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Formula
Calculation logicWhat to check
- Motor nameplate hp, code letter, and service factor
- Starting method and any soft-start or VFD settings
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