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Jun 17, 2002 · To find starting KVA if only locked rotor amps are known; 1 phase. KVA start = (locked rotor amps) (voltage) 3 phase . KVA start = (3 ( locked rotor amps) ( voltage) For submersible water pumps only, use page 24-17,18 for motor data. To find running KW and KVA if only full load current is known; 1 phase . KVA = ( I full load current) ( voltage) ................
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