Voltage drop during motor startup
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Can a 315KVA transformer power just one 250KW motor? How to solve motor starting problems? Is it calculated this way? Assuming the parameters for 315 KVA are known: impedance voltage: 4.5%, secondary rated current: 454 A. Assuming the parameters for 250 KW are known: motor rated current: 496 A. Auto-transformer step-down starting is used. Assuming the starting current is 4 times higher, 4*496=1984A; thus the voltage drop during motor startup is (1984/454)*4.5%=19%, which meets the specified limit of 20%. I’m not sure if the algorithm is correct I appreciate your advice.
Why isn’t there anyone replying? Please help calculate it; I need it urgently There is wealth given as a gift.