Download why 3 phase supply is 440 volts not 220 220 220=660v electrical interview question

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why 3 phase supply is 440 volts not 220 220 220=660v electrical interview question why 3 phase supply is 440 volts not 220 220 220=660v electrical interview question why 3 phase supply is 440 volts not 220 220 220=660v electrical interview question

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