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There is an earth connection or ground connection with every power supply which must be connected to earth. u can get power for ur microcontroller from the phase & ground terminal and at the same time, you can check phase unbalance, by connecting 3 resistors in Y-connection & measuring the...
Hello everyone, I want to know that why 230VAC is written with Delta connection & 400VAC is written with Y-connection on every motor's nameplate. I can't find any answer to this.:-(
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