저압 3상 교류 실험용 전원공급 단락사고 방지 제어장치에 관한 연구

A Study on Power Supply Short Circuit Accident Prevention Control Device for Low Voltage 3 Phase Alternating Current Test

When power conduction and operation experiment are conducted by supplying power to the control circuit for the first time after manufacturing various electric control circuits that use low voltage 3 phase alternating current, the short circuit accident might occur due to the disconnection or error of circuit that is the subject of operation experiment. When the short circuit accident occurs, the wiring of control circuit and various relays for operation test are damaged, the operation test can be stopped in some cases. This study is about the experiment on operation properties by designing and manufacturing the circuit of short circuit accident prevention control device for the safe operation test and the prevention of this short circuit accident in advance.