Research on the Method of On-line Discrimination of the State of Switching Control Circuits
Aiming at the example of the failure of the standby power switch in the 6 kV auxiliary power system of a power plant and be combined with the schematic diagram of the 6 kV switch control circuit,the article introduce a way to judge whether the control circuit is normal under the condition that the switch is not powered off,by measuring the voltage at both ends of part components,or the ground potential between some specific points and earth.