Research on the Method of Preventing Misoperation in Measuring the Voltage of the Pressure Plate at the Exit of Substation Protection

In order to reduce the misoperation rate of voltage measurement on the pressure plate, the paper proposes a new method for preventing misoperation of voltage measurement on the pressure plate at the outlet of substation protection. Firstly, based on the wiring method, the measurement method for the voltage of the protection outlet pressure plate in the substation was analyzed. Secondly, the situation of misoperation in voltage measurement of the substation protection outlet pressure plate was explained. Finally, the principle of preventing voltage measurement from misoperation is set, and the process of preventing voltage misoperation of the substation protection outlet pressure plate is proposed. The test results show that the method proposed in this paper can reduce the error rate of voltage measurement while maintaining the accuracy of voltage measurement on the pressure plate. The maximum error rate of the method proposed in this paper does not exceed 1%. Therefore, it indicates that the practical application ability of this method is strong.