Automatic detection system for single-phase earth faults

Abstract

The invention discloses an automatic detection system for single-phase earth faults. The automatic detection system comprises a zero sequence voltage acquisition module, a three-phase voltage detection module, a fault diagnosis module, a power database, a processor and a plurality of control execution modules, wherein the fault diagnosis module is connected with the zero sequence voltage acquisition module, the three-phase voltage detection module and the power database; and the processor is connected with the power database, the fault diagnosis module and the control execution modules. According to the automatic detection system disclosed by the invention, the fault diagnosis module and the processor are combined with the zero sequence voltage acquisition module and the three-phase voltage detection module, so that automatic detection and diagnosis for the single-phase earth faults of all buses can be realized, and off control of the control execution modules connected with the buseshaving the single-phase earth faults is performed to further eliminate the single-phase earth faults of all the buses. The automatic detection system has the effects of automatic detection, diagnosisand repair; and the influence of the single-phase earth faults on operation of an electric power system is reduced, and operation stability and safety of the electric power system are improved.

Description

technical field [0001] The invention belongs to the technical field of electric power detection and relates to an automatic detection system for a single-phase grounding fault. Background technique [0002] With the development of the national economy and the scale of the power grid, higher requirements are put forward for the reliability and economy of power system operation, which makes the staff face huge challenges: on the one hand, the scale of the power grid continues to expand, the structure becomes more and more Flexible and changeable, in such a complex environment, it is becoming more and more difficult to ensure the safe operation of the system; Center, the difficulty of power grid control and the sharp increase in workload, the pressure of safe operation urgently needs the support of intelligent decision-making and rapid response capabilities. [0003] The phenomenon of single-phase grounding often occurs in the existing power grid. If the existing method is use...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an automatic detection system for single-phase ground faults, which solves the problems of low detection efficiency, poor reliability and poor safety in the existing power grid

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