Automatic detection system for single-phase earth faults

A single-phase ground fault, automatic detection technology, applied in the direction of fault location, emergency protection detection, fault detection according to conductor type, etc., can solve the problems of low detection efficiency, poor reliability, poor safety, etc., to achieve the elimination of single-phase ground fault, The effect of reducing impact and improving stability and safety

Inactive Publication Date: 2018-11-06
安徽亚辉电气自动化有限公司
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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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  • Automatic detection system for single-phase earth faults

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0023] see figure 1 As shown, an automatic detection system for single-phase ground faults includes a zero-sequence voltage acquisition module, a three-phase voltage detection module, a fault diagnosis module, a power database, a processor, and several control execution modules. The fault diagnosis module is connected to the zero-sequence voltage The acquisition module, the three-phase voltage detection module are connected to the power database, and the processor ...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/08H02H7/22H02H1/00
CPCG01R31/086H02H1/0007H02H7/22
Inventor 宁仁飞陈涛王习红
Owner 安徽亚辉电气自动化有限公司
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