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Diagnosis method and system for gis loop defect based on hot-reversed mother operation

A defect diagnosis and circuit technology, which is applied in the direction of instruments, measuring devices, measuring electricity, etc., can solve the problems of high risk of electric shock and consume a lot of manpower and material resources, so as to save manpower and material resources, reduce the risk of accidental contact with live devices and electric shock, and simplify The effect of the field work process

Active Publication Date: 2021-06-08
FOSHAN POWER SUPPLY BUREAU GUANGDONG POWER GRID
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  • Claims
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Problems solved by technology

[0006] The purpose of the present invention is to provide a GIS loop defect diagnosis method and system based on the operation of the heat-reversing mother, so as to solve the technical problems in the prior art that consume a lot of manpower and material resources and cause a high risk of electric shock due to misoperation

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  • Diagnosis method and system for gis loop defect based on hot-reversed mother operation
  • Diagnosis method and system for gis loop defect based on hot-reversed mother operation

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Embodiment Construction

[0039] Explanation of terms:

[0040] Hot switching bus: refers to the switching of lines or equipment on the bus between two buses without power failure.

[0041] Embodiments of the present invention provide a GIS loop defect diagnosis method and system based on hot-reverse bus operation to solve the technical problems in the prior art that consume a lot of manpower and material resources and cause high risk of electric shock due to misoperation.

[0042] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. A preferred embodiment of the invention is shown in the drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the present invention will be thorough and complete.

[0043] Unless otherwise defined, all technical ...

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Abstract

The present invention provides a GIS circuit defect diagnosis method and system based on the operation of the bus-reversing hot bus, wherein the method includes: operating the bus-tie circuit of each line in the substation by hot-swapping the bus, judging whether the three-phase current of the bus-tie circuit is balanced and recording Balance result; judge whether there is a defect in the bus tie circuit according to the balance result: if the three-phase current of the bus tie circuit of all lines is balanced, then the said bus tie circuit has no defect; if only the bus tie circuit of a single line has three-phase current unbalanced, the isolating switch in the bus tie circuit of this line is defective; if the three-phase current imbalance occurs in the bus tie circuits of multiple lines, the bus of the bus tie circuit is defective, and the defective section of the bus is further located until the diagnosis Finish. The present invention can be controlled remotely in the intelligent monitoring operation center, which saves the cumbersome link of on-site loop resistance measurement, saves a lot of manpower and material resources, and also reduces the risk of electric shock caused by misoperation.

Description

technical field [0001] The invention relates to the technical field of fault diagnosis of power equipment, in particular to a GIS circuit defect diagnosis method and system based on thermal switching operation. Background technique [0002] GIS equipment is a gas-insulated fully-sealed switchgear. It is widely used in modern power grids. It integrates isolating switches, circuit breakers, transformers (voltage and output current), grounding devices, lightning protection devices, cables and busbars. In one body, its own advantages are also very significant: small size, light weight, modular design integrating many functions, high reliability. Since GIS equipment is a key equipment, once the equipment itself has a problem, it will be difficult to repair and the maintenance cost will be high, resulting in huge losses, which may cause large-scale power outages. [0003] In the prior art, some digital X-ray imaging detection systems are used to detect equipment, mainly because t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00G01R29/16
CPCG01R29/16G01R31/00
Inventor 刘崧王俊波李国伟欧晓妹武利会赖艳珊刘少辉张殷李兰茵曾庆辉陈绮琪吴焯军
Owner FOSHAN POWER SUPPLY BUREAU GUANGDONG POWER GRID
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