Rapid detection method for GIS equipment

Abstract

The invention discloses a rapid detection method for GIS equipment, and belongs to the field, and the rapid detection method for the GIS equipment comprises the steps: judging whether the GIS equipment is abnormal or not, and executing S2-S4 when the GIS equipment is abnormal; checking the temperature of a shell of the GIS equipment, a transmission part in a mechanism box, a gear and secondary wiring; detecting micro water and decomposition products of the SF6 gas in each chamber; and detecting partial discharge in the fault chamber. According to the rapid detection method for the GIS equipment, whether the GIS equipment is abnormal or not is judged firstly, and then partial discharge detection is carried out when the GIS equipment is abnormal, so that the problem of rapid abnormal detection of the GIS is solved, the abnormal partial discharge phenomenon in the GIS can be found timely and accurately through an accumulated threshold method, the judgment result is accurate and timely, and false alarm caused by external interference is effectively avoided; and the accuracy of abnormal detection is improved, and the problems of false alarm and missing alarm in the alarm process of the partial discharge online monitoring system are solved.

Description

technical field [0001] The invention relates to the technical field of GIS equipment, and more specifically, relates to a fast detection method for GIS equipment. Background technique [0002] GIS (GASINSULATESWITCHGEAR) is the abbreviation of gas insulated fully enclosed combined electrical appliances. GIS is composed of circuit breaker, isolating switch, grounding switch, transformer, lightning arrester, busbar, connector and outlet terminal, etc. GIS is a high-voltage electrical equipment with high operational reliability, less maintenance workload, and long maintenance cycle. Its failure rate is only 20% to 40% of conventional equipment. However, GIS also has its inherent shortcomings. Due to the influence of factors such as SF6 gas leakage, external moisture infiltration, existence of conductive impurities, and aging of insulators, it may cause internal flashover faults in GIS. [0003] Under the current situation, the fully sealed structure of GIS makes fault locatio...

AI Technical Summary

Problems solved by technology

However, GIS also has its inherent shortcomings. Due to the influence of factors such as SF6 gas leakage, external moisture infiltration, existence of conductive impurities, and aging of insulators, it may cause internal flashover faults in GIS.

[0003] Under the current circumstances, the fully sealed structure of GIS makes it difficult to locate and repair faults, and the maintenance work is complicated. The average power outage maintenance time after an accident is longer than that of conventional equipment, and its power outage range is large, often involving non-faulty components

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