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Lightning arrester quality evaluation method and related equipment

A quality assessment and arrester technology, applied in the field of arresters, can solve the problems of lack of arrester evaluation and quality control, high failure rate of arresters, uneven quality of arresters, etc., and achieve the effect of reducing the incidence of failure accidents and economic losses.

Pending Publication Date: 2022-07-08
YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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Problems solved by technology

However, at present, there are frequent accidents of lightning arresters in Yunnan Province, and the lightning arresters used generally have problems such as high failure rate and short service life.
[0004] The quality of surge arresters produced by different manufacturers, different types and models, and different production batches is uneven, and the power grid lacks measures for evaluation and quality control of arresters when purchasing arresters

Method used

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  • Lightning arrester quality evaluation method and related equipment
  • Lightning arrester quality evaluation method and related equipment
  • Lightning arrester quality evaluation method and related equipment

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Embodiment Construction

[0047] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0048]The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of this application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It is to be understood that data so used can be interchanged under appropriate circumstances so that the embodiments described herein can be practiced in sequences other than ...

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Abstract

The embodiment of the invention discloses a lightning arrester quality evaluation method and related equipment. The method comprises the following steps: constructing a lightning arrester quality evaluation system; obtaining a to-be-evaluated lightning arrester sample; on the basis of a grey clustering analysis method, performing first-level fuzzy comprehensive evaluation operation on the lightning arrester sample to be evaluated for all the lightning arrester quality influence indexes to obtain a first-level grey clustering coefficient vector matrix; executing a second-level fuzzy comprehensive evaluation operation according to the first-level grey clustering coefficient vector matrix to obtain a quality membership matrix; and determining the lightning arrester quality grade to which the to-be-evaluated lightning arrester sample belongs in the quality membership matrix based on a maximum membership principle. According to the good lightning arrester quality evaluation method provided by the embodiment of the invention, the quality difference of lightning arresters of different manufacturer models can be selected, a reference is provided for distribution network lightning arrester model selection and optimal configuration, and the fault accident rate and economic loss of a power grid lightning arrester are reduced.

Description

technical field [0001] The invention relates to the technical field of surge arresters, in particular to a method for evaluating the quality of surge arresters and related equipment. Background technique [0002] The arrester, also known as the overvoltage limiter, is an overvoltage protection device for the power system. The characteristics of the arrester can be divided into protection characteristics and operating characteristics. The protection characteristics of the arrester reflect its ability to limit the overvoltage of the power system, and it is the basis for the insulation coordination of power transmission and transformation equipment. Improving the protection characteristics of the arrester can improve the operational safety and reliability of the protected equipment, and can reduce the insulation level. As the voltage level increases, its economic benefits become more and more significant. The operating characteristics of the arrester should include operating l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06K9/62G06Q50/06
CPCG06Q10/06395G06Q10/06393G06Q50/06G06F18/23Y04S10/50
Inventor 王科李荣秦张贵鹏秦忠徐肖伟邵力项恩新李学芳
Owner YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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