Method for detecting factors influencing mechanical life of support porcelain insulator

Abstract

The invention relates to a method for detecting factors influencing a mechanical life of a support porcelain insulator. The method for detecting the factors influencing the mechanical life of the support porcelain insulator comprises the following steps: step 1, support porcelain insulator mechanical performance measurable indicators and life influencing factors which are planned to conduct quantitative evaluation are confirmed; step 2, a level range is chosen so as to generate a factor level execution table according to the influencing factors; step 3, orthogonal tables capable of inspecting each level of the factors are chosen, and orthogonal test steps are confirmed; step 4, relative tests according to required test conditions of each test number are carried out in sequence, and test data are recorded; step 5, the test data are analyzed, optimal factor combinations and a primary and secondary sequence of each influencing factor are confirmed, and whether influences of functions of each factor upon indicators are notable or not is judged; and step 6, a model for quantitative evaluation of the factors affecting the mechanical life of the support porcelain insulator is built according to test results. The method for detecting the factors influencing the mechanical life of the support porcelain insulator has the advantages of reducing test numbers, improving test subject utilization rate, and obtaining the rule of influence of each factor upon the indicators accurately.

Description

technical field [0001] The invention relates to a method for detecting factors affecting mechanical life, in particular to a method for detecting factors affecting mechanical life of pillar porcelain insulators. Background technique [0002] Porcelain post insulators are important equipment in power plants and substations. They are used as insulation and mechanically fixed connections between conductors and grounding bodies. The equipment supported by high-voltage post porcelain insulators includes busbars, disconnectors, and leads. Under the combined effects of strong electromagnetic environment, long-term mechanical load and harsh weather conditions, the electromechanical performance of pillar porcelain insulators will decrease significantly, which will easily lead to fracture accidents. Among them, the fracture accidents of the post porcelain insulators of disconnectors are the most frequent. [0003] The breakage of the pillar porcelain insulator during the operation or...

AI Technical Summary

Problems solved by technology

Extensive research has been carried out on the electrical characteristics of pillar porcelain insulators at home and abroad, but there has been no quantitative evaluation system for its mechanical life.

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