Test method for flashover discharge characteristics of transmission line insulators under simulated haze environment

Abstract

The invention discloses an electric transmission line insulator flashover discharge characteristic test method simulating the haze environment. The method includes the steps that a haze environment simulating device is arranged in an artificial weather chamber and an insulator flashover discharge testing platform is erected; a stable haze environment is formed; haze environment parameters are measured, all current variable haze environment parameters are adjusted to a plurality of different current values, a flashover discharge test is performed, and data fitting is performed on relation expressions according to a flashover discharge voltage and the different current values of the current variable haze environment parameters corresponding to the flashover discharge voltage; finally the obtained relation expressions of all the haze environment parameters serve as a flashover discharge characteristic test result to be output. The test method can simulate the real running characteristic and the flashover discharge characteristic of an insulator, can be applied to electric transmission line anti-haze design and evaluation of the running state of the insulator in a haze characteristic area and has the advantages of being high in test assessment reliability and accuracy.

Description

technical field [0001] The invention relates to the technical field of electrical engineering, in particular to a test method for flashover discharge characteristics of transmission line insulators in a simulated haze environment. Background technique [0002] In recent years, smog has occurred frequently in my country. When smog occurs, the content of inhalable harmful particles in the air increases sharply, which not only has a serious impact on human health, daily travel, and traffic order, but also affects outdoor substation pillar porcelain bottles, transformer bushings, and transmission line insulators that rely on the surrounding air. It also poses a huge threat to the safe operation of electrical external insulation equipment for other equipment and earth insulation. Relevant theoretical research and simulation calculations show that when the haze environment appears, the haze aerosol particles that absorb moisture near the high-voltage electrical external insulatio...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention: aiming at the present situation that the insulator pollution flashover test method of the prior art cannot be applied to the insulator haze flashover discharge situation and the aforementioned defects in the research field of the insulator haze flashover discharge test method in China, a method is provided It can simulate the real operating characteristics and flashover discharge characteristics of insulators, and can be applied to the anti-smog design of transmission lines and the evaluation of insulator operating status in haze characteristic areas. The test evaluates the reliability and accuracy of the simulated haze environment. Test method for flashover discharge characteristics of transmission line insulators

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