Power distribution line rocket lightning-triggering test method of lightning arrester differentiation configuration

Abstract

The invention provides a power distribution line rocket lightning-triggering test method of lightning arrester differentiation configuration. The method comprises the following steps: S1, establishinga test line of lightning arrester differentiation configuration; S2, establishing a power distribution line direct lightning lead movable tower on the test line to perform rocket lightning triggeringtest; S3, measuring linear lightning over-voltage, the lightning current and arrester current waveform through a linear lightning over-voltage and lightning current digital waveform measurement system; S4, performing modelling simulation computation according to the test line through the voltage simulation software to obtain a test line anti-lightning performance parameter of the simulation model, and enabling the difference between the simulation model performance parameter and the measured corresponding parameter to be less than the preset threshold by updating the parameter of the simulation model and improving the test line in the field; and S5, quantitatively evaluating the power distribution line anti-lightning performance of the arrester differentiation configuration according to the simulation model parameter so as to obtain the power distribution line with the optimal arrester differentiation configuration. The invention further provides the corresponding device.

Description

technical field [0001] The invention relates to the technical field of lightning protection for power distribution lines, in particular to a test method for rocket induced lightning of power distribution lines with differential configuration of lightning arresters. Background technique [0002] Distribution network lightning accidents are one of the three major factors that affect the reliability of power supply in the area. Distribution arresters are widely used in distribution networks because of their good nonlinear protection characteristics of zinc oxide resistance. At present, distribution line arresters in various places The configurations vary greatly, and the occurrence of lightning strikes has the characteristics of randomness in time and place. It is difficult to compare and evaluate the effectiveness of different arrester configuration schemes only by running time accumulation period. [0003] Therefore, the current method is difficult to compare and evaluate the...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a test method for rocket induction of distribution lines with differential configurations of arresters, which is used to solve the technical problem that it is difficult to compare and evaluate the effectiveness of different arrester configuration schemes in the current method. The manual lightning induction test of distribution lines can Fixed-point quantitative empirical test on the lightning protection effect of distribution lines, so as to optimize the lightning protection measures of distribution lines and improve the reliability of power supply

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