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A method for evaluating the reliability of line arrester operation based on multi-parameter fusion

A line arrester and arrester technology, applied in the direction of instruments, measuring electricity, measuring devices, etc., can solve the problems of difficulty in effectively evaluating the operation status and operation reliability of line arresters, and achieve good technical economy, practical feasibility and strong practicability. , to ensure the effect of safe and stable operation

Active Publication Date: 2021-07-02
STATE GRID JIANGXI ELECTRIC POWER CO LTD RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that it is difficult to effectively evaluate the operating status and action reliability of the line arrester only relying on the counter value

Method used

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  • A method for evaluating the reliability of line arrester operation based on multi-parameter fusion
  • A method for evaluating the reliability of line arrester operation based on multi-parameter fusion
  • A method for evaluating the reliability of line arrester operation based on multi-parameter fusion

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Experimental program
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Embodiment 1

[0047] Such as image 3 A method of reliability evaluation method based on a multi-selection-based fusion-based wire lightning arrester:

[0048] (1) Statistical transmission line distributed fault diagnosis system in a certain period of time in a certain period of time, if I have I group monitoring data, data format is shown in Table 1, wherein the lightning strike nature is a counterattack, lightning strike nature Wire is a barrier.

[0049] Table 1. Distributed fault diagnosis system data for transmission lines

[0050] time Falling thunder position (Tower) Lightning strike nature T 1

13 Ground wire T 2

N wire ... ... ... T i

99 Tower

[0051] (2) Before and after a certain point in the lightning monitoring system, the statistical time point is Table 1 in Table 1. 2 Time, the target rod tower is N. Since the monitoring data in the lightning positioning system has a certain inherent error in time and space, the time buffer of the st...

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Abstract

The invention discloses a multi-parameter fusion-based operation reliability evaluation method for line lightning arresters, which is to determine the effective lightning strikes in the front and rear gears of a target tower at a certain moment by calculating the correlation degree of lightning strikes with data from a lightning monitoring system and a distributed fault diagnosis system for transmission lines , lightning strike type and lightning current amplitude, use the parameters of the tower and ground wire to calculate the counterattack and shielding shunt coefficient of the tower arrester, and then determine the current flowing through the arrester during each lightning strike, and compare it with the action threshold of the arrester counter to determine the Comparing the number of actions of the tower phase arrester with the action value of the arrester counter within the time period provides a reliable comparison benchmark for the arrester counter action value to accurately evaluate the operating status and action reliability of the arrester.

Description

Technical field [0001] The present invention relates to a method of evaluating a reliability of a line arrester based on multi-parameter fusion. It belongs to the technical field of transportation and maintenance inspection of high voltage equipment. Background technique [0002] The line arrester is the most reliable lightning protection measures current transmission line. Under the action of lightning, the line insulator is swattered by the radiocontrol, the line insulator is swatched, and the transmission line does not have a lightning stripping event, and the power grid is guaranteed. Safety and stable operation. [0003] Due to the operating voltage of the series gap isolation system, in addition to the disconnection test test is abnormal, the current standard is basically the "maintenance" operation and maintenance strategy, only required "to carry out regular patrols (at least once, thunderstorm season) , The action data of the record counter is visible, the number of oper...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00G01R19/17G01R19/00
CPCG01R19/0092G01R19/17G01R31/00
Inventor 邹建章胡京张宇李阳林况燕军饶斌斌李帆
Owner STATE GRID JIANGXI ELECTRIC POWER CO LTD RES INST