Switch cabinet partial discharge positioning method based on transient earth voltage and ultrasonic waves

Switch cabinet partial discharge positioning method based on transient earth voltage and ultrasonic waves

The invention relates to a switch cabinet partial discharge positioning method based on transient ground voltage and ultrasonic waves, and the method comprises the following steps: S1, determining the measurement position of a switch cabinet, carrying out the transient ground voltage and ultrasonic...

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Hauptverfasser: ZHU XIAOXIAN, TANG XIAOJIAN, WANG YIMING, CAO YUJIE, MA SHAOQIANG, ZHANG YONG, ZHU DANNI, ZHOU YAN, CHANG JUN, ZHENG JIA, ZHA JIANQING
Format: Patent
Sprache:chi ; eng
Schlagworte:
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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creator ZHU XIAOXIAN
TANG XIAOJIAN
WANG YIMING
CAO YUJIE
MA SHAOQIANG
ZHANG YONG
ZHU DANNI
ZHOU YAN
CHANG JUN
ZHENG JIA
ZHA JIANQING
description The invention relates to a switch cabinet partial discharge positioning method based on transient ground voltage and ultrasonic waves, and the method comprises the following steps: S1, determining the measurement position of a switch cabinet, carrying out the transient ground voltage and ultrasonic wave combined measurement of the measurement position of the switch cabinet, and obtaining the actual transient ground voltage and ultrasonic waves; s2, calculating the energy ratio N of the transient ground voltage and the ultrasonic wave of each detection position of the actual switch cabinet; s3, selecting the maximum transient ground voltage to ultrasonic energy ratio Nmax from the ratios in the S2; and S4, comparing the maximum energy ratio Nmax with the energy ratio N * of the same position obtained by simulation, if the comparison error does not exceed an error threshold value, taking the maximum energy ratio Nmax as the position of the partial discharge source in the switch cabinet, otherwise, changing the
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subjects MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
title Switch cabinet partial discharge positioning method based on transient earth voltage and ultrasonic waves
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