電流諧波環(huán)境下電纜故障監(jiān)測(cè)技術(shù)研究

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中圖分類號(hào)：TP274；TM75 文獻(xiàn)標(biāo)志碼：A 文章編號(hào)：1001-5922（2025）05-0189-04

Abstract：Inorderto solve the problemoffault monitoring intheoperation of power cables，starting fromthe analysisof thecomposition，functional requirements and technical indicators ofthe monitoring system，acable fault monitoring system was built based on the high-frequency pulse current method.The monitoring process and method of partial discharge monitoring system were analyzes andoptimizes，and the cable fault ina current harmonic environment by improving the optimization strategy were detects andanalyzes.The results showed thatthe of-line monitoring partial discharge monitoring system could monitor thecable electrical signalandotherdata in thecurrent harmonic environment inreal time，and accurately judge the cable fault point in the current harmonic environment，and therange was accurate within 2O maround the monitoring point.Combined with the cable setting during cable operation inthe current harmonic environment，the precise location of the cable faultcouldbe further investigated，and the cause of the cable fault and the cable troubleshooting measures could be given in combination with the monitoring system database.

Key words：current harmonics；cable failure；high-frequency pulse current method；ofline monitoring； positioning monitoring

電力電纜故障是一種在輸電和配電系統(tǒng)運(yùn)行過(guò)程中，由于系統(tǒng)部件設(shè)計(jì)和外部環(huán)境變化等因素，在局部范圍內(nèi)產(chǎn)生短路、斷網(wǎng)等故障的現(xiàn)象。（剩余4859字）