基于电导率法的变电站断路器液压机构液压油含水率研究

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中图分类号：0657.11 文献标志码：B 文章编号：1671-5276（2025）06-0290-05

Abstract：Inordertoacuratelydetecthydraulicoilmoisturecontentintransformersubstationcircuitbreakerhydraulic mechanism，amethodofhydraulicoil moisturecontentdetectionbasedonconductivitymethodisstudied.Conductivity instrumentmeeting the measurementrangeandacuracyrequirementsandadaptabletothe fieldenvironmentof thesubstation is selected.Representative hydraulicoil samplesarecollcted from theupper，middeandlower partsofthe circuit breaker hydraulicmechanism.Samplesarepretreated inlaboratorytoremovesuspendedsolidsandimpurities.Theconductivityof the sampleis measuredbytheselectedconductivityinstrument，andthewatercontentinthehdraulicoiliscalculatedindirectlyby combining thecalibrationcurve.Thewatercontentinhydraulicoil iscalculatedsuccessfullyaccording totheconductivityvalues measuredbyexperiments.Comparison made withthespecified watercontentstandarddetermines whetherthe hydraulicoilof the sample meets the requirements.

Keywords：conductivity method；circuit breaker；hydraulic mechanism；hydraulic oil water content

0 引言

在电力系统的运行中，变电站断路器液压机构作为重要的组成部分，其稳定性和可靠性对于电网的安全运行至关重要。（剩余6876字）