基于无线通信地下电缆接头故障巡检系统

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1、机床与液压Mar．2014HydromechatronicsEngineeringV01．42No．6DOI：10．3969／j．issn．1001-3881．2014．06．024PatrolinspectionsystemofundergroundcablejointfaultbasedonwirelesscommunicationXiao．changYOU十】，LeiLISchoolofMechanicalEngineering，ChongqingInd~tuPolytechnicCollege，Chongqing401120，China；

2、。CollegeofAutomation，ChongqingUnwe~ity，Chongqing400044，ChinaAbstract：Thetemperatureisanimportantparameterreflectedbyoperatingconditionofpowernetwork．Aimedatthepuzzleofbeingdificultytoinspectthefaultofundergroundcablejoint，thepaperexploredasortofpatrolinspectionsystemofundergr

3、oundcablejointfaultbasedonwire-lesscommunication．Inthepaper，itanalyzedthemechanismofhiddenfaultproducedbythejoint，designedthesystemoffrontenddetectionandbackgroundanalysisanditscorrespondingfunctionmodules，andrealizedthepatrolinspectionforcableiointfaultbymeansofwirelesscommu

4、nication．Thetestdatademonstratedthatthesystemcouldrealizethepatrolinspectioncoverageoverawidearea．andbeusedofIinebynetworkedcomputer．Theexperimentresultshowsthatthesystemdesignisfeasibleandavailableefectively．Keywords：Cablejoint，Undergroundcablefault，Wirelesscommunication，Pat

5、rolinspectionsys．tern0doftimeaftertheoperation(overload)．itoften1．Introductioncausesoverheating，oxidationinthepressurepoint，thecontactresistanceincreasesgradually，thejunc—Inthespecialpowergrid，thereisacablejointtiontemperaturegraduallyincreased．theinsulationabouttheaverage300

6、～500mfor6～10kVcable．getsaging，andfinallyitresultsininsulationlayerDuetotheenvironmentandproductionprocessfac—damagecausedbytheaccident．Accordingtostatis．tors，italwaysleadstheoccurenceof~equentcabletics，theaccidentcausedbycableiointsaccountedjointfault，andthecausedfiredisaster

7、probablyfor50％～65％ofgeneralcableaccidents．Thepow．lcadstolargeareaofcablelOSSandresultsingreate．erplantafter10yearsofoperationneedsreplacingconomiclOSS．andthereforeithasapositiveandfar．morethan90％ofcableointwhentheproductionofreachingeffecttomakeeffectivelymonitorandtimelycapi

8、talconstruction．Thecorrespondingrelationbe．judgethefaultofdedicatedu