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1、电力变压器UHF局部放电在线检测UHF?8???[?I?)??????SiteDetectionandMeasureforPartialDischargeofElectricPowerTransformerbasedonUHF?u?k1,2????1?j????3????3?u????4?????34(1.?????U?I???c??????,????????350003;2.?????6???I?l???n?M?????g????,????????350002;3.?????U?I???????l????,????????350007;4.???I???M?I???
2、????E???H??????????,???E?I???6??,?E??102206)????:???)??????????(UHF)???J???????I??220kV?Q???N?e???????8???)??????pH??????????????????pU????pU?????????????n,?????????p???[?I?c???????????????t??,?????????[?I??????pU????pU?6?)pH???-??:?I????????;?8???[?I;??????Abstract:Partialdischargeof22
3、0kVstandbyoil-filledtransformerinNanpuelectricpowerplantisdetectedonthespotbysingUHFsensors.Theprocessofsysteminstallation,test,andanti-disturbancemeasuresareintroduced.Thedischargeimpulsesignalchartsareparsedstatistically,andthusgaintheposition,type,andcharacterofthepartialdischarges.K
4、eywords:PowerTransformer;PartialDischarge;UltraHighfrequency?y???t????:TM41???-?e???U:B?????g??:1006-0170(2006)02-0015-04FUJIANDIANLIYUDIANGONG?A26???A2?32006??6?DISSN1006-0170CN35-1174/TM1?h???8???[?I(???n?????8?[)?N?4?u???w???g???/??????,???N???g?????????x?????????s,?M???w?????????g??
5、???????e????pH????,???8???[?I???c?j?????????I?????e???????B?????????c?????s??pH?c???I?9??????????????,???A?s??1MHz,???a?i?V?????????r,???C?y?P???g??????pU??????????,????????????,????????,???l???A????????????????????;???y?????l???t??(DissolvedGasesAnalysis,DGA)DGA?????????N?N???????M????
6、?4,?d?????4?????6???Q?????8?[????????????;?????????????????????8?[????,???c???[?I?????6???????????p???)???Z?y???3???8?[;???????????8???[?I?8???3???I?9?c??,??????,???s??200ps,?o?R????????,???M?8?[??????????????GHz??????????[3][4]pHUHF?8?[????,?m???4?3?8?[?8????????????(300??3000MHz)?I???
7、?????,?????8???[?I????????????pH?K???8??????????????,???c?j?p?????G???????y???I??pU???????????m???I?l????(???A?s??Mz);???l?K?????)?????????7????,??????????????????????????pH?A?(?????y?m???Q???[???????????J?????????s,?u???p?????p?????????????3???8?[,?????)?????????K???t????????,
