主變局放試驗報告工程名稱：220kVXXXXX工程安裝位置:#2主變試驗日期：XXXXXXX1．銘牌型號SSZ11-H-180000/220額定頻率50HZ相數(shù)三相三線圈連接組標號YNyn0,d11額定電壓220kV額定容量180/180/90MVA出廠編號4130027生產(chǎn)日期XXXXX制造廠家XXXXXXX2、加壓接線和測量方法試驗由VFSR低干擾變頻串聯(lián)成套試驗裝置供電，在被試變壓器低壓施加勵磁電壓，高壓(或中壓)側(cè)感應(yīng)出相應(yīng)的試驗電壓，試驗時中性點接地，測量信號從高壓(或中壓)側(cè)套管的末屏端子獲得，試驗接線以A相為例，示意如下：T：勵磁變壓器L1、L2：諧振電抗器cb1、cb2：諧振電容Tr：被試變壓器3、局放試驗電壓及試驗程序3.1高側(cè)局放:被試變壓器加激磁電壓U2=1.7Um/=253kV，試驗電壓U1=1.5Um/=218kV，在試驗電壓U1下維30分鐘。試驗加壓程序如下：U2(40S)U1(5min)U1(30min)U0(5min)U0=160.58kVU1=218.97kVU2=253kVU0(5min)局部放電試驗高壓側(cè):(試驗頻率226.2HZ)電壓標幺值高壓側(cè)電壓(kV)時間試驗局部放電量(PC)標準值(PC)ABC0008.37.79.1-----1.1Um/√3160.585min49.248.448.91001.5Um/√3218.975min49.9.49.749.13001.7Um/√325330s///1.5Um/√3218.975min50.548.848.91.5Um/√3218.9710min50.149.650.11.5Um/√3218.9715min48.949.151.41.5Um/√3218.9720min49.448.949.31.5Um/√3218.9725min48.851.250.51.5Um/√3218.9730min48.550.449.71.1Um/√3160.585min47.848.448.41003.2中側(cè)局放:被試變壓器加激磁電壓U2=1.7Um/=124kV，試驗電壓U1=1.5Um/=110kV，在試驗電壓U1下維30分鐘。試驗加壓程序如下：U2(40S)U1(5min)U1(30min)U0(5min)U0=80kVU1=110kVU2=124kVU0(5min)局部放電試驗中壓側(cè):(試驗頻率226.2HZ)電壓標幺值高壓側(cè)電壓(kV)時間試驗局部放電量(PC)標準值(PC)ABC0006.87.47.3-----1.1Um/√376.845min48.644.845.81001.5Um/√3104.795min49.347.348.53001.7Um/√3118.7630s///1.5Um/√3104.795min48.550.449.31.5Um/√3104.7910min49.848.747.71.5Um/√3104.7915min50.948.049.11.5Um/√3104.7920min51.349.449.61.5Um/√3104.7925min47.848.847.21.5Um/√3104.7930min48.548.247.71.1Um/√376.845min46.245.947.21004.試驗設(shè)備、儀器:局部放電測試儀JFD-2000VFSR-W變頻成套試驗裝置5