氧化锌避雷器的选型

·1SiC10kVSiC1.135kVSiC110kVSiC80110100806kV10kV35kV22.166kV366kV66kV3kV3kV2.2201052.51.5kA2.32.4:2.5WCB123·455106123453kV66kV66kV33.1113500kV2320kV3·1In20kA10kA5kA2.5kA1.5kAUrkV420≤Ur≤46890≤Ur≤4684≤Ur≤255≤Ur≤345≤Ur≤905≤Ur≤1084≤Ur≤13.52.4≤Ur≤15.260≤Ur≤20745310kV6783.2UrIEC10s:Ur≥KUt(kV)K10sK=1.010sK=1.251.3UtkVUt23.3Uc≥0.8Ur:Uc≥Um/3UmkV10sUc≥Um/310sUc≥Um(3566kV)Uc≥1.1Um3kV20kV2UtkV3305003203566110220Ut1.1UmUm1.4Um/31.3Um/31.4Um/33.4121.15Ks1.25Ks1.43.530100µs:1.153.635kV200kV35kV170kV35kV134kV134×1.4=187.617035kV·120kV120×1.4=1683.7115kV115kVGB11032-2000DL/T804-2002DL/T613-19971Ur310sUrUn=15kVUm=15×1.2=18kVUr≥Ut=1.4×Um/3=14.6kV1IEC10sABBMWD15kV2UcUm/3Um/3UcUc≥Um/3=10.4kV2161·UPSDCS61234UPS142Uc≥0.8UrIECABBMWD12kV123DL/T613-1997366kV5kA1035kV5kA41.415kV105kV5kA(8/20µs)75kV(105/1.4)5kA(8/20µs)40kV55.4.3500A30/60µs15kV45kV46kV39.1kV45/1.153.215kVMWD133315kVMWD13ABBUr/kV14.616.2Uc/kV10.41330/60µs500A/kV≤39.1328/20µs5kA/kV≤7537.7ABBMWD134123