·GB/T11024.1《標稱電(dian)壓1kV以上交(jiao)流(liu)電(dian)力系統用(yong)并聯電(dian)容器第1部分:總(zong)則》
·GB/T11024.2《標稱電(dian)壓1kV以上交流電(dian)力系統(tong)用(yong)并聯電(dian)容器第2部分:老(lao)化(hua)試驗》
·GB/T11024.3《標稱電(dian)壓1kV以上交流(liu)電(dian)力系統用并聯(lian)(lian)電(dian)容(rong)(rong)器第(di)3部(bu)分:并聯(lian)(lian)電(dian)容(rong)(rong)器和(he)并聯(lian)(lian)電(dian)容(rong)(rong)器組的(de)保護》
·GB/T11024.4《標稱電(dian)壓1kV以上(shang)交流(liu)電(dian)力系統用并聯電(dian)容器第(di)4部(bu)分(fen):內部(bu)熔(rong)絲》
·DL/T840《高(gao)壓并聯(lian)電容器使用技術條件》
·GB/T311.2《絕緣配合第1部分:定義、原則(ze)和規則(ze)》
·IEC 60871-1《Shunt capacitorfor a.c.power systemshaving arated voltageabove1000V-Part1:General》
·IEC 60871-2《Shunt capacitor for a.c.power systemshavingaratedvoltageabove1000V-Part2:Endurance testing》
·IEC 60871-3《Shunt capacitor for a.c.powersystemshavingaratedvoltageabove1000V-Part3:Protection of shunt capacitors and shunt capacitorbanks》
·IEC 60871-4《Shunt capacitor for a.c.powersystemshavingaratedvoltageabove1000V-Part4:internal fuses》
1、電(dian)容器極間(jian)介質能承受下列二(er)種(zhong)試驗(yan)電(dian)壓之(zhi)一,歷時10s。
a. 工(gong)頻交流(liu)電壓:Ut(~)=2.0UNb. 直流(liu)電壓:Ut (一(yi))=4.0UN
2、電(dian)容器的(de)(de)實測電(dian)容值(zhi)與額定(ding)(ding)值(zhi)之差不超過(guo)額定(ding)(ding)值(zhi)的(de)(de)-2%~+3%。
3、電容(rong)器(qi)在工頻額定電壓下,溫度為(wei)20℃時的損(sun)耗角正切值(tanδ)為(wei):帶(dai)內熔絲(si)電容(rong)器(qi):tanδ≤0.02%,不帶(dai)內熔絲(si)電容(rong)器(qi):tanδ≤0.015%。
4、放(fang)電(dian)電(dian)阻:電(dian)容器均(jun)內置放(fang)電(dian)電(dian)阻,放(fang)電(dian)電(dian)阻10min內由(you)√2UN下降至75V或50V以下。
5、短(duan)路放電(dian)能力:電(dian)容器10min內耐受5次(ci)2.8UN短(duan)路放電(dian)。
6、熔(rong)絲隔離:上(shang)限電(dian)壓為2.5√2UN,下限電(dian)壓為0.8√2Un,熔(rong)絲動(dong)作后,斷口(kou)承受3.5UnE直流試驗(yan)(yan)電(dian)壓(UNE為元件電(dian)壓)和2.15UNE交流試驗(yan)(yan)電(dian)壓。
7、局部放電性能
1)極間局部放電
將(jiang)電(dian)(dian)容器加壓至(zhi)(zhi)局(ju)部放(fang)電(dian)(dian)起(qi)始后歷時(shi)1s,降壓至(zhi)(zhi)1.35UN保持10min,然(ran)后再將(jiang)電(dian)(dian)壓升(sheng)至(zhi)(zhi)1.6UN保持10min,此時(shi),無明顯局(ju)部放(fang)電(dian)(dian)。對(dui)于嚴寒地(di)區,電(dian)(dian)容器在溫度下限時(shi)局(ju)部放(fang)電(dian)(dian)熄滅(mie)電(dian)(dian)壓不(bu)低于1.2UN。
2)極對殼局部放電熄滅電壓
極對殼(ke)局部放(fang)電(dian)熄滅電(dian)壓不低于1.2Um(Um 為最高(gao)運行線電(dian)壓)。
8、過負載能力
1)操作過(guo)電(dian)壓(ya):電(dian)容器能承(cheng)受第一個峰值不超過(guo)2√2UN持續1/2周期的過(guo)渡過(guo)電(dian)壓(ya)。
2)最(zui)大(da)允許(xu)電(dian)(dian)(dian)流:電(dian)(dian)(dian)容(rong)器(qi)允許(xu)在(zai)由于電(dian)(dian)(dian)壓升高(gao)及高(gao)次諧波造成的(de)有(you)效值為1.3In 的(de)穩定過電(dian)(dian)(dian)流下(xia)運行,對于電(dian)(dian)(dian)容(rong)具有(you)最(zui)大(da)正偏差(cha)的(de)電(dian)(dian)(dian)容(rong)器(qi),這個過電(dian)(dian)(dian)流允許(xu)達到1.43倍。
3)長時間電壓