避(bi)雷(lei)(lei)器(qi)(qi)是(shi)也稱為過(guo)(guo)壓(ya)(ya)(ya)保(bao)護(hu)器(qi)(qi)，是(shi)用(yong)(yong)于保(bao)護(hu)電(dian)(dian)(dian)氣(qi)設(she)備免(mian)受高瞬態過(guo)(guo)電(dian)(dian)(dian)壓(ya)(ya)(ya)危(wei)害并限(xian)(xian)制續(xu)流時(shi)間也常限(xian)(xian)制續(xu)流賦值的(de)(de)一(yi)種(zhong)電(dian)(dian)(dian)器(qi)(qi)，是(shi)防(fang)止雷(lei)(lei)電(dian)(dian)(dian)損(sun)壞時(shi)采用(yong)(yong)的(de)(de)另一(yi)種(zhong)重要的(de)(de)設(she)備，用(yong)(yong)于變壓(ya)(ya)(ya)器(qi)(qi)、輸電(dian)(dian)(dian)線路、配電(dian)(dian)(dian)屏、開關柜、電(dian)(dian)(dian)力計量(liang)箱、真空開關、并聯補償電(dian)(dian)(dian)容器(qi)(qi)、旋轉(zhuan)電(dian)(dian)(dian)機及半(ban)導體器(qi)(qi)件等(deng)過(guo)(guo)電(dian)(dian)(dian)壓(ya)(ya)(ya)保(bao)護(hu)。避(bi)雷(lei)(lei)器(qi)(qi)、絕緣子的(de)(de)試(shi)驗(yan)的(de)(de)目的(de)(de)是(shi)根據(ju)GB1398-2008、DL/T626-2005試(shi)驗(yan)標準(zhun)進行相關預防(fang)性(xing)試(shi)驗(yan)，絕緣子測(ce)試(shi)儀解決因雷(lei)(lei)電(dian)(dian)(dian)造(zao)成的(de)(de)故障原因。 避(bi)雷(lei)(lei)器(qi)(qi)測(ce)試(shi)儀是(shi)用(yong)(yong)于現場和(he)實驗(yan)室檢測(ce)避(bi)雷(lei)(lei)器(qi)(qi)各項相關電(dian)(dian)(dian)氣(qi)參數的(de)(de)專用(yong)(yong)儀器(qi)(qi)，廣泛應用(yong)(yong)于氧化鋅避(bi)雷(lei)(lei)器(qi)(qi)的(de)(de)現場在線監(jian)測(ce)（帶電(dian)(dian)(dian)測(ce)試(shi)）和(he)實驗(yan)室（停電(dian)(dian)(dian)檢修）的(de)(de)測(ce)試(shi)中(zhong)。可測(ce)量(liang)氧化鋅避(bi)雷(lei)(lei)器(qi)(qi)在工頻電(dian)(dian)(dian)壓(ya)(ya)(ya)下的(de)(de)全(quan)電(dian)(dian)(dian)流、三(san)次諧波、阻(zu)性(xing)電(dian)(dian)(dian)流、阻(zu)性(xing)電(dian)(dian)(dian)流峰(feng)值、容性(xing)電(dian)(dian)(dian)流、有功(gong)功(gong)率等(deng)。