變壓器(qi)(qi)、GIS系統(tong)、SF6開關、CT/PT、絕(jue)緣子、母(mu)線、電(dian)(dian)(dian)纜、套管等容性設(she)備是變電(dian)(dian)(dian)站中(zhong)Z常見的(de)(de)一(yi)次(ci)電(dian)(dian)(dian)氣設(she)備。根據220V以及(ji)以下變電(dian)(dian)(dian)站一(yi)次(ci)電(dian)(dian)(dian)氣設(she)備耐(nai)壓的(de)(de)試驗(yan)(yan)(yan)規程(cheng)要求，相應的(de)(de)交/直流流耐(nai)試驗(yan)(yan)(yan)設(she)備既要滿(man)足高電(dian)(dian)(dian)壓、小電(dian)(dian)(dian)流的(de)(de)試驗(yan)(yan)(yan)條(tiao)件(jian)，又要滿(man)足低(di)電(dian)(dian)(dian)壓，大電(dian)(dian)(dian)流的(de)(de)試驗(yan)(yan)(yan)條(tiao)件(jian)，要求兼顧較寬的(de)(de)適用范圍，采用串聯諧振(zhen)的(de)(de)原理(li)，由變頻電(dian)(dian)(dian)源控制箱（操作臺）、激(ji)勵變壓器(qi)(qi)、電(dian)(dian)(dian)抗器(qi)(qi)、電(dian)(dian)(dian)容分(fen)壓器(qi)(qi)組(zu)成了主(zhu)設(she)備，在電(dian)(dian)(dian)容分(fen)壓器(qi)(qi)上，接入整