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目(mu)前在電(dian)(dian)力系統中，大(da)型地網(wang)的(de)接(jie)地電(dian)(dian)阻的(de)測(ce)(ce)試(shi)目(mu)前主要采用工(gong)(gong)頻大(da)電(dian)(dian)流三極法測(ce)(ce)量。為了防(fang)止電(dian)(dian)網(wang)運行時產生的(de)工(gong)(gong)頻干擾(rao)，提高測(ce)(ce)量結果的(de)準確(que)性，絕(jue)緣預(yu)防(fang)性試(shi)驗(yan)(yan)規(gui)程規(gui)定：工(gong)(gong)頻大(da)電(dian)(dian)流法的(de)試(shi)驗(yan)(yan)電(dian)(dian)流不得(de)小于30安培(pei)。由(you)此，就(jiu)出現了試(shi)驗(yan)(yan)設備(bei)笨重，試(shi)驗(yan)(yan)過(guo)程復雜，試(shi)驗(yan)(yan)人員工(gong)(gong)作強(qiang)度(du)大(da)，試(shi)驗(yan)(yan)時間(jian)長等(deng)諸多(duo)問題。
