三(san)倍(bei)頻試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)儀是(shi)(shi)為了滿足GB1094.3—85、GB1207和(he)電氣設(she)備預防性試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)規(gui)程—1995中三(san)倍(bei)頻感(gan)(gan)應(ying)耐(nai)壓試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)和(he)局放試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)而(er)設(she)計。 變(bian)壓器(qi)、互感(gan)(gan)器(qi)感(gan)(gan)應(ying)耐(nai)壓試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)是(shi)(shi)檢(jian)驗(yan)(yan)(yan)該(gai)產品(pin)是(shi)(shi)否符合國家標準的一(yi)項重(zhong)要試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)。繞組的層間(jian)(jian)、匝間(jian)(jian)、段及相間(jian)(jian)絕緣的縱絕緣感(gan)(gan)應(ying)試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)，是(shi)(shi)考驗(yan)(yan)(yan)繞組是(shi)(shi)否符合要求的一(yi)個重(zhong)要項目。為了提高繞組試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)電壓，使變(bian)壓器(qi)或互感(gan)(gan)器(qi)的鐵芯(xin)又不致于過飽和(he)導(dao)致勵磁電流過大，因此要使試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)頻率提高，一(yi)般為100H