三倍頻(pin)試(shi)(shi)驗(yan)(yan)(yan)(yan)儀是(shi)為(wei)了(le)滿足GB1094.3—85、GB1207和(he)電氣(qi)設(she)備預(yu)防性試(shi)(shi)驗(yan)(yan)(yan)(yan)規程—1995中三倍頻(pin)感應耐(nai)壓(ya)試(shi)(shi)驗(yan)(yan)(yan)(yan)和(he)局放試(shi)(shi)驗(yan)(yan)(yan)(yan)而設(she)計(ji)。 變壓(ya)器、互感器感應耐(nai)壓(ya)試(shi)(shi)驗(yan)(yan)(yan)(yan)是(shi)檢驗(yan)(yan)(yan)(yan)該(gai)產(chan)品是(shi)否(fou)(fou)符(fu)合(he)國家標準的一項(xiang)(xiang)重(zhong)要試(shi)(shi)驗(yan)(yan)(yan)(yan)。繞(rao)組的層間、匝間、段及相間絕(jue)緣(yuan)的縱絕(jue)緣(yuan)感應試(shi)(shi)驗(yan)(yan)(yan)(yan)，是(shi)考(kao)驗(yan)(yan)(yan)(yan)繞(rao)組是(shi)否(fou)(fou)符(fu)合(he)要求的一個(ge)重(zhong)要項(xiang)(xiang)目。為(wei)了(le)提(ti)高繞(rao)組試(shi)(shi)驗(yan)(yan)(yan)(yan)電壓(ya)，使(shi)變壓(ya)器或互感器的鐵(tie)芯又不致(zhi)于過(guo)飽和(he)導致(zhi)勵磁電流(liu)過(guo)大(da)，因此要使(shi)試(shi)(shi)驗(yan)(yan)(yan)(yan)頻(pin)率(lv)提(ti)高，一般為(wei)100H