江蘇華辰(chen)發明了一種干式變壓器低壓箔(bo)式線圈(quan)(quan)引(yin)線結構及(ji)引(yin)線繞制工藝，涉及(ji)變壓器領域(yu)。發明采用(yong)(yong)雙層(ceng)箔(bo)分流(liu)(liu)疊繞結構纏繞，每(mei)層(ceng)銅(tong)箔(bo)采用(yong)(yong)單獨的(de)引(yin)出結構，使得低壓線圈(quan)(quan)額定電(dian)流(liu)(liu)平分到每(mei)組引(yin)線銅(tong)排上，有效(xiao)避免了電(dian)流(liu)(liu)過大(da)時導(dao)致的(de)銅(tong)排適用(yong)(yong)度(du)小的(de)問題，同時也(ye)有效(xiao)縮減了現場(chang)使用(yong)(yong)場(chang)地。

施耐德電(dian)(dian)(dian)氣發明(ming)了一(yi)種變(bian)壓器(qi)保(bao)(bao)護(hu)方法(fa)、裝置、繼(ji)電(dian)(dian)(dian)保(bao)(bao)護(hu)器(qi)及供(gong)(gong)(gong)電(dian)(dian)(dian)系(xi)統(tong)。該方法(fa)提供(gong)(gong)(gong)供(gong)(gong)(gong)電(dian)(dian)(dian)系(xi)統(tong)的(de)拓撲(pu)(pu)結(jie)構與(yu)(yu)保(bao)(bao)護(hu)電(dian)(dian)(dian)流整定(ding)值(zhi)之間的(de)預(yu)設對應關系(xi)，任(ren)一(yi)繼(ji)電(dian)(dian)(dian)保(bao)(bao)護(hu)器(qi)在(zai)獲取供(gong)(gong)(gong)電(dian)(dian)(dian)系(xi)統(tong)的(de)拓撲(pu)(pu)結(jie)構信(xin)息(xi)之后，基于(yu)該預(yu)設對應關系(xi)確定(ding)與(yu)(yu)供(gong)(gong)(gong)電(dian)(dian)(dian)系(xi)統(tong)的(de)當前拓撲(pu)(pu)結(jie)構對應的(de)目標保(bao)(bao)護(hu)電(dian)(dian)(dian)流整定(ding)值(zhi)，還會獲取其所(suo)(suo)屬(shu)供(gong)(gong)(gong)電(dian)(dian)(dian)子(zi)(zi)系(xi)統(tong)內的(de)變(bian)壓器(qi)的(de)進(jin)線側電(dian)(dian)(dian)流以(yi)及所(suo)(suo)屬(shu)供(gong)(gong)(gong)電(dian)(dian)(dian)子(zi)(zi)系(xi)統(tong)內的(de)弧(hu)光傳感器(qi)的(de)弧(hu)光檢測信(xin)號，在(zai)進(jin)線側電(dian)(dian)(dian)流大于(yu)等于(yu)目標保(bao)(bao)護(hu)電(dian)(dian)(dian)流整定(ding)值(zhi)，且弧(hu)光檢測信(xin)號表(biao)征檢測到弧(hu)光的(de)情(qing)況(kuang)下，斷開所(suo)(suo)屬(shu)供(gong)(gong)(gong)電(dian)(dian)(dian)子(zi)(zi)系(xi)統(tong)內的(de)變(bian)壓器(qi)與(yu)(yu)供(gong)(gong)(gong)電(dian)(dian)(dian)網絡(luo)的(de)連接，方案兼顧保(bao)(bao)護(hu)靈(ling)敏度及保(bao)(bao)護(hu)穩定(ding)性，能夠解決現有技術中變(bian)壓器(qi)保(bao)(bao)護(hu)方法(fa)存在(zai)的(de)問題。

保(bao)變電氣發(fa)明了一種變壓器(qi)有載開(kai)關(guan)電位電阻的(de)安裝(zhuang)結(jie)構及方(fang)法(fa)，屬于(yu)變壓器(qi)制作技術領(ling)域。發(fa)明的(de)有益效(xiao)果是(shi)：既滿足安裝(zhuang)需求，同時又能(neng)降低開(kai)關(guan)固定板的(de)強度要(yao)求，并且能(neng)充(chong)分利用油箱內(nei)的(de)空間，方(fang)便引線的(de)裝(zhuang)配。

特變(bian)電(dian)工申請了(le)一種“變(bian)壓器絕緣件的(de)測試工裝(zhuang)”發明(ming)(ming)專(zhuan)利(li)。采(cai)用此發明(ming)(ming)測試工裝(zhuang)能夠得到對應不(bu)同(tong)抽真空階(jie)(jie)段的(de)絕緣件樣品，以及(ji)得到對應不(bu)同(tong)注油(you)階(jie)(jie)段的(de)絕緣件樣品。

小編在國家知識產權(quan)局網站中(zhong)以“變(bian)壓(ya)器”為(wei)“發明名稱”進行檢(jian)索，發現截至(zhi)2023年(nian)10月20日，變(bian)壓(ya)器行業共計有115067項(xiang)專利(li)。在2018年(nian)至(zhi)2022年(nian)期間(jian)，變(bian)壓(ya)器專利(li)申請數量(liang)整體呈波(bo)動趨勢，其中(zhong)2020年(nian)全行業申請最多，全年(nian)共申請了13673項(xiang)變(bian)壓(ya)器專利(li)。