江蘇華(hua)辰發(fa)(fa)明了(le)一種(zhong)干式(shi)變壓器低壓箔(bo)(bo)(bo)式(shi)線(xian)圈引線(xian)結(jie)構及引線(xian)繞(rao)(rao)制(zhi)工藝(yi)，涉及變壓器領域。發(fa)(fa)明采用(yong)雙層(ceng)箔(bo)(bo)(bo)分(fen)(fen)流(liu)疊繞(rao)(rao)結(jie)構纏繞(rao)(rao)，每層(ceng)銅箔(bo)(bo)(bo)采用(yong)單獨的引出結(jie)構，使得低壓線(xian)圈額定電流(liu)平分(fen)(fen)到每組(zu)引線(xian)銅排上(shang)，有效避免了(le)電流(liu)過大時導致的銅排適用(yong)度小的問(wen)題，同(tong)時也有效縮(suo)減了(le)現場使用(yong)場地。

施耐德電(dian)(dian)(dian)(dian)(dian)氣發明了一(yi)種變(bian)壓器(qi)(qi)保(bao)(bao)(bao)護(hu)方(fang)法、裝置(zhi)、繼電(dian)(dian)(dian)(dian)(dian)保(bao)(bao)(bao)護(hu)器(qi)(qi)及(ji)供(gong)(gong)電(dian)(dian)(dian)(dian)(dian)系(xi)統(tong)(tong)(tong)。該(gai)方(fang)法提供(gong)(gong)供(gong)(gong)電(dian)(dian)(dian)(dian)(dian)系(xi)統(tong)(tong)(tong)的(de)(de)拓撲(pu)結(jie)(jie)構與(yu)保(bao)(bao)(bao)護(hu)電(dian)(dian)(dian)(dian)(dian)流整定值之間的(de)(de)預設(she)對應(ying)關系(xi)，任一(yi)繼電(dian)(dian)(dian)(dian)(dian)保(bao)(bao)(bao)護(hu)器(qi)(qi)在(zai)獲取供(gong)(gong)電(dian)(dian)(dian)(dian)(dian)系(xi)統(tong)(tong)(tong)的(de)(de)拓撲(pu)結(jie)(jie)構信(xin)息之后，基于該(gai)預設(she)對應(ying)關系(xi)確定與(yu)供(gong)(gong)電(dian)(dian)(dian)(dian)(dian)系(xi)統(tong)(tong)(tong)的(de)(de)當前拓撲(pu)結(jie)(jie)構對應(ying)的(de)(de)目(mu)(mu)標保(bao)(bao)(bao)護(hu)電(dian)(dian)(dian)(dian)(dian)流整定值，還會獲取其所(suo)屬供(gong)(gong)電(dian)(dian)(dian)(dian)(dian)子(zi)系(xi)統(tong)(tong)(tong)內的(de)(de)變(bian)壓器(qi)(qi)的(de)(de)進線側電(dian)(dian)(dian)(dian)(dian)流以及(ji)所(suo)屬供(gong)(gong)電(dian)(dian)(dian)(dian)(dian)子(zi)系(xi)統(tong)(tong)(tong)內的(de)(de)弧(hu)(hu)光傳(chuan)感(gan)器(qi)(qi)的(de)(de)弧(hu)(hu)光檢測信(xin)號(hao)，在(zai)進線側電(dian)(dian)(dian)(dian)(dian)流大于等(deng)于目(mu)(mu)標保(bao)(bao)(bao)護(hu)電(dian)(dian)(dian)(dian)(dian)流整定值，且弧(hu)(hu)光檢測信(xin)號(hao)表征檢測到弧(hu)(hu)光的(de)(de)情況下，斷開所(suo)屬供(gong)(gong)電(dian)(dian)(dian)(dian)(dian)子(zi)系(xi)統(tong)(tong)(tong)內的(de)(de)變(bian)壓器(qi)(qi)與(yu)供(gong)(gong)電(dian)(dian)(dian)(dian)(dian)網絡的(de)(de)連接，方(fang)案兼顧保(bao)(bao)(bao)護(hu)靈敏(min)度及(ji)保(bao)(bao)(bao)護(hu)穩定性，能夠解決(jue)現(xian)有技術中變(bian)壓器(qi)(qi)保(bao)(bao)(bao)護(hu)方(fang)法存在(zai)的(de)(de)問題。

保(bao)變(bian)電(dian)氣發(fa)明了一(yi)種變(bian)壓器有(you)(you)載開(kai)關電(dian)位電(dian)阻的(de)(de)安(an)裝結構及(ji)方法(fa)，屬于變(bian)壓器制作技(ji)術領(ling)域。發(fa)明的(de)(de)有(you)(you)益效果是：既滿足安(an)裝需求(qiu)，同時又能(neng)降低開(kai)關固定板(ban)的(de)(de)強度要(yao)求(qiu)，并且能(neng)充分利用(yong)油箱內的(de)(de)空間(jian)，方便引線的(de)(de)裝配。

特變電工(gong)申請了一種“變壓(ya)器絕(jue)緣件(jian)的(de)測試(shi)(shi)工(gong)裝”發明專利。采用此發明測試(shi)(shi)工(gong)裝能夠得(de)到對應(ying)不同(tong)抽真空階段(duan)的(de)絕(jue)緣件(jian)樣品，以及得(de)到對應(ying)不同(tong)注油階段(duan)的(de)絕(jue)緣件(jian)樣品。

小編在(zai)國家知識產權局網(wang)站中(zhong)以“變壓(ya)器(qi)”為“發明(ming)名稱”進(jin)行檢(jian)索，發現截至2023年(nian)(nian)10月20日(ri)，變壓(ya)器(qi)行業共計有115067項專利(li)。在(zai)2018年(nian)(nian)至2022年(nian)(nian)期(qi)間，變壓(ya)器(qi)專利(li)申請數量整(zheng)體呈波動趨勢，其(qi)中(zhong)2020年(nian)(nian)全行業申請最多，全年(nian)(nian)共申請了13673項變壓(ya)器(qi)專利(li)。