江蘇華辰發明了一(yi)種干(gan)式變壓(ya)(ya)器(qi)低壓(ya)(ya)箔式線(xian)(xian)圈引(yin)線(xian)(xian)結(jie)構及(ji)引(yin)線(xian)(xian)繞制工藝，涉及(ji)變壓(ya)(ya)器(qi)領域(yu)。發明采用(yong)雙層(ceng)箔分(fen)(fen)流(liu)疊繞結(jie)構纏(chan)繞，每(mei)層(ceng)銅(tong)箔采用(yong)單獨的(de)引(yin)出結(jie)構，使得低壓(ya)(ya)線(xian)(xian)圈額定電流(liu)平分(fen)(fen)到每(mei)組引(yin)線(xian)(xian)銅(tong)排(pai)上，有效避免了電流(liu)過大(da)時導致的(de)銅(tong)排(pai)適用(yong)度小的(de)問題(ti)，同時也(ye)有效縮減了現場使用(yong)場地。

施(shi)耐德電(dian)(dian)(dian)氣發明了一種變壓(ya)器(qi)(qi)保(bao)護(hu)(hu)(hu)方法、裝置(zhi)、繼電(dian)(dian)(dian)保(bao)護(hu)(hu)(hu)器(qi)(qi)及(ji)供(gong)(gong)電(dian)(dian)(dian)系(xi)(xi)(xi)統(tong)。該(gai)方法提(ti)供(gong)(gong)供(gong)(gong)電(dian)(dian)(dian)系(xi)(xi)(xi)統(tong)的(de)(de)拓(tuo)撲結構與(yu)保(bao)護(hu)(hu)(hu)電(dian)(dian)(dian)流整(zheng)定值之間的(de)(de)預設(she)對(dui)應關系(xi)(xi)(xi)，任一繼電(dian)(dian)(dian)保(bao)護(hu)(hu)(hu)器(qi)(qi)在(zai)獲取供(gong)(gong)電(dian)(dian)(dian)系(xi)(xi)(xi)統(tong)的(de)(de)拓(tuo)撲結構信息之后，基于該(gai)預設(she)對(dui)應關系(xi)(xi)(xi)確(que)定與(yu)供(gong)(gong)電(dian)(dian)(dian)系(xi)(xi)(xi)統(tong)的(de)(de)當前拓(tuo)撲結構對(dui)應的(de)(de)目標保(bao)護(hu)(hu)(hu)電(dian)(dian)(dian)流整(zheng)定值，還會獲取其所屬供(gong)(gong)電(dian)(dian)(dian)子(zi)系(xi)(xi)(xi)統(tong)內(nei)的(de)(de)變壓(ya)器(qi)(qi)的(de)(de)進(jin)(jin)線側電(dian)(dian)(dian)流以及(ji)所屬供(gong)(gong)電(dian)(dian)(dian)子(zi)系(xi)(xi)(xi)統(tong)內(nei)的(de)(de)弧(hu)光傳感(gan)器(qi)(qi)的(de)(de)弧(hu)光檢(jian)(jian)測信號，在(zai)進(jin)(jin)線側電(dian)(dian)(dian)流大(da)于等于目標保(bao)護(hu)(hu)(hu)電(dian)(dian)(dian)流整(zheng)定值，且弧(hu)光檢(jian)(jian)測信號表(biao)征檢(jian)(jian)測到(dao)弧(hu)光的(de)(de)情況下，斷開(kai)所屬供(gong)(gong)電(dian)(dian)(dian)子(zi)系(xi)(xi)(xi)統(tong)內(nei)的(de)(de)變壓(ya)器(qi)(qi)與(yu)供(gong)(gong)電(dian)(dian)(dian)網(wang)絡的(de)(de)連接(jie)，方案兼顧保(bao)護(hu)(hu)(hu)靈敏度及(ji)保(bao)護(hu)(hu)(hu)穩定性，能夠解決現(xian)有(you)技術中變壓(ya)器(qi)(qi)保(bao)護(hu)(hu)(hu)方法存在(zai)的(de)(de)問題(ti)。

保變(bian)(bian)電氣發明了一種變(bian)(bian)壓(ya)(ya)器有(you)載開關電位電阻的(de)(de)安(an)裝結構(gou)及(ji)方法，屬于變(bian)(bian)壓(ya)(ya)器制作技術領域。發明的(de)(de)有(you)益效果是：既(ji)滿足安(an)裝需求，同(tong)時又能降低(di)開關固定板的(de)(de)強度要求，并且能充分利用油箱內的(de)(de)空(kong)間(jian)，方便引線的(de)(de)裝配。

特變(bian)電工申請了(le)一種“變(bian)壓(ya)器絕緣(yuan)件的(de)測試(shi)工裝”發明專利。采用(yong)此發明測試(shi)工裝能夠得到對應不同抽(chou)真空階段的(de)絕緣(yuan)件樣品，以及得到對應不同注油階段的(de)絕緣(yuan)件樣品。

小編在國家知識產(chan)權局網(wang)站(zhan)中以“變(bian)壓器(qi)”為“發(fa)明(ming)名(ming)稱”進行(xing)(xing)檢索，發(fa)現截(jie)至2023年10月(yue)20日，變(bian)壓器(qi)行(xing)(xing)業共計有115067項專利(li)(li)。在2018年至2022年期(qi)間，變(bian)壓器(qi)專利(li)(li)申請數量整(zheng)體呈波動趨勢，其中2020年全(quan)行(xing)(xing)業申請最多，全(quan)年共申請了13673項變(bian)壓器(qi)專利(li)(li)。