江蘇(su)華辰發明了一種干式(shi)變壓器低(di)壓箔式(shi)線圈引(yin)線結(jie)構(gou)及(ji)引(yin)線繞制工藝(yi)，涉(she)及(ji)變壓器領(ling)域。發明采用(yong)雙層箔分流疊(die)繞結(jie)構(gou)纏繞，每(mei)層銅(tong)箔采用(yong)單獨(du)的引(yin)出結(jie)構(gou)，使得低(di)壓線圈額定電(dian)流平分到每(mei)組引(yin)線銅(tong)排上，有效(xiao)(xiao)避免(mian)了電(dian)流過大時導致(zhi)的銅(tong)排適用(yong)度小的問(wen)題，同時也有效(xiao)(xiao)縮減(jian)了現場使用(yong)場地(di)。

施耐(nai)德電(dian)(dian)(dian)氣發明了一種變(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(ji)供(gong)(gong)(gong)電(dian)(dian)(dian)系(xi)(xi)統(tong)(tong)。該(gai)方法(fa)提供(gong)(gong)(gong)供(gong)(gong)(gong)電(dian)(dian)(dian)系(xi)(xi)統(tong)(tong)的(de)(de)(de)(de)(de)拓撲(pu)(pu)結構(gou)與保(bao)(bao)護(hu)電(dian)(dian)(dian)流整(zheng)定值之間的(de)(de)(de)(de)(de)預設對應關系(xi)(xi)，任一繼(ji)電(dian)(dian)(dian)保(bao)(bao)護(hu)器(qi)在(zai)獲(huo)取供(gong)(gong)(gong)電(dian)(dian)(dian)系(xi)(xi)統(tong)(tong)的(de)(de)(de)(de)(de)拓撲(pu)(pu)結構(gou)信息(xi)之后，基于該(gai)預設對應關系(xi)(xi)確定與供(gong)(gong)(gong)電(dian)(dian)(dian)系(xi)(xi)統(tong)(tong)的(de)(de)(de)(de)(de)當(dang)前(qian)拓撲(pu)(pu)結構(gou)對應的(de)(de)(de)(de)(de)目標保(bao)(bao)護(hu)電(dian)(dian)(dian)流整(zheng)定值，還會(hui)獲(huo)取其(qi)所屬(shu)供(gong)(gong)(gong)電(dian)(dian)(dian)子(zi)系(xi)(xi)統(tong)(tong)內的(de)(de)(de)(de)(de)變(bian)壓器(qi)的(de)(de)(de)(de)(de)進線側電(dian)(dian)(dian)流以(yi)及(ji)所屬(shu)供(gong)(gong)(gong)電(dian)(dian)(dian)子(zi)系(xi)(xi)統(tong)(tong)內的(de)(de)(de)(de)(de)弧光(guang)傳(chuan)感器(qi)的(de)(de)(de)(de)(de)弧光(guang)檢(jian)測(ce)信號，在(zai)進線側電(dian)(dian)(dian)流大于等(deng)于目標保(bao)(bao)護(hu)電(dian)(dian)(dian)流整(zheng)定值，且弧光(guang)檢(jian)測(ce)信號表(biao)征檢(jian)測(ce)到弧光(guang)的(de)(de)(de)(de)(de)情況下，斷開(kai)所屬(shu)供(gong)(gong)(gong)電(dian)(dian)(dian)子(zi)系(xi)(xi)統(tong)(tong)內的(de)(de)(de)(de)(de)變(bian)壓器(qi)與供(gong)(gong)(gong)電(dian)(dian)(dian)網絡的(de)(de)(de)(de)(de)連接(jie)，方案兼(jian)顧保(bao)(bao)護(hu)靈敏度(du)及(ji)保(bao)(bao)護(hu)穩定性(xing)，能夠解決(jue)現(xian)有技術中變(bian)壓器(qi)保(bao)(bao)護(hu)方法(fa)存在(zai)的(de)(de)(de)(de)(de)問題。

保(bao)變電氣發明(ming)了一種(zhong)變壓(ya)器有載(zai)開關(guan)電位電阻的(de)(de)(de)安(an)裝(zhuang)結構及方法，屬于變壓(ya)器制作技術(shu)領域。發明(ming)的(de)(de)(de)有益效果是：既滿足安(an)裝(zhuang)需求，同時又能降低開關(guan)固定(ding)板的(de)(de)(de)強度要求，并且能充分利用油箱內的(de)(de)(de)空間，方便引線的(de)(de)(de)裝(zhuang)配(pei)。

特變電(dian)工(gong)申請(qing)了一種(zhong)“變壓(ya)器絕(jue)緣(yuan)件的測(ce)試(shi)工(gong)裝(zhuang)(zhuang)”發明專利。采用(yong)此發明測(ce)試(shi)工(gong)裝(zhuang)(zhuang)能夠得到對應不(bu)同抽真空階段(duan)的絕(jue)緣(yuan)件樣(yang)品(pin)(pin)，以(yi)及(ji)得到對應不(bu)同注油階段(duan)的絕(jue)緣(yuan)件樣(yang)品(pin)(pin)。

小編在(zai)國家知識產權(quan)局網(wang)站中以“變(bian)(bian)壓(ya)器(qi)”為“發明名稱”進(jin)行(xing)檢索，發現截至2023年(nian)10月20日，變(bian)(bian)壓(ya)器(qi)行(xing)業共計有115067項(xiang)專(zhuan)(zhuan)利(li)。在(zai)2018年(nian)至2022年(nian)期間，變(bian)(bian)壓(ya)器(qi)專(zhuan)(zhuan)利(li)申請(qing)數量整(zheng)體呈波動趨勢，其中2020年(nian)全行(xing)業申請(qing)最(zui)多，全年(nian)共申請(qing)了(le)13673項(xiang)變(bian)(bian)壓(ya)器(qi)專(zhuan)(zhuan)利(li)。