江蘇華(hua)辰(chen)發(fa)明(ming)了一種(zhong)干式(shi)變壓器低壓箔(bo)式(shi)線圈引(yin)線結(jie)構及(ji)引(yin)線繞(rao)(rao)制工藝，涉及(ji)變壓器領域。發(fa)明(ming)采用(yong)雙層(ceng)箔(bo)分流(liu)疊繞(rao)(rao)結(jie)構纏繞(rao)(rao)，每(mei)(mei)層(ceng)銅(tong)箔(bo)采用(yong)單獨的引(yin)出結(jie)構，使(shi)得低壓線圈額定(ding)電流(liu)平分到每(mei)(mei)組引(yin)線銅(tong)排(pai)上，有效(xiao)(xiao)避免了電流(liu)過大時導致的銅(tong)排(pai)適用(yong)度小(xiao)的問題，同(tong)時也有效(xiao)(xiao)縮減(jian)了現場使(shi)用(yong)場地。

施耐(nai)德電(dian)(dian)氣(qi)發(fa)明了一種變(bian)壓器(qi)(qi)保(bao)護(hu)方(fang)法、裝置、繼電(dian)(dian)保(bao)護(hu)器(qi)(qi)及(ji)(ji)供(gong)(gong)電(dian)(dian)系(xi)統(tong)(tong)(tong)(tong)。該方(fang)法提供(gong)(gong)供(gong)(gong)電(dian)(dian)系(xi)統(tong)(tong)(tong)(tong)的(de)(de)拓(tuo)撲結構(gou)與保(bao)護(hu)電(dian)(dian)流(liu)整定(ding)值之間的(de)(de)預設(she)對應關系(xi)，任一繼電(dian)(dian)保(bao)護(hu)器(qi)(qi)在(zai)獲取供(gong)(gong)電(dian)(dian)系(xi)統(tong)(tong)(tong)(tong)的(de)(de)拓(tuo)撲結構(gou)信(xin)息之后(hou)，基(ji)于(yu)該預設(she)對應關系(xi)確定(ding)與供(gong)(gong)電(dian)(dian)系(xi)統(tong)(tong)(tong)(tong)的(de)(de)當前拓(tuo)撲結構(gou)對應的(de)(de)目(mu)(mu)標保(bao)護(hu)電(dian)(dian)流(liu)整定(ding)值，還會獲取其所屬供(gong)(gong)電(dian)(dian)子系(xi)統(tong)(tong)(tong)(tong)內的(de)(de)變(bian)壓器(qi)(qi)的(de)(de)進(jin)線側電(dian)(dian)流(liu)以及(ji)(ji)所屬供(gong)(gong)電(dian)(dian)子系(xi)統(tong)(tong)(tong)(tong)內的(de)(de)弧(hu)光傳感器(qi)(qi)的(de)(de)弧(hu)光檢測信(xin)號，在(zai)進(jin)線側電(dian)(dian)流(liu)大于(yu)等于(yu)目(mu)(mu)標保(bao)護(hu)電(dian)(dian)流(liu)整定(ding)值，且弧(hu)光檢測信(xin)號表征(zheng)檢測到弧(hu)光的(de)(de)情況下，斷開所屬供(gong)(gong)電(dian)(dian)子系(xi)統(tong)(tong)(tong)(tong)內的(de)(de)變(bian)壓器(qi)(qi)與供(gong)(gong)電(dian)(dian)網絡的(de)(de)連(lian)接(jie)，方(fang)案(an)兼顧保(bao)護(hu)靈(ling)敏度及(ji)(ji)保(bao)護(hu)穩定(ding)性，能夠解決現(xian)有技術中變(bian)壓器(qi)(qi)保(bao)護(hu)方(fang)法存在(zai)的(de)(de)問題。

保變電(dian)氣(qi)發明(ming)了一種變壓器(qi)有載開(kai)關電(dian)位(wei)電(dian)阻(zu)的(de)(de)安裝結(jie)構及方(fang)法(fa)，屬于變壓器(qi)制作技術領域(yu)。發明(ming)的(de)(de)有益效(xiao)果是(shi)：既(ji)滿足安裝需(xu)求，同時又能降低開(kai)關固定板的(de)(de)強度要求，并(bing)且(qie)能充分(fen)利用油箱(xiang)內的(de)(de)空間，方(fang)便(bian)引線的(de)(de)裝配。

特變(bian)電(dian)工申請了一種“變(bian)壓器(qi)絕緣(yuan)件(jian)的測試(shi)工裝”發(fa)明(ming)專利。采用此(ci)發(fa)明(ming)測試(shi)工裝能夠得到對應不同抽真空階段的絕緣(yuan)件(jian)樣品，以及得到對應不同注油階段的絕緣(yuan)件(jian)樣品。

小(xiao)編在國(guo)家知識產(chan)權(quan)局網站中(zhong)以“變(bian)壓器”為“發明(ming)名稱”進行(xing)檢索，發現截(jie)至2023年(nian)(nian)10月(yue)20日(ri)，變(bian)壓器行(xing)業共計(ji)有115067項專(zhuan)利。在2018年(nian)(nian)至2022年(nian)(nian)期間，變(bian)壓器專(zhuan)利申請數量整體呈波動趨(qu)勢，其中(zhong)2020年(nian)(nian)全(quan)行(xing)業申請最多，全(quan)年(nian)(nian)共申請了13673項變(bian)壓器專(zhuan)利。