江蘇華辰發明了(le)一種干式變壓(ya)器低壓(ya)箔式線(xian)圈(quan)引(yin)(yin)(yin)線(xian)結(jie)(jie)構及引(yin)(yin)(yin)線(xian)繞(rao)制(zhi)工藝(yi)，涉及變壓(ya)器領域。發明采用(yong)雙層箔分流(liu)疊繞(rao)結(jie)(jie)構纏(chan)繞(rao)，每(mei)層銅(tong)箔采用(yong)單獨的(de)引(yin)(yin)(yin)出結(jie)(jie)構，使(shi)得(de)低壓(ya)線(xian)圈(quan)額定電(dian)流(liu)平分到每(mei)組引(yin)(yin)(yin)線(xian)銅(tong)排上(shang)，有效避免了(le)電(dian)流(liu)過大時導致的(de)銅(tong)排適(shi)用(yong)度小的(de)問題(ti)，同時也有效縮減(jian)了(le)現場使(shi)用(yong)場地。

施(shi)耐德電(dian)(dian)(dian)(dian)氣發明(ming)了一種(zhong)變壓器(qi)(qi)(qi)保(bao)護方(fang)(fang)法、裝置(zhi)、繼電(dian)(dian)(dian)(dian)保(bao)護器(qi)(qi)(qi)及供(gong)(gong)電(dian)(dian)(dian)(dian)系(xi)(xi)統(tong)(tong)。該方(fang)(fang)法提供(gong)(gong)供(gong)(gong)電(dian)(dian)(dian)(dian)系(xi)(xi)統(tong)(tong)的拓撲(pu)結(jie)構與保(bao)護電(dian)(dian)(dian)(dian)流整(zheng)(zheng)定值之間的預(yu)設對應(ying)關系(xi)(xi)，任一繼電(dian)(dian)(dian)(dian)保(bao)護器(qi)(qi)(qi)在獲取(qu)(qu)供(gong)(gong)電(dian)(dian)(dian)(dian)系(xi)(xi)統(tong)(tong)的拓撲(pu)結(jie)構信(xin)息之后，基于該預(yu)設對應(ying)關系(xi)(xi)確(que)定與供(gong)(gong)電(dian)(dian)(dian)(dian)系(xi)(xi)統(tong)(tong)的當前拓撲(pu)結(jie)構對應(ying)的目(mu)標保(bao)護電(dian)(dian)(dian)(dian)流整(zheng)(zheng)定值，還會(hui)獲取(qu)(qu)其所(suo)屬供(gong)(gong)電(dian)(dian)(dian)(dian)子(zi)(zi)系(xi)(xi)統(tong)(tong)內的變壓器(qi)(qi)(qi)的進(jin)線(xian)側電(dian)(dian)(dian)(dian)流以及所(suo)屬供(gong)(gong)電(dian)(dian)(dian)(dian)子(zi)(zi)系(xi)(xi)統(tong)(tong)內的弧(hu)(hu)光(guang)傳感(gan)器(qi)(qi)(qi)的弧(hu)(hu)光(guang)檢測(ce)信(xin)號，在進(jin)線(xian)側電(dian)(dian)(dian)(dian)流大于等(deng)于目(mu)標保(bao)護電(dian)(dian)(dian)(dian)流整(zheng)(zheng)定值，且(qie)弧(hu)(hu)光(guang)檢測(ce)信(xin)號表征檢測(ce)到弧(hu)(hu)光(guang)的情況(kuang)下(xia)，斷(duan)開所(suo)屬供(gong)(gong)電(dian)(dian)(dian)(dian)子(zi)(zi)系(xi)(xi)統(tong)(tong)內的變壓器(qi)(qi)(qi)與供(gong)(gong)電(dian)(dian)(dian)(dian)網絡(luo)的連接(jie)，方(fang)(fang)案兼(jian)顧(gu)保(bao)護靈敏度(du)及保(bao)護穩(wen)定性，能夠解決現有(you)技(ji)術中變壓器(qi)(qi)(qi)保(bao)護方(fang)(fang)法存在的問題。

保變(bian)電(dian)氣發明了一種(zhong)變(bian)壓(ya)器有載開關電(dian)位電(dian)阻的(de)安(an)裝結(jie)構及方法，屬于變(bian)壓(ya)器制作技術領域。發明的(de)有益(yi)效果是：既滿足(zu)安(an)裝需求(qiu)，同(tong)時又能降低(di)開關固定板的(de)強度(du)要(yao)求(qiu)，并(bing)且能充分利用油箱內的(de)空間，方便(bian)引線(xian)的(de)裝配。

特變電工(gong)申請了一種(zhong)“變壓器絕(jue)緣(yuan)件的(de)測試(shi)(shi)工(gong)裝”發明專利(li)。采(cai)用此發明測試(shi)(shi)工(gong)裝能夠得(de)到(dao)(dao)對應不同抽真空階(jie)段的(de)絕(jue)緣(yuan)件樣(yang)品(pin)，以及得(de)到(dao)(dao)對應不同注油階(jie)段的(de)絕(jue)緣(yuan)件樣(yang)品(pin)。

小編(bian)在國家知識(shi)產(chan)權局(ju)網站(zhan)中以“變(bian)(bian)壓(ya)(ya)器”為(wei)“發明名稱”進(jin)行檢索(suo)，發現(xian)截至2023年(nian)10月20日(ri)，變(bian)(bian)壓(ya)(ya)器行業共計有115067項專利。在2018年(nian)至2022年(nian)期間，變(bian)(bian)壓(ya)(ya)器專利申請(qing)(qing)數量整體呈波動趨勢，其(qi)中2020年(nian)全(quan)行業申請(qing)(qing)最多，全(quan)年(nian)共申請(qing)(qing)了13673項變(bian)(bian)壓(ya)(ya)器專利。