常見例句It is developed the restriking die to achieve once the precision of dimension form and position of end-cap. It is simple in construction and feasible. 根據(jù)端蓋的特殊要求;設(shè)計了一副整形模;一次性地達(dá)到了制件的尺寸精度和各部形位精度.;模具結(jié)構(gòu)簡單;實(shí)踐證明可行When vacuum switches switch off shunt capacitors, restriking overvoltage may be brought about which will threaten insulation of equipments severely. 摘要真空開關(guān)在開斷并聯(lián)電容器組時可能產(chǎn)生重?fù)舸┻^電壓,對設(shè)備絕緣造成嚴(yán)重威脅。In this thesis, restriking overvoltage that happens in a 35kV power system is calculated and the factors that may influence the overvoltage are analyzed. 本文研究了35kV系統(tǒng)中切除并聯(lián)無功補(bǔ)償兼濾波裝置時的重燃過電壓,并對影響重燃過電壓大小的因素進(jìn)行了計算分析。When vacuum switches switch off shunt capacitors and HV motors, restriking overvoltage and multi-reburning overvoltage may be brought about and threaten insulation of equipments severely. 真空開關(guān)在開斷并聯(lián)電容器組和高壓電動機(jī)時可能產(chǎn)生重?fù)舸┻^電壓和多次重燃過電壓,對設(shè)備絕緣造成嚴(yán)重威脅。It is showed that magnetic rings of amorphous material on a conductor can notably increase its inductance and make effective suppression on the steepness of the vacuum restriking overvoltage. 試驗顯示,在導(dǎo)線上套上一串非晶材料磁環(huán)能夠顯著增加線路電感,對減小真空開關(guān)重燃過電壓的陡度是有效的。The progress of striking and restriking of the vacuum arc at the contacts in an axial magnetic field has been photographed with a microcomputer-based high-speed camera system for dynamic images. 利用動態(tài)圖像高速微機(jī)系統(tǒng),對真空電弧縱向磁場觸頭燃弧及重燃過程進(jìn)行了動態(tài)拍攝,對比分析了不同開距下宏觀動態(tài)圖像、微觀電子密度和電弧中心光強(qiáng)的不同時域特征。 返回 restriking