国产精品无码永久免费888_久久综合九色综合欧美狠狠_毛片在线播放a_天堂√在线中文最新版8

        三(san)相(xiang)(xiang)異(yi)步電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)(ji)(ji)是(shi)(shi)(shi)(shi)一(yi)種應(ying)用很(hen)廣泛的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)氣拖動(dong)(dong)設備(bei)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)在運行過程中(zhong)，會(hui)因各(ge)種原因造成(cheng)(cheng)損壞(huai)，在這些故(gu)障中(zhong)，缺相(xiang)(xiang)故(gu)障造成(cheng)(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)損壞(huai)占很(hen)大(da)比例(li)，由此而(er)燒毀(hui)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)(ji)(ji)數量是(shi)(shi)(shi)(shi)巨(ju)大(da)的(de)(de)(de)，造成(cheng)(cheng)的(de)(de)(de)經濟損失也是(shi)(shi)(shi)(shi)極為(wei)嚴重的(de)(de)(de)。根據電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)學原理(li)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)在缺相(xiang)(xiang)時．定子繞組流(liu)通的(de)(de)(de)不再是(shi)(shi)(shi)(shi)三(san)相(xiang)(xiang)交流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)。而(er)是(shi)(shi)(shi)(shi)單(dan)相(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)。氣隙中(zhong)的(de)(de)(de)磁(ci)場(chang)由圓(yuan)形(xing)旋轉(zhuan)磁(ci)場(chang)變(bian)為(wei)單(dan)相(xiang)(xiang)脈振(zhen)的(de)(de)(de)磁(ci)場(chang)，一(yi)方面，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)缺相(xiang)(xiang)啟(qi)動(dong)(dong)時，其啟(qi)動(dong)(dong)轉(zhuan)矩為(wei)零．電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)實際上是(shi)(shi)(shi)(shi)處于(yu)(yu)兩相(xiang)(xiang)短路狀態。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)(ji)(ji)繞組嚴重發(fa)熱。破壞(huai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)絕緣，以(yi)致于(yu)(yu)燒毀(hui)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)，影響生產，甚至造成(cheng)(cheng)事故(gu)。另外，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)在缺相(xiang)(xiang)運行時。過載能力已明顯減低(di)．轉(zhuan)差率變(bian)大(da)。定轉(zhuan)子電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)加大(da)，勢必(bi)使繞組發(fa)熱，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)運行極為(wei)不利。防(fang)止三(san)相(xiang)(xiang)異(yi)步電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)(ji)(ji)缺相(xiang)(xiang)運行，是(shi)(shi)(shi)(shi)有很(hen)大(da)的(de)(de)(de)經濟價值。于(yu)(yu)是(shi)(shi)(shi)(shi)。我們(men)從電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)的(de)(de)(de)缺相(xiang)(xiang)機(ji)(ji)(ji)(ji)理(li)人手(shou)，設計出(chu)幾例(li)保護電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路，確(que)保電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)(ji)(ji)的(de)(de)(de)正常運轉(zhuan)。

      上海碩吉電器有限公司是專業生產電動機保護監控裝置的專營企業，我們堅持以質量贏得信譽、以誠信求得發展，以市場需求為導向、讓顧客滿意為宗旨的經營方針，組建了一支具有專業設計、銷售、生產于一體的人才隊伍，為了滿足電動機保護器,智能電機保護器,電機保護監控器器,電機綜合保護器市場需要，公司的技術人員針對國家電力拖動系統做了精心的研究，并結合用戶的反饋意見反復試驗，在他們的共同努力下，精心研制出了具有高科技含量的SJD-YD系列、SJD801系列電動機綜合保護器，SJD550系列電動機保護控制器等產品，我們不斷追求完美，時刻關注消費需求，用心為客戶提供貼心服務。贏得了社會各層的肯定與支持，更贏得了廣大客戶的信賴與厚愛。

文章來源：上海碩(shuo)吉電器有限公司//htjclj.cn/articleshow_142.html