接(jie)觸(chu)(chu)(chu)(chu)器(qi)(qi)作(zuo)(zuo)為(wei)通斷(duan)(duan)負(fu)(fu)載(zai)電(dian)(dian)(dian)(dian)(dian)源的(de)(de)(de)設備，接(jie)觸(chu)(chu)(chu)(chu)器(qi)(qi)的(de)(de)(de)選用應(ying)按滿足(zu)被控(kong)制(zhi)設備的(de)(de)(de)要(yao)求進行，除額(e)定(ding)(ding)工作(zuo)(zuo)電(dian)(dian)(dian)(dian)(dian)壓與(yu)被控(kong)設備的(de)(de)(de)額(e)定(ding)(ding)工作(zuo)(zuo)電(dian)(dian)(dian)(dian)(dian)壓相(xiang)同外，被控(kong)設備的(de)(de)(de)負(fu)(fu)載(zai)功率(lv)、使用類別(bie)、控(kong)制(zhi)方(fang)(fang)式(shi)、操作(zuo)(zuo)頻率(lv)、工作(zuo)(zuo)壽命、安(an)裝方(fang)(fang)式(shi)、安(an)裝尺寸以及經濟性是選擇的(de)(de)(de)依(yi)據。選用原(yuan)則如下： （1）交流(liu)(liu)(liu)接(jie)觸(chu)(chu)(chu)(chu)器(qi)(qi)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)壓等級(ji)要(yao)和(he)負(fu)(fu)載(zai)相(xiang)同，選用的(de)(de)(de)接(jie)觸(chu)(chu)(chu)(chu)器(qi)(qi)類型要(yao)和(he)負(fu)(fu)載(zai)相(xiang)適應(ying)。 （2）負(fu)(fu)載(zai)的(de)(de)(de)計算(suan)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)要(yao)符合接(jie)觸(chu)(chu)(chu)(chu)器(qi)(qi)的(de)(de)(de)容量等級(ji)，即(ji)計算(suan)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)小于等于接(jie)觸(chu)(chu)(chu)(chu)器(qi)(qi)的(de)(de)(de)額(e)定(ding)(ding)工作(zuo)(zuo)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)。接(jie)觸(chu)(chu)(chu)(chu)器(qi)(qi)的(de)(de)(de)接(jie)通電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)大(da)于負(fu)(fu)載(zai)的(de)(de)(de)啟動(dong)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)，分(fen)(fen)斷(duan)(duan)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)大(da)于負(fu)(fu)載(zai)運行時(shi)分(fen)(fen)斷(duan)(duan)需要(yao)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)，負(fu)(fu)載(zai)的(de)(de)(de)計算(suan)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)要(yao)考慮(lv)實際工作(zuo)(zuo)環境和(he)工況(kuang)，對于啟動(dong)時(shi)間(jian)長的(de)(de)(de)負(fu)(fu)載(zai)，半小時(shi)峰值(zhi)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)不(bu)能超過(guo)(guo)約定(ding)(ding)發熱(re)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)。 （3）按短(duan)(duan)時(shi)的(de)(de)(de)動(dong)、熱(re)穩定(ding)(ding)校(xiao)驗(yan)。線路的(de)(de)(de)三相(xiang)短(duan)(duan)路電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)不(bu)應(ying)超過(guo)(guo)接(jie)觸(chu)(chu)(chu)(chu)器(qi)(qi)允(yun)許(xu)的(de)(de)(de)動(dong)、熱(re)穩定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)，當使用接(jie)觸(chu)(chu)(chu)(chu)器(qi)(qi)斷(duan)(duan)開短(duan)(duan)路電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)時(shi)，還應(ying)校(xiao)驗(yan)接(jie)觸(chu)(chu)(chu)(chu)器(qi)(qi)的(de)(de)(de)分(fen)(fen)斷(duan)(duan)能力。 高(gao)壓真(zhen)空接(jie)觸(chu)(chu)(chu)(chu)器(qi)(qi)具(ju)有較高(gao)的(de)(de)(de)絕(jue)緣水平，能夠(gou)有效(xiao)防止(zhi)電(dian)(dian)(dian)(dian)(dian)擊事(shi)故發生。河北五級(ji)交流(liu)(liu)(liu)高(gao)壓真(zhen)空接(jie)觸(chu)(chu)(chu)(chu)器(qi)(qi)定(ding)(ding)做

接(jie)(jie)(jie)(jie)(jie)(jie)(jie)觸(chu)(chu)(chu)(chu)器(qi)(qi)(qi)(qi)的(de)分(fen)類(lei)(lei)：交流接(jie)(jie)(jie)(jie)(jie)(jie)(jie)觸(chu)(chu)(chu)(chu)器(qi)(qi)(qi)(qi)的(de)種(zhong)類(lei)(lei)很(hen)多，其分(fen)類(lei)(lei)方法(fa)也(ye)不盡相同。按照一(yi)般的(de)分(fen)類(lei)(lei)方法(fa)，大致有以下幾種(zhong)。（1）按主(zhu)(zhu)觸(chu)(chu)(chu)(chu)點(dian)極(ji)(ji)(ji)數分(fen) 可分(fen)為(wei)單極(ji)(ji)(ji)、雙極(ji)(ji)(ji)、三(san)極(ji)(ji)(ji)、四(si)極(ji)(ji)(ji)和(he)五(wu)極(ji)(ji)(ji)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)觸(chu)(chu)(chu)(chu)器(qi)(qi)(qi)(qi)。單極(ji)(ji)(ji)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)觸(chu)(chu)(chu)(chu)器(qi)(qi)(qi)(qi)主(zhu)(zhu)要用(yong)于(yu)(yu)單相負(fu)(fu)荷(he)，如(ru)照明(ming)負(fu)(fu)荷(he)、焊機(ji)等(deng)，在(zai)(zai)電(dian)動(dong)(dong)機(ji)能(neng)耗(hao)制(zhi)(zhi)動(dong)(dong)中也(ye)可采用(yong)；雙極(ji)(ji)(ji)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)觸(chu)(chu)(chu)(chu)器(qi)(qi)(qi)(qi)用(yong)于(yu)(yu)繞線式(shi)異步電(dian)機(ji)的(de)轉子回(hui)路中，起(qi)動(dong)(dong)時用(yong)于(yu)(yu)短(duan)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)起(qi)動(dong)(dong)繞組(zu)；三(san)極(ji)(ji)(ji)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)觸(chu)(chu)(chu)(chu)器(qi)(qi)(qi)(qi)用(yong)于(yu)(yu)三(san)相負(fu)(fu)荷(he)，例如(ru)在(zai)(zai)電(dian)動(dong)(dong)機(ji)的(de)控制(zhi)(zhi)及(ji)其它場(chang)合，使(shi)用(yong)較為(wei)普遍；四(si)極(ji)(ji)(ji)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)觸(chu)(chu)(chu)(chu)器(qi)(qi)(qi)(qi)主(zhu)(zhu)要用(yong)于(yu)(yu)三(san)相四(si)線制(zhi)(zhi)的(de)照明(ming)線路，也(ye)可用(yong)來控制(zhi)(zhi)雙回(hui)路電(dian)動(dong)(dong)機(ji)負(fu)(fu)載；五(wu)極(ji)(ji)(ji)交流接(jie)(jie)(jie)(jie)(jie)(jie)(jie)觸(chu)(chu)(chu)(chu)器(qi)(qi)(qi)(qi)用(yong)來組(zu)成自耦補償起(qi)動(dong)(dong)器(qi)(qi)(qi)(qi)或控制(zhi)(zhi)雙籠型電(dian)動(dong)(dong)機(ji)，以變(bian)換繞組(zu)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)法(fa)。（2）按滅(mie)弧介質(zhi)分(fen) 可分(fen)為(wei)空(kong)氣(qi)式(shi)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)觸(chu)(chu)(chu)(chu)器(qi)(qi)(qi)(qi)、真空(kong)式(shi)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)觸(chu)(chu)(chu)(chu)器(qi)(qi)(qi)(qi)等(deng)。依靠空(kong)氣(qi)絕(jue)緣的(de)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)觸(chu)(chu)(chu)(chu)器(qi)(qi)(qi)(qi)用(yong)于(yu)(yu)一(yi)般負(fu)(fu)載，而(er)采用(yong)真空(kong)絕(jue)緣的(de)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)觸(chu)(chu)(chu)(chu)器(qi)(qi)(qi)(qi)常用(yong)在(zai)(zai)煤礦(kuang)、石油(you)、化工(gong)企業及(ji)電(dian)壓在(zai)(zai)660V和(he)1140V等(deng)一(yi)些特(te)殊的(de)場(chang)合。成都(dou)移(yi)開式(shi)熔斷器(qi)(qi)(qi)(qi)廠(chang)家排名真空(kong)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)觸(chu)(chu)(chu)(chu)器(qi)(qi)(qi)(qi)的(de)操縱桿(gan)具有防誤操作功(gong)能(neng)，避免(mian)意外開關動(dong)(dong)作。

當接(jie)(jie)通低(di)壓變壓器(qi)(qi)負載時(shi)，變壓器(qi)(qi)因為二次側(ce)的電(dian)(dian)(dian)(dian)(dian)極短(duan)(duan)路(lu)而(er)出現(xian)(xian)短(duan)(duan)時(shi)的陡峭(qiao)大(da)電(dian)(dian)(dian)(dian)(dian)流(liu)，在(zai)一(yi)次側(ce)出現(xian)(xian)較大(da)電(dian)(dian)(dian)(dian)(dian)流(liu)，可(ke)(ke)(ke)達額定電(dian)(dian)(dian)(dian)(dian)流(liu)的15～20倍，它與(yu)變壓器(qi)(qi)的繞(rao)組布置及(ji)鐵心(xin)特性有關。當電(dian)(dian)(dian)(dian)(dian)焊機(ji)頻繁地產生突發(fa)性的強電(dian)(dian)(dian)(dian)(dian)流(liu)，從而(er)使變壓器(qi)(qi)的初級(ji)側(ce)的開(kai)關承受巨(ju)大(da)的應(ying)力和電(dian)(dian)(dian)(dian)(dian)流(liu)，所以(yi)必須按(an)照變壓器(qi)(qi)的額定功率(lv)下(xia)電(dian)(dian)(dian)(dian)(dian)極短(duan)(duan)路(lu)時(shi)一(yi)次側(ce)的短(duan)(duan)路(lu)電(dian)(dian)(dian)(dian)(dian)流(liu)及(ji)焊接(jie)(jie)頻率(lv)來(lai)選擇接(jie)(jie)觸器(qi)(qi)，即接(jie)(jie)通電(dian)(dian)(dian)(dian)(dian)流(liu)大(da)于二次側(ce)短(duan)(duan)路(lu)時(shi)一(yi)次側(ce)電(dian)(dian)(dian)(dian)(dian)流(liu)。電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)用(yong)(yong)接(jie)(jie)觸器(qi)(qi)根據電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)使用(yong)(yong)情況(kuang)及(ji)電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)類別(bie)可(ke)(ke)(ke)分(fen)別(bie)選用(yong)(yong)AC-2～4，對于啟動(dong)(dong)電(dian)(dian)(dian)(dian)(dian)流(liu)在(zai)6倍額定電(dian)(dian)(dian)(dian)(dian)流(liu)，分(fen)斷電(dian)(dian)(dian)(dian)(dian)流(liu)為額定電(dian)(dian)(dian)(dian)(dian)流(liu)下(xia)可(ke)(ke)(ke)選用(yong)(yong)AC-3，如風機(ji)水(shui)泵等，可(ke)(ke)(ke)采(cai)用(yong)(yong)查表法及(ji)選用(yong)(yong)曲線法，根據樣本及(ji)手冊(ce)選用(yong)(yong)，不用(yong)(yong)再計算。繞(rao)線式電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)接(jie)(jie)通電(dian)(dian)(dian)(dian)(dian)流(liu)及(ji)分(fen)斷電(dian)(dian)(dian)(dian)(dian)流(liu)都是(shi)2.5倍額定電(dian)(dian)(dian)(dian)(dian)流(liu)，一(yi)般啟動(dong)(dong)時(shi)在(zai)轉(zhuan)(zhuan)子中串入電(dian)(dian)(dian)(dian)(dian)阻以(yi)限制啟動(dong)(dong)電(dian)(dian)(dian)(dian)(dian)流(liu)，增(zeng)加(jia)啟動(dong)(dong)轉(zhuan)(zhuan)矩，使用(yong)(yong)類別(bie)AC-2，可(ke)(ke)(ke)選用(yong)(yong)轉(zhuan)(zhuan)動(dong)(dong)式接(jie)(jie)觸器(qi)(qi)。

當電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)處于(yu)點動(dong)(dong)(dong)(dong)(dong)、需反(fan)向運轉(zhuan)及制動(dong)(dong)(dong)(dong)(dong)時(shi)，接(jie)(jie)通(tong)(tong)(tong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)為(wei)(wei)6Ie，使(shi)用(yong)類別(bie)為(wei)(wei)AC-4，它(ta)比AC-3嚴酷的(de)(de)(de)多。可(ke)根據使(shi)用(yong)類別(bie)AC-4下列(lie)出電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)大(da)小(xiao)(xiao)計(ji)算電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)的(de)(de)(de)功(gong)率(lv)(lv)。公(gong)式如下：Pe=3UeIeCOS￠η,Ue：電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)額(e)(e)定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)，Ie：電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)額(e)(e)定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓，COS￠：功(gong)率(lv)(lv)因數，η：電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)效率(lv)(lv)。如果允許(xu)觸(chu)(chu)(chu)頭(tou)(tou)壽命短，AC-4電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)可(ke)適當加大(da)，在(zai)很低的(de)(de)(de)通(tong)(tong)(tong)斷(duan)頻率(lv)(lv)下改為(wei)(wei)AC-3類。根據電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)保護配合(he)的(de)(de)(de)要求(qiu)，堵轉(zhuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)以下電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)應(ying)(ying)該由控制電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)接(jie)(jie)通(tong)(tong)(tong)和(he)分(fen)斷(duan)。大(da)多數Y系列(lie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)的(de)(de)(de)堵轉(zhuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)≤7Ie，因此(ci)(ci)選(xuan)擇接(jie)(jie)觸(chu)(chu)(chu)器(qi)(qi)時(shi)要考慮分(fen)、合(he)堵轉(zhuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)。規范規定(ding)(ding)：電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)運行在(zai)AC-3下，接(jie)(jie)觸(chu)(chu)(chu)器(qi)(qi)額(e)(e)定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)不(bu)大(da)于(yu)630A時(shi)，接(jie)(jie)觸(chu)(chu)(chu)器(qi)(qi)應(ying)(ying)當能承(cheng)受8倍(bei)額(e)(e)定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)至(zhi)少10秒。對(dui)于(yu)一般(ban)設(she)備用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)，工(gong)(gong)(gong)作(zuo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)小(xiao)(xiao)于(yu)額(e)(e)定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)，啟動(dong)(dong)(dong)(dong)(dong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)雖然達到(dao)額(e)(e)定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)的(de)(de)(de)4～7倍(bei)，但時(shi)間短，對(dui)接(jie)(jie)觸(chu)(chu)(chu)器(qi)(qi)的(de)(de)(de)觸(chu)(chu)(chu)頭(tou)(tou)損傷(shang)不(bu)大(da)，接(jie)(jie)觸(chu)(chu)(chu)器(qi)(qi)在(zai)設(she)計(ji)時(shi)已考慮此(ci)(ci)因數，一般(ban)選(xuan)用(yong)觸(chu)(chu)(chu)頭(tou)(tou)容(rong)(rong)量大(da)于(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)額(e)(e)定(ding)(ding)容(rong)(rong)量的(de)(de)(de)1.25倍(bei)即可(ke)。對(dui)于(yu)在(zai)特殊情況下工(gong)(gong)(gong)作(zuo)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)要根據實際(ji)工(gong)(gong)(gong)況考慮。如電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)葫蘆屬于(yu)沖擊性(xing)負載，重(zhong)載啟停頻繁，反(fan)接(jie)(jie)制動(dong)(dong)(dong)(dong)(dong)等，所以計(ji)算工(gong)(gong)(gong)作(zuo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)要乘以相應(ying)(ying)倍(bei)數，由于(yu)重(zhong)載啟停頻繁，選(xuan)用(yong)4倍(bei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)額(e)(e)定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)，通(tong)(tong)(tong)常重(zhong)載下反(fan)接(jie)(jie)制動(dong)(dong)(dong)(dong)(dong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)為(wei)(wei)啟動(dong)(dong)(dong)(dong)(dong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)2倍(bei)，所以對(dui)于(yu)此(ci)(ci)工(gong)(gong)(gong)況要選(xuan)用(yong)8倍(bei)額(e)(e)定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)。交流(liu)高(gao)壓真(zhen)空接(jie)(jie)觸(chu)(chu)(chu)器(qi)(qi)能夠防止交流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路過載和(he)短路故障。

低(di)壓(ya)交(jiao)流(liu)接觸(chu)(chu)器(qi)的常見(jian)故(gu)障(zhang)分(fen)析及維(wei)修：接觸(chu)(chu)器(qi)在工作過(guo)(guo)(guo)程中(zhong)可以(yi)頻繁(fan)通斷(duan)，在使(shi)(shi)(shi)用(yong)過(guo)(guo)(guo)程中(zhong)會對接觸(chu)(chu)器(qi)觸(chu)(chu)頭(tou)(tou)造(zao)(zao)成磨損。同時(shi)(shi)(shi)(shi)，有(you)時(shi)(shi)(shi)(shi)候(hou)使(shi)(shi)(shi)用(yong)不當，或者(zhe)在相對惡劣環境中(zhong)使(shi)(shi)(shi)用(yong)，也會使(shi)(shi)(shi)接觸(chu)(chu)器(qi)的壽命縮短(duan)，引起故(gu)障(zhang)，因(yin)此，在使(shi)(shi)(shi)用(yong)的時(shi)(shi)(shi)(shi)候(hou)，也要(yao)根(gen)據實際情(qing)(qing)況(kuang)來進(jin)行選(xuan)擇，并且在使(shi)(shi)(shi)用(yong)時(shi)(shi)(shi)(shi)要(yao)及時(shi)(shi)(shi)(shi)進(jin)行維(wei)護，避免出(chu)現故(gu)障(zhang)后產生更(geng)大的損失(shi)。一(yi)般(ban)情(qing)(qing)況(kuang)下，交(jiao)流(liu)接觸(chu)(chu)器(qi)的常見(jian)故(gu)障(zhang)有(you)觸(chu)(chu)頭(tou)(tou)故(gu)障(zhang)、線圈故(gu)障(zhang)和其(qi)他電(dian)磁機械故(gu)障(zhang)。觸(chu)(chu)頭(tou)(tou)熔焊(han)：動、靜觸(chu)(chu)頭(tou)(tou)吸合(he)的過(guo)(guo)(guo)程中(zhong)，接觸(chu)(chu)面接觸(chu)(chu)電(dian)阻比(bi)較大造(zao)(zao)成觸(chu)(chu)點熔化后焊(han)在一(yi)起，不能(neng)分(fen)斷(duan)，稱為觸(chu)(chu)頭(tou)(tou)熔焊(han)。這種情(qing)(qing)況(kuang)一(yi)般(ban)發生在操(cao)作頻率過(guo)(guo)(guo)高(gao)或者(zhe)過(guo)(guo)(guo)負(fu)(fu)(fu)載(zai)使(shi)(shi)(shi)用(yong)、負(fu)(fu)(fu)載(zai)端短(duan)路、觸(chu)(chu)頭(tou)(tou)彈簧(huang)壓(ya)力(li)過(guo)(guo)(guo)小、機械卡阻等。當出(chu)現這些情(qing)(qing)況(kuang)時(shi)(shi)(shi)(shi)，可以(yi)通過(guo)(guo)(guo)調換(huan)合(he)適的接觸(chu)(chu)器(qi)或減小負(fu)(fu)(fu)載(zai)、排除短(duan)路故(gu)障(zhang)、更(geng)換(huan)觸(chu)(chu)頭(tou)(tou)、調整觸(chu)(chu)頭(tou)(tou)表面壓(ya)力(li)、引起卡阻的因(yin)素去除掉。交(jiao)流(liu)真空接觸(chu)(chu)器(qi)采用(yong)先進(jin)的微(wei)處理器(qi)控(kong)制(zhi)系統(tong)，實現自動化操(cao)作和遠程監(jian)控(kong)。河(he)北(bei)五(wu)級交(jiao)流(liu)高(gao)壓(ya)真空接觸(chu)(chu)器(qi)定做

高壓真空(kong)接觸(chu)器(qi)的觸(chu)點材料符合環保要求，不(bu)會(hui)對環境(jing)產生污染。河北五級(ji)交流高壓真空(kong)接觸(chu)器(qi)定做

電(dian)(dian)(dian)(dian)子技(ji)術的應(ying)用可(ke)以很方便的在(zai)接(jie)(jie)(jie)(jie)觸(chu)器(qi)(qi)(qi)中增添(tian)主電(dian)(dian)(dian)(dian)路(lu)保(bao)護功能，如欠、過電(dian)(dian)(dian)(dian)壓(ya)保(bao)護，斷(duan)相(xiang)保(bao)護、漏電(dian)(dian)(dian)(dian)保(bao)護等(deng)。電(dian)(dian)(dian)(dian)動(dong)機(ji)燒毀事(shi)故中，接(jie)(jie)(jie)(jie)觸(chu)器(qi)(qi)(qi)一(yi)相(xiang)接(jie)(jie)(jie)(jie)觸(chu)不(bu)良的占11％，所以選擇(ze)帶有斷(duan)相(xiang)保(bao)護的斷(duan)路(lu)器(qi)(qi)(qi)、接(jie)(jie)(jie)(jie)觸(chu)器(qi)(qi)(qi)等(deng)電(dian)(dian)(dian)(dian)氣(qi)器(qi)(qi)(qi)件也是十分必要(yao)(yao)的。接(jie)(jie)(jie)(jie)觸(chu)器(qi)(qi)(qi)加(jia)(jia)輔(fu)助(zhu)模(mo)塊可(ke)以滿足一(yi)些特殊要(yao)(yao)求(qiu)(qiu)。加(jia)(jia)機(ji)械連鎖(suo)可(ke)以構成可(ke)逆(ni)(ni)接(jie)(jie)(jie)(jie)觸(chu)器(qi)(qi)(qi)，實現(xian)電(dian)(dian)(dian)(dian)動(dong)機(ji)正反(fan)可(ke)逆(ni)(ni)旋(xuan)轉，或者兩個接(jie)(jie)(jie)(jie)觸(chu)器(qi)(qi)(qi)加(jia)(jia)機(ji)械連鎖(suo)實現(xian)主電(dian)(dian)(dian)(dian)路(lu)電(dian)(dian)(dian)(dian)氣(qi)互鎖(suo)，可(ke)用于變(bian)頻器(qi)(qi)(qi)的變(bian)頻/工(gong)頻切換；加(jia)(jia)氣(qi)延(yan)時(shi)頭和輔(fu)助(zhu)觸(chu)頭組可(ke)以實現(xian)電(dian)(dian)(dian)(dian)動(dong)機(ji)星－三角啟動(dong)；加(jia)(jia)空(kong)氣(qi)延(yan)時(shi)頭可(ke)以構成延(yan)時(shi)接(jie)(jie)(jie)(jie)觸(chu)器(qi)(qi)(qi)。交流接(jie)(jie)(jie)(jie)觸(chu)器(qi)(qi)(qi)的吸(xi)合(he)、斷(duan)開時(shi)振動(dong)比較大，在(zai)安(an)(an)裝(zhuang)時(shi)盡(jin)量(liang)不(bu)要(yao)(yao)和振動(dong)要(yao)(yao)求(qiu)(qiu)比較嚴格的電(dian)(dian)(dian)(dian)氣(qi)設備安(an)(an)裝(zhuang)在(zai)一(yi)個柜(ju)子里，否則要(yao)(yao)采(cai)用防(fang)震措(cuo)施，一(yi)般盡(jin)量(liang)安(an)(an)裝(zhuang)在(zai)柜(ju)子下部。交流接(jie)(jie)(jie)(jie)觸(chu)器(qi)(qi)(qi)的安(an)(an)裝(zhuang)環境要(yao)(yao)符合(he)產品要(yao)(yao)求(qiu)(qiu)，安(an)(an)裝(zhuang)尺寸應(ying)該符合(he)電(dian)(dian)(dian)(dian)氣(qi)安(an)(an)全(quan)距離、接(jie)(jie)(jie)(jie)線規程，而(er)且要(yao)(yao)檢修方便。河(he)北五級(ji)交流高(gao)壓(ya)真(zhen)空(kong)接(jie)(jie)(jie)(jie)觸(chu)器(qi)(qi)(qi)定做

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