接(jie)(jie)(jie)(jie)(jie)觸(chu)(chu)(chu)(chu)(chu)器(qi)(qi)的選(xuan)型(xing)(xing)(xing)主要(yao)需要(yao)確(que)定種類(lei)(lei)，負(fu)載(zai)(zai)(zai)類(lei)(lei)型(xing)(xing)(xing)，主回(hui)(hui)路參數，控制回(hui)(hui)路參數輔助(zhu)觸(chu)(chu)(chu)(chu)(chu)點，以及電(dian)(dian)(dian)氣壽命(ming)，機械壽命(ming)及工作制等多(duo)種情況綜合考慮。選(xuan)型(xing)(xing)(xing)要(yao)點：1、根據使用(yong)目的和要(yao)求按(an)(an)照上述系(xi)列(lie)選(xuan)擇種類(lei)(lei)：注(zhu)意嚴格(ge)區分主回(hui)(hui)路負(fu)載(zai)(zai)(zai)類(lei)(lei)型(xing)(xing)(xing)是(shi)直(zhi)流(liu)(liu)還是(shi)交流(liu)(liu)。交流(liu)(liu)接(jie)(jie)(jie)(jie)(jie)觸(chu)(chu)(chu)(chu)(chu)器(qi)(qi)不(bu)(bu)同于(yu)直(zhi)流(liu)(liu)接(jie)(jie)(jie)(jie)(jie)觸(chu)(chu)(chu)(chu)(chu)器(qi)(qi)， 用(yong)于(yu)直(zhi)流(liu)(liu)負(fu)載(zai)(zai)(zai)時(shi)只適(shi)用(yong)于(yu) DC-1 至 DC-5 負(fu)載(zai)(zai)(zai)，對于(yu) DC-5 以上的直(zhi)流(liu)(liu)負(fu)載(zai)(zai)(zai)建議 使用(yong)直(zhi)流(liu)(liu)接(jie)(jie)(jie)(jie)(jie)觸(chu)(chu)(chu)(chu)(chu)器(qi)(qi)。另(ling)外電(dian)(dian)(dian)容接(jie)(jie)(jie)(jie)(jie)觸(chu)(chu)(chu)(chu)(chu)器(qi)(qi)不(bu)(bu)能(neng)用(yong)普(pu)通(tong)(tong)(tong)交流(liu)(liu)接(jie)(jie)(jie)(jie)(jie)觸(chu)(chu)(chu)(chu)(chu)器(qi)(qi)替代(dai)。2、負(fu)載(zai)(zai)(zai)類(lei)(lei)型(xing)(xing)(xing)和主回(hui)(hui)路參數確(que)定：主回(hui)(hui)路參數主要(yao)是(shi)額(e)定工作電(dian)(dian)(dian)壓、額(e)定電(dian)(dian)(dian)流(liu)(liu)、極(ji)數、通(tong)(tong)(tong)斷(duan)(duan)能(neng)力(li)、絕緣(yuan)電(dian)(dian)(dian)壓和耐受過(guo)載(zai)(zai)(zai)能(neng)力(li)等。尤(you)其要(yao)注(zhu)意負(fu)載(zai)(zai)(zai)類(lei)(lei)型(xing)(xing)(xing)。接(jie)(jie)(jie)(jie)(jie)觸(chu)(chu)(chu)(chu)(chu)器(qi)(qi)可以運(yun)行在不(bu)(bu)同的負(fu)載(zai)(zai)(zai)類(lei)(lei)型(xing)(xing)(xing)下，但是(shi)對應的型(xing)(xing)(xing)號不(bu)(bu)同，不(bu)(bu)能(neng)完全依靠主極(ji)電(dian)(dian)(dian)壓和功率選(xuan)型(xing)(xing)(xing)。配電(dian)(dian)(dian)類(lei)(lei)負(fu)載(zai)(zai)(zai)（阻(zu)性負(fu)載(zai)(zai)(zai)）按(an)(an)照 AC-1 選(xuan)型(xing)(xing)(xing)；普(pu)通(tong)(tong)(tong)電(dian)(dian)(dian)機負(fu)載(zai)(zai)(zai)按(an)(an)照 AC-3 選(xuan)型(xing)(xing)(xing)；繞線電(dian)(dian)(dian)機按(an)(an)照 AC-2 選(xuan)型(xing)(xing)(xing)；對于(yu)頻繁(fan)(fan)起停負(fu)載(zai)(zai)(zai)應按(an)(an)照 AC-4 負(fu)載(zai)(zai)(zai)選(xuan)型(xing)(xing)(xing)，因為此類(lei)(lei)負(fu)載(zai)(zai)(zai)在頻繁(fan)(fan)通(tong)(tong)(tong)斷(duan)(duan)時(shi)會發生觸(chu)(chu)(chu)(chu)(chu)頭熔焊現象，例如頻繁(fan)(fan)正反轉(zhuan)、行車(che)、頻繁(fan)(fan)點動的行業。 另(ling)外對于(yu)4極(ji)接(jie)(jie)(jie)(jie)(jie)觸(chu)(chu)(chu)(chu)(chu)器(qi)(qi)，有主極(ji)2NO+2NC，或者4NO兩大系(xi)列(lie)，不(bu)(bu)能(neng)使用(yong)普(pu)通(tong)(tong)(tong) 3 極(ji)接(jie)(jie)(jie)(jie)(jie)觸(chu)(chu)(chu)(chu)(chu)器(qi)(qi)加輔助(zhu)觸(chu)(chu)(chu)(chu)(chu)點進(jin)行替代(dai)。真(zhen)空接(jie)(jie)(jie)(jie)(jie)觸(chu)(chu)(chu)(chu)(chu)器(qi)(qi)采用(yong)優異材(cai)料(liao)制造，具有較(jiao)長的使用(yong)壽命(ming)和穩(wen)定的性能(neng)。低壓真(zhen)空接(jie)(jie)(jie)(jie)(jie)觸(chu)(chu)(chu)(chu)(chu)器(qi)(qi)工廠

真空接(jie)觸(chu)(chu)(chu)(chu)器(qi)(qi)的滅弧室內屏蔽罩的作(zuo)用(yong)(yong)是，當(dang)(dang)分(fen)斷電(dian)流時(shi)，凝(ning)結觸(chu)(chu)(chu)(chu)頭(tou)(tou)(tou)間隙中(zhong)擴(kuo)散(san)出(chu)來的金(jin)(jin)屬蒸(zheng)汽，有助于(yu)熄弧，還可(ke)以(yi)(yi)防止金(jin)(jin)屬蒸(zheng)汽濺(jian)落(luo)到絕(jue)(jue)緣(yuan)(yuan)(yuan)外殼上(shang)降低(di)其絕(jue)(jue)緣(yuan)(yuan)(yuan)強度。動(dong)(dong)(dong)(dong)觸(chu)(chu)(chu)(chu)頭(tou)(tou)(tou)與(yu)(yu)外殼下端用(yong)(yong)波紋管連接(jie)，動(dong)(dong)(dong)(dong)觸(chu)(chu)(chu)(chu)頭(tou)(tou)(tou)可(ke)以(yi)(yi)上(shang)下運(yun)動(dong)(dong)(dong)(dong)又不會(hui)漏(lou)氣。當(dang)(dang)金(jin)(jin)屬波紋管軸向(xiang)(xiang)(xiang)運(yun)動(dong)(dong)(dong)(dong)時(shi)帶(dai)動(dong)(dong)(dong)(dong)動(dong)(dong)(dong)(dong)觸(chu)(chu)(chu)(chu)頭(tou)(tou)(tou)做分(fen)合(he)(he)(he)閘動(dong)(dong)(dong)(dong)作(zuo)。電(dian)磁操(cao)(cao)作(zuo)機構由(you)鐵(tie)心、線圈、磁極板(ban)、銜(xian)鐵(tie)板(ban)、轉軸、動(dong)(dong)(dong)(dong)臂等組(zu)成。電(dian)磁系統考慮實(shi)際吸(xi)力特性和(he)(he)反(fan)力特性良好配(pei)合(he)(he)(he)，以(yi)(yi)及發(fa)揮(hui)接(jie)觸(chu)(chu)(chu)(chu)器(qi)(qi)運(yun)行時(shi)噪音低(di)、節電(dian)的優點，采(cai)用(yong)(yong)滯(zhi)留(liu)雙(shuang)線圈由(you)起動(dong)(dong)(dong)(dong)和(he)(he)維持(chi)兩(liang)繞組(zu)組(zu)成，通(tong)過(guo)輔助開關切(qie)換，為(wei)了便于(yu)用(yong)(yong)戶(hu)進行交流電(dian)源(yuan)操(cao)(cao)作(zuo)，接(jie)觸(chu)(chu)(chu)(chu)器(qi)(qi)帶(dai)有橋(qiao)式整流裝(zhuang)置(zhi)。真空接(jie)觸(chu)(chu)(chu)(chu)器(qi)(qi)的動(dong)(dong)(dong)(dong)作(zuo)過(guo)程：真空滅弧室垂直安裝(zhuang)在(zai)絕(jue)(jue)緣(yuan)(yuan)(yuan)隔板(ban)上(shang)，室內上(shang)部(bu)為(wei)靜觸(chu)(chu)(chu)(chu)頭(tou)(tou)(tou)、下部(bu)為(wei)動(dong)(dong)(dong)(dong)觸(chu)(chu)(chu)(chu)頭(tou)(tou)(tou)。上(shang)靜觸(chu)(chu)(chu)(chu)桿用(yong)(yong)銅(tong)排(pai)引(yin)出(chu)，下動(dong)(dong)(dong)(dong)觸(chu)(chu)(chu)(chu)桿用(yong)(yong)軟導線引(yin)至(zhi)銅(tong)排(pai)引(yin)出(chu)端。動(dong)(dong)(dong)(dong)觸(chu)(chu)(chu)(chu)頭(tou)(tou)(tou)通(tong)過(guo)導電(dian)桿、觸(chu)(chu)(chu)(chu)頭(tou)(tou)(tou)彈簧和(he)(he)絕(jue)(jue)緣(yuan)(yuan)(yuan)體與(yu)(yu)杠(gang)桿相連。在(zai)分(fen)閘彈簧力的作(zuo)用(yong)(yong)下，杠(gang)桿向(xiang)(xiang)(xiang)反(fan)時(shi)針方向(xiang)(xiang)(xiang)轉動(dong)(dong)(dong)(dong)，它帶(dai)動(dong)(dong)(dong)(dong)動(dong)(dong)(dong)(dong)觸(chu)(chu)(chu)(chu)頭(tou)(tou)(tou)向(xiang)(xiang)(xiang)下運(yun)動(dong)(dong)(dong)(dong)，靜、動(dong)(dong)(dong)(dong)觸(chu)(chu)(chu)(chu)頭(tou)(tou)(tou)被分(fen)開。合(he)(he)(he)閘時(shi)，將(jiang)合(he)(he)(he)閘電(dian)磁鐵(tie)線圈通(tong)電(dian)，銜(xian)鐵(tie)向(xiang)(xiang)(xiang)右吸(xi)合(he)(he)(he)，杠(gang)桿順時(shi)針方向(xiang)(xiang)(xiang)轉動(dong)(dong)(dong)(dong)，通(tong)過(guo)絕(jue)(jue)緣(yuan)(yuan)(yuan)體、觸(chu)(chu)(chu)(chu)頭(tou)(tou)(tou)彈簧使動(dong)(dong)(dong)(dong)觸(chu)(chu)(chu)(chu)頭(tou)(tou)(tou)向(xiang)(xiang)(xiang)上(shang)運(yun)動(dong)(dong)(dong)(dong)，與(yu)(yu)靜觸(chu)(chu)(chu)(chu)頭(tou)(tou)(tou)閉合(he)(he)(he)。低(di)壓(ya)真空接(jie)觸(chu)(chu)(chu)(chu)器(qi)(qi)工廠真空接(jie)觸(chu)(chu)(chu)(chu)器(qi)(qi)可(ke)以(yi)(yi)通(tong)過(guo)手動(dong)(dong)(dong)(dong)或(huo)電(dian)磁控制來實(shi)現(xian)開合(he)(he)(he)操(cao)(cao)作(zuo)，具有較(jiao)大(da)的靈活性。

接(jie)觸(chu)(chu)器(qi)在運(yun)(yun)(yun)行中常(chang)見的(de)(de)故(gu)障(zhang)有以下幾(ji)種：1、線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)燒(shao)毀(hui)(hui)(hui)或者(zhe)損(sun)(sun)壞2、觸(chu)(chu)頭融焊3、運(yun)(yun)(yun)行中噪音較大(da)(da)4、線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)通電(dian)(dian)(dian)(dian)(dian)(dian)后接(jie)觸(chu)(chu)器(qi)主(zhu)觸(chu)(chu)頭不吸合5、線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)斷電(dian)(dian)(dian)(dian)(dian)(dian)后接(jie)觸(chu)(chu)器(qi)主(zhu)觸(chu)(chu)頭分斷。具體原因(yin)分析(xi)如(ru)下：1.線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)燒(shao)毀(hui)(hui)(hui)或者(zhe)損(sun)(sun)壞。這(zhe)類故(gu)障(zhang)出現的(de)(de)頻次比較高(gao)。主(zhu)要(yao)是(shi)由于(yu)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)兩(liang)端(duan)(duan)的(de)(de)供(gong)(gong)電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)不正(zheng)確的(de)(de)導(dao)致的(de)(de)。當(dang)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)兩(liang)端(duan)(duan)控(kong)制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)偏(pian)低(di)，當(dang)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)低(di)到一定程度(du)(du)，鐵芯就(jiu)不能吸合，此時(shi)(shi)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)中的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)流是(shi)正(zheng)常(chang)維持電(dian)(dian)(dian)(dian)(dian)(dian)流的(de)(de)幾(ji)倍(bei)(bei) 甚至幾(ji)十倍(bei)(bei)，時(shi)(shi)間長了，線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)就(jiu)會(hui)(hui)因(yin)過(guo)度(du)(du)發熱(re)而損(sun)(sun)毀(hui)(hui)(hui)！當(dang)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)供(gong)(gong)電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)正(zheng)常(chang)，但是(shi)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)控(kong)制(zhi)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)過(guo)長，由于(yu)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)路壓(ya)(ya)降的(de)(de)影響，導(dao)致實際(ji)接(jie)觸(chu)(chu)器(qi)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)兩(liang)端(duan)(duan)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)偏(pian)低(di)，時(shi)(shi)間長了也會(hui)(hui)導(dao)致線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)過(guo)熱(re)而損(sun)(sun)壞。線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)接(jie)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)端(duan)(duan)子上的(de)(de)控(kong)制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)偏(pian)高(gao)（大(da)(da)于(yu)1.1Us）導(dao)致線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)過(guo)熱(re)而燒(shao)毀(hui)(hui)(hui)。比如(ru)將380V電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)施加于(yu)220V線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)，大(da)(da)約15分鐘左右(you)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)就(jiu)會(hui)(hui)燒(shao)壞，電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)越(yue)高(gao)，線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)燒(shao)壞所需時(shi)(shi)間越(yue)短。還有一些物理器(qi)件上的(de)(de)原因(yin)，在線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)制(zhi)造(zao)，運(yun)(yun)(yun)輸和安(an)裝過(guo)程中，碰撞或者(zhe)產品(pin)跌落(luo)造(zao)成漆包線(xian)(xian)(xian)(xian)(xian)(xian)(xian)與接(jie)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)端(duan)(duan)子連接(jie)處機(ji)械損(sun)(sun)傷(shang)，工作一段時(shi)(shi)間后損(sun)(sun)傷(shang)處燒(shao)斷。

同為中壓電(dian)(dian)力設備家族的(de)(de)(de)(de)(de)成(cheng)員，斷路(lu)器(qi)和(he)(he)接(jie)觸(chu)器(qi)這“兄弟倆(lia)”的(de)(de)(de)(de)(de)應(ying)(ying)(ying)用(yong)(yong)(yong)特點(dian)卻各有千秋。與斷路(lu)器(qi)不同的(de)(de)(de)(de)(de)是，接(jie)觸(chu)器(qi)并不承擔故(gu)障時(shi)較大短路(lu)電(dian)(dian)流的(de)(de)(de)(de)(de)緊(jin)急分斷，而主要(yao)(yao)用(yong)(yong)(yong)于(yu)正(zheng)(zheng)常(chang)場(chang)景下的(de)(de)(de)(de)(de)電(dian)(dian)流開(kai)合；同時(shi)，與斷路(lu)器(qi)相比，接(jie)觸(chu)器(qi)需要(yao)(yao)面(mian)對(dui)更加頻繁(fan)(fan)的(de)(de)(de)(de)(de)操(cao)作(zuo)(zuo)。例如，在(zai)(zai)新(xin)能(neng)源行(xing)業(ye)和(he)(he)電(dian)(dian)廠中對(dui)風機(ji)、水泵類負載進(jin)行(xing)頻繁(fan)(fan)操(cao)作(zuo)(zuo)，在(zai)(zai)重工(gong)業(ye)中用(yong)(yong)(yong)于(yu)電(dian)(dian)動機(ji)、變(bian)(bian)壓器(qi)和(he)(he)電(dian)(dian)容器(qi)組的(de)(de)(de)(de)(de)頻繁(fan)(fan)啟動和(he)(he)投切，或(huo)是在(zai)(zai)起重、港機(ji)等(deng)OEM行(xing)業(ye)中用(yong)(yong)(yong)于(yu)動力操(cao)作(zuo)(zuo)裝(zhuang)置(zhi)。基于(yu)這些特點(dian)，性(xing)能(neng)提升、應(ying)(ying)(ying)用(yong)(yong)(yong)擴展和(he)(he)成(cheng)本優化(hua)這三大需求(qiu)便成(cheng)為了(le)行(xing)業(ye)用(yong)(yong)(yong)戶對(dui)接(jie)觸(chu)器(qi)的(de)(de)(de)(de)(de)重要(yao)(yao)關注點(dian)。首(shou)先，要(yao)(yao)在(zai)(zai)中壓場(chang)景中勝任(ren)頻繁(fan)(fan)的(de)(de)(de)(de)(de)開(kai)斷操(cao)作(zuo)(zuo)，設備本身(shen)過硬(ying)的(de)(de)(de)(de)(de)性(xing)能(neng)參(can)數“功底”自然必不可少；其次(ci)，接(jie)觸(chu)器(qi)應(ying)(ying)(ying)用(yong)(yong)(yong)場(chang)景十(shi)分豐富(fu)，從高海拔(ba)(ba)、大溫差的(de)(de)(de)(de)(de)新(xin)能(neng)源應(ying)(ying)(ying)用(yong)(yong)(yong)，到使用(yong)(yong)(yong)條件(jian)極其嚴(yan)苛(ke)的(de)(de)(de)(de)(de)石化(hua)、冶(ye)金、礦業(ye)等(deng)重工(gong)業(ye)，再(zai)到高鹽度(du)、高濕度(du)的(de)(de)(de)(de)(de)港口、船舶(bo)行(xing)業(ye)，需要(yao)(yao)接(jie)觸(chu)器(qi)經受住種種“嚴(yan)峻(jun)考驗”；之后，一旦要(yao)(yao)進(jin)行(xing)設備的(de)(de)(de)(de)(de)替(ti)換和(he)(he)更新(xin)，用(yong)(yong)(yong)戶往往希望新(xin)設備具備很好的(de)(de)(de)(de)(de)兼容性(xing)和(he)(he)適用(yong)(yong)(yong)性(xing)，例如在(zai)(zai)配(pei)柜尺寸等(deng)方面(mian)保持不變(bian)(bian)，避免產生(sheng)額(e)外(wai)成(cheng)本。真空接(jie)觸(chu)器(qi)可在(zai)(zai)高海拔(ba)(ba)地(di)區正(zheng)(zheng)常(chang)工(gong)作(zuo)(zuo)，適用(yong)(yong)(yong)于(yu)各種環境條件(jian)下的(de)(de)(de)(de)(de)應(ying)(ying)(ying)用(yong)(yong)(yong)。

按有無(wu)(wu)(wu)觸(chu)點(dian)(dian)分，可分為(wei)有觸(chu)點(dian)(dian)接(jie)觸(chu)器(qi)(qi)和無(wu)(wu)(wu)觸(chu)點(dian)(dian)接(jie)觸(chu)器(qi)(qi)。常見(jian)的(de)(de)(de)(de)接(jie)觸(chu)器(qi)(qi)多(duo)為(wei)有觸(chu)點(dian)(dian)接(jie)觸(chu)器(qi)(qi)，而無(wu)(wu)(wu)觸(chu)點(dian)(dian)接(jie)觸(chu)器(qi)(qi)屬(shu)于電子技術應用(yong)的(de)(de)(de)(de)產物，一般(ban)采用(yong)晶閘(zha)管作(zuo)為(wei)回(hui)路的(de)(de)(de)(de)通斷(duan)元件。由于可控硅導通時所需的(de)(de)(de)(de)觸(chu)發電壓很(hen)小，而且回(hui)路通斷(duan)時無(wu)(wu)(wu)火花產生，因(yin)而可用(yong)于高操作(zuo)頻率的(de)(de)(de)(de)設(she)備和易燃、易爆、無(wu)(wu)(wu)噪聲的(de)(de)(de)(de)場合(he)。一般(ban)選接(jie)觸(chu)器(qi)(qi)容量如是(shi)阻性負(fu)載(zai)，按接(jie)觸(chu)器(qi)(qi)容量的(de)(de)(de)(de)百分之(zhi)八十算。如是(shi)電機(ji)之(zhi)類的(de)(de)(de)(de)感性負(fu)載(zai) 接(jie)觸(chu)器(qi)(qi)的(de)(de)(de)(de)額定電流應是(shi)電機(ji)電流的(de)(de)(de)(de)1.5到(dao)2倍，再大一點(dian)(dian)更好。真空接(jie)觸(chu)器(qi)(qi)可以實現遠程(cheng)控制和監測(ce)，便于遠程(cheng)操作(zuo)和系統集成。深圳單極真空接(jie)觸(chu)器(qi)(qi)生產商(shang)

真空(kong)接觸器(qi)的觸點材(cai)料不易產生燒蝕和氧化，保持長期(qi)穩定的接觸性能。低壓(ya)真空(kong)接觸器(qi)工(gong)廠(chang)

那么真(zhen)空接(jie)(jie)(jie)(jie)(jie)觸器(qi)到(dao)底(di)在(zai)變電(dian)(dian)站中(zhong)(zhong)(zhong)具體的(de)(de)應用是什么呢？其中(zhong)(zhong)(zhong)有(you)一種基于中(zhong)(zhong)(zhong)電(dian)(dian)阻(zu)(zu)投切(qie)的(de)(de)小電(dian)(dian)流(liu)(liu)(liu)接(jie)(jie)(jie)(jie)(jie)地(di)(di)系(xi)統故(gu)障(zhang)(zhang)選(xuan)(xuan)線(xian)(xian)技術。投切(qie)中(zhong)(zhong)(zhong)電(dian)(dian)阻(zu)(zu)選(xuan)(xuan)線(xian)(xian)原理是：當系(xi)統中(zhong)(zhong)(zhong)某條線(xian)(xian)路(lu)出(chu)(chu)現(xian)單相接(jie)(jie)(jie)(jie)(jie)地(di)(di)故(gu)障(zhang)(zhang)時(shi)(shi)，系(xi)統的(de)(de)零(ling)(ling)序(xu)電(dian)(dian)壓(ya)(ya)以(yi)及中(zhong)(zhong)(zhong)性(xing)點處的(de)(de)電(dian)(dian)壓(ya)(ya)出(chu)(chu)現(xian)升高(gao)，消(xiao)弧線(xian)(xian)圈控制器(qi)根(gen)據(ju)PT開口三角(jiao)電(dian)(dian)壓(ya)(ya)大于設定值或系(xi)統中(zhong)(zhong)(zhong)性(xing)點電(dian)(dian)壓(ya)(ya)時(shi)(shi)，判(pan)定此時(shi)(shi)發生(sheng)(sheng)了接(jie)(jie)(jie)(jie)(jie)地(di)(di)故(gu)障(zhang)(zhang)，并(bing)根(gen)據(ju)預先(xian)設定的(de)(de)策(ce)略啟動故(gu)障(zhang)(zhang)選(xuan)(xuan)線(xian)(xian)系(xi)統。當檢測單相接(jie)(jie)(jie)(jie)(jie)地(di)(di)故(gu)障(zhang)(zhang)發生(sheng)(sheng)后，延(yan)長一段時(shi)(shi)間以(yi)避開瞬時(shi)(shi)故(gu)障(zhang)(zhang)及故(gu)障(zhang)(zhang)暫態(tai)過程，然后投入中(zhong)(zhong)(zhong)電(dian)(dian)阻(zu)(zu)，再延(yan)時(shi)(shi)若干(gan)毫(hao)秒確保選(xuan)(xuan)線(xian)(xian)裝置采樣穩態(tai)數據(ju)后再切(qie)除中(zhong)(zhong)(zhong)值電(dian)(dian)阻(zu)(zu)，由于發生(sheng)(sheng)了接(jie)(jie)(jie)(jie)(jie)地(di)(di)故(gu)障(zhang)(zhang)線(xian)(xian)路(lu)的(de)(de)零(ling)(ling)序(xu)電(dian)(dian)流(liu)(liu)(liu)會(hui)有(you)較大的(de)(de)變化(hua)量，而沒(mei)有(you)發生(sheng)(sheng)接(jie)(jie)(jie)(jie)(jie)地(di)(di)故(gu)障(zhang)(zhang)的(de)(de)線(xian)(xian)路(lu)的(de)(de)零(ling)(ling)序(xu)電(dian)(dian)流(liu)(liu)(liu)則變化(hua)較小，對比(bi)各出(chu)(chu)線(xian)(xian)在(zai)中(zhong)(zhong)(zhong)值電(dian)(dian)阻(zu)(zu)投入前(qian)后的(de)(de)零(ling)(ling)序(xu)電(dian)(dian)流(liu)(liu)(liu)變化(hua)量，就(jiu)可(ke)以(yi)進(jin)行正(zheng)確選(xuan)(xuan)線(xian)(xian)。此時(shi)(shi)重點出(chu)(chu)現(xian)了，利用投切(qie)中(zhong)(zhong)(zhong)電(dian)(dian)阻(zu)(zu)選(xuan)(xuan)線(xian)(xian)的(de)(de)技術，在(zai)確定故(gu)障(zhang)(zhang)線(xian)(xian)路(lu)的(de)(de)過程中(zhong)(zhong)(zhong)，需(xu)要頻繁的(de)(de)投入、切(qie)除中(zhong)(zhong)(zhong)電(dian)(dian)阻(zu)(zu)，好熟悉的(de)(de)詞匯，具備這項功能的(de)(de)東西就(jiu)是----真(zhen)空接(jie)(jie)(jie)(jie)(jie)觸器(qi)。低壓(ya)(ya)真(zhen)空接(jie)(jie)(jie)(jie)(jie)觸器(qi)工廠

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