接觸器是一種自動化的控制電器。接觸器主要用于頻繁接通或分斷交、直流電路，具有控制容量大，可遠距離操作，配合繼電器可以實現定時操作，聯鎖控制，各種定量控制和失壓及欠壓保護，廣泛應用于自動控制電路，其主要控制對象是電動機，也可用于控制其它電力負載，如電熱器、照明、電焊機、電容器組等。功能特點1、接觸器按被控電流的種類可分為交流接觸器和直流接觸器。交流接觸器又可分為電磁式和真空式兩種。2、電磁式交流接觸器的結構和工作原理(1)結構：接觸器主要由電磁系統、觸點系統、滅弧系統及其它部分組成。①電磁系統：電磁系統包括電磁線圈和鐵心，是接觸器的重要組成部分，依靠它帶動觸點的閉合與斷開。②觸點系統：觸點是接觸器的執行部分，包括主觸點和輔助觸點。主觸點的作用是接通和分斷主回路，控制較大的電流，而輔助觸點是在控制回路中，以滿足各種控制方式的要求。③滅弧系統：滅弧裝置用來保證觸點斷開電路時，產生的電弧可靠的熄滅，減少電弧對觸點的損傷。為了迅速熄滅斷開時的電弧，通常接觸器都裝有滅弧裝置，一般采用半封式縱縫陶土滅弧罩，并配有強磁吹弧回路。④其它部分：有絕緣外殼、彈簧、短路環、傳動機構等。(2)工作原理：當接觸器電磁線圈不通電時，彈簧的反作用力和銜鐵芯的自重使主觸點保持斷開位置。當電磁線圈通過控制回路接通控制電壓(一般為額定電壓)時，電磁力克服彈簧的反作用力將銜鐵吸向靜鐵心，帶動主觸點閉合，接通電路，輔助接點隨之動作。3、交流接觸器的選用與運行維護(1)選用：①主回路觸點的額定電流應大于或等于被控設備的額定電流，控制電動機的接觸器還應考慮電動機的起動電流。為了防止頻繁操作的接觸器主觸點燒蝕，頻繁動作的接觸器額定電流可降低使用。②接觸器的電磁線圈額定電壓有36V、110V、220V、380V等，電磁線圈允許在額定電壓的80%～105%范圍內使用。(2)運行維護：①運行中檢查項目：a、通過的負荷電流是否在接觸器額定值之內；b、接觸器的、分合信號指示是否與電路狀態相符；c、運行聲音是否正常，有無因接觸不良而發出放電聲；d、電磁線圈有無過熱現象，電磁鐵的短路環有無異常；e、滅弧罩有無松動和損傷情況；f、輔助觸點有無燒損情況；g、傳動部分有無損傷；h、周圍運行環境有無不利運行的因素，如振動過大、通風不良、塵埃過多等。②維護：在電氣設備進行維護工作時，應一并對接觸器進行維護工作。外部維護：a、清掃外部灰塵；b、檢查各緊固件是否松動，特別是導體連接部分，防止接觸松動而發熱；

長(chang)城電(dian)器回(hui)收公司上(shang)門(men)回(hui)收各(ge)種型號高低壓電(dian)容(rong)器，自愈式電(dian)容(rong)器，蓄電(dian)池，鎘(ge)鎳電(dian)瓶，電(dian)抗器，ME斷路器，智(zhi)能閘，互感器，放點(dian)線(xian)圈，接(jie)觸器，空(kong)氣開關，電(dian)線(xian)電(dian)纜等(deng)庫存物資。以誠為本，信譽(yu)至上(shang)。回(hui)收，沒極限。歡迎(ying)來電(dian)洽談。

河北(bei)長(chang)城(cheng)電(dian)(dian)(dian)瓷電(dian)(dian)(dian)器(qi)(qi)回(hui)收(shou)有限公司上門(men)回(hui)收(shou)企(qi)事業(ye)單位(wei)及個人處(chu)理(li)的各種型號廢舊電(dian)(dian)(dian)容(rong)(rong)器(qi)(qi),電(dian)(dian)(dian)熱電(dian)(dian)(dian)容(rong)(rong)器(qi)(qi),高(gao)低(di)壓(ya)電(dian)(dian)(dian)容(rong)(rong)器(qi)(qi)，自愈式電(dian)(dian)(dian)容(rong)(rong)器(qi)(qi)，脈(mo)沖電(dian)(dian)(dian)容(rong)(rong)器(qi)(qi),蓄電(dian)(dian)(dian)池(chi)，鎘(ge)鎳電(dian)(dian)(dian)瓶，電(dian)(dian)(dian)抗(kang)器(qi)(qi)，ME斷路(lu)器(qi)(qi)，智(zhi)能閘，互(hu)感器(qi)(qi)，放(fang)點線圈，接觸器(qi)(qi)，空氣(qi)開(kai)關，電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)，多油(you)少油(you)斷路(lu)器(qi)(qi),高(gao)低(di)壓(ya)配電(dian)(dian)(dian)柜,高(gao)低(di)壓(ya)開(kai)關，變壓(ya)器(qi)(qi),電(dian)(dian)(dian)機(ji),電(dian)(dian)(dian)焊機(ji)，交(jiao)換機(ji)及中(zhong)頻電(dian)(dian)(dian)爐(lu)設備，變電(dian)(dian)(dian)設備，硅(gui)整流設備，網絡通訊(xun)設備，機(ji)電(dian)(dian)(dian)設備，工礦企(qi)業(ye)生(sheng)產廢料(liao)庫存物(wu)資。出售(shou)鍍(du)銀銅，鋁箔紙(zhi)(zhi)、絕緣(yuan)紙(zhi)(zhi)、礦物(wu)油(you)、錫、紅銅等。本公司信守承諾，價格合理(li)現金交(jiao)易,安(an)全快捷,并嚴格為客(ke)戶(hu)保密.歡迎(ying)有廢舊物(wu)資的單位(wei)來電(dian)(dian)(dian)洽談(tan)，中(zhong)介有酬。

交(jiao)流(liu)接(jie)觸(chu)器主(zhu)要有(you)四部分(fen)組(zu)成(cheng):(1) 電磁系統,包括吸引線(xian)圈、動(dong)(dong)鐵(tie)芯和(he)靜鐵(tie)芯;(2)觸(chu)頭系統,包括三組(zu)主(zhu)觸(chu)頭和(he)一(yi)(yi)至(zhi)兩組(zu)常(chang)開(kai)、常(chang)閉(bi)輔助觸(chu)頭,它和(he)動(dong)(dong)鐵(tie)芯是連在一(yi)(yi)起互(hu)相聯動(dong)(dong)的;(3)滅(mie)弧裝置,一(yi)(yi)般容量較大的交(jiao)流(liu)接(jie)觸(chu)器都設有(you)滅(mie)弧裝置,以便(bian)迅速切(qie)斷(duan)電弧,免于燒壞(huai)主(zhu)觸(chu)頭;(4)絕緣(yuan)外(wai)殼及附件,各種彈(dan)簧、傳動(dong)(dong)機構、短路環、接(jie)線(xian)柱等。

工作原理

當線(xian)(xian)圈(quan)通電時,靜(jing)鐵芯產生電磁吸(xi)力(li),將動(dong)(dong)鐵芯吸(xi)合(he),由于觸(chu)(chu)(chu)頭系(xi)統是與動(dong)(dong)鐵芯聯(lian)(lian)動(dong)(dong)的(de),因此動(dong)(dong)鐵芯帶(dai)動(dong)(dong)三條(tiao)動(dong)(dong)觸(chu)(chu)(chu)片同時運行,觸(chu)(chu)(chu)點閉(bi)合(he),從而接通電源(yuan)(yuan)。當線(xian)(xian)圈(quan)斷(duan)電時,吸(xi)力(li)消失(shi), 動(dong)(dong)鐵芯聯(lian)(lian)動(dong)(dong)部分(fen)依(yi)靠彈簧的(de)反作用力(li)而分(fen)離,使主(zhu)觸(chu)(chu)(chu)頭斷(duan)開,切斷(duan)電源(yuan)(yuan)。

? ?長城電(dian)(dian)(dian)器回(hui)收(shou)公司上門回(hui)收(shou)各種型號高(gao)低壓(ya)電(dian)(dian)(dian)容器，自(zi)愈式電(dian)(dian)(dian)容器，配電(dian)(dian)(dian)柜，蓄(xu)電(dian)(dian)(dian)池，鎘(ge)鎳電(dian)(dian)(dian)瓶，電(dian)(dian)(dian)抗器，ME斷路器，智能閘，互感器，放點(dian)線(xian)圈，接(jie)觸(chu)器，空氣開關，電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)等庫存物資。以(yi)誠為本，信譽至上。回(hui)收(shou)，沒(mei)極(ji)限(xian)。歡迎(ying)來電(dian)(dian)(dian)洽談(tan)。

用(yong)(yong)于(yu)(yu)低壓(ya)電(dian)(dian)(dian)路中(zhong)，是(shi)一種(zhong)使(shi)(shi)用(yong)(yong)安全、控(kong)制方(fang)便、量大(da)而(er)面廣的(de)(de)工業(ye)必需(xu)品。我國現在普遍使(shi)(shi)用(yong)(yong)的(de)(de)額定電(dian)(dian)(dian)流(liu)在63A及(ji)以上(shang)的(de)(de)大(da)、中(zhong)容(rong)量交(jiao)流(liu)接觸(chu)器應(ying)以上(shang)億臺計，其操作電(dian)(dian)(dian)磁(ci)系統(tong)在吸持時消(xiao)耗(hao)的(de)(de)有(you)功(gong)(gong)功(gong)(gong)率(lv)(lv)在10W～100W之(zhi)(zhi)間;消(xiao)耗(hao)的(de)(de)無功(gong)(gong)功(gong)(gong)率(lv)(lv)則(ze)在數十(shi)乏爾至數百乏爾之(zhi)(zhi)間。所耗(hao)有(you)功(gong)(gong)功(gong)(gong)率(lv)(lv)的(de)(de)分配大(da)致為：鐵芯65%~75%、短(duan)(duan)路環25%~30%、線圈3%~5%。對(dui)于(yu)(yu)我國這樣一個正處于(yu)(yu)工業(ye)化、城市化進程加(jia)快的(de)(de)交(jiao)流(liu)接觸(chu)器使(shi)(shi)用(yong)(yong)大(da)國，且(qie)能(neng)源(yuan)需(xu)求日(ri)趨緊張(zhang)，節(jie)(jie)約(yue)電(dian)(dian)(dian)力資源(yuan)已(yi)成為當(dang)務之(zhi)(zhi)急。　　如對(dui)上(shang)述(shu)交(jiao)流(liu)接觸(chu)器的(de)(de)操作電(dian)(dian)(dian)磁(ci)系統(tong)采用(yong)(yong)相(xiang)應(ying)的(de)(de)節(jie)(jie)電(dian)(dian)(dian)技(ji)術，將其操作電(dian)(dian)(dian)磁(ci)系統(tong)由(you)原設(she)計的(de)(de)交(jiao)流(liu)吸持改(gai)為直流(liu)吸持，可以節(jie)(jie)省鐵芯和短(duan)(duan)路環中(zhong)絕大(da)部分的(de)(de)損耗(hao)功(gong)(gong)率(lv)(lv)，從而(er)取得(de)較高的(de)(de)節(jie)(jie)電(dian)(dian)(dian)效(xiao)率(lv)(lv)(一般有(you)功(gong)(gong)節(jie)(jie)電(dian)(dian)(dian)率(lv)(lv)>90%以上(shang))。不僅如此，通過改(gai)造還可降低或(huo)消(xiao)除(chu)噪音(yin)，降低線圈溫升并延長接觸(chu)器的(de)(de)使(shi)(shi)用(yong)(yong)壽命(ming)。

長城電(dian)(dian)(dian)器回(hui)(hui)收(shou)(shou)公司上(shang)(shang)門回(hui)(hui)收(shou)(shou)各種型號高低壓電(dian)(dian)(dian)容器，自愈式電(dian)(dian)(dian)容器，蓄(xu)電(dian)(dian)(dian)池，鎘鎳電(dian)(dian)(dian)瓶，電(dian)(dian)(dian)抗(kang)器，ME斷路器，智能閘(zha)，互感器，放點(dian)線圈(quan)，接觸器，空(kong)氣開(kai)關，電(dian)(dian)(dian)線電(dian)(dian)(dian)纜等庫存物資(zi)。以誠為本，信譽至上(shang)(shang)。回(hui)(hui)收(shou)(shou)，沒極限。歡(huan)迎(ying)來電(dian)(dian)(dian)洽談。