電磁式產品簡介
電磁式電流繼電器用途：
電(dian)(dian)(dian)(dian)(dian)磁式(shi)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)繼電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)，為(wei)電(dian)(dian)(dian)(dian)(dian)磁式(shi)瞬動過電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)繼電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)，它廣泛用于電(dian)(dian)(dian)(dian)(dian)力系統(tong)二次回(hui)路繼電(dian)(dian)(dian)(dian)(dian)保(bao)護(hu)裝置線路中，作(zuo)為(wei)過電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)啟動元件。交(jiao)流(liu)(liu)(liu)接(jie)(jie)觸器(qi)(qi)(qi)(qi)的(de)(de)電(dian)(dian)(dian)(dian)(dian)磁系統(tong)會產生電(dian)(dian)(dian)(dian)(dian)磁噪聲(sheng)污染。為(wei)了解決交(jiao)流(liu)(liu)(liu)接(jie)(jie)觸器(qi)(qi)(qi)(qi)交(jiao)流(liu)(liu)(liu)噪聲(sheng)大、耗電(dian)(dian)(dian)(dian)(dian)量(liang)大、溫升高、功率因數低(di)的(de)(de)問(wen)題，目前有一種交(jiao)流(liu)(liu)(liu)接(jie)(jie)觸器(qi)(qi)(qi)(qi)自身有雙繞組線圈(quan)加整(zheng)流(liu)(liu)(liu)組件，此種交(jiao)流(liu)(liu)(liu)接(jie)(jie)觸器(qi)(qi)(qi)(qi)運(yun)行時比無(wu)節能的(de)(de)單(dan)線圈(quan)情況節電(dian)(dian)(dian)(dian)(dian)70%左右(you)，運(yun)行時無(wu)噪音，接(jie)(jie)觸器(qi)(qi)(qi)(qi)線圈(quan)燒壞情況有所改善。
電磁式電流繼電器結構原理：
1、繼電器(qi)系電磁式，瞬時動(dong)作，磁系統有(you)兩個線(xian)圈，線(xian)圈出頭接在底座端子上，用戶可以(yi)根(gen)據需要串并聯，因(yin)而(er)可使繼電器(qi)整定變化一倍；
2、繼(ji)電(dian)器(qi)名牌的刻度(du)值及(ji)額定值對于電(dian)流(liu)繼(ji)電(dian)器(qi)是線圈串(chuan)聯(lian)的(以(yi)安培為單位)轉動刻度(du)盤上的指針、以(yi)改(gai)變(bian)游絲的反(fan)作用力矩，從而可以(yi)改(gai)變(bian)繼(ji)電(dian)器(qi)的動作值；
3、繼電器(qi)的(de)動作(zuo)：電流升至(zhi)整定值(zhi)或大于整定值(zhi)時(shi)(shi)，繼電器(qi)就動作(zuo)，動合觸(chu)(chu)(chu)點(dian)閉(bi)合，動斷(duan)觸(chu)(chu)(chu)點(dian)斷(duan)開。當電流降低到(dao)0.8倍整定值(zhi)時(shi)(shi)，繼電器(qi)就返回，動合觸(chu)(chu)(chu)點(dian)斷(duan)開，動斷(duan)觸(chu)(chu)(chu)點(dian)閉(bi)合；
電磁式電流繼電器原理特性：
能夠使(shi)(shi)過流(liu)繼(ji)電(dian)(dian)(dian)器開始動(dong)作的(de)最(zui)小電(dian)(dian)(dian)流(liu)，稱為(wei)電(dian)(dian)(dian)流(liu)繼(ji)電(dian)(dian)(dian)器的(de)動(dong)作電(dian)(dian)(dian)流(liu)。當繼(ji)電(dian)(dian)(dian)器動(dong)作后電(dian)(dian)(dian)流(liu)均勻減小，使(shi)(shi)繼(ji)電(dian)(dian)(dian)器可動(dong)觸點返回(hui)到原(yuan)始狀態的(de)最(zui)大電(dian)(dian)(dian)流(liu)即繼(ji)電(dian)(dian)(dian)器的(de)返回(hui)電(dian)(dian)(dian)流(liu)。返回(hui)電(dian)(dian)(dian)流(liu)與(yu)動(dong)作電(dian)(dian)(dian)流(liu)的(de)比(bi)值(zhi)就是繼(ji)電(dian)(dian)(dian)器的(de)返回(hui)系(xi)數(shu)。
電磁繼電器的工作原理和特性：
電(dian)(dian)(dian)磁式繼(ji)電(dian)(dian)(dian)器一般由鐵(tie)(tie)芯、線(xian)圈、銜鐵(tie)(tie)、觸(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)簧片等組成的(de)(de)(de)(de)(de)。只(zhi)要在線(xian)圈兩端(duan)加上一定(ding)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)壓，線(xian)圈中就會(hui)(hui)流(liu)過(guo)一定(ding)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)流(liu)，從(cong)而產生電(dian)(dian)(dian)磁效(xiao)應，銜鐵(tie)(tie)就會(hui)(hui)在電(dian)(dian)(dian)磁力(li)吸引的(de)(de)(de)(de)(de)作用下克服返回彈簧的(de)(de)(de)(de)(de)拉(la)力(li)吸向鐵(tie)(tie)芯，從(cong)而帶(dai)動銜鐵(tie)(tie)的(de)(de)(de)(de)(de)動觸(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)與靜(jing)(jing)觸(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)（常(chang)開觸(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)）吸合(he)(he)。當線(xian)圈斷(duan)電(dian)(dian)(dian)后(hou)，電(dian)(dian)(dian)磁的(de)(de)(de)(de)(de)吸力(li)也隨(sui)之消失(shi)，銜鐵(tie)(tie)就會(hui)(hui)在彈簧的(de)(de)(de)(de)(de)反作用力(li)返回原來(lai)的(de)(de)(de)(de)(de)位置，使動觸(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)與原來(lai)的(de)(de)(de)(de)(de)靜(jing)(jing)觸(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)（常(chang)閉觸(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)）吸合(he)(he)。這(zhe)樣(yang)(yang)吸合(he)(he)、釋放，從(cong)而達到了在電(dian)(dian)(dian)路(lu)中的(de)(de)(de)(de)(de)導通(tong)、切(qie)斷(duan)的(de)(de)(de)(de)(de)目(mu)的(de)(de)(de)(de)(de)。對(dui)于繼(ji)電(dian)(dian)(dian)器的(de)(de)(de)(de)(de)“常(chang)開、常(chang)閉”觸(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)，可以這(zhe)樣(yang)(yang)來(lai)區分：繼(ji)電(dian)(dian)(dian)器線(xian)圈未通(tong)電(dian)(dian)(dian)時處于斷(duan)開狀態(tai)的(de)(de)(de)(de)(de)靜(jing)(jing)觸(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)，稱為(wei)(wei)“常(chang)開觸(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)”；處于接(jie)通(tong)狀態(tai)的(de)(de)(de)(de)(de)靜(jing)(jing)觸(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)稱為(wei)(wei)“常(chang)閉觸(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)”。
電磁式電流繼電器使用維護：
1、繼(ji)電器(qi)(qi)使用前，需取去(qu)外(wai)殼(ke)，拔出機器(qi)(qi)，檢(jian)查有無在運輸中產生的(de)(de)(de)損壞(huai)，如(ru)動(dong)片碰(peng)到(dao)磁板(ban)，游絲各圈相碰(peng)，動(dong)牌軸(zhou)上(shang)的(de)(de)(de)摩(mo)擦(ca)等，為此(ci)，將(jiang)(jiang)繼(ji)電器(qi)(qi)的(de)(de)(de)指(zhi)針整(zheng)定(ding)在第一整(zheng)定(ding)點(dian)上(shang)，用手(shou)將(jiang)(jiang)可動(dong)系統往磁板(ban)方(fang)向轉動(dong)，然后放開，可動(dong)系統應當轉回到(dao)原來位置直(zhi)到(dao)止檔，然后進行必要的(de)(de)(de)調整(zheng)和整(zheng)定(ding)；
2、繼電(dian)器在(zai)重新調整時(shi)，必須保證(zheng)：
2.1、可動系統的(de)軸向(xiang)活動量在0.15-0.3mm之間；
2.2、動片(pian)與磁極間的(de)氣隙，應當保(bao)證繼電器(qi)在(zai)規(gui)定的(de)任何工作情(qing)況下，動片(pian)和(he)磁板(ban)不(bu)得相碰(peng)；
2.3、具有動(dong)合觸(chu)(chu)點(dian)(dian)和(he)動(dong)斷觸(chu)(chu)點(dian)(dian)的(de)繼電器(qi)，橋形(xing)觸(chu)(chu)點(dian)(dian)不得同(tong)時接(jie)觸(chu)(chu)一動(dong)合靜觸(chu)(chu)點(dian)(dian)和(he)一動(dong)斷靜觸(chu)(chu)點(dian)(dian)；
2.4、當指針由(you)第一刻(ke)度值(zhi)旋向最終刻(ke)度值(zhi)時，游絲(si)各圈(quan)不相碰(peng)；
2.5、繼電器動(dong)作(zuo)時(shi)，橋形觸點應當在靜觸點的中心線上(shang)滑動(dong)(公差(cha)±lmm)，動(dong)、靜觸點總氣隙不小于2mm；
2.6、靜觸點(dian)和限制片之間的距離應不大于(yu)0.3mm；
2.7、在調整(zheng)繼電器的(de)動作(zuo)值時(shi)，最小(xiao)整(zheng)定(ding)值的(de)調整(zheng)主(zhu)要是(shi)改變游絲反作(zuo)用力(li)的(de)大小(xiao)，最大整(zheng)定(ding)值的(de)調整(zheng)，主(zhu)要是(shi)改變動片和磁板間的(de)氣隙等；
2.8、不宜潤滑繼電器軸和軸承；
2.9、不(bu)允許(xu)用(yong)(yong)砂紙或(huo)其它粗(cu)造(zao)材料(liao)清(qing)潔觸點(dian)(dian)，宜(yi)用(yong)(yong)鋒(feng)利的(de)刀刃或(huo)清(qing)潔的(de)細磨石清(qing)潔觸點(dian)(dian)，然后用(yong)(yong)清(qing)潔的(de)、柔軟的(de)布片擦(ca)干凈，避免(mian)用(yong)(yong)手指接(jie)觸觸點(dian)(dian)。
