電(dian)流繼(ji)電(dian)器的分類及用途

從(cong)結構(gou)類型，電流(liu)繼(ji)電器分(fen)為(wei)：電磁式電流(liu)繼(ji)電器，靜態(tai)電流(liu)繼(ji)電器 電流(liu)繼(ji)電器

從(cong)(cong)(cong)(cong)安裝方式(shi)，電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)繼(ji)(ji)(ji)電(dian)(dian)(dian)(dian)器(qi)(qi)分為：導軌電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)繼(ji)(ji)(ji)電(dian)(dian)(dian)(dian)器(qi)(qi)，固定(ding)式(shi)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)繼(ji)(ji)(ji)電(dian)(dian)(dian)(dian)器(qi)(qi) 從(cong)(cong)(cong)(cong)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)動(dong)作，電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)繼(ji)(ji)(ji)電(dian)(dian)(dian)(dian)器(qi)(qi)分為 ：過電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)繼(ji)(ji)(ji)電(dian)(dian)(dian)(dian)器(qi)(qi)，欠(qian)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)繼(ji)(ji)(ji)電(dian)(dian)(dian)(dian)器(qi)(qi) 從(cong)(cong)(cong)(cong)時性曲線(xian)，電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)繼(ji)(ji)(ji)電(dian)(dian)(dian)(dian)器(qi)(qi)分為：定(ding)時限電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)繼(ji)(ji)(ji)電(dian)(dian)(dian)(dian)器(qi)(qi)，反時限電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)繼(ji)(ji)(ji)電(dian)(dian)(dian)(dian)器(qi)(qi) 從(cong)(cong)(cong)(cong)使用方面(mian)，電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)繼(ji)(ji)(ji)電(dian)(dian)(dian)(dian)器(qi)(qi)分為：小型控制(zhi)類繼(ji)(ji)(ji)電(dian)(dian)(dian)(dian)器(qi)(qi)，二次回路保(bao)護繼(ji)(ji)(ji)電(dian)(dian)(dian)(dian)器(qi)(qi)電(dian)(dian)(dian)(dian)磁式(shi)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)繼(ji)(ji)(ji)電(dian)(dian)(dian)(dian)器(qi)(qi)

用途

電(dian)(dian)(dian)磁式電(dian)(dian)(dian)流繼(ji)電(dian)(dian)(dian)器，為(wei)電(dian)(dian)(dian)磁式瞬動(dong)過(guo)電(dian)(dian)(dian)流繼(ji)電(dian)(dian)(dian)器，它廣泛(fan)用于電(dian)(dian)(dian)力系統二次(ci)回路繼(ji)電(dian)(dian)(dian)保(bao)護(hu)裝置(zhi)線(xian)路中，作為(wei)過(guo)電(dian)(dian)(dian)流啟動(dong)元件。

結構原理

1. 繼電器系電磁式，瞬時動作，磁系統有兩個線圈，線圈出(chu)頭接在底座端子上，用戶可以根據需要串(chuan)并聯，因而可使繼電器整定變化(hua)一倍。

2. 繼(ji)(ji)電器(qi)(qi)名牌的(de)(de)刻度值及(ji)額(e)定值對于電流繼(ji)(ji)電器(qi)(qi)是線圈串聯的(de)(de)(以安培為單(dan)位)轉動刻度盤上的(de)(de)指針、以改變(bian)游絲的(de)(de)反(fan)作用力矩，從(cong)而可以改變(bian)繼(ji)(ji)電器(qi)(qi)的(de)(de)動作值。

3. 繼電(dian)(dian)器的(de)動(dong)作：電(dian)(dian)流(liu)升至整(zheng)(zheng)定值或大于整(zheng)(zheng)定值時，繼電(dian)(dian)器就(jiu)動(dong)作，動(dong)合(he)觸(chu)點閉合(he)，動(dong)斷觸(chu)點斷開(kai)。當電(dian)(dian)流(liu)降低到(dao)0.8倍整(zheng)(zheng)定值時，繼電(dian)(dian)器就(jiu)返回(hui)，動(dong)合(he)觸(chu)點斷開(kai)，動(dong)斷觸(chu)點閉合(he)。

工作原理和特性

電(dian)(dian)磁(ci)(ci)(ci)繼電(dian)(dian)器(qi)的(de)(de)(de)(de)(de)(de)工作(zuo)原理和(he)特性：電(dian)(dian)磁(ci)(ci)(ci)式繼電(dian)(dian)器(qi)一(yi)般(ban)由(you)鐵(tie)芯、線(xian)圈(quan)、銜鐵(tie)、觸(chu)(chu)點(dian)(dian)(dian)簧(huang)片等組(zu)成的(de)(de)(de)(de)(de)(de)。只要在(zai)線(xian)圈(quan)兩端(duan)加上一(yi)定的(de)(de)(de)(de)(de)(de)電(dian)(dian)壓(ya)，線(xian)圈(quan)中就會(hui)流過一(yi)定的(de)(de)(de)(de)(de)(de)電(dian)(dian)流，從(cong)而產(chan)生電(dian)(dian)磁(ci)(ci)(ci)效應，銜鐵(tie)就會(hui)在(zai)電(dian)(dian)磁(ci)(ci)(ci)力(li)吸(xi)引(yin)的(de)(de)(de)(de)(de)(de)作(zuo)用下(xia)克服返(fan)(fan)回(hui)彈簧(huang)的(de)(de)(de)(de)(de)(de)拉(la)力(li)吸(xi)向鐵(tie)芯，從(cong)而帶動銜鐵(tie)的(de)(de)(de)(de)(de)(de)動觸(chu)(chu)點(dian)(dian)(dian)與靜(jing)(jing)觸(chu)(chu)點(dian)(dian)(dian)(常(chang)(chang)開(kai)觸(chu)(chu)點(dian)(dian)(dian))吸(xi)合。當(dang)線(xian)圈(quan)斷電(dian)(dian)后，電(dian)(dian)磁(ci)(ci)(ci)的(de)(de)(de)(de)(de)(de)吸(xi)力(li)也隨之消失，銜鐵(tie)就會(hui)在(zai)彈簧(huang)的(de)(de)(de)(de)(de)(de)反作(zuo)用力(li)返(fan)(fan)回(hui)原來(lai)的(de)(de)(de)(de)(de)(de)位(wei)置，使動觸(chu)(chu)點(dian)(dian)(dian)與原來(lai)的(de)(de)(de)(de)(de)(de)靜(jing)(jing)觸(chu)(chu)點(dian)(dian)(dian)(常(chang)(chang)閉觸(chu)(chu)點(dian)(dian)(dian))吸(xi)合。這樣(yang)吸(xi)合、釋放，從(cong)而達(da)到了(le)在(zai)電(dian)(dian)路中的(de)(de)(de)(de)(de)(de)導(dao)通、切斷的(de)(de)(de)(de)(de)(de)目(mu)的(de)(de)(de)(de)(de)(de)。對于繼電(dian)(dian)器(qi)的(de)(de)(de)(de)(de)(de)“常(chang)(chang)開(kai)、常(chang)(chang)閉”觸(chu)(chu)點(dian)(dian)(dian)，可以這樣(yang)來(lai)區分：繼電(dian)(dian)器(qi)線(xian)圈(quan)未通電(dian)(dian)時處于斷開(kai)狀態的(de)(de)(de)(de)(de)(de)靜(jing)(jing)觸(chu)(chu)點(dian)(dian)(dian)，稱(cheng)為(wei)“常(chang)(chang)開(kai)觸(chu)(chu)點(dian)(dian)(dian)”;處于接(jie)通狀態的(de)(de)(de)(de)(de)(de)靜(jing)(jing)觸(chu)(chu)點(dian)(dian)(dian)稱(cheng)為(wei)“常(chang)(chang)閉觸(chu)(chu)點(dian)(dian)(dian)”。