日韩视频中文字幕

塑殼(ke)斷(duan)路(lu)器(qi)是用來分配(pei)電(dian)(dian)能和保護(hu)線(xian)路(lu)及電(dian)(dian)源(yuan)設(she)備(bei)受過載、短路(lu)、 欠電(dian)(dian)壓等故(gu)障的(de)(de)損壞，而(er)的(de)(de)基本、的(de)(de)重(zhong)要的(de)(de)功能是正(zheng)確動(dong)(dong)作(zuo)并迅速切除電(dian)(dian)網故(gu)障，塑殼(ke)斷(duan)路(lu)器(qi)的(de)(de)操動(dong)(dong)失靈(ling)通常表現為以下兩種(zhong)形式：拖動(dong)(dong)和誤動(dong)(dong)。若(ruo)斷(duan)路(lu)器(qi)發生拖動(dong)(dong)或誤動(dong)(dong)，將對電(dian)(dian)網構成(cheng)嚴重(zhong)威脅，擴大(da)事故(gu)影響(xiang)范圍，可能還會造(zao)成(cheng)全廠停(ting)電(dian)(dian)。

操(cao)動失靈的原因(yin)：

1.操動(dong)機構缺陷。

操動機(ji)(ji)構(gou)(gou)(gou)包(bao)括電磁(ci)機(ji)(ji)構(gou)(gou)(gou)、彈簧(huang)機(ji)(ji)構(gou)(gou)(gou)和液壓機(ji)(ji)構(gou)(gou)(gou)。對電磁(ci)與(yu)彈簧(huang)機(ji)(ji)構(gou)(gou)(gou)，其機(ji)(ji)構(gou)(gou)(gou)機(ji)(ji)械(xie)故障的(de)主要原(yuan)因(yin)是(shi)(shi)卡澀不靈活(huo)。另一個原(yuan)因(yin)是(shi)(shi)鎖扣調整不當。對液壓機(ji)(ji)構(gou)(gou)(gou)，其機(ji)(ji)械(xie)故障主要是(shi)(shi)密(mi)封不良造成的(de)，因(yin)此保證高油壓部位密(mi)封可靠是(shi)(shi)特(te)別重要的(de)。

2．塑殼斷路器本體(ti)的(de)機械缺陷(xian)

造成斷(duan)路(lu)器本體操動失靈的缺陷，其中包括瓷瓶損(sun)(sun)壞、連(lian)接部位松動,零部件損(sun)(sun)壞和異物(wu)卡澀等。

3．操作（控(kong)制）電源(yuan)缺陷(xian)

在操作電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)缺(que)陷中(zhong)，操作電(dian)(dian)(dian)(dian)(dian)壓(ya)不足(zu)是(shi)的常(chang)見的缺(que)陷。其原因多半是(shi)由于(yu)電(dian)(dian)(dian)(dian)(dian)站采用交流(liu)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)經硅整(zheng)流(liu)后作操作電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)，在系統發生故障(zhang)時，電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)壓(ya)大(da)幅度(du)降(jiang)低(di)，或雖有蓄電(dian)(dian)(dian)(dian)(dian)池組，但(dan)操作電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)至斷(duan)路器處(chu)連線壓(ya)降(jiang)太大(da)，使實際操作電(dian)(dian)(dian)(dian)(dian)壓(ya)低(di)于(yu)規(gui)定的下限(xian)。例(li)如某(mou)變電(dian)(dian)(dian)(dian)(dian)所因一條配電(dian)(dian)(dian)(dian)(dian)線路發生故障(zhang)，斷(duan)路器在重合時爆炸(zha)。

相應的預防(fang)措施：

1.定期維護電(dian)磁與彈簧機構，防止出現卡澀、零部(bu)件(jian)損壞。

2.擰緊鎖扣處(chu)的(de)螺(luo)釘(ding)，防止螺(luo)釘(ding)松(song)動(dong)、變位等(deng)故(gu)障。

3.保(bao)證高(gao)油壓部位的(de)密封(feng)性

4.檢查(cha)輔助開關、微(wei)動開關是否完(wan)好，防止輔助開關不切換(huan)或接觸不良(liang)而造成(cheng)操作線圈燒壞和拒動。

5.及時檢修、更換鏈接部位零(ling)件

6.新(xin)建變(bian)電(dian)站建議采用蓄電(dian)池和儲能式作(zuo)(zuo)為操作(zuo)(zuo)電(dian)源。