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高低压成套设备运行中突然跳闸怎么办

发布日期:2023-01-17 14:59:11 作者:admin 点击:317

  高低压成套设(she)备(bei)在这样电力系(xi)统中(zhong)(zhong)起到(dao)发电、输(shu)电、配(pei)电、电能(neng)转换(huan)和消(xiao)耗中(zhong)(zhong)起通断、控制或(huo)保护等作用。该(gai)设(she)备(bei)作为一种电力设(she)备(bei),若运(yun)行过(guo)程中(zhong)(zhong)出现(xian)跳闸(zha)的问题(ti),整个电路也(ye)会(hui)随之短(duan)路。那(nei)么,该(gai)设(she)备(bei)运(yun)行过(guo)程中(zhong)(zhong)出现(xian)跳闸(zha)时我们应该(gai)如何处理呢?详情(qing)请看下文(wen):

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  1.判断跳闸(zha)原因(yin):

  可以(yi)根据继(ji)电器(qi)(qi)掉牌、告警信息等情况进行判断(duan)。在(zai)高低压(ya)成套设备中瓦(wa)斯(si)、温(wen)度(du)保(bao)(bao)护(hu)动作(zuo)后都有相应(ying)的(de)信号继(ji)电器(qi)(qi)掉牌指示。过(guo)流(liu)继(ji)电器(qi)(qi)(GL型)动作(zuo)时不能区分(fen)过(guo)流(liu)和(he)速断(duan)。在(zai)定时限保(bao)(bao)护(hu)电路(lu)中过(guo)流(liu)和(he)速断(duan)分(fen)别(bie)由两块(JL型)电流(liu)继(ji)电器(qi)(qi)保(bao)(bao)护(hu)。继(ji)电器(qi)(qi)动作(zuo)时红色的(de)发光(guang)二极管(guan)亮,可以(yi)明确判断(duan)动作(zuo)原因。

  2.处理方法:

  (1)过流继电(dian)器动作使开关跳闸,是(shi)因为线路(lu)过负荷。在送(song)电(dian)前应当与用户协商(shang)减(jian)少负荷防(fang)止(zhi)送(song)电(dian)后再次跳闸。

  (2)速断跳闸时,应当(dang)检查(cha)母线、变压(ya)器(qi)、线路。找到短路故障点,将(jiang)故障排除后方(fang)可(ke)(ke)送(song)电。过流和速断保(bao)(bao)护动(dong)作使开关跳闸后继(ji)电器(qi)可(ke)(ke)以复(fu)位(wei),利用这(zhei)一特(te)点可(ke)(ke)以和温度、瓦斯(si)保(bao)(bao)护区分(fen)。

  (3)变(bian)压器(qi)(qi)(qi)发生(sheng)内部故障(zhang)或(huo)过(guo)负荷(he)时瓦(wa)斯(si)(si)和温(wen)度(du)(du)保护动(dong)(dong)(dong)(dong)作,如(ru)果(guo)是(shi)变(bian)压器(qi)(qi)(qi)内部故障(zhang)使重瓦(wa)斯(si)(si)动(dong)(dong)(dong)(dong)作,必须检修变(bian)压器(qi)(qi)(qi)。如(ru)果(guo)是(shi)新移动(dong)(dong)(dong)(dong)、加(jia)油的(de)(de)变(bian)压器(qi)(qi)(qi)发生(sheng)轻(qing)瓦(wa)斯(si)(si)动(dong)(dong)(dong)(dong)作,可(ke)以(yi)(yi)将内部气体放出后继续投入(ru)运(yun)行(xing),温(wen)度(du)(du)保护动(dong)(dong)(dong)(dong)作是(shi)因为变(bian)压器(qi)(qi)(qi)温(wen)度(du)(du)超过(guo)整(zheng)(zheng)(zheng)定(ding)(ding)值。如(ru)果(guo)定(ding)(ding)值整(zheng)(zheng)(zheng)定(ding)(ding)正确,必须设法降低变(bian)压器(qi)(qi)(qi)的(de)(de)温(wen)度(du)(du)。可(ke)以(yi)(yi)通(tong)风降低环(huan)境温(wen)度(du)(du),也(ye)可(ke)以(yi)(yi)减(jian)少负荷(he)减(jian)低变(bian)压器(qi)(qi)(qi)温(wen)升(sheng)。如(ru)果(guo)整(zheng)(zheng)(zheng)定(ding)(ding)值偏小,可(ke)以(yi)(yi)将整(zheng)(zheng)(zheng)定(ding)(ding)值调大。通(tong)过(guo)以(yi)(yi)上几个方(fang)法使温(wen)度(du)(du)接(jie)点打开(kai)(kai),开(kai)(kai)关才能送(song)电。

  导致高低(di)压成套设备跳闸的原因不(bu)同,对应(ying)的解决方(fang)法也是不(bu)一样的,因此(ci),我(wo)们发现该设备跳闸后,应(ying)先(xian)仔细判(pan)断是哪里出现故障(zhang)了,然后再采取对应(ying)的措施将问(wen)题解决。