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配电柜电路接线图识别方法和步骤

文章出处(chu):人气:62发(fa)表(biao)时间:2021-01-15 11:56:37

在(zai)实际配电柜线(xian)路安装检修过程中,首先对电气原理(li)(li)图(tu)弄得(de)很清楚(chu),并(bing)结合电气原理(li)(li)图(tu)看电路接(jie)(jie)线(xian)图(tu)识别读懂电路接(jie)(jie)线(xian)图(tu)最好的(de)方(fang)法。下面J9九游会AG 就介绍(shao)看电路接(jie)(jie)线(xian)图(tu)的(de)步骤和方(fang)法。

第一(yi)步分析清楚电(dian)气原(yuan)理图(tu)中主电(dian)路和(he)辅助(zhu)电(dian)路所含有的元器件

弄清楚每个元器件(jian)动作(zuo)原(yuan)理。要特别异清楚辅助电(dian)路中控(kong)制元件(jian)之间的关系,弄清楚辅助电(dian)路中有哪些控(kong)制元件(jian)与主(zhu)路有关系。

第二步弄清楚(chu)电(dian)气原理图和电(dian)路接线图中(zhong)元器(qi)件的(de)对应(ying)关系

在(zai)(zai)电(dian)(dian)气原(yuan)(yuan)理(li)图(tu)(tu)中元器(qi)(qi)件(jian)表(biao)示的(de)图(tu)(tu)形符号(hao)与电(dian)(dian)路(lu)接(jie)线图(tu)(tu)中元器(qi)(qi)件(jian)表(biao)示的(de)图(tu)(tu)形符号(hao)都按照(zhao)国家标准规定的(de)图(tu)(tu)形符号(hao)绘制,但是电(dian)(dian)气原(yuan)(yuan)理(li)图(tu)(tu)是根据电(dian)(dian)路(lu)工作原(yuan)(yuan)理(li)绘制,而电(dian)(dian)路(lu)接(jie)线图(tu)(tu)是按电(dian)(dian)路(lu)实际接(jie)线绘,这就造成对同一个(ge)元器(qi)(qi)件(jian)在(zai)(zai)两种图(tu)(tu)中绘制方法(fa)上(shang)可能有区(qu)别。

例如接触(chu)器、继(ji)电(dian)器、热继(ji)电(dian)器,时间继(ji)电(dian)器等(deng)控(kong)制元件,在电(dian)气原理图中(zhong)(zhong)是将(jiang)(jiang)它们的线圈和触(chu)点(dian)画(hua)在不(bu)同(tong)(tong)位置(zhi)(不(bu)同(tong)(tong)支路中(zhong)(zhong)),在电(dian)路接线图中(zhong)(zhong)是将(jiang)(jiang)同(tong)(tong)一个继(ji)电(dian)器的线图和触(chu)点(dian)画(hua)在一起。可参考交流接触(chu)器KM的画(hua)法。

电气线路图识别.jpg

第(di)三步弄请楚电路接线图中接线导线的根数和所用(yong)导线的具体规格

通过对电(dian)路接(jie)线(xian)(xian)(xian)图(tu)细致观察,可以得出所(suo)需(xu)导(dao)线(xian)(xian)(xian)的(de)(de)准(zhun)确根数和所(suo)用导(dao)线(xian)(xian)(xian)的(de)(de)具(ju)体规(gui)格(ge)。在(zai)电(dian)路接(jie)线(xian)(xian)(xian)图(tu)中(zhong)每(mei)两个接(jie)线(xian)(xian)(xian)柱(zhu)之(zhi)间需(xu)要一根导(dao)线(xian)(xian)(xian)。如在(zai)图(tu)中(zhong)3-1-1中(zhong)配电(dian)盘(pan)内部共(gong)有14根线(xian)(xian)(xian),其中(zhong)主电(dian)路导(dao)线(xian)(xian)(xian)9根,轴助(zhu)电(dian)路5根导(dao)线(xian)(xian)(xian),在(zai)电(dian)路接(jie)线(xian)(xian)(xian)图(tu)中(zhong)应该标明导(dao)线(xian)(xian)(xian)的(de)(de)规(gui)格(ge)。如在(zai)图(tu)3-11中(zhong)连接(jie)电(dian)源(yuan)与刀开关(guan)的(de)(de)导(dao)线(xian)(xian)(xian)为(wei)6m2塑料(liao)软线(xian)(xian)(xian)(BVR6×3表示(shi)3根6imm的(de)(de)塑料(liao)绝(jue)缘的(de)(de)软线(xian)(xian)(xian))。

在很(hen)多(duo)电(dian)路接线(xian)(xian)(xian)(xian)图中(zhong)并不标明(ming)(ming)导线(xian)(xian)(xian)(xian)的(de)具体(ti)型号(hao)(hao)规格(ge),而是将电(dian)路中(zhong)所(suo)有(you)(you)元(yuan)器件(jian)(jian)和导线(xian)(xian)(xian)(xian)型格(ge)列入元(yuan)件(jian)(jian)明(ming)(ming)细表(biao)中(zhong)如果电(dian)路接线(xian)(xian)(xian)(xian)图中(zhong)没(mei)有(you)(you)标明(ming)(ming)导线(xian)(xian)(xian)(xian)的(de)型号(hao)(hao)规格(ge),而明(ming)(ming)细表(biao)中(zhong)也没(mei)有(you)(you)注明(ming)(ming)导线(xian)(xian)(xian)(xian)的(de)型号(hao)(hao)规格(ge),这就需(xu)要接线(xian)(xian)(xian)(xian)人员(yuan)选择导线(xian)(xian)(xian)(xian)(有(you)(you)关导线(xian)(xian)(xian)(xian)选择另(ling)外说明(ming)(ming))。

第四步根据电路(lu)(lu)接线(xian)图中的(de)线(xian)号研究主(zhu)电路(lu)(lu)的(de)线(xian)路(lu)(lu)走(zou)向

分析主电(dian)路的线(xian)(xian)(xian)路走(zou)向是(shi)从电(dian)源(yuan)引入(ru)线(xian)(xian)(xian)开始(shi),依次找出接(jie)主电(dian)路用电(dian)器所经(jing)过的元(yuan)件(jian)器电(dian)源(yuan)引入(ru)线(xian)(xian)(xian)规(gui)定用的文字符号L1、L2、L3或(huo)U、V、W、N表(biao)示(shi)三相交流电(dian)源(yuan)的三根相线(xian)(xian)(xian)(火(huo)线(xian)(xian)(xian))和零线(xian)(xian)(xian)(中(zhong)性(xing)线(xian)(xian)(xian))。如图3-1-1中(zhong)电(dian)源(yuan)到电(dian)动机(ji)M之间连(lian)接(jie)线(xian)(xian)(xian)要(yao)经(jing)过配(pei)电(dian)盘(pan)端(duan)子(zi)引入(ru)→QK刀开关(guan)一(yi)一(yi)交流接(jie)触(chu)(chu)器KM的主触(chu)(chu)点(dian)(三对主触(chu)(chu)点(dian))一(yi)→配(pei)电(dian)盘(pan)端(duan)子(zi)(W2、V2:、V3)一(yi)→电(dian)动机(ji)接(jie)线(xian)(xian)(xian)盒的接(jie)线(xian)(xian)(xian)柱。

配电柜电气图识别

第四步根据线(xian)号(hao)研究辅(fu)助电(dian)(dian)(dian)(dian)路的(de)(de)线(xian)路走向。在实际电(dian)(dian)(dian)(dian)路接线(xian)过程中主(zhu)电(dian)(dian)(dian)(dian)路和(he)辅(fu)助电(dian)(dian)(dian)(dian)路是(shi)分先后顺序接线(xian)的(de)(de)。这样做(zuo)的(de)(de)原因(yin),是(shi)为了避(bi)兔(tu)主(zhu)、辅(fu)电(dian)(dian)(dian)(dian)路线(xian)路混杂,另(ling)外(wai)主(zhu)电(dian)(dian)(dian)(dian)路和(he)辅(fu)助电(dian)(dian)(dian)(dian)路所用导线(xian)型(xing)号(hao)规格也不相同

分析(xi)辅助电路(lu)的(de)线(xian)路(lu)走向是(shi)从辅助电路(lu)电源(yuan)引入端开始,依次研究每条支路(lu)的(de)线(xian)路(lu)走向。如图中轴助电路(lu)电源(yuan)是(shi)从交流接(jie)触(chu)点(dian)两对(dui)主触(chu)点(dian)的(de)一端接(jie)线(xian)柱上引出(chu)的(de)(标有V1和U1线(xian)的(de)接(jie)线(xian)柱)。轴助电路(lu)线(xian)路(lu)走向是(shi)从U1一熔(rong)断(duan)器(qi)2FU→接(jie)钮开关(guan)SB一→KM线(xian)圈→3FU熔(rong)断(duan)器(qi)→V1。


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