贵州电气成套设备讲解成套电气设备安装接线基础知识

想做好本职工作：（1）每个员工做到应该知道什么？熟悉什么？能看懂什么？就成套电器产品而言，每个员工应该知道产品的结构形式、用途；应该熟悉产品的性能、内部的结构、主要的技术参数；应该看懂系统图（一次方案图）、平面布置图、原理图、二次接线安装图。（2）每位员工知道什么是三按生产：按图纸生产；按工艺生产；按技术规范生产。质量管理方面“五不”，①材料不合格不投料；②上道工序不合格不流入下道工序；③零件、元器件不合格不装配；④装配不合格不检验；⑤检验不合格不出厂。在日常工作中要有一个比较合理的、完整的装配接线计划。电力的生产、输送、分配和使用，需大量的各种类型的电器设备，以构成电力发、输、配的主系统。这些设备主要是指发电机、变压器、隔离开关、断路器、电压互感器、电流互感器、电力电容器、避雷器、电缆、母线等。它们在电力系统中通常称为一次设备，把这些设备连接在一起组成的电路称为一次接线，也称主接线，也就是一次方案回路。

为(wei)了(le)使电(dian)力生产、传输(shu)、分配和使用(yong)的(de)各环节安(an)全(quan)、稳(wen)靠(kao)、连续、稳(wen)定(ding)、经济(ji)、灵活的(de)运行，并监视其工作情况，在主系(xi)统外还需装置相(xiang)当(dang)数(shu)量的(de)其它(ta)设备，如测量仪表、自动(dong)装置继(ji)电(dian)保(bao)护远(yuan)动(dong)及控制信号器具等，这(zhei)些设备通(tong)常与电(dian)流、电(dian)压互感器的(de)二(er)(er)(er)次(ci)绕组(zu)直流回(hui)路(lu)(lu)或厂(chang)用(yong)所用(yong)的(de)低压回(hui)路(lu)(lu)连接(jie)(jie)起来(lai)，它(ta)们构成(cheng)的(de)回(hui)路(lu)(lu)称为(wei)二(er)(er)(er)次(ci)回(hui)路(lu)(lu)，接(jie)(jie)线(xian)(xian)(xian)称二(er)(er)(er)次(ci)接(jie)(jie)线(xian)(xian)(xian)。描述二(er)(er)(er)次(ci)回(hui)路(lu)(lu)的(de)图(tu)(tu)纸称为(wei)二(er)(er)(er)次(ci)接(jie)(jie)线(xian)(xian)(xian)或二(er)(er)(er)次(ci)回(hui)路(lu)(lu)（其中包括辅助回(hui)路(lu)(lu)）图(tu)(tu)。二(er)(er)(er)次(ci)接(jie)(jie)线(xian)(xian)(xian)的(de)图(tu)(tu)纸一般有三种形式，即原理(li)图(tu)(tu)、原理(li)展开图(tu)(tu)和安(an)装接(jie)(jie)线(xian)(xian)(xian)图(tu)(tu)（我们通(tong)常所用(yong)的(de)是二(er)(er)(er)次(ci)接(jie)(jie)线(xian)(xian)(xian)图(tu)(tu)）。

在(zai)二(er)次(ci)(ci)接线图(tu)中(zhong)所(suo)(suo)使用的(de)图(tu)形符号和(he)文字符号，它不但用于(yu)代表(biao)二(er)次(ci)(ci)接线图(tu)中(zhong)的(de)各电(dian)(dian)(dian)器(qi)(qi)(qi)设备与元件的(de)所(suo)(suo)在(zai)位(wei)置(zhi)，而且(qie)反映它所(suo)(suo)发挥的(de)作用。在(zai)二(er)次(ci)(ci)接线图(tu)中(zhong)，断(duan)路器(qi)(qi)(qi)、隔离(li)开(kai)(kai)(kai)关、接触(chu)(chu)器(qi)(qi)(qi)的(de)辅助触(chu)(chu)头及(ji)继电(dian)(dian)(dian)器(qi)(qi)(qi)的(de)触(chu)(chu)点，所(suo)(suo)表(biao)示的(de)位(wei)置(zhi)是这些设备在(zai)正常状态(tai)的(de)位(wei)置(zhi)。所(suo)(suo)谓(wei)正常状态(tai)就是指断(duan)路器(qi)(qi)(qi)、隔离(li)开(kai)(kai)(kai)关、接触(chu)(chu)器(qi)(qi)(qi)及(ji)继电(dian)(dian)(dian)器(qi)(qi)(qi)处于(yu)断(duan)路和(he)失电(dian)(dian)(dian)状态(tai)。所(suo)(suo)谓(wei)常开(kai)(kai)(kai)、常闭触(chu)(chu)点是指这些设备在(zai)正常状态(tai)即(ji)断(duan)路或失电(dian)(dian)(dian)状态(tai)下辅助触(chu)(chu)点是短开(kai)(kai)(kai)或闭合的(de)。

   二次(ci)(ci)接线(xian)(xian)(xian)的(de)原理(li)图(tu)(tu)(tu)是(shi)用来(lai)表(biao)示(shi)继(ji)电(dian)保护测量仪表(biao)、自动(dong)装置的(de)工(gong)作(zuo)原理(li)的(de)。通(tong)常(chang)是(shi)将二次(ci)(ci)接线(xian)(xian)(xian)和一次(ci)(ci)接线(xian)(xian)(xian)中与二次(ci)(ci)接线(xian)(xian)(xian)有关部(bu)分(fen)画在一起(qi)。在原理(li)图(tu)(tu)(tu)上，仪表(biao)、继(ji)电(dian)器和其他电(dian)器都是(shi)以整(zheng)体形式表(biao)示(shi)的(de)，其相互(hu)联系的(de)电(dian)流回路(lu)、电(dian)压回路(lu)、直流回路(lu)都是(shi)综合(he)在一起(qi)，而且还表(biao)示(shi)有关的(de)一次(ci)(ci)回路(lu)的(de)部(bu)分(fen)。这种(zhong)接线(xian)(xian)(xian)图(tu)(tu)(tu)的(de)特点是(shi)能够使(shi)看图(tu)(tu)(tu)者(zhe)对整(zheng)个装置的(de)构成和动(dong)作(zuo)过程有一个明确的(de)整(zheng)体概念(nian)，它(ta)是(shi)绘制展开图(tu)(tu)(tu)和安装接线(xian)(xian)(xian)图(tu)(tu)(tu)的(de)基础。

开(kai)图(tu)(tu)是根(gen)据原理图(tu)(tu)而绘制的(de)图(tu)(tu)纸(zhi)。展开(kai)图(tu)(tu)一(yi)般情况(kuang)：一(yi)方面表(biao)示保护及测量装置接(jie)的(de)电(dian)流(liu)、电(dian)压(ya)互感(gan)器在一(yi)次系统(tong)图(tu)(tu)中的(de)位置；另一(yi)方面表(biao)示保护控制回(hui)路(lu)(lu)的(de)展开(kai)图(tu)(tu)。展开(kai)图(tu)(tu)可分为交(jiao)流(liu)、直(zhi)流(liu)两大部分。交(jiao)流(liu)回(hui)路(lu)(lu)展开(kai)图(tu)(tu)一(yi)般指(zhi)的(de)是交(jiao)流(liu)电(dian)流(liu)回(hui)路(lu)(lu)和交(jiao)流(liu)电(dian)压(ya)回(hui)路(lu)(lu)的(de)接(jie)线图(tu)(tu)。直(zhi)流(liu)回(hui)路(lu)(lu)展开(kai)图(tu)(tu)指(zhi)的(de)是控制回(hui)路(lu)(lu)、保护回(hui)路(lu)(lu)、信号回(hui)路(lu)(lu)等接(jie)线图(tu)(tu)。

安(an)(an)装(zhuang)接线图(tu)(tu)一般包括屏(ping)(ping)（台，箱(xiang)）面(mian)布(bu)置(zhi)图(tu)(tu)、屏(ping)(ping)（台、箱(xiang)）背(bei)视布(bu)置(zhi)图(tu)(tu)、背(bei)面(mian)接线图(tu)(tu)和端子排(pai)列图(tu)(tu)，它是(shi)制(zhi)造安(an)(an)装(zhuang)的(de)(de)(de)主(zhu)要图(tu)(tu)纸，也(ye)(ye)是(shi)运(yun)(yun)行调试(shi)检(jian)修的(de)(de)(de)主(zhu)要参(can)考(kao)图(tu)(tu)纸。安(an)(an)装(zhuang)接线图(tu)(tu)一般由制(zhi)造厂根据展(zhan)开(kai)图(tu)(tu)、正面(mian)、背(bei)面(mian)所布(bu)置(zhi)的(de)(de)(de)元器件相应位(wei)置(zhi)而绘制(zhi)的(de)(de)(de)图(tu)(tu)纸，是(shi)供(gong)指导(dao)生产(chan)检(jian)验而用的(de)(de)(de)，同(tong)时随产(chan)品(pin)提(ti)供(gong)订货(huo)单(dan)位(wei)，是(shi)安(an)(an)装(zhuang)调试(shi)运(yun)(yun)行的(de)(de)(de)主(zhu)要参(can)考(kao)图(tu)(tu)。端子排(pai)列图(tu)(tu)是(shi)二次(ci)电(dian)缆在屏(ping)(ping)上接线图(tu)(tu)，主(zhu)要供(gong)施工单(dan)位(wei)使(shi)用，也(ye)(ye)是(shi)调试(shi)检(jian)修的(de)(de)(de)主(zhu)要参(can)考(kao)图(tu)(tu)。贵州电(dian)气(qi)成套设备

平面(mian)布置(zhi)图(tu)是(shi)表(biao)(biao)明(ming)(ming)各(ge)种(zhong)电器设(she)备(bei)与线(xian)路平面(mian)布置(zhi)的图(tu)纸，是(shi)进行电器安(an)装(zhuang)(zhuang)的重要依据(ju)，也(ye)就(jiu)是(shi)我们成套电器设(she)备(bei)厂需参考(kao)的图(tu)纸，它表(biao)(biao)明(ming)(ming)各(ge)种(zhong)电器设(she)备(bei)的平面(mian)位置(zhi)、安(an)装(zhuang)(zhuang)方(fang)式(shi)和其相互关系的图(tu)纸，以(yi)便(bian)厂家在生产过(guo)程中需考(kao)虑进出线(xian)方(fang)式(shi)和柜体生产的方(fang)案(an)。（即是(shi)否有后门装(zhuang)(zhuang)附(fu)柜）

在日常工作生产(chan)中应(ying)该使(shi)每位(wei)生产(chan)人员懂得电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)元件(jian)的(de)(de)(de)(de)(de)名称(cheng)、型号、符号、作用(yong)与结(jie)构，而且还要弄清楚原理，如电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)压(ya)(ya)(ya)(ya)互(hu)(hu)(hu)感(gan)(gan)器(qi)(qi)(qi)(qi)、电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)互(hu)(hu)(hu)感(gan)(gan)器(qi)(qi)(qi)(qi)。电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)压(ya)(ya)(ya)(ya)互(hu)(hu)(hu)感(gan)(gan)器(qi)(qi)(qi)(qi)将高压(ya)(ya)(ya)(ya)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)变(bian)为(wei)标准(zhun)(zhun)的(de)(de)(de)(de)(de)低压(ya)(ya)(ya)(ya)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)（100V）。电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)互(hu)(hu)(hu)感(gan)(gan)器(qi)(qi)(qi)(qi)，将高压(ya)(ya)(ya)(ya)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)或低压(ya)(ya)(ya)(ya)大电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)变(bian)为(wei)标准(zhun)(zhun)的(de)(de)(de)(de)(de)低压(ya)(ya)(ya)(ya)小电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)（5A、1A）。对计量(liang)仪(yi)表(biao)(biao)，对系统(tong)的(de)(de)(de)(de)(de)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)压(ya)(ya)(ya)(ya)、电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)、电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)能(neng)等(deng)(deng)进(jin)行(xing)(xing)测量(liang)及(ji)与继电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)配(pei)合，对系统(tong)和(he)设备的(de)(de)(de)(de)(de)过电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)压(ya)(ya)(ya)(ya)、过电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)、单相接(jie)(jie)(jie)(jie)地(di)等(deng)(deng)故障进(jin)行(xing)(xing)保(bao)护，使(shi)二次电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)与一次电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)隔(ge)离(li)，保(bao)护二次电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)安(an)全(quan)运行(xing)(xing)。同时经互(hu)(hu)(hu)感(gan)(gan)器(qi)(qi)(qi)(qi)变(bian)成了标准(zhun)(zhun)的(de)(de)(de)(de)(de)低电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)压(ya)(ya)(ya)(ya)、低电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)，从而使(shi)得电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)测量(liang)仪(yi)表(biao)(biao)和(he)继电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)压(ya)(ya)(ya)(ya)等(deng)(deng)级(ji)与电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)等(deng)(deng)级(ji)有了统(tong)一的(de)(de)(de)(de)(de)标准(zhun)(zhun)。电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)压(ya)(ya)(ya)(ya)互(hu)(hu)(hu)感(gan)(gan)器(qi)(qi)(qi)(qi)相当(dang)(dang)于一个电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)压(ya)(ya)(ya)(ya)源，基本(ben)处于开(kai)路(lu)运行(xing)(xing)，所接(jie)(jie)(jie)(jie)负载(zai)(zai)均(jun)(jun)为(wei)阻(zu)值(zhi)很大的(de)(de)(de)(de)(de)负载(zai)(zai)，如电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)压(ya)(ya)(ya)(ya)表(biao)(biao)、电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)压(ya)(ya)(ya)(ya)继电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)线圈(quan)等(deng)(deng)等(deng)(deng)。这些负载(zai)(zai)元件(jian)均(jun)(jun)为(wei)并联(lian)连接(jie)(jie)(jie)(jie)，所以不(bu)能(neng)短(duan)接(jie)(jie)(jie)(jie)，否则将烧坏互(hu)(hu)(hu)感(gan)(gan)器(qi)(qi)(qi)(qi)，因(yin)此电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)压(ya)(ya)(ya)(ya)互(hu)(hu)(hu)感(gan)(gan)器(qi)(qi)(qi)(qi)二次侧(ce)不(bu)允许短(duan)路(lu)并应(ying)装熔(rong)断器(qi)(qi)(qi)(qi)（除计量(liang)回路(lu)外）。电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)互(hu)(hu)(hu)感(gan)(gan)器(qi)(qi)(qi)(qi)相当(dang)(dang)于一个电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)源，所接(jie)(jie)(jie)(jie)负载(zai)(zai)阻(zu)值(zhi)小，如电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)表(biao)(biao)、电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)继电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)等(deng)(deng)，这些元件(jian)均(jun)(jun)为(wei)串联(lian)连接(jie)(jie)(jie)(jie)，所以电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)互(hu)(hu)(hu)感(gan)(gan)器(qi)(qi)(qi)(qi)二次侧(ce)不(bu)能(neng)开(kai)路(lu)，否则将会产(chan)生高电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)压(ya)(ya)(ya)(ya)，互(hu)(hu)(hu)感(gan)(gan)器(qi)(qi)(qi)(qi)二次侧(ce)不(bu)安(an)装熔(rong)断器(qi)(qi)(qi)(qi)、开(kai)关(guan)之类的(de)(de)(de)(de)(de)元件(jian)，当(dang)(dang)需要切(qie)换时，应(ying)采取短(duan)接(jie)(jie)(jie)(jie)，在安(an)装接(jie)(jie)(jie)(jie)线中应(ying)注意互(hu)(hu)(hu)感(gan)(gan)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)极性。

继(ji)(ji)(ji)(ji)(ji)(ji)电(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)：继(ji)(ji)(ji)(ji)(ji)(ji)电(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)目前在来讲种类繁(fan)多，有(you)(you)控(kong)制(zhi)(zhi)继(ji)(ji)(ji)(ji)(ji)(ji)电(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)与(yu)保(bao)护(hu)继(ji)(ji)(ji)(ji)(ji)(ji)电(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)，用(yong)(yong)于保(bao)护(hu)装(zhuang)置称保(bao)护(hu)继(ji)(ji)(ji)(ji)(ji)(ji)电(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)；用(yong)(yong)于控(kong)制(zhi)(zhi)称控(kong)制(zhi)(zhi)继(ji)(ji)(ji)(ji)(ji)(ji)电(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)。继(ji)(ji)(ji)(ji)(ji)(ji)电(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)根据功(gong)能(neng)的(de)(de)(de)(de)不同(tong)分为度量(liang)继(ji)(ji)(ji)(ji)(ji)(ji)电(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)和有(you)(you)或(huo)无(wu)继(ji)(ji)(ji)(ji)(ji)(ji)电(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)：1.度量(liang)继(ji)(ji)(ji)(ji)(ji)(ji)电(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)指能(neng)度量(liang)（或(huo)压(ya)力等）大(da)小，并与(yu)预(yu)定(ding)(ding)(ding)值(zhi)(zhi)相比(bi)后而(er)(er)(er)(er)动作(zuo)(zuo)的(de)(de)(de)(de)继(ji)(ji)(ji)(ji)(ji)(ji)电(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)。电(dian)(dian)(dian)(dian)压(ya)继(ji)(ji)(ji)(ji)(ji)(ji)电(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)：当(dang)电(dian)(dian)(dian)(dian)路中(zhong)(zhong)电(dian)(dian)(dian)(dian)压(ya)超过(guo)(guo)或(huo)低于整(zheng)定(ding)(ding)(ding)值(zhi)(zhi)而(er)(er)(er)(er)动作(zuo)(zuo)的(de)(de)(de)(de)继(ji)(ji)(ji)(ji)(ji)(ji)电(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)；功(gong)率(lv)方向继(ji)(ji)(ji)(ji)(ji)(ji)电(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)：当(dang)电(dian)(dian)(dian)(dian)流流向某一(yi)方向的(de)(de)(de)(de)功(gong)率(lv)超过(guo)(guo)整(zheng)定(ding)(ding)(ding)值(zhi)(zhi)而(er)(er)(er)(er)动作(zuo)(zuo)的(de)(de)(de)(de)继(ji)(ji)(ji)(ji)(ji)(ji)电(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)；阻(zu)抗(kang)继(ji)(ji)(ji)(ji)(ji)(ji)电(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)：反应故障点至保(bao)护(hu)装(zhuang)置安装(zhuang)地点距(ju)离阻(zu)抗(kang)，并根据距(ju)离远(yuan)近（阻(zu)抗(kang)大(da)小）而(er)(er)(er)(er)确定(ding)(ding)(ding)动作(zuo)(zuo)时(shi)(shi)间(jian)的(de)(de)(de)(de)继(ji)(ji)(ji)(ji)(ji)(ji)电(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)；差动继(ji)(ji)(ji)(ji)(ji)(ji)电(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)：电(dian)(dian)(dian)(dian)路中(zhong)(zhong)不同(tong)地点的(de)(de)(de)(de)电(dian)(dian)(dian)(dian)流差值(zhi)(zhi)超过(guo)(guo)整(zheng)定(ding)(ding)(ding)值(zhi)(zhi)而(er)(er)(er)(er)动作(zuo)(zuo)的(de)(de)(de)(de)继(ji)(ji)(ji)(ji)(ji)(ji)电(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)。2.有(you)(you)或(huo)无(wu)继(ji)(ji)(ji)(ji)(ji)(ji)电(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)：有(you)(you)或(huo)无(wu)继(ji)(ji)(ji)(ji)(ji)(ji)电(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)是(shi)接(jie)(jie)受度量(liang)继(ji)(ji)(ji)(ji)(ji)(ji)电(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)动作(zuo)(zuo)之后发出(chu)命令而(er)(er)(er)(er)动作(zuo)(zuo)，作(zuo)(zuo)用(yong)(yong)于开(kai)关跳闸延时(shi)(shi)、信号(hao)(hao)(hao)(hao)等功(gong)能(neng)的(de)(de)(de)(de)继(ji)(ji)(ji)(ji)(ji)(ji)电(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)，或(huo)者说它是(shi)一(yi)种接(jie)(jie)通电(dian)(dian)(dian)(dian)源(yuan)（有(you)(you)电(dian)(dian)(dian)(dian)）就动作(zuo)(zuo)的(de)(de)(de)(de)继(ji)(ji)(ji)(ji)(ji)(ji)电(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)，不具备度量(liang)电(dian)(dian)(dian)(dian)路参数功(gong)能(neng)。如时(shi)(shi)间(jian)继(ji)(ji)(ji)(ji)(ji)(ji)电(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)：除信号(hao)(hao)(hao)(hao)以外，其(qi)触点经过(guo)(guo)延时(shi)(shi)而(er)(er)(er)(er)闭合(he)或(huo)断开(kai)的(de)(de)(de)(de)继(ji)(ji)(ji)(ji)(ji)(ji)电(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)；中(zhong)(zhong)间(jian)继(ji)(ji)(ji)(ji)(ji)(ji)电(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)：用(yong)(yong)来增加(jia)信号(hao)(hao)(hao)(hao)数量(liang)或(huo)将信号(hao)(hao)(hao)(hao)放大(da)的(de)(de)(de)(de)继(ji)(ji)(ji)(ji)(ji)(ji)电(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)；信号(hao)(hao)(hao)(hao)继(ji)(ji)(ji)(ji)(ji)(ji)电(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)：用(yong)(yong)来发出(chu)信号(hao)(hao)(hao)(hao)或(huo)作(zuo)(zuo)用(yong)(yong)于信号(hao)(hao)(hao)(hao)系统显示的(de)(de)(de)(de)继(ji)(ji)(ji)(ji)(ji)(ji)电(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)。

在控(kong)制(zhi)辅助回路中(zhong)，保护回路除继电(dian)器(qi)外(wai)，少不了控(kong)制(zhi)开关(guan)，其作用主(zhu)要用来(lai)接通、切断主(zhu)开关(guan)，如控(kong)制(zhi)按钮(niu)、开关(guan)、开关(guan)LW5、LW12等，除以(yi)上控(kong)制(zhi)保护元件(jian)，还(hai)有(you)电(dian)工仪(yi)表、指示仪(yi)表、记录仪(yi)表、积算仪(yi)表，对发电(dian)机(ji)来(lai)说还(hai)需要装(zhuang)有(you)频率表。

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