低(di)压(ya)电(dian)(dian)(dian)(dian)(dian)器(qi)导(dao)体(ti)的(de)(de)(de)(de)(de)(de)选(xuan)择：1.导(dao)体(ti)的(de)(de)(de)(de)(de)(de)类型应(ying)(ying)(ying)按(an)敷设(she)方式(shi)及环(huan)境(jing)条(tiao)件(jian)(jian)选(xuan)择。绝缘(yuan)导(dao)体(ti)除满(man)足(zu)上述条(tiao)件(jian)(jian)外，尚应(ying)(ying)(ying)符合(he)工作电(dian)(dian)(dian)(dian)(dian)压(ya)的(de)(de)(de)(de)(de)(de)要(yao)(yao)求。2.选(xuan)择导(dao)体(ti)截(jie)面(mian)(mian)(mian)(mian)，应(ying)(ying)(ying)符合(he)下列要(yao)(yao)求：1）线(xian)(xian)(xian)路电(dian)(dian)(dian)(dian)(dian)压(ya)损(sun)失应(ying)(ying)(ying)满(man)足(zu)用电(dian)(dian)(dian)(dian)(dian)设(she)备正(zheng)常工作及起动时(shi)端电(dian)(dian)(dian)(dian)(dian)压(ya)的(de)(de)(de)(de)(de)(de)要(yao)(yao)求；2）按(an)敷设(she)方式(shi)及环(huan)境(jing)条(tiao)件(jian)(jian)确定(ding)(ding)的(de)(de)(de)(de)(de)(de)导(dao)体(ti)载流(liu)量，不应(ying)(ying)(ying)小于计算电(dian)(dian)(dian)(dian)(dian)流(liu)；3）导(dao)体(ti)应(ying)(ying)(ying)满(man)足(zu)动稳(wen)定(ding)(ding)与热稳(wen)定(ding)(ding)的(de)(de)(de)(de)(de)(de)要(yao)(yao)求；4）导(dao)体(ti)较小截(jie)面(mian)(mian)(mian)(mian)应(ying)(ying)(ying)满(man)足(zu)机械(xie)强度的(de)(de)(de)(de)(de)(de)要(yao)(yao)求，固定(ding)(ding)敷设(she)的(de)(de)(de)(de)(de)(de)导(dao)线(xian)(xian)(xian)较小芯线(xian)(xian)(xian)截(jie)面(mian)(mian)(mian)(mian)应(ying)(ying)(ying)符合(he)表。3.沿不同冷(leng)(leng)却条(tiao)件(jian)(jian)的(de)(de)(de)(de)(de)(de)路径(jing)敷设(she)绝缘(yuan)导(dao)线(xian)(xian)(xian)和(he)(he)电(dian)(dian)(dian)(dian)(dian)缆时(shi)，当冷(leng)(leng)却条(tiao)件(jian)(jian)较坏段(duan)的(de)(de)(de)(de)(de)(de)长度超过5m，应(ying)(ying)(ying)按(an)该(gai)(gai)段(duan)条(tiao)件(jian)(jian)选(xuan)择绝缘(yuan)导(dao)线(xian)(xian)(xian)和(he)(he)电(dian)(dian)(dian)(dian)(dian)缆的(de)(de)(de)(de)(de)(de)截(jie)面(mian)(mian)(mian)(mian)，或只对该(gai)(gai)段(duan)采(cai)用大截(jie)面(mian)(mian)(mian)(mian)的(de)(de)(de)(de)(de)(de)绝缘(yuan)导(dao)线(xian)(xian)(xian)和(he)(he)电(dian)(dian)(dian)(dian)(dian)缆。低(di)压(ya)电(dian)(dian)(dian)(dian)(dian)器(qi)的(de)(de)(de)(de)(de)(de)种类繁多(duo)，分(fen)类方法有(you)很多(duo)种。黑龙江三菱低(di)压(ya)电(dian)(dian)(dian)(dian)(dian)器(qi)

低压电(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)注(zhu)意事项(xiang)：控制(zhi)(zhi)对(dui)象(如电(dian)(dian)(dian)(dian)(dian)(dian)动机(ji)或(huo)其(qi)他(ta)用(yong)电(dian)(dian)(dian)(dian)(dian)(dian)设(she)备)的(de)(de)分类和使(shi)(shi)用(yong)环境;确认有关(guan)的(de)(de)技术(shu)数据(ju)，如控制(zhi)(zhi)对(dui)象的(de)(de)额定电(dian)(dian)(dian)(dian)(dian)(dian)压、额定功(gong)率(lv)、启动电(dian)(dian)(dian)(dian)(dian)(dian)流倍数、负载性质、操作(zuo)频率(lv)、工作(zuo)制(zhi)(zhi)等;了解电(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)的(de)(de)正常工作(zuo)条件，如环境空(kong)气(qi)湿(shi)度、相对(dui)湿(shi)度、海拔高度、允许安装(zhuang)方位角度和抗(kang)冲(chong)击振动、有害气(qi)体、导电(dian)(dian)(dian)(dian)(dian)(dian)尘埃、雨雪浸袭的(de)(de)能(neng)力(li);了解电(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)的(de)(de)主要技术(shu)性能(neng)(或(huo)技术(shu)条件)，如用(yong)途、分类、额定电(dian)(dian)(dian)(dian)(dian)(dian)压、额定控制(zhi)(zhi)功(gong)率(lv)、接通能(neng)力(li)、分断能(neng)力(li)、允许操作(zuo)频率(lv)、工作(zuo)制(zhi)(zhi)和使(shi)(shi)用(yong)寿命等。各种(zhong)电(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)元(yuan)件经过长(zhang)期使(shi)(shi)用(yong)或(huo)因使(shi)(shi)用(yong)不当(dang)会造成(cheng)损坏，这时就必须及时进行维修。金华智(zhi)能(neng)低压电(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)非开关(guan)电(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)可以(yi)完成(cheng)对(dui)电(dian)(dian)(dian)(dian)(dian)(dian)气(qi)量或(huo)者电(dian)(dian)(dian)(dian)(dian)(dian)气(qi)量的(de)(de)测量、变换和放(fang)大(da)等任务，例如电(dian)(dian)(dian)(dian)(dian)(dian)压互感(gan)器(qi)(qi)、电(dian)(dian)(dian)(dian)(dian)(dian)流互感(gan)器(qi)(qi)和传感(gan)器(qi)(qi)等。

低压(ya)(ya)(ya)(ya)电(dian)(dian)器(qi)是(shi)指工作(zuo)在交流(liu)(liu)电(dian)(dian)压(ya)(ya)(ya)(ya)小于1200V、直流(liu)(liu)电(dian)(dian)压(ya)(ya)(ya)(ya)小于1500V的(de)(de)电(dian)(dian)路(lu)中(zhong)，起通断(duan)、保(bao)护(hu)、控(kong)制(zhi)或(huo)(huo)(huo)(huo)调(diao)节作(zuo)用(yong)的(de)(de)电(dian)(dian)气设备，以及利用(yong)电(dian)(dian)能来控(kong)制(zhi)、保(bao)护(hu)和(he)调(diao)节非电(dian)(dian)过(guo)程(cheng)和(he)非电(dian)(dian)装置的(de)(de)电(dian)(dian)气设备。电(dian)(dian)力系统的(de)(de)负荷绝大(da)部分是(shi)通过(guo)低压(ya)(ya)(ya)(ya)电(dian)(dian)器(qi)供(gong)给的(de)(de)。电(dian)(dian)力用(yong)户(hu)的(de)(de)各(ge)种生产机械设备，大(da)部分是(shi)采(cai)用(yong)低压(ya)(ya)(ya)(ya)供(gong)电(dian)(dian)。在庞大(da)的(de)(de)低压(ya)(ya)(ya)(ya)配电(dian)(dian)系统和(he)低压(ya)(ya)(ya)(ya)用(yong)电(dian)(dian)系统中(zhong)，需要(yao)(yao)大(da)量的(de)(de)控(kong)制(zhi)、保(bao)护(hu)用(yong)低压(ya)(ya)(ya)(ya)电(dian)(dian)器(qi)。低压(ya)(ya)(ya)(ya)电(dian)(dian)器(qi)在电(dian)(dian)路(lu)中(zhong)的(de)(de)用(yong)途是(shi)根据外界施加的(de)(de)信号或(huo)(huo)(huo)(huo)要(yao)(yao)求，自动或(huo)(huo)(huo)(huo)手动地(di)接通或(huo)(huo)(huo)(huo)分断(duan)电(dian)(dian)路(lu)，从而连续或(huo)(huo)(huo)(huo)断(duan)续地(di)改变电(dian)(dian)路(lu)的(de)(de)参数(shu)或(huo)(huo)(huo)(huo)状态(tai)，以实(shi)现(xian)对(dui)电(dian)(dian)路(lu)或(huo)(huo)(huo)(huo)非电(dian)(dian)对(dui)象的(de)(de)切换(huan)、控(kong)制(zhi)、保(bao)护(hu)、检(jian)测、变换(huan)和(he)调(diao)节。低压(ya)(ya)(ya)(ya)电(dian)(dian)器(qi)的(de)(de)特点是(shi)品种多(duo)、用(yong)量大(da)和(he)用(yong)途广！！

空气开(kai)关(guan)，又名空气断(duan)路器(qi)(qi)(qi)，是断(duan)路器(qi)(qi)(qi)的(de)一(yi)种。是一(yi)种只要电(dian)(dian)(dian)(dian)路中(zhong)电(dian)(dian)(dian)(dian)流(liu)(liu)(liu)超过额定(ding)电(dian)(dian)(dian)(dian)流(liu)(liu)(liu)就会自动(dong)(dong)断(duan)开(kai)的(de)开(kai)关(guan)。空气开(kai)关(guan)是低压配电(dian)(dian)(dian)(dian)网(wang)络和电(dian)(dian)(dian)(dian)力拖动(dong)(dong)系统中(zhong)非常重要的(de)一(yi)种电(dian)(dian)(dian)(dian)器(qi)(qi)(qi)，它(ta)集(ji)控制和多(duo)种保护功能于一(yi)身(shen)。除能完(wan)成接(jie)触和分(fen)(fen)断(duan)电(dian)(dian)(dian)(dian)路外，尚能对电(dian)(dian)(dian)(dian)路或电(dian)(dian)(dian)(dian)气设备发生的(de)短(duan)路、严重过载及(ji)欠电(dian)(dian)(dian)(dian)压等进(jin)行保护，同时(shi)(shi)也可(ke)以(yi)用(yong)于不(bu)频繁地启动(dong)(dong)电(dian)(dian)(dian)(dian)动(dong)(dong)机。脱(tuo)(tuo)(tuo)扣(kou)(kou)(kou)方(fang)(fang)式有(you)热(re)动(dong)(dong)式脱(tuo)(tuo)(tuo)扣(kou)(kou)(kou)、电(dian)(dian)(dian)(dian)磁(ci)式脱(tuo)(tuo)(tuo)扣(kou)(kou)(kou)和复式脱(tuo)(tuo)(tuo)扣(kou)(kou)(kou)3种。空气开(kai)关(guan)(图1)当线(xian)路发生一(yi)般性过载时(shi)(shi)，过载电(dian)(dian)(dian)(dian)流(liu)(liu)(liu)虽不(bu)能使(shi)(shi)电(dian)(dian)(dian)(dian)磁(ci)脱(tuo)(tuo)(tuo)扣(kou)(kou)(kou)器(qi)(qi)(qi)动(dong)(dong)作(zuo)，但能使(shi)(shi)热(re)元件产生一(yi)定(ding)热(re)量，促使(shi)(shi)双金属片(pian)受(shou)热(re)向上(shang)弯曲，推动(dong)(dong)杠(gang)(gang)杆使(shi)(shi)搭钩与锁(suo)扣(kou)(kou)(kou)脱(tuo)(tuo)(tuo)开(kai)，将主(zhu)触头分(fen)(fen)断(duan)，切断(duan)电(dian)(dian)(dian)(dian)源。当线(xian)路发生短(duan)路或严重过载电(dian)(dian)(dian)(dian)流(liu)(liu)(liu)时(shi)(shi)，短(duan)路电(dian)(dian)(dian)(dian)流(liu)(liu)(liu)超过瞬(shun)时(shi)(shi)脱(tuo)(tuo)(tuo)扣(kou)(kou)(kou)整定(ding)电(dian)(dian)(dian)(dian)流(liu)(liu)(liu)值，电(dian)(dian)(dian)(dian)磁(ci)脱(tuo)(tuo)(tuo)扣(kou)(kou)(kou)器(qi)(qi)(qi)产生足够(gou)大的(de)吸力，将衔铁吸合并撞击杠(gang)(gang)杆，使(shi)(shi)搭钩绕转(zhuan)轴(zhou)座向上(shang)转(zhuan)动(dong)(dong)与锁(suo)扣(kou)(kou)(kou)脱(tuo)(tuo)(tuo)开(kai)，锁(suo)扣(kou)(kou)(kou)在反力弹(dan)簧(huang)的(de)作(zuo)用(yong)下将三副主(zhu)触头分(fen)(fen)断(duan)，切断(duan)电(dian)(dian)(dian)(dian)源。低压电(dian)(dian)(dian)(dian)器(qi)(qi)(qi)有(you)很多(duo)种，根据其结(jie)构、使(shi)(shi)用(yong)和控制对象，可(ke)以(yi)有(you)不(bu)同的(de)分(fen)(fen)类方(fang)(fang)法；

低压(ya)电(dian)(dian)(dian)(dian)(dian)(dian)器有(you)哪些(xie)(xie)基本(ben)结构？电(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)式低压(ya)电(dian)(dian)(dian)(dian)(dian)(dian)器大(da)都(dou)有(you)两(liang)个(ge)(ge)主要组成部(bu)分，即：感测(ce)部(bu)分──电(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)机构和(he)执行部(bu)分──触头系统。1．电(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)机构。电(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)机构的(de)(de)(de)主要作用是(shi)将电(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)能量(liang)转换成机械能量(liang)，带动触头动作，从(cong)而完(wan)成接通或(huo)分断电(dian)(dian)(dian)(dian)(dian)(dian)路的(de)(de)(de)功(gong)能。电(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)机构由(you)吸引(yin)线(xian)(xian)圈(quan)、铁(tie)(tie)(tie)心(xin)(xin)(xin)和(he)衔(xian)铁(tie)(tie)(tie)3个(ge)(ge)基本(ben)部(bu)分组成。2.直流(liu)(liu)电(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)铁(tie)(tie)(tie)和(he)交(jiao)流(liu)(liu)电(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)铁(tie)(tie)(tie)。按吸引(yin)线(xian)(xian)圈(quan)所通电(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)性质的(de)(de)(de)不同，电(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)铁(tie)(tie)(tie)可分为(wei)直流(liu)(liu)电(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)铁(tie)(tie)(tie)和(he)交(jiao)流(liu)(liu)电(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)铁(tie)(tie)(tie)。直流(liu)(liu)电(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)铁(tie)(tie)(tie)由(you)于通入的(de)(de)(de)是(shi)直流(liu)(liu)电(dian)(dian)(dian)(dian)(dian)(dian)，其铁(tie)(tie)(tie)心(xin)(xin)(xin)不发热(re)，只有(you)线(xian)(xian)圈(quan)发热(re)，因(yin)此线(xian)(xian)圈(quan)与(yu)铁(tie)(tie)(tie)心(xin)(xin)(xin)接触以(yi)(yi)(yi)利散热(re)，线(xian)(xian)圈(quan)做成无骨(gu)(gu)架、高而薄(bo)的(de)(de)(de)瘦高型(xing)，以(yi)(yi)(yi)改善线(xian)(xian)圈(quan)自身(shen)散热(re)。铁(tie)(tie)(tie)心(xin)(xin)(xin)和(he)衔(xian)铁(tie)(tie)(tie)由(you)软(ruan)钢和(he)工(gong)程(cheng)纯铁(tie)(tie)(tie)制成。交(jiao)流(liu)(liu)电(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)铁(tie)(tie)(tie)由(you)于通入的(de)(de)(de)是(shi)交(jiao)流(liu)(liu)电(dian)(dian)(dian)(dian)(dian)(dian)，铁(tie)(tie)(tie)心(xin)(xin)(xin)中存在磁(ci)滞损耗和(he)涡(wo)(wo)流(liu)(liu)损耗，线(xian)(xian)圈(quan)和(he)铁(tie)(tie)(tie)心(xin)(xin)(xin)都(dou)发热(re)，所以(yi)(yi)(yi)交(jiao)流(liu)(liu)电(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)铁(tie)(tie)(tie)的(de)(de)(de)吸引(yin)线(xian)(xian)圈(quan)有(you)骨(gu)(gu)架，使(shi)铁(tie)(tie)(tie)心(xin)(xin)(xin)与(yu)线(xian)(xian)圈(quan)隔离并(bing)将线(xian)(xian)圈(quan)制成短而厚的(de)(de)(de)矮(ai)胖(pang)形，以(yi)(yi)(yi)利于铁(tie)(tie)(tie)心(xin)(xin)(xin)和(he)线(xian)(xian)圈(quan)的(de)(de)(de)散热(re)。铁(tie)(tie)(tie)心(xin)(xin)(xin)用硅钢片(pian)叠加而成，以(yi)(yi)(yi)减小涡(wo)(wo)流(liu)(liu)！关于低压(ya)电(dian)(dian)(dian)(dian)(dian)(dian)器的(de)(de)(de)电(dian)(dian)(dian)(dian)(dian)(dian)压(ya)范围，见(jian)GB/T 14048.1-2012《低压(ya)开关设备和(he)控制设备 第1部(bu)分：总则》。深圳三菱低压(ya)电(dian)(dian)(dian)(dian)(dian)(dian)器有(you)哪些(xie)(xie)

低压电器(qi)是(shi)一种能根据(ju)外界的(de)信号和要(yao)求(qiu)，手动或自动地接通、断开电路；黑龙(long)江(jiang)三菱低压电器(qi)

断(duan)路(lu)(lu)(lu)器(qi)又叫空(kong)气开(kai)关(guan)，是一(yi)(yi)种很基本的(de)(de)低压(ya)电(dian)(dian)(dian)(dian)器(qi)，断(duan)路(lu)(lu)(lu)器(qi)具有过(guo)载(zai)、短路(lu)(lu)(lu)和(he)欠电(dian)(dian)(dian)(dian)压(ya)保护(hu)功能，能保护(hu)线路(lu)(lu)(lu)和(he)电(dian)(dian)(dian)(dian)源的(de)(de)能力。它(ta)可用来分配电(dian)(dian)(dian)(dian)能，不(bu)频繁地(di)启动(dong)异步电(dian)(dian)(dian)(dian)动(dong)机，对电(dian)(dian)(dian)(dian)源线路(lu)(lu)(lu)及电(dian)(dian)(dian)(dian)动(dong)机等(deng)(deng)实行保护(hu)，当(dang)它(ta)们发生严重(zhong)的(de)(de)过(guo)载(zai)或者短路(lu)(lu)(lu)及欠压(ya)等(deng)(deng)故(gu)(gu)障时能自动(dong)切断(duan)电(dian)(dian)(dian)(dian)路(lu)(lu)(lu)，其功能相当(dang)于(yu)熔断(duan)器(qi)式(shi)开(kai)关(guan)与过(guo)欠热继(ji)电(dian)(dian)(dian)(dian)器(qi)等(deng)(deng)的(de)(de)组(zu)合。而且在(zai)分断(duan)故(gu)(gu)障电(dian)(dian)(dian)(dian)流(liu)后(hou)一(yi)(yi)般不(bu)需要变更(geng)零部件，所以获得了普遍的(de)(de)应(ying)用。一(yi)(yi)旦房屋配线中的(de)(de)电(dian)(dian)(dian)(dian)流(liu)流(liu)量(liang)过(guo)大(da)，这种简单的(de)(de)电(dian)(dian)(dian)(dian)路(lu)(lu)(lu)装置就会切断(duan)电(dian)(dian)(dian)(dian)源，直(zhi)至故(gu)(gu)障被排除。如果没(mei)有断(duan)路(lu)(lu)(lu)器(qi)(或其替(ti)代(dai)品——保险丝)，家庭用电(dian)(dian)(dian)(dian)就会非常(chang)不(bu)方便，原因在(zai)于(yu)，只(zhi)是线路(lu)(lu)(lu)问题和(he)设备故(gu)(gu)障就可能会造成火灾和(he)其他事故(gu)(gu)~黑龙江三菱(ling)低压(ya)电(dian)(dian)(dian)(dian)器(qi)

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