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根据电工学原理,我们来学习一下电表的组成
作者:临沂贝搏体育网站回收公司    发布于:2017-12-11 11:02    阅读数:
根据(ju)电(dian)(dian)(dian)(dian)(dian)工学原(yuan)理,我们来学习一(yi)(yi)下(xia)电(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)的(de)(de)组(zu)成和主(zhu)要部件(jian),电(dian)(dian)(dian)(dian)(dian)能(neng)(neng)的(de)(de)仪(yi)表(biao)(biao)(biao)叫做电(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(又(you)称电(dian)(dian)(dian)(dian)(dian)度表(biao)(biao)(biao)、电(dian)(dian)(dian)(dian)(dian)能(neng)(neng)表(biao)(biao)(biao))。电(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)是测量某一(yi)(yi)段时(shi)间内所(suo)消(xiao)耗的(de)(de)电(dian)(dian)(dian)(dian)(dian)能(neng)(neng),它(ta)是累计仪(yi)表(biao)(biao)(biao)。用电(dian)(dian)(dian)(dian)(dian)动(dong)系(xi)直(zhi)(zhi)流电(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)测量直(zhi)(zhi)流电(dian)(dian)(dian)(dian)(dian)能(neng)(neng),用感应系(xi)交流电(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)测量交流电(dian)(dian)(dian)(dian)(dian)能(neng)(neng)。用在(zai)交流电(dian)(dian)(dian)(dian)(dian)流中的(de)(de)电(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao),可(ke)分(fen)为两(liang)大类:单相(xiang)电(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)盒三相(xiang)电(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)。那么在(zai)本文里(li)我们先来了(le)解下(xia)电(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)的(de)(de)结(jie)构(gou)和电(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)的(de)(de)工作原(yuan)理。
表(biao)主要是由驱动(dong)部件、转(zhuan)动(dong)部分、制(zhi)(zhi)动(dong)部分和积算机构等组成。驱动(dong)部件由电(dian)压(ya)元件和电(dian)流元件组成。转(zhuan)动(dong)部分的(de)铝制(zhi)(zhi)圆盘装在驱动(dong)部件和制(zhi)(zhi)动(dong)磁铁的(de)空隙(xi)中,右图所示(shi)是一只单相交(jiao)流电(dian)表(biao)的(de)结构。图中各部分所指:
1:铝制圆(yuan)盘、2:串(chuan)联线圈(quan)电磁铁(tie)、3:制动永久磁铁(tie)、4:并联线圈(quan)电磁铁(tie)、5:传到计数机构的齿轮、6:接线端子板
工作(zuo)原理是:当(dang)电(dian)表接入被测电(dian)路后,被测电(dian)路电(dian)压(ya)加在(zai)(zai)电(dian)压(ya)线(xian)圈上,被测电(dian)路电(dian)流(liu)通(tong)(tong)过电(dian)流(liu)线(xian)圈后,产生(sheng)两个(ge)交变磁通(tong)(tong)穿过铝(lv)(lv)(lv)盘(pan),这两个(ge)磁通(tong)(tong)在(zai)(zai)时间上相(xiang)同(tong),分别在(zai)(zai)铝(lv)(lv)(lv)盘(pan)上产生(sheng)涡流(liu)。由于(yu)磁通(tong)(tong)与涡流(liu)的相(xiang)互作(zuo)用(yong)而(er)产生(sheng)转动(dong)(dong)力矩,使铝(lv)(lv)(lv)盘(pan)转动(dong)(dong)。制(zhi)(zhi)动(dong)(dong)磁铁(tie)(tie)的磁通(tong)(tong),也穿过铝(lv)(lv)(lv)盘(pan),当(dang)铝(lv)(lv)(lv)盘(pan)转动(dong)(dong)时,切割此磁通(tong)(tong),在(zai)(zai)铝(lv)(lv)(lv)盘(pan)上感应出电(dian)流(liu),这电(dian)流(liu)和制(zhi)(zhi)动(dong)(dong)磁铁(tie)(tie)的磁通(tong)(tong)相(xiang)互作(zuo)用(yong)而(er)产生(sheng)一个(ge)与铝(lv)(lv)(lv)盘(pan)旋转方向(xiang)相(xiang)反的制(zhi)(zhi)动(dong)(dong)力矩,使铝(lv)(lv)(lv)盘(pan)的转速达到均匀。
  大家可(ke)以明白(bai),无论是(shi)哪种,里面主(zhu)要(yao)是(shi)电(dian)磁铁,其(qi)主(zhu)要(yao)成(cheng)份是(shi)铜(tong)(tong),所以拆废(fei)旧电(dian)表主(zhu)要(yao)回收的(de)有铝,铜(tong)(tong),塑料制品.而(er)这里面最有价值(zhi)的(de)产(chan)品就是(shi)铜(tong)(tong),根据市(shi)场上铜(tong)(tong)的(de)价格来(lai)决(jue)定废(fei)旧电(dian)表的(de)价格.
  目前废(fei)(fei)旧电(dian)(dian)表(biao)的来源(yuan)主要有:农电(dian)(dian)网(wang)改(gai)造,局部城区改(gai)造,个别回(hui)收站以废(fei)(fei)旧垃圾回(hui)收等几种方(fang)式(shi),无(wu)论(lun)哪种方(fang)式(shi),只要数量够(gou)大,就可以让废(fei)(fei)旧电(dian)(dian)表(biao)回(hui)收公司(si)上(shang)门现(xian)金回(hui)收.
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