現(xian)在(zai)每一家每一戶基本上都有電(dian)器了(le),而且什(shen)么冰箱,電(dian)腦(nao),微波爐等大功率(lv)的(de)電(dian)器已(yi)經(jing)不是(shi)有錢人家的(de)專利了(le),但是(shi)隨著電(dian)器功率(lv)的(de)增大,又(you)有另外(wai)一個新問(wen)題誕生了(le),就是(shi)電表與電(dian)線的最大負載跟不上了(le),一旦電(dian)線或電(dian)表(biao)(biao)(biao)負載過大,輕者損(sun)壞電(dian)表(biao)(biao)(biao)電(dian)線,嚴重(zhong)著還(huan)會產生火災,所以選(xuan)擇一個正確的符合你家(jia)庭(ting)情(qing)況的電(dian)表(biao)(biao)(biao)也是非常有必要的,那你懂(dong)得如何識別電(dian)表(biao)(biao)(biao)的型號(hao)嗎,你知道(dao)該如何選(xuan)擇家(jia)庭(ting)電(dian)表(biao)(biao)(biao)嗎?
家庭電表(biao)該如何選擇
家(jia)庭電(dian)(dian)表的選(xuan)擇要以(yi)你(ni)家(jia)電(dian)(dian)器的總(zong)(zong)核載功率為基準,就是假如你(ni)家(jia)所有的電(dian)(dian)器都開了,總(zong)(zong)功率有多少,而且(qie)你(ni)還(huan)要預測你(ni)家(jia)里還(huan)會買什么電(dian)(dian)器,按照總(zong)(zong)需要的功率來確定你(ni)電(dian)(dian)表的型號。
電能表(biao)的型號
類別(bie)代號:一(yi)般(ban)電能(neng)表的類別(bie)代號均為D。
組別代(dai)(dai)號:A代(dai)(dai)表(biao)安培小時計(ji);B代(dai)(dai)表(biao)標準;D代(dai)(dai)表(biao)單相電能表(biao);F代(dai)(dai)表(biao)伏特(te)小時計(ji);J代(dai)(dai)表(biao)直(zhi)流;S代(dai)(dai)表(biao)三相三線(xian);T代(dai)(dai)表(biao)三相四線(xian);X代(dai)(dai)表(biao)無功。
功能代(dai)(dai)號:F代(dai)(dai)表分(fen)時計費;S代(dai)(dai)表電子式;Y代(dai)(dai)表預(yu)付費式;D代(dai)(dai)表多功能;M代(dai)(dai)表脈沖式;Z代(dai)(dai)表最大需(xu)量。
設計序號:一(yi)般用數字表示。
改進(jin)序號(hao):一般用漢(han)語拼音字母表(biao)示。
派生代(dai)(dai)(dai)號:T代(dai)(dai)(dai)表(biao)(biao)濕熱、干(gan)熱兩(liang)用;TH代(dai)(dai)(dai)表(biao)(biao)濕熱專(zhuan)用;TA代(dai)(dai)(dai)表(biao)(biao)干(gan)熱專(zhuan)用;G代(dai)(dai)(dai)表(biao)(biao)高原用;H代(dai)(dai)(dai)表(biao)(biao)船用;F代(dai)(dai)(dai)表(biao)(biao)化工防腐(fu)。
目前,電(dian)能(neng)(neng)(neng)表(biao)(biao)的形(xing)式及功(gong)(gong)(gong)能(neng)(neng)(neng)是多(duo)種多(duo)樣的,各電(dian)能(neng)(neng)(neng)表(biao)(biao)品(pin)牌(pai)廠家在型號命名上也不盡(jin)完全相同(tong),普(pu)通有(you)功(gong)(gong)(gong)電(dian)能(neng)(neng)(neng)表(biao)(biao)只用(yong)兩個字(zi)母(mu)表(biao)(biao)示其(qi)功(gong)(gong)(gong)能(neng)(neng)(neng)和(he)用(yong)途。有(you)特殊功(gong)(gong)(gong)能(neng)(neng)(neng)或電(dian)子式的電(dian)能(neng)(neng)(neng)表(biao)(biao)多(duo)用(yong)三個字(zi)母(mu)表(biao)(biao)示其(qi)功(gong)(gong)(gong)能(neng)(neng)(neng)和(he)用(yong)途。舉(ju)例(li)如下。
①DD28表(biao)示單(dan)相電能表(biao)。第一個字母(mu)D表(biao)示電能表(biao),第二個字母(mu)D表(biao)示單(dan)相,9Q為設(she)計序號。
②DS862表(biao)(biao)示三(san)相三(san)線(xian)有功(gong)電(dian)能(neng)表(biao)(biao)。第一(yi)個字(zi)(zi)母D表(biao)(biao)示電(dian)能(neng)表(biao)(biao),第二個字(zi)(zi)母S表(biao)(biao)示三(san)相三(san)線(xian),86為設計序(xu)號(hao),2為改進序(xu)號(hao)。
③DT862表(biao)(biao)示(shi)(shi)三相(xiang)四(si)線有功電能表(biao)(biao)。D表(biao)(biao)示(shi)(shi)電能表(biao)(biao),T表(biao)(biao)示(shi)(shi)三相(xiang)四(si)線,86為設(she)計序號,2表(biao)(biao)示(shi)(shi)改進序號。
④叨表示(shi)直(zhi)流電能(neng)表。D表示(shi)電能(neng)表,J表示(shi)直(zhi)流。
⑤DB表示標(biao)準(zhun)(zhun)電能表。D表示電能表,B表示標(biao)準(zhun)(zhun)。
⑥DZ表示最(zui)大(da)需(xu)量(liang)電(dian)能(neng)表。D表示電(dian)能(neng)表,z表示最(zui)大(da)需(xu)量(liang)。
⑦¤禿(tu)表(biao)(biao)示(shi)三(san)相(xiang)(xiang)三(san)線(xian)標準電能表(biao)(biao)。D表(biao)(biao)示(shi)電能表(biao)(biao),B表(biao)(biao)示(shi)標準,S表(biao)(biao)示(shi)三(san)相(xiang)(xiang)三(san)線(xian)。
⑧DBT表(biao)(biao)示(shi)(shi)三(san)相四(si)線(xian)標準電(dian)能表(biao)(biao)。D表(biao)(biao)示(shi)(shi)電(dian)能表(biao)(biao),B表(biao)(biao)示(shi)(shi)標準,T表(biao)(biao)示(shi)(shi)三(san)相四(si)線(xian)。
⑨DX8表(biao)(biao)示(shi)(shi)無功(gong)電能表(biao)(biao)。D表(biao)(biao)示(shi)(shi)電能表(biao)(biao),X表(biao)(biao)示(shi)(shi)無功(gong),8為設(she)計序號。
⑩DTM31表(biao)(biao)(biao)(biao)示(shi)(shi)三相四線脈(mo)沖電(dian)(dian)能(neng)表(biao)(biao)(biao)(biao),D表(biao)(biao)(biao)(biao)示(shi)(shi)電(dian)(dian)能(neng)表(biao)(biao)(biao)(biao),T表(biao)(biao)(biao)(biao)示(shi)(shi)三相四線,M表(biao)(biao)(biao)(biao)示(shi)(shi)脈(mo)沖,31為(wei)(wei)設計(ji)序號。設計(ji)序號為(wei)(wei)33的電(dian)(dian)能(neng)表(biao)(biao)(biao)(biao)是具有同樣功(gong)能(neng)的無(wu)功(gong)電(dian)(dian)能(neng)表(biao)(biao)(biao)(biao)。該電(dian)(dian)能(neng)表(biao)(biao)(biao)(biao)可用于工(gong)礦企業(ye)及各類(lei)營業(ye)單位計(ji)量有功(gong)電(dian)(dian)能(neng)或無(wu)功(gong)電(dian)(dian)能(neng)。可以(yi)遠距離采(cai)集脈(mo)沖信(xin)號,編程控制調控電(dian)(dian)能(neng),節省人力,提(ti)高工(gong)作(zuo)效(xiao)率。
①DTD18表(biao)(biao)示三相(xiang)四(si)線有功(gong)多功(gong)能(neng)(neng)(neng)電(dian)(dian)(dian)能(neng)(neng)(neng)表(biao)(biao)。D表(biao)(biao)示電(dian)(dian)(dian)能(neng)(neng)(neng)表(biao)(biao),T表(biao)(biao)示三相(xiang)四(si)線,D表(biao)(biao)示多功(gong)能(neng)(neng)(neng),18為設計(ji)(ji)(ji)序(xu)號。該表(biao)(biao)除具有一般計(ji)(ji)(ji)量(liang)(liang)(liang)功(gong)能(neng)(neng)(neng)外,還有峰谷、平(ping)時分(fen)段電(dian)(dian)(dian)能(neng)(neng)(neng)計(ji)(ji)(ji)量(liang)(liang)(liang)及(ji)最大需量(liang)(liang)(liang)顯(xian)示、需量(liang)(liang)(liang)累計(ji)(ji)(ji)等(deng)40多種功(gong)能(neng)(neng)(neng),是工礦企業等(deng)用電(dian)(dian)(dian)部(bu)門實(shi)行多費率(lv)、分(fen)時計(ji)(ji)(ji)價、合理用電(dian)(dian)(dian)的計(ji)(ji)(ji)量(liang)(liang)(liang)儀表(biao)(biao)。
基(ji)本(ben)電流(liu)和額定(ding)最大電流(liu)
基本電(dian)流(liu)是(shi)(shi)確定電(dian)度(du)表有關(guan)特性的電(dian)流(liu)值,額定最大(da)(da)電(dian)流(liu)是(shi)(shi)儀表能(neng)滿(man)足其制(zhi)造(zao)標準規定的準確度(du)的最大(da)(da)電(dian)流(liu)值。
如5(20)A即表示電(dian)度表的基本(ben)電(dian)流為(wei)5A,額(e)定(ding)最大電(dian)流為(wei)20A,對于三相電(dian)度表還應在前面乘(cheng)以相數,如3x5(20)A。
上面(mian)所說(shuo)的(de)基本電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)與最(zui)大(da)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)就(jiu)(jiu)是確定(ding)你(ni)電(dian)(dian)(dian)(dian)(dian)(dian)表(biao)型號(hao)的(de)最(zui)大(da)要點了,一(yi)(yi)般(ban)家(jia)庭的(de)電(dian)(dian)(dian)(dian)(dian)(dian)表(biao)都是選(xuan)擇(ze)雙(shuang)(shuang)相(xiang)的(de),在一(yi)(yi)些家(jia)庭特殊的(de)情(qing)況(kuang)下可(ke)能會選(xuan)擇(ze)三(san)(san)(san)相(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)表(biao),不過一(yi)(yi)般(ban)三(san)(san)(san)相(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)都是工地里(li)面(mian)才使用的(de),家(jia)庭里(li)面(mian)很少(shao)有三(san)(san)(san)相(xiang)電(dian)(dian)(dian)(dian)(dian)(dian),因為電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)都是雙(shuang)(shuang)相(xiang)的(de),確定(ding)好你(ni)家(jia)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)的(de)總功(gong)率后,就(jiu)(jiu)可(ke)以按照公式(shi)推(tui)出(chu)你(ni)家(jia)最(zui)大(da)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)值,在加(jia)上一(yi)(yi)定(ding)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)波動和(he)預備功(gong)率,預備功(gong)率就(jiu)(jiu)是指你(ni)家(jia)還會增加(jia)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi),最(zui)后就(jiu)(jiu)可(ke)以計(ji)算(suan)出(chu)你(ni)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)表(biao)型號(hao)了。
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