一、什么是三相多功能電力儀表

三(san)相多功能(neng)電力儀表(biao)(biao)是一種具有可編程測量(liang)(liang)、顯示、數(shu)字通訊和電能(neng)脈沖變(bian)送輸出等多功能(neng)智(zhi)能(neng)儀表(biao)(biao)，能(neng)夠完成電量(liang)(liang)測量(liang)(liang)、電能(neng)計(ji)量(liang)(liang)、數(shu)據顯示、采集及傳(chuan)輸，可廣(guang)泛應(ying)用變(bian)電站自動(dong)化、配電自動(dong)化、智(zhi)能(neng)建筑、企業(ye)內部的(de)電能(neng)測量(liang)(liang)、管理(li)、考核。

二、三相多功能電力儀表怎么使用

三(san)(san)相多功能電(dian)(dian)力儀表(biao)是(shi)一種用于測量(liang)電(dian)(dian)力參(can)數(shu)(shu)的設備(bei)，它可以(yi)測量(liang)電(dian)(dian)壓、電(dian)(dian)流(liu)、功率、功率因數(shu)(shu)、電(dian)(dian)能等多種參(can)數(shu)(shu)，使用三(san)(san)項多功能電(dian)(dian)力儀表(biao)的方法如下：

1、安裝方法

（1）在固定的(de)(de)配電柜上(shang)，選(xuan)擇合適的(de)(de)地方開(kai)一個開(kai)孔尺(chi)寸的(de)(de)安裝(zhuang)孔。

（2）取出儀表，松開定(ding)(ding)位螺(luo)絲，取下(xia)固定(ding)(ding)夾。

（3）將儀表安(an)裝插(cha)入配電柜的儀表孔(kong)中(zhong)。

（4）插入儀表的固定夾，固定定位螺絲。

2、接線方法

三相多功能電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)儀表(biao)的接(jie)(jie)線(xian)(xian)(xian)(xian)方法一般分為兩種(zhong)：直(zhi)(zhi)接(jie)(jie)接(jie)(jie)線(xian)(xian)(xian)(xian)和互(hu)感(gan)器(qi)接(jie)(jie)線(xian)(xian)(xian)(xian)。直(zhi)(zhi)接(jie)(jie)接(jie)(jie)線(xian)(xian)(xian)(xian)是(shi)(shi)將(jiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)儀表(biao)的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源線(xian)(xian)(xian)(xian)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)線(xian)(xian)(xian)(xian)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)線(xian)(xian)(xian)(xian)直(zhi)(zhi)接(jie)(jie)接(jie)(jie)入電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源、負載等電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)中(zhong)，適用(yong)于小功率電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)。互(hu)感(gan)器(qi)接(jie)(jie)線(xian)(xian)(xian)(xian)是(shi)(shi)將(jiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)儀表(biao)的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源線(xian)(xian)(xian)(xian)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)線(xian)(xian)(xian)(xian)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)線(xian)(xian)(xian)(xian)分別接(jie)(jie)入互(hu)感(gan)器(qi)中(zhong)，再將(jiang)互(hu)感(gan)器(qi)接(jie)(jie)入電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源、負載等電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)中(zhong)，適用(yong)于大功率電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)。

3、參數設置

在(zai)使(shi)用三相多功能電(dian)力儀表(biao)之前，需要對(dui)其進行參(can)(can)數(shu)設(she)置。參(can)(can)數(shu)設(she)置包括電(dian)壓、電(dian)流(liu)、功率因數(shu)、電(dian)能等參(can)(can)數(shu)的設(she)定。一般情(qing)況(kuang)下，電(dian)力儀表(biao)會有一個菜(cai)單界面，用戶可(ke)以通過菜(cai)單界面進行參(can)(can)數(shu)設(she)置。

4、數據讀取

三(san)相多(duo)功(gong)能電(dian)(dian)力儀表(biao)可(ke)(ke)以(yi)通過顯示屏顯示電(dian)(dian)壓、電(dian)(dian)流、功(gong)率(lv)、功(gong)率(lv)因數(shu)(shu)(shu)、電(dian)(dian)能等參數(shu)(shu)(shu)的數(shu)(shu)(shu)值。此外，電(dian)(dian)力儀表(biao)還可(ke)(ke)以(yi)通過通訊接口將數(shu)(shu)(shu)據(ju)傳(chuan)輸到(dao)計算機等設備中，以(yi)便進行數(shu)(shu)(shu)據(ju)分析和處理。

三、多功能電力儀表使用說明及注意事項

多功能電力儀表使用要注意的事項有很多，包括：

1、使用前，儀表需(xu)通電15分鐘。

2、注意防止震(zhen)動和沖(chong)擊(ji)，不(bu)要在有超(chao)量(liang)灰(hui)塵和超(chao)量(liang)有害氣體的(de)地(di)方使用(yong)。

3、輸入(ru)導線不(bu)宜過長，如被測信號輸入(ru)端較(jiao)長時(shi)請(qing)試用雙絞屏蔽線。

4、若信(xin)號伴隨(sui)高頻(pin)(pin)干(gan)擾，應在線里(li)試用低頻(pin)(pin)過濾器。

5、長時間(jian)存(cun)放未使用時，請每三(san)個月通電一(yi)次不(bu)少于4小時。

6、長期保(bao)存應避開直射光線，宜(yi)存放(fang)在環境溫(wen)度-25°C~55°C.

7、如儀表無(wu)顯示，應(ying)先檢(jian)查輔助(zhu)電源，電壓(ya)是否在范圍內。

8、如顯示不正常(chang)，檢查輸入信號(hao)(hao)是否正常(chang)及信號(hao)(hao)接線端是否擰緊。

9、除非(fei)PT有(you)足夠功(gong)率，否則不能使用PT信(xin)號(hao)同時作為輔助電源，以保證儀表正常工作。

10、CT回路中的電流接(jie)線端子螺絲務必擰(ning)緊(jin)，保證進/出線接(jie)觸可靠，以免產(chan)生故障。

11、若要校驗儀(yi)表(biao)，校驗儀(yi)器應(ying)優(you)于(yu)0.1級，才能保證校驗精度。