一、什么是三相多功能電力儀表
三相多功能(neng)電(dian)(dian)(dian)力儀表是一種具有可編(bian)程(cheng)測量(liang)、顯(xian)示(shi)、數字通訊和電(dian)(dian)(dian)能(neng)脈(mo)沖(chong)變送輸出等多功能(neng)智能(neng)儀表,能(neng)夠(gou)完成電(dian)(dian)(dian)量(liang)測量(liang)、電(dian)(dian)(dian)能(neng)計量(liang)、數據顯(xian)示(shi)、采集及傳輸,可廣泛應(ying)用變電(dian)(dian)(dian)站自(zi)動(dong)化、配電(dian)(dian)(dian)自(zi)動(dong)化、智能(neng)建(jian)筑、企業內部的電(dian)(dian)(dian)能(neng)測量(liang)、管理、考(kao)核。
二、三相多功能電力儀表怎么使用
三相(xiang)多(duo)功(gong)能(neng)電力儀(yi)表(biao)是(shi)一種用于測量(liang)電力參數的設備,它可以測量(liang)電壓(ya)、電流、功(gong)率、功(gong)率因(yin)數、電能(neng)等多(duo)種參數,使用三項多(duo)功(gong)能(neng)電力儀(yi)表(biao)的方法如下:
1、安裝方法
(1)在固定的配電柜上(shang),選(xuan)擇合適的地方開(kai)一個開(kai)孔尺寸的安(an)裝孔。
(2)取出儀表,松開(kai)定位(wei)螺絲,取下(xia)固(gu)定夾。
(3)將儀表安裝插入(ru)配電柜的(de)儀表孔中。
(4)插入儀表的(de)固定夾,固定定位螺絲(si)。
2、接線方法
三相多功(gong)能電(dian)(dian)(dian)(dian)力儀表(biao)的接(jie)(jie)線(xian)(xian)(xian)方法一般分為兩種:直(zhi)接(jie)(jie)接(jie)(jie)線(xian)(xian)(xian)和互(hu)感(gan)器接(jie)(jie)線(xian)(xian)(xian)。直(zhi)接(jie)(jie)接(jie)(jie)線(xian)(xian)(xian)是將(jiang)電(dian)(dian)(dian)(dian)力儀表(biao)的電(dian)(dian)(dian)(dian)源線(xian)(xian)(xian)、電(dian)(dian)(dian)(dian)流線(xian)(xian)(xian)、電(dian)(dian)(dian)(dian)壓(ya)線(xian)(xian)(xian)直(zhi)接(jie)(jie)接(jie)(jie)入(ru)(ru)電(dian)(dian)(dian)(dian)源、負載(zai)等電(dian)(dian)(dian)(dian)路(lu)中(zhong),適用(yong)于小功(gong)率電(dian)(dian)(dian)(dian)路(lu)。互(hu)感(gan)器接(jie)(jie)線(xian)(xian)(xian)是將(jiang)電(dian)(dian)(dian)(dian)力儀表(biao)的電(dian)(dian)(dian)(dian)源線(xian)(xian)(xian)、電(dian)(dian)(dian)(dian)流線(xian)(xian)(xian)、電(dian)(dian)(dian)(dian)壓(ya)線(xian)(xian)(xian)分別接(jie)(jie)入(ru)(ru)互(hu)感(gan)器中(zhong),再將(jiang)互(hu)感(gan)器接(jie)(jie)入(ru)(ru)電(dian)(dian)(dian)(dian)源、負載(zai)等電(dian)(dian)(dian)(dian)路(lu)中(zhong),適用(yong)于大(da)功(gong)率電(dian)(dian)(dian)(dian)路(lu)。
3、參數設置
在使用三(san)相多功能電力儀(yi)表(biao)之前(qian),需要(yao)對其進行參(can)(can)(can)數(shu)(shu)設(she)(she)置。參(can)(can)(can)數(shu)(shu)設(she)(she)置包括(kuo)電壓、電流、功率因數(shu)(shu)、電能等參(can)(can)(can)數(shu)(shu)的(de)設(she)(she)定。一(yi)般情況(kuang)下,電力儀(yi)表(biao)會有一(yi)個菜(cai)單(dan)(dan)界面,用戶可以通過菜(cai)單(dan)(dan)界面進行參(can)(can)(can)數(shu)(shu)設(she)(she)置。
4、數據讀取
三相多功能電力儀(yi)表可以通(tong)(tong)過(guo)顯示屏顯示電壓、電流、功率(lv)、功率(lv)因數(shu)(shu)(shu)、電能等(deng)參(can)數(shu)(shu)(shu)的(de)數(shu)(shu)(shu)值(zhi)。此外,電力儀(yi)表還(huan)可以通(tong)(tong)過(guo)通(tong)(tong)訊接(jie)口將數(shu)(shu)(shu)據傳輸到(dao)計(ji)算機等(deng)設備中,以便(bian)進(jin)行數(shu)(shu)(shu)據分析和處理。
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(shi)用要注(zhu)意的事(shi)項有很多(duo),包(bao)括:
1、使用前(qian),儀表需(xu)通電15分鐘。
2、注意(yi)防止震(zhen)動和沖(chong)擊(ji),不(bu)要在有(you)(you)超量(liang)(liang)灰塵和超量(liang)(liang)有(you)(you)害氣(qi)體的地方使(shi)用。
3、輸(shu)入(ru)導線不宜過(guo)長,如被測(ce)信(xin)號(hao)輸(shu)入(ru)端較長時請試(shi)用雙絞(jiao)屏蔽線。
4、若(ruo)信號伴隨(sui)高(gao)頻干擾,應在(zai)線里(li)試(shi)用低頻過濾器。
5、長時間存放未使用時,請每三個(ge)月(yue)通電一次不少(shao)于4小時。
6、長(chang)期保(bao)存(cun)應避開直射(she)光線,宜存(cun)放(fang)在環境溫度-25°C~55°C.
7、如儀表無顯(xian)示(shi),應(ying)先檢查輔助電(dian)(dian)源,電(dian)(dian)壓是否(fou)在范圍內。
8、如(ru)顯示不(bu)正常,檢查輸(shu)入信號是(shi)否正常及信號接(jie)線端是(shi)否擰緊。
9、除非PT有足(zu)夠功(gong)率(lv),否(fou)則不能使用PT信(xin)號同時作(zuo)為輔助電源(yuan),以保(bao)證儀表正常工作(zuo)。
10、CT回路中(zhong)的電流(liu)接線端子(zi)螺(luo)絲務必(bi)擰(ning)緊,保證進/出線接觸可靠,以免產生故障(zhang)。
11、若要(yao)校驗(yan)(yan)儀表(biao),校驗(yan)(yan)儀器應優于(yu)0.1級,才能保(bao)證校驗(yan)(yan)精(jing)度。