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地址:上海市寶山區水產西路680弄4號樓508
產品名稱:ML12B雙鉗(qian)相(xiang)位伏安表(biao)
產品型號:
產品報價:6546
產品特點:ML12B雙鉗相位(wei)(wei)伏安(an)表是專為現場測(ce)量電(dian)(dian)壓、電(dian)(dian)流及相位(wei)(wei)而設計的(de)(de)一種高精度(du)、低(di)價位(wei)(wei)、手持式、雙通道輸入測(ce)量儀表。用該表可以很方便(bian)地在現場測(ce)量U-U、I-I及U-I之間(jian)的(de)(de)相位(wei)(wei),判別(bie)感(gan)性、容性電(dian)(dian)路及三相電(dian)(dian)壓的(de)(de)相序,檢測(ce)變壓器的(de)(de)接線組別(bie),測(ce)試(shi)二次回(hui)路和母差(cha)保護系(xi)統,讀出差(cha)動保護各組CT之間(jian)的(de)(de)相位(wei)(wei)關系(xi),檢查電(dian)(dian)度(du)表的(de)(de)接線正確(que)與否等。
ML12B雙鉗相位伏安表的詳細資料:
ML12B雙鉗相位伏安表產品簡介
數字雙鉗相位伏安表是(shi)專為現場測(ce)量電(dian)壓(ya)、電(dian)流(liu)及相位(wei)(wei)(wei)而設計的一種高精度、低價位(wei)(wei)(wei)、手持式(shi)、雙通道(dao)輸入測(ce)量儀表。用(yong)該表可以(yi)很方便(bian)地在現場測(ce)量U-U、I-I及U-I之(zhi)(zhi)間(jian)的相位(wei)(wei)(wei),判(pan)別(bie)感(gan)性(xing)、容性(xing)電(dian)路(lu)(lu)(lu)(lu)及三相電(dian)壓(ya)的相序,檢測(ce)變壓(ya)器的接(jie)線組別(bie),測(ce)試二次回(hui)路(lu)(lu)(lu)(lu)和母差(cha)保護(hu)系(xi)統,讀出差(cha)動保護(hu)各組CT之(zhi)(zhi)間(jian)的相位(wei)(wei)(wei)關系(xi),檢查電(dian)度表的接(jie)線正(zheng)確與否(fou)等。采用(yong)鉗形電(dian)流(liu)互感(gan)器轉換(huan)方式(shi)輸入被測(ce)電(dian)流(liu),因(yin)而測(ce)量時(shi)無需斷開被測(ce)線路(lu)(lu)(lu)(lu)。測(ce)量U1-U2之(zhi)(zhi)間(jian)相位(wei)(wei)(wei)時(shi),兩輸入回(hui)路(lu)(lu)(lu)(lu)*絕緣隔離,因(yin)此(ci)*避免了可能出現的誤接(jie)線造成的被測(ce)線路(lu)(lu)(lu)(lu)短路(lu)(lu)(lu)(lu)、以(yi)致(zhi)燒毀測(ce)量儀表。顯示(shi)器采用(yong)了高反差(cha)液晶顯示(shi)屏,字高達25mm,屏幕角度可自由轉換(huan)約70°,以(yi)獲(huo)得*視覺效果(guo)。
儀(yi)表(biao)外殼采用工程絕緣(yuan)材料,另配橡皮防振保護套(tao),安(an)全、可靠。
產品(pin)別稱
數(shu)(shu)(shu)字(zi)(zi)(zi)雙(shuang)(shuang)(shuang)鉗(qian)(qian)(qian)(qian)(qian)相(xiang)(xiang)(xiang)(xiang)(xiang)位(wei)(wei)(wei)(wei)(wei)(wei)伏(fu)安(an)表(biao)(biao)(biao)(biao) 相(xiang)(xiang)(xiang)(xiang)(xiang)位(wei)(wei)(wei)(wei)(wei)(wei)表(biao)(biao)(biao)(biao)、雙(shuang)(shuang)(shuang)鉗(qian)(qian)(qian)(qian)(qian)相(xiang)(xiang)(xiang)(xiang)(xiang)位(wei)(wei)(wei)(wei)(wei)(wei)表(biao)(biao)(biao)(biao)、雙(shuang)(shuang)(shuang)鉗(qian)(qian)(qian)(qian)(qian)相(xiang)(xiang)(xiang)(xiang)(xiang)位(wei)(wei)(wei)(wei)(wei)(wei)伏(fu)安(an)表(biao)(biao)(biao)(biao)、鉗(qian)(qian)(qian)(qian)(qian)形(xing)相(xiang)(xiang)(xiang)(xiang)(xiang)位(wei)(wei)(wei)(wei)(wei)(wei)表(biao)(biao)(biao)(biao)、鉗(qian)(qian)(qian)(qian)(qian)形(xing)相(xiang)(xiang)(xiang)(xiang)(xiang)位(wei)(wei)(wei)(wei)(wei)(wei)伏(fu)安(an)表(biao)(biao)(biao)(biao)、數(shu)(shu)(shu)字(zi)(zi)(zi)雙(shuang)(shuang)(shuang)鉗(qian)(qian)(qian)(qian)(qian)相(xiang)(xiang)(xiang)(xiang)(xiang)位(wei)(wei)(wei)(wei)(wei)(wei)表(biao)(biao)(biao)(biao)、數(shu)(shu)(shu)字(zi)(zi)(zi)式(shi)(shi)雙(shuang)(shuang)(shuang)鉗(qian)(qian)(qian)(qian)(qian)相(xiang)(xiang)(xiang)(xiang)(xiang)位(wei)(wei)(wei)(wei)(wei)(wei)表(biao)(biao)(biao)(biao)、低壓(ya)伏(fu)安(an)相(xiang)(xiang)(xiang)(xiang)(xiang)位(wei)(wei)(wei)(wei)(wei)(wei)檢測表(biao)(biao)(biao)(biao)、手持式(shi)(shi)數(shu)(shu)(shu)字(zi)(zi)(zi)雙(shuang)(shuang)(shuang)鉗(qian)(qian)(qian)(qian)(qian)相(xiang)(xiang)(xiang)(xiang)(xiang)位(wei)(wei)(wei)(wei)(wei)(wei)伏(fu)安(an)表(biao)(biao)(biao)(biao)、雙(shuang)(shuang)(shuang)鉗(qian)(qian)(qian)(qian)(qian)式(shi)(shi)數(shu)(shu)(shu)字(zi)(zi)(zi)相(xiang)(xiang)(xiang)(xiang)(xiang)位(wei)(wei)(wei)(wei)(wei)(wei)表(biao)(biao)(biao)(biao)、雙(shuang)(shuang)(shuang)鉗(qian)(qian)(qian)(qian)(qian)數(shu)(shu)(shu)字(zi)(zi)(zi)式(shi)(shi)相(xiang)(xiang)(xiang)(xiang)(xiang)位(wei)(wei)(wei)(wei)(wei)(wei)表(biao)(biao)(biao)(biao)、雙(shuang)(shuang)(shuang)鉗(qian)(qian)(qian)(qian)(qian)式(shi)(shi)伏(fu)安(an)相(xiang)(xiang)(xiang)(xiang)(xiang)位(wei)(wei)(wei)(wei)(wei)(wei)表(biao)(biao)(biao)(biao)、雙(shuang)(shuang)(shuang)鉗(qian)(qian)(qian)(qian)(qian)伏(fu)安(an)相(xiang)(xiang)(xiang)(xiang)(xiang)位(wei)(wei)(wei)(wei)(wei)(wei)表(biao)(biao)(biao)(biao)、數(shu)(shu)(shu)顯雙(shuang)(shuang)(shuang)鉗(qian)(qian)(qian)(qian)(qian)相(xiang)(xiang)(xiang)(xiang)(xiang)位(wei)(wei)(wei)(wei)(wei)(wei)表(biao)(biao)(biao)(biao)<
ML12B雙鉗相位伏安表產品參數 一(yi)、 基本(ben)誤差(cha)
1.1 參比工作條件
(a)環境溫度:(23±5)℃
(b)環境濕(shi)度(du):(45~75)% RH
(c)被測(ce)信號(hao)波形:正(zheng)弦波、β=0.02
(d)被測(ce)信號(hao)頻(pin)率:(50±0.2)Hz
(e)被測載流導線在鉗口中(zhong)的位置:任意
(f)測量(liang)相位時被測信號幅值范圍:100~220V、0.5A~1.5
(g)外(wai)參(can)比頻率電磁(ci)場干擾:應(ying)避免
1.2 基本誤差極限
1.2.1 交流電壓(見表1)
表(biao)1:交流電壓測(ce)量誤差 | ||
量限 | 分 辨 率 | 基本誤差極限 |
20V | 0.01V | ±(1.2%RD+2) |
200V | 0.1V | ±(1.0%RD+2) |
500V | 1V | ±(1.2%RD+2) |
1.2.2 交流(liu)電流(liu)(見(jian)表2)
表(biao)2:交流電流測(ce)量誤差 | ||
量限 | 分 辨 率 | 基本誤差極限 |
200mA | 0.1mA | ±(1.0%RD+2) |
2A | 1mA | |
10A | 10mA |
1.2.3 相位
U-U、U-I、I-I(見表3)
表3:工頻相位測量(liang)誤差 | ||
范圍 | 分辨率 | 基本誤差極限 |
0~360° | 1° | ±3° |
測U1-U2相位時電壓(ya)輸(shu)入(ru)回路阻抗:40KΩ
二(er)、 工作(zuo)誤差
2.1 額定(ding)工(gong)作條件(jian)
(a)環境溫度:(0~40)℃
(b)環境濕度:(20~80)% RH
(c)被測信(xin)號(hao)波形(xing):正(zheng)弦波、β=0.05
(d)被(bei)測信號頻率:(50±0.5)Hz
(e)被測(ce)載流導(dao)線在鉗口(kou)中的(de)位置(zhi):任意(yi)
(f)測量相(xiang)位時(shi)被測信號幅值(zhi)范圍
測(ce)U1-U2相位時:30V~500V
測I1-I2 相位時:10mA~10.00A
測U1-I2 或 I1-U2 相位時:10V~500V、10mA~10.00A
(g)外參比頻率電磁場干(gan)擾:應避免
2.2 額(e)定(ding)工作(zuo)誤差極限
在(zai) 1.1 所述額(e)定工作條件下(xia),各被測量的(de)額(e)定工作誤(wu)差極(ji)限不超過相應基(ji)本誤(wu)差極(ji)限的(de)兩倍。
產(chan)品特征
1、結(jie)構精(jing)巧,使用(yong)方便(bian)
手持式(shi)結構;
在10mA-10A電流范(fan)圍內(nei),3V-500V電壓范(fan)圍內(nei)測量相位時不用斷開電路和更換量限;
開(kai)關功能及布局合理(li),轉動開(kai)關即(ji)可讀出(chu)被測(ce)電壓(ya)、電流及其相位。
2、分辨(bian)率(lv)高
電(dian)流分(fen)辯率達(da)0.1mA;電(dian)壓分(fen)辯率0.1V。
3、低(di)功耗
該相位表微(wei)功(gong)耗設計,且具有電池電壓檢測功(gong)能(neng)。
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