電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)是(shi)(shi)根(gen)據(ju)通(tong)(tong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)導(dao)體(ti)在(zai)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)中受磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)力(li)的(de)(de)(de)(de)(de)(de)(de)作用而(er)制成(cheng)(cheng)的(de)(de)(de)(de)(de)(de)(de)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)內(nei)部(bu)有(you)(you)(you)一(yi)永磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)體(ti)，在(zai)極間(jian)產生磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)，在(zai)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)中有(you)(you)(you)一(yi)個(ge)線圈(quan)，線圈(quan)兩(liang)端(duan)(duan)各有(you)(you)(you)一(yi)個(ge)游絲彈(dan)簧(huang)，彈(dan)簧(huang)各連接(jie)(jie)(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)的(de)(de)(de)(de)(de)(de)(de)一(yi)個(ge)接(jie)(jie)(jie)線柱，在(zai)彈(dan)簧(huang)與線圈(quan)間(jian)由(you)一(yi)個(ge)轉(zhuan)(zhuan)軸(zhou)連接(jie)(jie)(jie)，在(zai)轉(zhuan)(zhuan)軸(zhou)相對(dui)(dui)(dui)于電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)的(de)(de)(de)(de)(de)(de)(de)前端(duan)(duan)，有(you)(you)(you)一(yi)個(ge)指(zhi)針。當有(you)(you)(you)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)通(tong)(tong)過時(shi)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)沿(yan)彈(dan)簧(huang)、轉(zhuan)(zhuan)軸(zhou)通(tong)(tong)過磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)切磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)感線，所以受磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)力(li)的(de)(de)(de)(de)(de)(de)(de)作用，使(shi)線圈(quan)發生偏轉(zhuan)(zhuan)，帶(dai)動(dong)轉(zhuan)(zhuan)軸(zhou)、指(zhi)針偏轉(zhuan)(zhuan)。由(you)于磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)力(li)的(de)(de)(de)(de)(de)(de)(de)大(da)(da)(da)(da)小(xiao)隨電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)增大(da)(da)(da)(da)而(er)增大(da)(da)(da)(da)，所以就可(ke)(ke)以通(tong)(tong)過指(zhi)針的(de)(de)(de)(de)(de)(de)(de)偏轉(zhuan)(zhuan)程度來(lai)觀察電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)的(de)(de)(de)(de)(de)(de)(de)大(da)(da)(da)(da)小(xiao)。一(yi)般可(ke)(ke)直接(jie)(jie)(jie)測(ce)量(liang)(liang)微安(an)(an)(an)或(huo)(huo)毫安(an)(an)(an)數(shu)量(liang)(liang)級的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，為(wei)測(ce)更(geng)大(da)(da)(da)(da)的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)應有(you)(you)(you)并聯電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)器(qi)(qi)(qi)（又(you)稱(cheng)分流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)）。主要采(cai)(cai)用磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系(xi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)的(de)(de)(de)(de)(de)(de)(de)測(ce)量(liang)(liang)機(ji)(ji)(ji)構(gou)(gou)。分流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)值要使(shi)滿量(liang)(liang)程電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)通(tong)(tong)過時(shi)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)滿偏轉(zhuan)(zhuan)，即(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)指(zhi)示達到最大(da)(da)(da)(da)。對(dui)(dui)(dui)于幾安(an)(an)(an)的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，可(ke)(ke)在(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)內(nei)設置分流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)。對(dui)(dui)(dui)于幾安(an)(an)(an)以上的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，則采(cai)(cai)用外(wai)附(fu)(fu)分流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)。大(da)(da)(da)(da)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)分流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)值很小(xiao)，為(wei)避免(mian)引線電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)和接(jie)(jie)(jie)觸(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)附(fu)(fu)加(jia)于分流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)而(er)引起誤(wu)差，分流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)要制成(cheng)(cheng)四端(duan)(duan)形式(shi)(shi)，即(ji)有(you)(you)(you)兩(liang)個(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)端(duan)(duan)，兩(liang)個(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)端(duan)(duan)。直流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)主要采(cai)(cai)用磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系(xi)或(huo)(huo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)系(xi)測(ce)量(liang)(liang)機(ji)(ji)(ji)構(gou)(gou)(見(jian)機(ji)(ji)(ji)械式(shi)(shi)指(zhi)示電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)測(ce)量(liang)(liang)機(ji)(ji)(ji)構(gou)(gou))，這些測(ce)量(liang)(liang)機(ji)(ji)(ji)構(gou)(gou)的(de)(de)(de)(de)(de)(de)(de)測(ce)量(liang)(liang)基本量(liang)(liang)是(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，可(ke)(ke)用來(lai)直接(jie)(jie)(jie)測(ce)小(xiao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)。對(dui)(dui)(dui)于大(da)(da)(da)(da)量(liang)(liang)值的(de)(de)(de)(de)(de)(de)(de)直流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系(xi)測(ce)量(liang)(liang)機(ji)(ji)(ji)構(gou)(gou)要使(shi)用分流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)，也(ye)就是(shi)(shi)并聯電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)。它的(de)(de)(de)(de)(de)(de)(de)作用是(shi)(shi)將(jiang)大(da)(da)(da)(da)部(bu)分被測(ce)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)分流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)。對(dui)(dui)(dui)約(yue)10A以下的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)多采(cai)(cai)用內(nei)附(fu)(fu)分流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi);對(dui)(dui)(dui)更(geng)大(da)(da)(da)(da)的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)值，則使(shi)用分流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)。它采(cai)(cai)取四端(duan)(duan)結構(gou)(gou)(圖(tu)a)，具有(you)(you)(you)兩(liang)個(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)端(duan)(duan)，兩(liang)個(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)位端(duan)(duan)。交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)可(ke)(ke)采(cai)(cai)用電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)系(xi)或(huo)(huo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)系(xi)測(ce)量(liang)(liang)機(ji)(ji)(ji)構(gou)(gou)。為(wei)使(shi)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系(xi)測(ce)量(liang)(liang)機(ji)(ji)(ji)構(gou)(gou)也(ye)能用于測(ce)量(liang)(liang)交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，可(ke)(ke)利(li)用整流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)或(huo)(huo)熱(re)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)偶等器(qi)(qi)(qi)件先將(jiang)交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)轉(zhuan)(zhuan)換為(wei)直流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu);由(you)它們組合(he)而(er)成(cheng)(cheng)的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)分別稱(cheng)為(wei)整流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(見(jian)整流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao))、熱(re)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)。為(wei)擴大(da)(da)(da)(da)量(liang)(liang)程以測(ce)量(liang)(liang)大(da)(da)(da)(da)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，整流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)也(ye)采(cai)(cai)用分流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi);電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)系(xi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)的(de)(de)(de)(de)(de)(de)(de)做法同(tong)前;電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)系(xi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)則是(shi)(shi)加(jia)粗線圈(quan)導(dao)線、減少匝數(shu)。對(dui)(dui)(dui)于更(geng)大(da)(da)(da)(da)的(de)(de)(de)(de)(de)(de)(de)測(ce)量(liang)(liang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)值需配(pei)合(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)互感器(qi)(qi)(qi)使(shi)用。通(tong)(tong)常可(ke)(ke)利(li)用分流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)和交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)數(shu)字(zi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)表(biao)構(gou)(gou)成(cheng)(cheng)交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)數(shu)字(zi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)。

互感器又稱為儀用變壓器，是電流互感器和電壓互感器的統稱。能將高電壓變成低電壓、大電流變成小電流，用于量測或保護系統。其功能主要是將高電壓或大電流按比例變換成標準低電壓（100V）或標準小電流（5A或1A，均指額定值），以便實現測量儀表、保護設備及自動控制設備的標準化、小型化。同時互感器還可用來隔開高電壓系統，以保證人身和設備的安全。
在供電用電的線路中，電流相差從幾安到幾萬安，電壓相差從幾伏到幾百萬伏。線路中電流電壓都比較高，如直接測量是非常危險的。為便于二次儀表測量需要轉換為比較統一的電流電壓，使用互感器起到變流變壓和電氣隔離的作用。
 顯示儀表大部分是指針式的電流電壓表，所以電流互感器的二次電流大多數是安培級的（如5等）。隨著時代發展，電量測量大多已經達到數字化，而計算機的采樣的信號一般為毫安級（0-5V、4-20mA等）。微型電流互感器二次電流為毫安級，主要起大互感器與采樣之間的橋梁作用。微型電流互感器稱之為“儀用電流互感器”。（“儀用電流互感器”有一層含義是在實驗室使用的多電流比精密電流互感器，一般用于擴大儀表量程。）
電流(liu)互感器原理(li)線路圖微(wei)型電流(liu)互感器與變(bian)(bian)(bian)壓(ya)器類似也是(shi)(shi)根據電磁感應原理(li)工作，變(bian)(bian)(bian)壓(ya)器變(bian)(bian)(bian)換的(de)是(shi)(shi)電壓(ya)而(er)微(wei)型電流(liu)互感器變(bian)(bian)(bian)換的(de)是(shi)(shi)電流(liu)罷(ba)了。繞(rao)(rao)組(zu)(zu)N1接(jie)被(bei)測電流(liu)，稱(cheng)為一次繞(rao)(rao)組(zu)(zu)（或(huo)原邊繞(rao)(rao)組(zu)(zu)、初級繞(rao)(rao)組(zu)(zu)）；繞(rao)(rao)組(zu)(zu)N2接(jie)測量儀(yi)表，稱(cheng)為二次繞(rao)(rao)組(zu)(zu)（或(huo)副邊繞(rao)(rao)組(zu)(zu)、次級繞(rao)(rao)組(zu)(zu)）。

WEIGEL    傳感器    PQ96K 60-0-60mv
WEIGEL    分流器    150A/60MV
WEIGEL    電壓轉換器    AU2.0  0-1A
WEIGEL    備件    Type: VQ72K 0-750V Production ID: 1TNS08030129R1
WEIGEL    電流表    AMPQ72KDZS010 4-20mA Skala: 0-400A
WEIGEL    電流表    EQ48K 15/5A
WEIGEL    備件    EQ96K 0-1A =》0-1600A
WEIGEL    分流器    SHUNT 60MV 200A， 137-9059
WEIGEL    變送器    EAZ AIU2.0 輸入1A 輸出4-20mA
WEIGEL    備件    BIEQ 72K 15min 3000/1A
WEIGEL    壓力變送器    TYPE:V1U 2.2 SN:26057009
WEIGEL    備件    DAS10-40P1R NR：943622-003
WEIGEL    備件    VUE2.2 0-500V 4-20MA  220V
WEIGEL    電壓轉換器    AU2.0  0-1A
WEIGEL    傳感器    PQ96K 60-0-60mv
WEIGEL    電流表    EQ96K  100/5A
WEIGEL    電流表    EQ48K 15/5A
WEIGEL    備件    CAM39053 AB910097493  411.134.9291
WEIGEL    儀表    PQ48K 0-40microA
WEIGEL    備件    VUE2.2 0-500V 4-20MA  220V
WEIGEL    壓力表    4-20mA(PRE[P.)
WEIGEL    電流表    AMPQ72KDZS010
WEIGEL    電流表    PQ96K 10V 0-8000
WEIGEL    表    SUS-01 G/R 220VDC
WEIGEL    電流表    Q96K5A(10)400/5A
WEIGEL    備件    LSP96K
WEIGEL    電流表    EQ144K/1A/40A
WEIGEL    備件    DPA 10-31E10G
WEIGEL    電流變送器    電流變送器/A1U2.0
WEIGEL    油缸行程顯示器    DAS10-40PIR
WEIGEL    舵機計時器    TYPE:BG40.×7/3121×0 SERIAL NO.:10T50 0508
WEIGEL    備件    WQ96/2S
WEIGEL    數字顯示表    DGA100-40A10GD-2 SN4113-001
WEIGEL    電壓表附件    EQ96K  100/120V 0-20/24KV
WEIGEL    備件    WQ96/2S
WEIGEL    電壓變送器    電壓變送器/V1U2.0
WEIGEL    變送器    PTU2.OS 17 26 41 H3
WEIGEL    電流變送器    電流變送器/A1U2.0
WEIGEL    電流表    EQ48 10A
WEIGEL    分流器    shunt 8kA/60mV
WEIGEL    恒張力指示INDICATOR    PQ42K Beleuchtung:24V、12V、6V
WEIGEL    電流表    EQ96-X 500/1A
WEIGEL    電流表    EQ  72K
WEIGEL    壓力表    EQ96K500V
WEIGEL    備件    DPA 10-31E10G
WEIGEL    備件    652.02.121600 SUS-01-Q R/G 220V DC
WEIGEL    備件    EQ144K/100V/750V
WEIGEL    備件    DA13-NA50/I12R-4
WEIGEL    數字顯示(shi)表    DGA100-40A10GD-2 SN4113-001

WEIGEL 電流表 EQ144K/1A/40A翊霈代理供應

WEIGEL 電流表 EQ144K/1A/40A翊霈代理供應