高壓(ya)計量(liang)箱(xiang)(xiang)用于(yu)高壓(ya)電能(neng)(neng)計量(liang)，特(te)別適用于(yu)中(zhong)、小(xiao)型變壓(ya)器用戶，可以完好(hao)準確的(de)計量(liang)有功(gong)電能(neng)(neng)和無功(gong)電能(neng)(neng)。而(er)且高壓(ya)計量(liang)箱(xiang)(xiang)設計巧妙合理，結(jie)構緊湊，美(mei)觀大方，各部(bu)封鎖嚴密，防竊電能(neng)(neng)力強(qiang)，配置外表(biao)(biao)箱(xiang)(xiang)組(zu)成一個完好(hao)的(de)計量(liang)設備，也可以分開單獨裝置外表(biao)(biao)箱(xiang)(xiang)，表(biao)(biao)箱(xiang)(xiang)內裝有兩(liang)只高精度電度表(biao)(biao)，箱(xiang)(xiang)門上設有兩(liang)個觀察(cha)孔，便于(yu)直(zhi)觀抄表(biao)(biao)。 10KV高壓計量箱的(de)主要特點：
兩元(yuan)件中(zhong)A、C兩相裝有(you)電(dian)(dian)(dian)壓(ya)(ya)、電(dian)(dian)(dian)流互感(gan)(gan)器(qi)，電(dian)(dian)(dian)壓(ya)(ya)互感(gan)(gan)器(qi)為(wei)(wei)V/V接線(xian)(xian)。二次(ci)電(dian)(dian)(dian)壓(ya)(ya)為(wei)(wei)100V。配用三(san)(san)(san)相三(san)(san)(san)線(xian)(xian)電(dian)(dian)(dian)能(neng)(neng)表(biao)。三(san)(san)(san)元(yuan)件中(zhong)A、B、C三(san)(san)(san)相均有(you)電(dian)(dian)(dian)壓(ya)(ya)、電(dian)(dian)(dian)流互感(gan)(gan)器(qi)，電(dian)(dian)(dian)壓(ya)(ya)互感(gan)(gan)器(qi)為(wei)(wei)Y/Y接線(xian)(xian)。接線(xian)(xian)二次(ci)相電(dian)(dian)(dian)壓(ya)(ya)為(wei)(wei)400/√3可選用380V三(san)(san)(san)相四(si)線(xian)(xian)電(dian)(dian)(dian)能(neng)(neng)表(biao)。
也(ye)可選(xuan)用三塊220V民用電(dian)能(neng)表(biao)分別計費，再累加電(dian)量。另一種二次電(dian)壓為100/√3，可選(xuan)用100V的三相四線電(dian)能(neng)表(biao)。由組合互(hu)感(gan)器(qi)和(he)計量儀表(biao)箱組成，組合互(hu)感(gan)器(qi)由兩臺(tai)(tai)電(dian)壓互(hu)感(gan)器(qi)和(he)兩臺(tai)(tai)電(dian)流互(hu)感(gan)器(qi)組裝(zhuang)在一起而(er)成。
計(ji)量儀表(biao)箱內配有D86系列三相電度(du)表(biao)和保險裝置，單向計(ji)量時配一(yi)塊(kuai)(kuai)有功電度(du)表(biao)和一(yi)塊(kuai)(kuai)無(wu)功電度(du)表(biao)，雙向計(ji)量時配二塊(kuai)(kuai)有功電度(du)表(biao)和兩塊(kuai)(kuai)無(wu)功電度(du)表(biao)。復(fu)變(bian)(bian)比(bi)計(ji)量箱采用(yong)二次更(geng)換變(bian)(bian)比(bi)復(fu)式，便于更(geng)換變(bian)(bian)比(bi)時，更(geng)間接的工作。
復變比計量原理，采用V／V-12接(jie)(jie)線方式，電(dian)(dian)壓回(hui)路中(zhong)二(er)次b點(dian)接(jie)(jie)地，電(dian)(dian)流(liu)回(hui)路中(zhong)A.C相電(dian)(dian)流(liu)二(er)次回(hui)路尾(wei)端(duan)接(jie)(jie)地。在復變比計量箱內部(bu)，電(dian)(dian)流(liu)二(er)次回(hui)路尾(wei)端(duan)，電(dian)(dian)壓二(er)次回(hui)路尾(wei)端(duan)b點(dian)，已連接(jie)(jie)為一(yi)點(dian)，但并未接(jie)(jie)地，實(shi)際接(jie)(jie)電(dian)(dian)表(biao)測量時(shi)，該點(dian)（b）應可靠接(jie)(jie)地。
干式高壓計量(liang)箱體(ti)積小(xiao)，重(zhong)量(liang)輕，燒毀后無法維修(xiu)(xiu)，屬一次性產品(pin)，也可以說是無售(shou)后，使用年(nian)限(xian)普遍(bian)不如油(you)式高壓計量(liang)箱長(chang)。油(you)式高壓計量(liang)箱體(ti)積大，重(zhong)量(liang)重(zhong)，但可維修(xiu)(xiu)，使用年(nian)限(xian)普遍(bian)較長(chang)。變(bian)壓器(qi)利用電磁(ci)感(gan)應的(de)原理來改變(bian)交(jiao)流電壓的(de)裝置，主要構件是初(chu)級線圈(quan)、次級線圈(quan)和(he)鐵心(xin)（磁(ci)芯）。
在(zai)電(dian)器(qi)(qi)設備和(he)無線電(dian)路中，常用(yong)作升降電(dian)壓(ya)(ya)、匹配阻抗(kang)，安全(quan)隔(ge)離等(deng)。主要功能有：電(dian)壓(ya)(ya)變(bian)(bian)(bian)(bian)換(huan)、電(dian)流(liu)變(bian)(bian)(bian)(bian)換(huan)、阻抗(kang)變(bian)(bian)(bian)(bian)換(huan)、隔(ge)離、穩壓(ya)(ya)（磁飽和(he)變(bian)(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)）等(deng)。按用(yong)途可以分為：配電(dian)變(bian)(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)、電(dian)力變(bian)(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)、全(quan)密封(feng)變(bian)(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)、組(zu)合式變(bian)(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)、干式變(bian)(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)、油浸式變(bian)(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)、單(dan)相變(bian)(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)、電(dian)爐變(bian)(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)、整(zheng)流(liu)變(bian)(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)等(deng)。
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