1、試驗壓器的工作原理(li)圖見圖3、圖4

圖4中高(gao)壓套管中裝有(you)高(gao)壓硅(gui)堆，串(chuan)接在(zai)高(gao)壓回(hui)路中作(zuo)半波整流(liu)，以獲得(de)直流(liu)高(gao)電壓。當(dang)用一短路桿(gan)將高(gao)壓硅(gui)堆短接時，可獲得(de)工頻高(gao)電壓，作(zuo)為(wei)交(jiao)流(liu)輸出(chu)狀態；取消短路桿(gan)時，作(zuo)為(wei)直流(liu)輸出(chu)狀態。

2、三臺試(shi)(shi)(shi)驗(yan)(yan)變(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)串(chuan)級(ji)(ji)(ji)獲得更高電(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)的(de)(de)結線原理見圖5。串(chuan)級(ji)(ji)(ji)高壓(ya)(ya)(ya)(ya)(ya)試(shi)(shi)(shi)驗(yan)(yan)變(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)有很大(da)的(de)(de)優越性，因為(wei)(wei)(wei)整(zheng)個試(shi)(shi)(shi)驗(yan)(yan)裝(zhuang)置(zhi)由(you)幾(ji)臺單(dan)臺試(shi)(shi)(shi)驗(yan)(yan)變(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)組成，單(dan)臺試(shi)(shi)(shi)驗(yan)(yan)變(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)容量小(xiao)、電(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)低(di)、重量輕(qing)，便于運輸(shu)和安(an)裝(zhuang)。它既(ji)然可(ke)串(chuan)接(jie)成高出幾(ji)倍的(de)(de)單(dan)臺試(shi)(shi)(shi)驗(yan)(yan)變(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)輸(shu)出電(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)組合使用，又(you)可(ke)分(fen)開成幾(ji)套(tao)單(dan)臺試(shi)(shi)(shi)驗(yan)(yan)變(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)單(dan)獨使用。整(zheng)套(tao)裝(zhuang)置(zhi)投資小(xiao)，經濟實惠。圖5中(zhong)，在第(di)(di)(di)一級(ji)(ji)(ji)和第(di)(di)(di)二(er)(er)級(ji)(ji)(ji)的(de)(de)每個單(dan)元(yuan)試(shi)(shi)(shi)驗(yan)(yan)變(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)中(zhong)都(dou)有一個勵磁繞(rao)組A1、C1和A2、C2。在串(chuan)級(ji)(ji)(ji)試(shi)(shi)(shi)驗(yan)(yan)變(bian)(bian)(bian)(bian)(bian)器(qi)(qi)(qi)(qi)(qi)基(ji)本原理圖中(zhong)，低(di)壓(ya)(ya)(ya)(ya)(ya)電(dian)(dian)源加在試(shi)(shi)(shi)驗(yan)(yan)變(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)I的(de)(de)初級(ji)(ji)(ji)繞(rao)組a1x1上，單(dan)臺試(shi)(shi)(shi)驗(yan)(yan)變(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)Ⅰ、Ⅱ、Ⅲ的(de)(de)輸(shu)出電(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)都(dou)是V。勵磁繞(rao)組A1、C1給第(di)(di)(di)二(er)(er)級(ji)(ji)(ji)試(shi)(shi)(shi)驗(yan)(yan)變(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)Ⅱ的(de)(de)初級(ji)(ji)(ji)繞(rao)組供(gong)電(dian)(dian)；第(di)(di)(di)二(er)(er)級(ji)(ji)(ji)試(shi)(shi)(shi)驗(yan)(yan)變(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)Ⅱ的(de)(de)勵磁繞(rao)組A2、C2給第(di)(di)(di)三級(ji)(ji)(ji)試(shi)(shi)(shi)驗(yan)(yan)變(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)Ⅲ的(de)(de)初級(ji)(ji)(ji)繞(rao)組供(gong)電(dian)(dian)。第(di)(di)(di)二(er)(er)級(ji)(ji)(ji)試(shi)(shi)(shi)驗(yan)(yan)變(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)Ⅱ和第(di)(di)(di)三級(ji)(ji)(ji)試(shi)(shi)(shi)驗(yan)(yan)變(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)Ⅲ的(de)(de)箱體分(fen)別(bie)處在對(dui)地為(wei)(wei)(wei)1V和2V的(de)(de)高電(dian)(dian)位(wei)上，所以箱體對(dui)地是絕緣的(de)(de)，試(shi)(shi)(shi)驗(yan)(yan)變(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)I的(de)(de)箱體是接(jie)地的(de)(de)。這樣第(di)(di)(di)一級(ji)(ji)(ji)、第(di)(di)(di)二(er)(er)級(ji)(ji)(ji)、第(di)(di)(di)三試(shi)(shi)(shi)驗(yan)(yan)變(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)對(dui)地的(de)(de)額(e)定輸(shu)出電(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)分(fen)別(bie)為(wei)(wei)(wei)1V、2V、3V；其額(e)定容量分(fen)別(bie)為(wei)(wei)(wei)3P、2P、1P。

YDJ系列輕型高壓(ya)試驗(yan)變壓(ya)器(qi)高壓(ya)套(tao)管中的(de)高壓(ya)硅堆未畫出，其原理與上圖相(xiang)同(tong)。