高壓驗電器驗電電壓校驗裝置

　

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一、LYSLJ-200高壓驗電器驗電電壓校驗裝置概述

是按照國(guo)(guo)家電力公司關于(yu)頒(ban)發(fa)《電力安全工器(qi)具(ju)預(yu)防性(xing)試(shi)驗規(gui)程》(試(shi)行)的通知(國(guo)(guo)電發(fa)[2002]777號)的要(yao)(yao)求的基礎上研(yan)制而成，本產品各項指標(biao)(biao)(biao)均符合國(guo)(guo)標(biao)(biao)(biao)的要(yao)(yao)求。可以按《電力安全工器(qi)具(ju)預(yu)防性(xing)試(shi)驗規(gui)程》要(yao)(yao)求對驗電器(qi)功(gong)能(neng)檢(jian)測(ce)，產品適用于(yu)所有與(yu)電力相關行業10KV～500KV驗電器(qi)檢(jian)測(ce)，功(gong)能(neng)檢(jian)測(ce)具(ju)體(ti)要(yao)(yao)求參照DL740-2014標(biao)(biao)(biao)準。

二、LYSLJ-200高壓驗電器驗電電壓校驗裝置?主要技術指標

環境(jing)溫(wen)度：-25℃-55℃

濕    度： 20%~75%RH

連(lian)續運行時(shi)間：可連(lian)續

支架規格：

10KV-35KV   ：1.5m*0.6m*2m    重(zhong)量(liang) ： 23kg         

66KV-500KV  ：2.4m*0.7m*4m    重量 ： 32kg

三、產品結構

接線端子  ② 均壓(ya)球(qiu)  ③ 均壓(ya)環  ④ 驗電(dian)器  ⑤ 固定器  ⑥ 絕緣(yuan)管  ⑦ 平車 ⑧ 帶導軌平車

四、試驗裝置的闡述

根據DL740-2014標準，10KV~35KV，采(cai)用(yong)的均(jun)壓環(huan)(huan)直(zhi)徑為(wei)550mm，均(jun)勻(yun)環(huan)(huan)圓(yuan)心(xin)到地距離不(bu)低(di)于1.5m，均(jun)壓球直(zhi)徑為(wei)60mm。而66KV~330KV采(cai)用(yong)的均(jun)壓環(huan)(huan)直(zhi)徑為(wei)1050mm，均(jun)勻(yun)環(huan)(huan)圓(yuan)心(xin)到地距離不(bu)低(di)于2.5m，均(jun)壓球直(zhi)徑為(wei)100mm。固(gu)本套(tao)設備分為(wei)2個裝(zhuang)置。

做(zuo)10KV~35KV驗電器試(shi)驗時采用(yong)均壓(ya)環(huan)直徑為550mm的(de)裝(zhuang)置(zhi)，做(zuo)35KV~500KV驗電器試(shi)驗采用(yong)均壓(ya)環(huan)直徑為1050mm的(de)裝(zhuang)置(zhi)。

驗(yan)(yan)電(dian)器分(fen)帶(dai)接觸電(dian)極(ji)延長(chang)，和(he)不帶(dai)接觸電(dian)極(ji)延長(chang)2種，兩種驗(yan)(yan)電(dian)器的試驗(yan)(yan)方(fang)法(fa)也不相同(tong)。

驗電(dian)器(qi)(qi)功(gong)能檢(jian)(jian)(jian)測分驗電(dian)器(qi)(qi)啟動檢(jian)(jian)(jian)測、同(tong)向干(gan)擾檢(jian)(jian)(jian)測、反向干(gan)擾檢(jian)(jian)(jian)測。啟動電(dian)壓報警在(zai)標稱值的15%~40%為(wei)合(he)格，否則驗電(dian)器(qi)(qi)不合(he)格。

表(biao)一、帶接觸電極延(yan)長段的(de)驗電器

KV	電極間隔距(ju)離（a1）mm	H1mm	環直徑mm	球直徑mm
10     35	100    430	＞1500	550	60
66 ­—500	650    850	＞2500	1050	100

表二、不帶接觸電(dian)極延長段的驗電(dian)器

KV	電(dian)極間隔距離（a2）mm	H1mm	環直(zhi)徑mm	球直徑mm
10     35	300	＞1500	550	60
66 —500	1000	＞2500	1050	100

以上為DL740-2014標準中對2種驗電器對應試驗裝(zhuang)置的要求。

五 、驗(yan)電器功(gong)能檢測的試驗(yan)方法

1、驗(yan)電(dian)器啟(qi)動(dong)電(dian)壓(ya)的試驗(yan)

器動電壓的測量接線

如上圖(tu)所(suo)示為2中驗電器啟動電壓的接線圖(tu)，左圖(tu)為帶(dai)(dai)接觸(chu)電極延長的驗電器，右圖(tu)為不帶(dai)(dai)接觸(chu)電極延長的驗電器。

這里以35KV帶接觸(chu)電(dian)(dian)(dian)極延長的(de)驗(yan)(yan)(yan)(yan)電(dian)(dian)(dian)器(qi)(qi)為例(li)（注：做啟動(dong)(dong)電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)需配(pei)合升壓(ya)(ya)(ya)(ya)(ya)設(she)(she)備）：首(shou)先將帶導(dao)(dao)軌的(de)試驗(yan)(yan)(yan)(yan)平(ping)車(che)(che)(che)上(shang)(shang)中間(jian)平(ping)車(che)(che)(che)（安(an)裝有(you)(you)均(jun)(jun)(jun)壓(ya)(ya)(ya)(ya)(ya)環(huan)(huan)）移動(dong)(dong)標(biao)有(you)(you)a1430mm（紅色帶箭(jian)頭(tou)）位置(zhi)，平(ping)車(che)(che)(che)上(shang)(shang)的(de)標(biao)尺與平(ping)臺上(shang)(shang)的(de)標(biao)尺對齊(qi)。然(ran)后接好地線(xian)(xian)包(bao)括(kuo)2平(ping)車(che)(che)(che)底座、均(jun)(jun)(jun)壓(ya)(ya)(ya)(ya)(ya)環(huan)(huan)及升壓(ya)(ya)(ya)(ya)(ya)設(she)(she)備，將驗(yan)(yan)(yan)(yan)電(dian)(dian)(dian)器(qi)(qi)固定在小平(ping)車(che)(che)(che)上(shang)(shang)，同時(shi)將驗(yan)(yan)(yan)(yan)電(dian)(dian)(dian)器(qi)(qi)抽出，然(ran)后移動(dong)(dong)小平(ping)車(che)(che)(che)使得驗(yan)(yan)(yan)(yan)電(dian)(dian)(dian)器(qi)(qi)穿過均(jun)(jun)(jun)壓(ya)(ya)(ya)(ya)(ya)環(huan)(huan)，且(qie)驗(yan)(yan)(yan)(yan)電(dian)(dian)(dian)器(qi)(qi)的(de)金屬(shu)頭(tou)與均(jun)(jun)(jun)壓(ya)(ya)(ya)(ya)(ya)球(qiu)接觸(chu)保(bao)持即(ji)可，將升壓(ya)(ya)(ya)(ya)(ya)設(she)(she)備的(de)高壓(ya)(ya)(ya)(ya)(ya)導(dao)(dao)線(xian)(xian)接到(dao)均(jun)(jun)(jun)壓(ya)(ya)(ya)(ya)(ya)球(qiu)延長桿上(shang)(shang)，再接升壓(ya)(ya)(ya)(ya)(ya)設(she)(she)備的(de)其(qi)他導(dao)(dao)線(xian)(xian)，試驗(yan)(yan)(yan)(yan)人員(yuan)撤離(li)到(dao)安(an)全區后合上(shang)(shang)電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)，將升壓(ya)(ya)(ya)(ya)(ya)設(she)(she)備均(jun)(jun)(jun)勻加(jia)壓(ya)(ya)(ya)(ya)(ya)知道驗(yan)(yan)(yan)(yan)電(dian)(dian)(dian)器(qi)(qi)發出報(bao)警，馬上(shang)(shang)停止加(jia)壓(ya)(ya)(ya)(ya)(ya)，此時(shi)記錄下(xia)高壓(ya)(ya)(ya)(ya)(ya)電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)數值，且(qie)比對數值是否落(luo)在35KV的(de)15%~40%內（5.25kv~14kv），是表明(ming)驗(yan)(yan)(yan)(yan)電(dian)(dian)(dian)器(qi)(qi)啟動(dong)(dong)電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)報(bao)警合格，否則此驗(yan)(yan)(yan)(yan)電(dian)(dian)(dian)器(qi)(qi)不(bu)合格。其(qi)它規格的(de)驗(yan)(yan)(yan)(yan)電(dian)(dian)(dian)器(qi)(qi)啟動(dong)(dong)電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)也(ye)是如(ru)此，通過移動(dong)(dong)均(jun)(jun)(jun)壓(ya)(ya)(ya)(ya)(ya)環(huan)(huan)平(ping)車(che)(che)(che)到(dao)位置(zhi)即(ji)可。

同干(gan)擾的電(dian)場影響的接(jie)線

上(shang)圖為2種驗(yan)電(dian)(dian)器(qi)(qi)同(tong)向干擾的(de)電(dian)(dian)場(chang)影響試驗(yan)，試驗(yan)步驟(zou)與驗(yan)電(dian)(dian)器(qi)(qi)啟動電(dian)(dian)壓(ya)(ya)相似，首先移動導軌平車(che)到位置(zhi)（平車(che)上(shang)有標記），接好地(di)線，將均(jun)壓(ya)(ya)球及均(jun)壓(ya)(ya)環都接上(shang)高壓(ya)(ya)，然后(hou)在(zai)進行升(sheng)壓(ya)(ya)，將電(dian)(dian)壓(ya)(ya)升(sheng)到驗(yan)電(dian)(dian)器(qi)(qi)標稱值的(de)0.4倍(bei)或(huo)0.45倍(bei)的(de)電(dian)(dian)壓(ya)(ya)后(hou)停止(zhi)加壓(ya)(ya)，（比如10KV的(de)驗(yan)電(dian)(dian)器(qi)(qi)電(dian)(dian)壓(ya)(ya)升(sheng)到4000V），如此(ci)時(shi)驗(yan)電(dian)(dian)器(qi)(qi)有報警說明(ming)此(ci)驗(yan)電(dian)(dian)器(qi)(qi)合格，否則(ze)為不合格。

相干擾(rao)電場影響的接線

上(shang)圖為2種(zhong)驗(yan)(yan)電(dian)(dian)(dian)器(qi)反(fan)向(xiang)干擾(rao)的(de)電(dian)(dian)(dian)場影響試驗(yan)(yan)，試驗(yan)(yan)步驟與驗(yan)(yan)電(dian)(dian)(dian)器(qi)啟動(dong)電(dian)(dian)(dian)壓(ya)相(xiang)似，首先移(yi)動(dong)導軌平車(che)到(dao)位置（平車(che)上(shang)有標記），接好地(di)線，均(jun)壓(ya)球也接地(di)，而(er)高壓(ya)線接在均(jun)壓(ya)環上(shang)，然后在進行(xing)升(sheng)壓(ya)，將電(dian)(dian)(dian)壓(ya)升(sheng)到(dao)驗(yan)(yan)電(dian)(dian)(dian)器(qi)標稱(cheng)值(zhi)的(de)0.6倍電(dian)(dian)(dian)壓(ya)時停(ting)止加壓(ya)，（比如(ru)10KV的(de)驗(yan)(yan)電(dian)(dian)(dian)器(qi)電(dian)(dian)(dian)壓(ya)升(sheng)到(dao)6000V），如(ru)此(ci)時驗(yan)(yan)電(dian)(dian)(dian)器(qi)沒有報警說明此(ci)驗(yan)(yan)電(dian)(dian)(dian)器(qi)合格，否(fou)則為不(bu)合格。

 六、注意(yi)事項。

1、本設備必須配(pei)合升壓變壓器方可(ke)試驗。

2、裝置底座需接地

3、保持裝置干(gan)凈(jing)，定期護理在(zai)導軌上涂上潤滑油。

七、配件：

序號	名稱	數量
1	移動(dong)平(ping)車(che)	2
2	固定桿	3
3	鋁(lv)環	1
4	線(xian)	4
5	接觸電極(ji)	1
6	螺絲(si)	若干(gan)

高壓試驗電(dian)源成(cheng)套(tao)裝置（配(pei)套(tao)產品(pin)）

一、產品概述

LYYD高壓(ya)(ya)試(shi)(shi)驗(yan)成套裝置是在(zai)同類(lei)產(chan)品(pin)(pin)YDJ（G）型(xing)高壓(ya)(ya)試(shi)(shi)驗(yan)變壓(ya)(ya)器的(de)基礎上(shang)，按試(shi)(shi)驗(yan)變壓(ya)(ya)器國(guo)家(jia)標準ZBK41006—89要求，經(jing)改進后(hou)生產(chan)的(de)一(yi)種新(xin)型(xing)產(chan)品(pin)(pin)，本系列產(chan)品(pin)(pin)具有體積小、重量輕、結構緊湊(cou)、功能齊全、使用(yong)方便等(deng)(deng)特點(dian)。實用(yong)于電(dian)(dian)力(li)、工礦、科(ke)研等(deng)(deng)部(bu)門，對(dui)各(ge)種高壓(ya)(ya)電(dian)(dian)氣設備、電(dian)(dian)氣元件、絕緣材料進行工頻耐壓(ya)(ya)試(shi)(shi)驗(yan)和直流泄(xie)漏試(shi)(shi)驗(yan)，是高壓(ya)(ya)試(shi)(shi)驗(yan)中*的(de)儀器。

二、產品結構

LYYD高壓(ya)(ya)試驗成套裝置(zhi)鐵芯(xin)為單框式。線圈采用同芯(xin)圓(yuan)筒多層塔式結構(gou)，初級低(di)壓(ya)(ya)繞(rao)組繞(rao)在鐵芯(xin)上，次級高壓(ya)(ya)繞(rao)組繞(rao)在低(di)壓(ya)(ya)繞(rao)組外(wai)(wai)側，這(zhe)種同軸布置(zhi)減少(shao)了繞(rao)組間的藕(ou)合損耗。高壓(ya)(ya)硅堆(dui)用特殊工藝封(feng)裝在套管內，產(chan)品的外(wai)(wai)殼制成與器芯(xin)配(pei)合較佳(jia)的八(ba)角形結構(gou)，整體外(wai)(wai)型美觀(guan)大方。其內外(wai)(wai)部(bu)結構(gou)見圖1。

1-均壓(ya)(ya)(ya)(ya)(ya)球；2-硅堆(dui)短(duan)路桿；3-高壓(ya)(ya)(ya)(ya)(ya)套管；4-油閥；5-殼(ke)體；6、7-調整電壓(ya)(ya)(ya)(ya)(ya)輸(shu)(shu)入a、x端子(zi)(zi)；8、9-儀表測(ce)量(liang)E、F端子(zi)(zi)；10-高壓(ya)(ya)(ya)(ya)(ya)尾X端子(zi)(zi)；11-變(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)外(wai)殼(ke)接地端；12-高壓(ya)(ya)(ya)(ya)(ya)輸(shu)(shu)出A端子(zi)(zi)；13-高壓(ya)(ya)(ya)(ya)(ya)整流(liu)硅堆(dui)；14-內部均壓(ya)(ya)(ya)(ya)(ya)環；15-變(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)鐵芯；16-初級低壓(ya)(ya)(ya)(ya)(ya)繞(rao)組(zu)；17-測(ce)量(liang)儀表繞(rao)組(zu)；18-二次級高壓(ya)(ya)(ya)(ya)(ya)繞(rao)組(zu)；19-變(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)油。

三、工作原理

LYYD系列輕型高(gao)壓(ya)(ya)(ya)試驗(yan)(yan)變(bian)(bian)壓(ya)(ya)(ya)器(qi)為單(dan)相變(bian)(bian)壓(ya)(ya)(ya)器(qi)，聯結組標號II。單(dan)臺高(gao)壓(ya)(ya)(ya)試驗(yan)(yan)變(bian)(bian)壓(ya)(ya)(ya)器(qi)的(de)工作過程，用交流220V（10KVA以上(shang)(shang)為380V）電壓(ya)(ya)(ya)接入(ru)電源控制箱(xiang)（臺），經電源控制箱(xiang)（臺）內自藕調(diao)壓(ya)(ya)(ya)器(qi)（50KVA以上(shang)(shang)調(diao)壓(ya)(ya)(ya)器(qi)外附(fu)）調(diao)節0~200V（10KVA以上(shang)(shang)0~400V）電壓(ya)(ya)(ya)至(zhi)試驗(yan)(yan)變(bian)(bian)壓(ya)(ya)(ya)器(qi)的(de)初級繞(rao)組，根(gen)據電磁感應原(yuan)理，在試驗(yan)(yan)變(bian)(bian)壓(ya)(ya)(ya)器(qi)高(gao)壓(ya)(ya)(ya)繞(rao)組可(ke)獲得試驗(yan)(yan)所需的(de)高(gao)電壓(ya)(ya)(ya)。其工作原(yuan)理圖見圖2所示。

1、單臺LYYD高壓試驗變壓器工作原理(li)示意(yi)圖

在試驗(yan)變壓(ya)(ya)器中：a、x為(wei)低壓(ya)(ya)輸入端(duan)；A、X 為(wei)高壓(ya)(ya)輸出(chu)端(duan)；E、F為(wei)儀表(biao)測(ce)量(liang)端(duan)。

2、單臺交直(zhi)(zhi)流(liu)(liu)(liu)(liu)兩用型高(gao)(gao)壓(ya)(ya)試驗變壓(ya)(ya)器(qi)工作原理(li)見(jian)圖(tu)3。圖(tu)中(zhong)所示：高(gao)(gao)壓(ya)(ya)套管內裝有高(gao)(gao)壓(ya)(ya)硅堆，串接在高(gao)(gao)壓(ya)(ya)回路中(zhong)作高(gao)(gao)壓(ya)(ya)整流(liu)(liu)(liu)(liu)，以獲得直(zhi)(zhi)流(liu)(liu)(liu)(liu)高(gao)(gao)電壓(ya)(ya)。當用一短路桿將高(gao)(gao)壓(ya)(ya)硅堆短接時，可(ke)獲得交流(liu)(liu)(liu)(liu)高(gao)(gao)電壓(ya)(ya)，其狀(zhuang)態為(wei)交流(liu)(liu)(liu)(liu)輸出；反之在抽出短路桿時，其狀(zhuang)態為(wei)直(zhi)(zhi)流(liu)(liu)(liu)(liu)輸出。

3、三臺(tai)高(gao)壓(ya)(ya)試(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)(yan)變(bian)(bian)(bian)(bian)壓(ya)(ya)器(qi)串(chuan)激(ji)(ji)獲得更高(gao)電壓(ya)(ya)原理見(jian)圖(tu)4，串(chuan)激(ji)(ji)高(gao)壓(ya)(ya)試(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)(yan)變(bian)(bian)(bian)(bian)壓(ya)(ya)器(qi)有很(hen)大的(de)優越(yue)性(xing)，因為整個試(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)(yan)裝置由(you)多個單(dan)(dan)臺(tai)串(chuan)激(ji)(ji)式試(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)(yan)變(bian)(bian)(bian)(bian)壓(ya)(ya)器(qi)組(zu)成，單(dan)(dan)臺(tai)試(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)(yan)變(bian)(bian)(bian)(bian)壓(ya)(ya)器(qi)有著體(ti)積小(xiao)、重(zhong)量輕、便于運輸的(de)特點，它(ta)既可以串(chuan)接成高(gao)出(chu)幾倍的(de)單(dan)(dan)臺(tai)試(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)(yan)變(bian)(bian)(bian)(bian)壓(ya)(ya)器(qi)輸出(chu)電壓(ya)(ya)組(zu)合使用(yong)(yong)，又可以分開單(dan)(dan)獨使用(yong)(yong)。整套試(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)(yan)裝置投(tou)資小(xiao)、經濟(ji)實(shi)惠。圖(tu)3所示：在三臺(tai)串(chuan)激(ji)(ji)式試(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)(yan)變(bian)(bian)(bian)(bian)壓(ya)(ya)器(qi)串(chuan)激(ji)(ji)使用(yong)(yong)中(zhong)，單(dan)(dan)臺(tai)試(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)(yan)變(bian)(bian)(bian)(bian)壓(ya)(ya)器(qi)B1、B2、B3的(de)輸出(chu)電壓(ya)(ya)都是(shi)U，**、二(er)級(ji)的(de)試(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)(yan)變(bian)(bian)(bian)(bian)壓(ya)(ya)器(qi)內(nei)部(bu)都有一個激(ji)(ji)磁繞組(zu)，分別為A1、C1 和A2、C2。當控制(zhi)電壓(ya)(ya)加在**級(ji)試(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)(yan)變(bian)(bian)(bian)(bian)壓(ya)(ya)器(qi)B1的(de)初(chu)級(ji)繞組(zu)a1、x1上，激(ji)(ji)磁繞組(zu)A1、C1給(gei)予試(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)(yan)變(bian)(bian)(bian)(bian)壓(ya)(ya)器(qi)B2初(chu)級(ji)繞組(zu)供電，第二(er)級(ji)試(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)(yan)變(bian)(bian)(bian)(bian)壓(ya)(ya)器(qi)B2的(de)激(ji)(ji)磁繞組(zu)A2、C2給(gei)試(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)(yan)變(bian)(bian)(bian)(bian)壓(ya)(ya)器(qi)B3的(de)初(chu)級(ji)繞組(zu)供電。由(you)于**級(ji)試(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)(yan)變(bian)(bian)(bian)(bian)壓(ya)(ya)器(qi)B1的(de)高(gao)壓(ya)(ya)尾及殼(ke)體(ti)接地，第二(er)、三級(ji)的(de)試(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)(yan)變(bian)(bian)(bian)(bian)壓(ya)(ya)器(qi)B2和B3對(dui)地有絕緣支架的(de)隔離，這樣試(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)(yan)變(bian)(bian)(bian)(bian)壓(ya)(ya)器(qi)B1、B2、B3對(dui)地輸出(chu)電壓(ya)(ya)分別為1U、2U、3U。

B1、B2、B3- 串激式高壓變壓器；1U、2U、3U-各級對地(di)電壓；

PV- 高壓示值表（KV）； ZJ1、ZJ2-絕緣支架(jia)。

四、使用方法及注意事項(xiang)    

1、LYYD高(gao)壓(ya)(ya)(ya)試(shi)驗變(bian)壓(ya)(ya)(ya)器做工頻耐壓(ya)(ya)(ya)試(shi)驗使用(yong)接線(xian)方法見(jian)圖5。做工頻耐壓(ya)(ya)(ya)試(shi)驗前，先(xian)根據試(shi)驗變(bian)壓(ya)(ya)(ya)器的(de)額定容量(liang)選擇好限流(liu)電(dian)阻(zu)，(水電(dian)阻(zu))的(de)阻(zu)值，再根據被試(shi)品需加的(de)高(gao)壓(ya)(ya)(ya)電(dian)壓(ya)(ya)(ya)值調(diao)整好放電(dian)球隙的(de)球間(jian)距，為了提高(gao)對被試(shi)品施加電(dian)壓(ya)(ya)(ya)的(de)測量(liang)精(jing)度，應在(zai)高(gao)壓(ya)(ya)(ya)側接入FRC阻(zu)容分壓(ya)(ya)(ya)器來測量(liang)電(dian)壓(ya)(ya)(ya)。

R1、R2- 限流電阻； Qx- 放電球隙； Zx- 被試品；

FRC- 阻容分(fen)壓器； V- 分(fen)壓器高壓表。 

按(an)照圖(tu)4、結合圖(tu)2所進行的(de)工(gong)(gong)頻耐(nai)壓(ya)試(shi)驗(yan)接好(hao)工(gong)(gong)作線路，試(shi)驗(yan)變壓(ya)器(qi)(qi)的(de)高(gao)壓(ya)繞阻的(de)X端(duan)（高(gao)壓(ya)尾(wei)）、儀表測量(liang)繞組的(de)F端(duan)、試(shi)驗(yan)變壓(ya)器(qi)(qi)的(de)外殼以及電源控制箱（臺）的(de)外殼必須可靠(kao)接地。

用(yong)三臺試(shi)驗變(bian)壓(ya)(ya)(ya)(ya)器串激做工頻(pin)耐壓(ya)(ya)(ya)(ya)試(shi)驗時、第(di)二(er)(er)、三級(ji)試(shi)驗變(bian)壓(ya)(ya)(ya)(ya)器的(de)初級(ji)繞組(zu)X端(duan)(duan)，儀表測量繞組(zu)的(de)F端(duan)(duan)，以及高壓(ya)(ya)(ya)(ya)繞組(zu)的(de)X端(duan)(duan)（高壓(ya)(ya)(ya)(ya)尾）均(jun)接(jie)本(ben)級(ji)試(shi)驗變(bian)壓(ya)(ya)(ya)(ya)器的(de)外殼(ke)，第(di)二(er)(er)、三級(ji)試(shi)驗變(bian)壓(ya)(ya)(ya)(ya)器的(de)主(zhu)體(ti)必須放置在(zai)絕緣支架上。除(chu)**級(ji)以外、第(di)二(er)(er)、三級(ji)試(shi)驗變(bian)壓(ya)(ya)(ya)(ya)器的(de)主(zhu)體(ti)不要(yao)接(jie)地線(xian)。其接(jie)線(xian)方式見圖3所(suo)示(shi)。

接電(dian)(dian)源(yuan)前(qian)，電(dian)(dian)源(yuan)控制(zhi)箱（臺）的(de)調壓(ya)器必須調到零位(wei)。接通電(dian)(dian)源(yuan)后，綠色指示(shi)燈亮，按一下啟動(dong)按鈕(niu)，紅(hong)色指示(shi)燈亮，表示(shi)試驗變壓(ya)器已接通控制(zhi)電(dian)(dian)源(yuan)，開始升壓(ya)。

從零位開始(shi)按(an)順時針方(fang)向勻(yun)速(su)旋轉調(diao)壓(ya)(ya)(ya)(ya)(ya)器手輪升(sheng)(sheng)壓(ya)(ya)(ya)(ya)(ya)。（升(sheng)(sheng)壓(ya)(ya)(ya)(ya)(ya)方(fang)式有(you)：快速(su)升(sheng)(sheng)壓(ya)(ya)(ya)(ya)(ya)法(fa)，即(ji)20S逐(zhu)級升(sheng)(sheng)壓(ya)(ya)(ya)(ya)(ya)法(fa)，慢速(su)升(sheng)(sheng)壓(ya)(ya)(ya)(ya)(ya)法(fa)，即(ji)60S逐(zhu)級升(sheng)(sheng)壓(ya)(ya)(ya)(ya)(ya)法(fa)，極(ji)慢速(su)升(sheng)(sheng)壓(ya)(ya)(ya)(ya)(ya)法(fa)供選用）電(dian)壓(ya)(ya)(ya)(ya)(ya)從零開始(shi)按(an)選定(ding)的(de)(de)升(sheng)(sheng)壓(ya)(ya)(ya)(ya)(ya)速(su)度升(sheng)(sheng)到(dao)您所(suo)需(xu)額定(ding)試(shi)驗(yan)電(dian)壓(ya)(ya)(ya)(ya)(ya)的(de)(de)75%后(hou)，再以(yi)每秒(miao)2%額定(ding)試(shi)驗(yan)電(dian)壓(ya)(ya)(ya)(ya)(ya)的(de)(de)速(su)度升(sheng)(sheng)到(dao)您所(suo)需(xu)試(shi)驗(yan)電(dian)壓(ya)(ya)(ya)(ya)(ya)，并密切注意測量儀表的(de)(de)指(zhi)示(shi)以(yi)及被(bei)試(shi)品(pin)的(de)(de)情況，被(bei)試(shi)品(pin)施加電(dian)壓(ya)(ya)(ya)(ya)(ya)的(de)(de)時間到(dao)后(hou)。應(ying)在數秒(miao)內勻(yun)速(su)將調(diao)壓(ya)(ya)(ya)(ya)(ya)器返回(hui)，高壓(ya)(ya)(ya)(ya)(ya)降至1/3試(shi)驗(yan)電(dian)壓(ya)(ya)(ya)(ya)(ya)以(yi)下(xia)，按(an)一下(xia)停止(zhi)按(an)鈕，高壓(ya)(ya)(ya)(ya)(ya)、低壓(ya)(ya)(ya)(ya)(ya)輸(shu)出停止(zhi)，然(ran)后(hou)切斷電(dian)源線(xian)，試(shi)驗(yan)完畢。

工(gong)頻耐壓試(shi)驗操作過(guo)程注意事(shi)項

1、試驗(yan)人(ren)(ren)員(yuan)應(ying)做好(hao)責任分工,設(she)定(ding)好(hao)試驗(yan)現場的安(an)全距(ju)離,仔細檢查好(hao)被(bei)(bei)試品及試驗(yan)變壓器的接地情況,并設(she)有專人(ren)(ren)監護安(an)全及觀察被(bei)(bei)試品狀態工作。

2、被試品主要(yao)部位應清(qing)理干(gan)凈，保(bao)持優良干(gan)燥，以免損(sun)壞被試品和(he)帶來試驗數(shu)值的誤差(cha)。

3、對大型設備的試(shi)驗(yan)(yan)，一般都應先進行試(shi)驗(yan)(yan)變壓器的空(kong)升試(shi)驗(yan)(yan)，即不接試(shi)品時升壓至試(shi)驗(yan)(yan)電壓，以便(bian)校(xiao)對好(hao)儀表的指示精度，調(diao)整(zheng)好(hao)放電球隙的球間距。

4、做耐壓(ya)試驗時升(sheng)壓(ya)速(su)度不能過快，并防(fang)止突然加壓(ya)，例如調(diao)壓(ya)器不在零位的突然合閘，也不能突然斷電(dian)，一(yi)般(ban)應在調(diao)壓(ya)器降至(zhi)零位時分閘。

5、在(zai)升(sheng)壓或耐(nai)壓試驗(yan)過程(cheng)中，如發(fa)現下列不(bu)正常(chang)情(qing)況，1 電(dian)壓、電(dian)流表(biao)指針擺動很大，2 被試品發(fa)出(chu)不(bu)正常(chang)響(xiang)聲，3 發(fa)現絕緣有燒焦或冒煙現象，應(ying)立即降壓，切斷電(dian)源，停止試驗(yan)并查明原因。

6、使用本(ben)產品(pin)做高壓試驗時，除(chu)熟悉(xi)本(ben)說明書(shu)外，還必須嚴格(ge)執(zhi)行(xing)國(guo)家有關標準和操作規程。

2、YDQ交直(zhi)流(liu)(liu)(liu)兩用高(gao)(gao)(gao)壓(ya)(ya)(ya)試(shi)驗(yan)(yan)變(bian)壓(ya)(ya)(ya)器做直(zhi)流(liu)(liu)(liu)耐壓(ya)(ya)(ya)和泄(xie)(xie)漏試(shi)驗(yan)(yan)使(shi)用接線方(fang)法見圖5。由于是(shi)交直(zhi)流(liu)(liu)(liu)兩用高(gao)(gao)(gao)壓(ya)(ya)(ya)試(shi)驗(yan)(yan)變(bian)壓(ya)(ya)(ya)器，應把高(gao)(gao)(gao)壓(ya)(ya)(ya)硅(gui)堆(dui)(dui)短路桿從套管中抽出(chu)，使(shi)試(shi)驗(yan)(yan)變(bian)壓(ya)(ya)(ya)器為直(zhi)流(liu)(liu)(liu)輸出(chu)狀態。做直(zhi)流(liu)(liu)(liu)泄(xie)(xie)漏試(shi)驗(yan)(yan)前，先根(gen)據(ju)泄(xie)(xie)漏試(shi)驗(yan)(yan)中輸出(chu)端斷(duan)路電流(liu)(liu)(liu)不超過高(gao)(gao)(gao)壓(ya)(ya)(ya)硅(gui)堆(dui)(dui)的(de)(de)(de)*大(da)整流(liu)(liu)(liu)為宜，選(xuan)擇好限流(liu)(liu)(liu)電阻（水(shui)電阻）的(de)(de)(de)阻值，再根(gen)據(ju)被試(shi)品對(dui)直(zhi)流(liu)(liu)(liu)高(gao)(gao)(gao)壓(ya)(ya)(ya)波(bo)形的(de)(de)(de)要求選(xuan)擇好高(gao)(gao)(gao)壓(ya)(ya)(ya)濾波(bo)電容(rong)的(de)(de)(de)電容(rong)值。為了提(ti)高(gao)(gao)(gao)對(dui)被試(shi)品施加電壓(ya)(ya)(ya)的(de)(de)(de)測(ce)量(liang)精(jing)度，應在高(gao)(gao)(gao)壓(ya)(ya)(ya)側(ce)接入FRC阻容(rong)分壓(ya)(ya)(ya)器來測(ce)量(liang)電壓(ya)(ya)(ya)。 

R- 限流(liu)電阻(zu)； C- 高壓濾波電容； Zx- 被(bei)試(shi)品； G- 硅堆短路桿；

FRC- 阻容分壓器；V- 分壓器高壓表(biao)；uA- 微安表(biao)；D- ;高壓整流硅堆。

按照圖(tu)5、結合圖(tu)3所進行的直流泄漏試(shi)(shi)驗(yan)接好工(gong)作線(xian)路。試(shi)(shi)驗(yan)變壓(ya)器(qi)的高壓(ya)繞組(zu)的X端(duan)（高壓(ya)尾）、儀(yi)表測量繞組(zu)的F 端(duan)、試(shi)(shi)驗(yan)變壓(ya)器(qi)的外殼(ke)以及電源控制(zhi)箱（臺(tai)）的外殼(ke)必(bi)須(xu)可靠接地(di)。

LYYD試驗變做交流試驗接線原理圖

LYYD試驗(yan)變做(zuo)交流泄漏試驗(yan)接線原(yuan)理(li)圖

接電(dian)源(yuan)前、電(dian)源(yuan)控(kong)制箱（臺）的調壓器(qi)(qi)必須調到零位(wei)。接通(tong)電(dian)源(yuan)后，綠色(se)指(zhi)示燈亮，按(an)一下啟動按(an)鈕，紅色(se)指(zhi)示燈亮，表示試驗變壓器(qi)(qi)已(yi)接通(tong)控(kong)制電(dian)源(yuan)，開始升壓。

從(cong)零位開(kai)(kai)始按順時(shi)針(zhen)方向勻(yun)速(su)(su)旋轉調(diao)壓(ya)(ya)(ya)(ya)器手輪(lun)升(sheng)(sheng)壓(ya)(ya)(ya)(ya)。（升(sheng)(sheng)壓(ya)(ya)(ya)(ya)方式有：快速(su)(su)升(sheng)(sheng)壓(ya)(ya)(ya)(ya)法(fa)(fa)即(ji)20S逐級升(sheng)(sheng)壓(ya)(ya)(ya)(ya)法(fa)(fa)；慢速(su)(su)升(sheng)(sheng)壓(ya)(ya)(ya)(ya)法(fa)(fa)，即(ji)60S逐級升(sheng)(sheng)壓(ya)(ya)(ya)(ya)法(fa)(fa)；級慢速(su)(su)升(sheng)(sheng)壓(ya)(ya)(ya)(ya)法(fa)(fa)供選用）電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)從(cong)零開(kai)(kai)始按選定(ding)的(de)升(sheng)(sheng)壓(ya)(ya)(ya)(ya)速(su)(su)度升(sheng)(sheng)到您所需額定(ding)試驗電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)或額定(ding)直流(liu)電(dian)(dian)(dian)流(liu)下的(de)參考電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)。試驗中應嚴密(mi)注意(yi)直流(liu)高(gao)壓(ya)(ya)(ya)(ya)表(biao)、泄漏(lou)電(dian)(dian)(dian)流(liu)表(biao)指(zhi)示(shi)以及(ji)被試品的(de)情況。試驗完畢(bi)后(hou)，應訊速(su)(su)均勻(yun)將高(gao)壓(ya)(ya)(ya)(ya)降(jiang)至零位，按一下停止按鈕，高(gao)壓(ya)(ya)(ya)(ya)、低壓(ya)(ya)(ya)(ya)輸出(chu)停止，然后(hou)切斷電(dian)(dian)(dian)源(yuan)。此時(shi)應用直流(liu)高(gao)壓(ya)(ya)(ya)(ya)放電(dian)(dian)(dian)棒給被試品及(ji)試驗裝(zhuang)置本身充分放電(dian)(dian)(dian)。

直流(liu)泄漏(lou)試驗(yan)操作過(guo)程注意事項

（1）試驗人員應做好責任分工，設定好試驗現場的安全距離，仔細檢查好被試品及試驗變壓器的接地情況，并設有專人監護安全及觀察被試品狀態工作。
（2）被試品做試驗前，應拆除所有對外連線，并充分放電，主要部位應清理干凈，保持優良干燥，以免損壞被試品及帶來試驗數值的誤差。
（3）對于大容量試品（電容器、超長電纜等）試驗時應緩慢升壓，防止被試品的充電電流過大而燒壞微安表，必要時應分級加壓分別讀取各電壓下微安表的穩定讀數。
（4）試(shi)驗過程中，應(ying)嚴密監視被(bei)試(shi)品、微(wei)安表及試(shi)驗裝置(zhi)等(deng)(deng)，一旦發生閃爍、擊(ji)穿等(deng)(deng)現象應(ying)立即(ji)降壓，切斷電源(yuan)，并查明原因。

五、配套選購產品

下列產品僅供選擇，購買時需另行計價。
1.KZX系列電源控制箱 容量:1KVA-5KVA、輸入電壓：220V
2.KZT系列電源控制臺 容量:10KVA~300KVA輸入電壓：220V或380V
3.數字微安表：SWB-II
4.高壓濾波電容： 0.01MF、40 ~ 100KV
5.高壓直流放電棒： FBR— 70、140、210KV
6.放電球隙： Q—50、100、150、200、250、500
7.標準試油杯： 400ml
8.折疊式手推車： 150、300型
9.絕緣支架： 50、100、200、300、400KV
10.阻容分壓器： FRC —50、100、150、200KV
11.高壓硅堆： 2DL—150、300、450KV
12.水 電 阻： 50、100

六、主要試驗設備的選擇

1、試驗變壓器
其(qi)高壓側(ce)額定(ding)電(dian)壓應不小于被(bei)試(shi)(shi)品(pin)的*高試(shi)(shi)驗電(dian)壓，額定(ding)電(dian)流(liu)不小于被(bei)試(shi)(shi)品(pin)的*大電(dian)容電(dian)流(liu)。被(bei)試(shi)(shi)品(pin)的電(dian)容電(dian)流(liu)和試(shi)(shi)驗變(bian)壓器所需容量計算式為：

被(bei)試(shi)品(pin)電容量(liang)Cx可由交流電橋(qiao)測出。常用的被(bei)試(shi)品(pin)電容量(liang)按表1選取。

幾種(zhong)常用被(bei)試品的電容量（pF） 表1

2、調壓設備

（1）自(zi)藕調壓(ya)(ya)器(qi)。其調壓(ya)(ya)范圍(wei)廣、功率(lv)損耗小(xiao)、波形(xing)畸變(bian)小(xiao)、選擇這種(zhong)調壓(ya)(ya)方式為*好(hao)。自(zi)藕調壓(ya)(ya)器(qi)的容(rong)量(liang)按(an)0.75 ~ 1倍的試(shi)驗變(bian)壓(ya)(ya)器(qi)的容(rong)量(liang)選擇，適(shi)用于容(rong)量(liang)為100KVA以下的試(shi)驗變(bian)壓(ya)(ya)器(qi)的調壓(ya)(ya)。

（2）感應調壓器。其調壓范圍大，波形畸形小、但結構復(fu)雜、價(jia)格(ge)較貴，當試驗變(bian)壓器的容量較大時（如100KVA以上）使用(yong)。

3、限流電阻

限流電阻的作用是，當被試品擊穿時，限制斷路電流，從而保護試驗變壓器，防止故障的擴大。其數值以*高試驗電壓為準，按0.5 ~ 1 Ω / V（有效值）選擇，限流電阻可用水電阻。注意水不能充滿玻璃管，應留有余地，以防爆裂。
4、放電球隙

放(fang)電(dian)球(qiu)(qiu)隙(xi)的(de)(de)(de)布(bu)置方式有(you)垂(chui)直和水平兩種，球(qiu)(qiu)隙(xi)間距S和球(qiu)(qiu)的(de)(de)(de)直徑(jing)D的(de)(de)(de)關系應保(bao)護在0.05D ≤S ≤0.5D范圍(wei)(wei)內，球(qiu)(qiu)隙(xi)上的(de)(de)(de)水電(dian)阻(zu)(zu)阻(zu)(zu)值一般按0.1 ~ 1Ω/V選取(qu),設(she)置放(fang)電(dian)球(qiu)(qiu)隙(xi)的(de)(de)(de)目(mu)的(de)(de)(de)是為(wei)了對重要的(de)(de)(de)被試品起保(bao)護作用,可以將由于誤操作或被試品擊穿引(yin)起的(de)(de)(de)過電(dian)壓限制在允許的(de)(de)(de)范圍(wei)(wei)內。

七、試(shi)驗變壓器技術指示

型號(hao)	容量	高壓電壓	高壓電(dian)流	低壓輸入		變比	溫升℃
	(KVA)	(KV)	(mA)	電壓(ya)(V)	電流(A)	高/儀	30分鐘
LYYD-1.5/50	1.5	50	30	200	7.5	500	10
LYYD-3/50	3	50	60	200	15	500	10
LYYD-5/50	5	50	100	200	25	500	10
LYYD-10/50	10	50	200	200	50	500	10
LYYD-15/50	15	50	300	200	75	500	10
LYYD-20/50	20	50	400	380	53	500	10
LYYD-30/50	30	50	600	380	79	500	10
LYYD-50/50	50	50	1000	380	12	500	10
LYYD-5/100	5	100	50	200	25	1000	10
LYYD-10/100	10	100	100	200	50	1000	10
LYYD-20/100	20	100	200	400	50	1000	10
LYYD-30/100	30	100	300	400	75	1000	10
LYYD-50/100	50	100	500	400	125	1000	10
LYYD-20/150	20	150	133	400	50	1500	10
LYYD-25/150	25	150	167	400	62.5	1500	10
LYYD-50/150	50	150	333	400	125	1500	10
LYYD-100/150	100	150	667	400	250	1500	10
LYYD-50/200	50	200	250	400	125	2000	10
LYYD-100/200	100	200	500	400	250	2000	10
LYYD-150/200	150	200	750	400	375	2000	10
LYYD-200/200	200	200	1000	400	500	2000	10
LYYD-300/200	300	200	1500	400	600	2000	10
LYYD-50/300	50	300	170	400	125	3000	10
LYYD-100/300	100	300	333	400	250	3000	10
LYYD-150/300	150	300	500	400	375	3000	10
LYYD-200/300	200	300	667	400	500	3000	10
LYYD-300/300	300	300	3000	500	600	3000	10

1、使用環境條件
環境溫度不高于+40℃、不低于—20℃；空氣相對濕度不大于90%；海拔高度不超過2000米；
2、工作電壓
電源控制箱（臺）輸入電壓為工頻220V或380V、相對誤差不超過±10%；（具體使用電壓根據用戶所定試驗變壓器規格選取）
八、隨貨文件

LYYD 系列試驗變壓器產品說明書 1份
產品出廠試驗報告 1份
產品合格證 1份
裝箱單 1份