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產品名稱: 交流(liu)耐壓發生器

產品型號: WBTQSB-30KVA/150KV

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產品簡介

WBTQSB-30KVA/150KV交流耐壓發生器具有體積小、重量輕、不受氣候變化影響、電暈小、現場搬運無需靜止可使用，使用壽命長、免維修等特點。適用于電力系統、工礦企業、科研部門等對各種高壓電氣設備、電氣元件、絕緣材料進行工頻或直流高壓下的絕緣強度試驗。交流耐壓發生器采用單框芯式鐵芯結構，初級繞組繞在鐵芯上，高壓繞組在外，這種同軸布置減少了漏磁通，因而增大了繞組間的耦合。

詳細介紹

一、WBTQSB-30KVA/150KV交流耐壓發生器概述

YDQ系列高(gao)壓(ya)(ya)(ya)試驗變(bian)(bian)(bian)壓(ya)(ya)(ya)器是根據(ju)《試驗變(bian)(bian)(bian)壓(ya)(ya)(ya)器》標準，在(zai)油浸式試驗變(bian)(bian)(bian)壓(ya)(ya)(ya)器的(de)(de)(de)基(ji)礎上而設計生產(chan)(chan)的(de)(de)(de)。SF6氣(qi)(qi)(qi)體具有良好的(de)(de)(de)電氣(qi)(qi)(qi)絕(jue)緣(yuan)性能及優(you)異的(de)(de)(de)滅弧性能，其耐壓(ya)(ya)(ya)強度為同一(yi)壓(ya)(ya)(ya)力(li)(li)下氮(dan)氣(qi)(qi)(qi)的(de)(de)(de)2.5倍(bei)，擊穿(chuan)電壓(ya)(ya)(ya)的(de)(de)(de)空氣(qi)(qi)(qi)的(de)(de)(de)2.5倍(bei)。在(zai)0.25MPa下與油的(de)(de)(de)擊穿(chuan)電壓(ya)(ya)(ya)相等，在(zai)0.45MPa壓(ya)(ya)(ya)力(li)(li)下是油的(de)(de)(de)擊穿(chuan)電壓(ya)(ya)(ya)的(de)(de)(de)2倍(bei)，是一(yi)種優(you)于(yu)油的(de)(de)(de)新一(yi)代(dai)超高(gao)壓(ya)(ya)(ya)絕(jue)緣(yuan)介質材(cai)料。該(gai)產(chan)(chan)品(pin)技(ji)術(shu)要求完全符合《ZBK-41006-89》標準，它是油浸式輕型試驗變(bian)(bian)(bian)壓(ya)(ya)(ya)器的(de)(de)(de)換代(dai)產(chan)(chan)品(pin)。該(gai)產(chan)(chan)品(pin)具有體積小(xiao)(xiao)、重(zhong)量輕、不受氣(qi)(qi)(qi)候(hou)變(bian)(bian)(bian)化影響、電暈小(xiao)(xiao)、現場搬運無需靜止可(ke)使用(yong)(yong)，使用(yong)(yong)壽命長、免維(wei)修(xiu)等特點。適用(yong)(yong)于(yu)電力(li)(li)系統、工礦企業、科(ke)研部門(men)等對各(ge)種高(gao)壓(ya)(ya)(ya)電氣(qi)(qi)(qi)設備、電氣(qi)(qi)(qi)元件(jian)、絕(jue)緣(yuan)材(cai)料進行工頻或直(zhi)流高(gao)壓(ya)(ya)(ya)下的(de)(de)(de)絕(jue)緣(yuan)強度試驗。

二、WBTQSB-30KVA/150KV交流耐壓發生器產品結構

YDQ系列高壓試(shi)驗變壓器(qi)采用單框芯(xin)式鐵芯(xin)結構(gou)，初級繞(rao)組繞(rao)在鐵芯(xin)上，高壓繞(rao)組在外，這(zhe)種同軸布置(zhi)減(jian)少了(le)漏磁通，因而增大了(le)繞(rao)組間的耦合。產品的外殼為圓柱灌式容器(qi)結構(gou)，能耐受(shou)0.8MPa以(yi)上壓力。其結構(gou)見圖1：

<strong><strong>SF6充氣型試驗變壓器</strong></strong>

三、WBTQSB-30KVA/150KV交流耐壓發生器工作原理

YDQ系列(lie)高(gao)壓(ya)(ya)試(shi)驗(yan)(yan)變壓(ya)(ya)器(qi)(qi)為(wei)單相變壓(ya)(ya)器(qi)(qi)，聯(lian)結組標號Ⅰ.Ⅰ. 用(yong)工(gong)頻220V(10kVA以上為(wei)380V)電源接(jie)入 (為(wei)本公司生產的(de)試(shi)驗(yan)(yan)變壓(ya)(ya)器(qi)(qi)配套專(zhuan)用(yong)設備，詳細(xi)資(zi)料請見(jian)其具體使用(yong)說明(ming)書(shu))系列(lie)操(cao)作箱(臺(tai))，經操(cao)作箱內自(zi)偶調(diao)壓(ya)(ya)器(qi)(qi)(50kVA以上調(diao)壓(ya)(ya)器(qi)(qi)外附)調(diao)節(jie)至(zhi)0～200V(或0～400V)電壓(ya)(ya)輸出至(zhi)YDQ試(shi)驗(yan)(yan)變壓(ya)(ya)器(qi)(qi)的(de)初級繞組，根據電磁感應原(yuan)理，在試(shi)驗(yan)(yan)變壓(ya)(ya)器(qi)(qi)高(gao)壓(ya)(ya)繞組可(ke)獲得試(shi)驗(yan)(yan)所需的(de)高(gao)電壓(ya)(ya)。

單臺YDQ系列高(gao)壓(ya)試驗變壓(ya)器的工作原理圖(tu)(tu)見圖(tu)(tu)2。

單臺YDQ系列(lie)交直流(liu)高(gao)壓試驗變壓器的工(gong)作(zuo)原理圖見圖3，圖中高(gao)壓套管中裝(zhuang)有高(gao)壓硅(gui)堆，串(chuan)接在高(gao)壓回路中作(zuo)半波整流(liu)，以(yi)獲得(de)直流(liu)高(gao)電壓。當用(yong)一短(duan)路桿將(jiang)高(gao)壓硅(gui)堆短(duan)接時(shi)，可獲得(de)工(gong)頻高(gao)電壓，作(zuo)為交流(liu)輸出(chu)狀(zhuang)態(tai)；取消短(duan)路桿時(shi)，作(zuo)為直流(liu)輸出(chu)狀(zhuang)態(tai)。

試驗變壓器高壓套管(guan)中的高壓硅堆未畫(hua)出，其(qi)原(yuan)理(li)與上圖相同。

三臺(tai)(tai)(tai)試(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)串級(ji)(ji)獲得更(geng)高(gao)(gao)電(dian)(dian)壓(ya)(ya)(ya)的(de)(de)(de)接(jie)線原理(li)見圖(tu)4。串級(ji)(ji)高(gao)(gao)壓(ya)(ya)(ya)試(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)有很大的(de)(de)(de)優(you)越性，因為整個試(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)裝(zhuang)置由幾(ji)臺(tai)(tai)(tai)單(dan)(dan)(dan)(dan)臺(tai)(tai)(tai)試(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)組(zu)成(cheng)(cheng)，單(dan)(dan)(dan)(dan)臺(tai)(tai)(tai)試(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)容(rong)量(liang)小、電(dian)(dian)壓(ya)(ya)(ya)低、重量(liang)輕，便于運輸(shu)和(he)安裝(zhuang)。它既然可串接(jie)成(cheng)(cheng)高(gao)(gao)出幾(ji)倍(bei)的(de)(de)(de)單(dan)(dan)(dan)(dan)臺(tai)(tai)(tai)試(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)輸(shu)出電(dian)(dian)壓(ya)(ya)(ya)組(zu)合使用，又可分開(kai)成(cheng)(cheng)幾(ji)套(tao)單(dan)(dan)(dan)(dan)臺(tai)(tai)(tai)試(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)單(dan)(dan)(dan)(dan)獨使用。整套(tao)裝(zhuang)置投資小，經濟實惠。圖(tu)5中(zhong)，在**級(ji)(ji)和(he)**級(ji)(ji)的(de)(de)(de)每個單(dan)(dan)(dan)(dan)元試(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)中(zhong)都有一個勵磁(ci)繞(rao)(rao)(rao)(rao)組(zu)A1、C1和(he)A2、C2。在三臺(tai)(tai)(tai)串級(ji)(ji)試(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)基本原理(li)中(zhong)，低壓(ya)(ya)(ya)電(dian)(dian)源加在試(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)Ⅰ的(de)(de)(de)初(chu)級(ji)(ji)繞(rao)(rao)(rao)(rao)組(zu)a1x1上，單(dan)(dan)(dan)(dan)臺(tai)(tai)(tai)試(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)Ⅰ、Ⅱ、Ⅲ的(de)(de)(de)輸(shu)出電(dian)(dian)壓(ya)(ya)(ya)都是(shi)V。勵磁(ci)繞(rao)(rao)(rao)(rao)組(zu)A1、C1給**級(ji)(ji)試(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)Ⅱ的(de)(de)(de)初(chu)級(ji)(ji)繞(rao)(rao)(rao)(rao)組(zu)供(gong)(gong)電(dian)(dian)；**級(ji)(ji)試(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)Ⅱ的(de)(de)(de)勵磁(ci)繞(rao)(rao)(rao)(rao)組(zu)A2、C2給第三級(ji)(ji)試(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)Ⅲ的(de)(de)(de)初(chu)級(ji)(ji)繞(rao)(rao)(rao)(rao)組(zu)供(gong)(gong)電(dian)(dian)。**級(ji)(ji)試(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)Ⅱ和(he)第三級(ji)(ji)試(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)Ⅲ的(de)(de)(de)箱(xiang)(xiang)體(ti)分別處(chu)在對地為1V和(he)2V的(de)(de)(de)高(gao)(gao)電(dian)(dian)位(wei)上，所以箱(xiang)(xiang)體(ti)對地是(shi)絕緣的(de)(de)(de)，試(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)Ⅰ的(de)(de)(de)箱(xiang)(xiang)體(ti)是(shi)接(jie)地的(de)(de)(de)。這樣**級(ji)(ji)、**級(ji)(ji)、第三級(ji)(ji)試(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)對地的(de)(de)(de)額(e)定(ding)輸(shu)出電(dian)(dian)壓(ya)(ya)(ya)分別為1V、2V、3V；其額(e)定(ding)容(rong)量(liang)分別為3P、2P、1P。

YDQ系列高壓(ya)試驗變壓(ya)器做被(bei)試品的工(gong)頻耐壓(ya)試驗使用接(jie)線原理圖見(jian)圖5。

圖(tu)中：R1—限(xian)流(liu)電阻(zu) FRC—阻(zu)容分壓(ya)器 RF—球間隙(xi)保護電阻(zu) G—球間隙(xi)   CX—被試(shi)品

注：高(gao)壓(ya)尾必須(xu)可靠接(jie)地

工頻耐壓(ya)試驗中(zhong)限(xian)流(liu)電(dian)(dian)(dian)阻R1應(ying)根(gen)據(ju)試驗變壓(ya)器的額(e)定容量來(lai)選擇。如高壓(ya)側(ce)額(e)定輸(shu)出(chu)電(dian)(dian)(dian)流(liu)在(zai)100～300mA時，可(ke)取0.5～1Ω/V(試驗電(dian)(dian)(dian)壓(ya))；高壓(ya)側(ce)額(e)定輸(shu)出(chu)電(dian)(dian)(dian)流(liu)為1A以(yi)上時，可(ke)取1Ω/V(試驗電(dian)(dian)(dian)壓(ya))。常用水電(dian)(dian)(dian)阻作為限(xian)流(liu)電(dian)(dian)(dian)阻，管子(zi)長度可(ke)按150kV/m考(kao)慮，管子(zi)粗細應(ying)具(ju)有足夠(gou)的熱容量(水阻液配制方法：用蒸餾水加(jia)入適量硫酸銅配制成各種不同的阻值)。

球(qiu)(qiu)(qiu)間隙(xi)(xi)及(ji)保(bao)護(hu)(hu)電(dian)(dian)阻：當電(dian)(dian)壓超過球(qiu)(qiu)(qiu)間隙(xi)(xi)整定值時(一般取(qu)試(shi)驗電(dian)(dian)壓的110%~120%)，球(qiu)(qiu)(qiu)間隙(xi)(xi)放(fang)電(dian)(dian)，對被試(shi)品起到保(bao)護(hu)(hu)作用。球(qiu)(qiu)(qiu)間隙(xi)(xi)保(bao)護(hu)(hu)電(dian)(dian)阻可按1Ω/V(試(shi)驗電(dian)(dian)壓)選取(qu)。

在(zai)工(gong)頻耐壓(ya)(ya)試(shi)(shi)驗(yan)(yan)中(zhong)，低電(dian)(dian)壓(ya)(ya)側(ce)測(ce)量電(dian)(dian)壓(ya)(ya)(儀(yi)表電(dian)(dian)壓(ya)(ya))不是(shi)非常準確的(de)(de)，其原因(yin)是(shi)由于試(shi)(shi)驗(yan)(yan)變(bian)壓(ya)(ya)器存(cun)在(zai)著(zhu)(zhu)漏抗，在(zai)這個(ge)漏抗上(shang)(shang)必(bi)然存(cun)在(zai)著(zhu)(zhu)壓(ya)(ya)降或容(rong)升，使試(shi)(shi)品(pin)上(shang)(shang)的(de)(de)電(dian)(dian)壓(ya)(ya)低于或高(gao)于低壓(ya)(ya)側(ce)測(ce)量電(dian)(dian)壓(ya)(ya)表上(shang)(shang)反映出(chu)來的(de)(de)電(dian)(dian)壓(ya)(ya)。工(gong)頻耐壓(ya)(ya)試(shi)(shi)驗(yan)(yan)時，被試(shi)(shi)品(pin)上(shang)(shang)的(de)(de)電(dian)(dian)壓(ya)(ya)高(gao)于試(shi)(shi)驗(yan)(yan)變(bian)壓(ya)(ya)器的(de)(de)輸(shu)出(chu)電(dian)(dian)壓(ya)(ya)，也就是(shi)所謂(wei)容(rong)升現象(xiang)。感應(ying)耐壓(ya)(ya)試(shi)(shi)驗(yan)(yan)時，試(shi)(shi)驗(yan)(yan)變(bian)壓(ya)(ya)器的(de)(de)漏抗必(bi)然存(cun)在(zai)著(zhu)(zhu)壓(ya)(ya)降。為了準確測(ce)量被試(shi)(shi)品(pin)上(shang)(shang)所施加的(de)(de)電(dian)(dian)壓(ya)(ya)，因(yin)此常在(zai)高(gao)壓(ya)(ya)側(ce)接(jie)入FRC阻容(rong)分壓(ya)(ya)器來測(ce)量電(dian)(dian)壓(ya)(ya)(見圖5)。

工頻耐壓(ya)試(shi)驗操作(zuo)注意事(shi)項

1）試驗(yan)人員應做好(hao)分工(gong)，明(ming)確相互間聯系方法。并有專門人監護現(xian)場**及觀察試品狀態(tai)。

2）被(bei)試品應先清掃干凈，并(bing)**干燥(zao)，以免損(sun)壞被(bei)試品和試驗帶來的誤差。

3）對于大(da)型試(shi)(shi)(shi)驗(yan)，一(yi)般(ban)都應先進行空升試(shi)(shi)(shi)驗(yan)。即不接(jie)試(shi)(shi)(shi)品時升壓至(zhi)試(shi)(shi)(shi)驗(yan)電壓，校對各種表計，調整球間隙。

4）升(sheng)壓(ya)速度(du)不能太(tai)快，并必須防(fang)止突然(ran)(ran)加壓(ya)。例如調壓(ya)器不在零(ling)位時(shi)突然(ran)(ran)合(he)閘。也不能突然(ran)(ran)切斷(duan)電源，一般應在調壓(ya)器降至(zhi)零(ling)位時(shi)拉閘。

5）當電(dian)壓(ya)(ya)升至試(shi)驗電(dian)壓(ya)(ya)時，開(kai)始(shi)計時，到1min后，迅速降壓(ya)(ya)到1/3試(shi)驗電(dian)壓(ya)(ya)以下時，才能(neng)拉開(kai)電(dian)源。

6）在(zai)升(sheng)壓(ya)或(huo)耐壓(ya)試驗過(guo)程(cheng)中，如發(fa)現下列(lie)不(bu)(bu)正(zheng)常情況時，應立即降(jiang)壓(ya)，切斷電源。停(ting)止試驗并(bing)查明原因：①電壓(ya)表指針擺(bai)動很大；②發(fa)現絕(jue)緣燒焦或(huo)冒煙；③被試品(pin)內有(you)不(bu)(bu)正(zheng)常的聲音(yin)。

7）耐壓試驗前后應測量絕(jue)緣(yuan)電(dian)阻，檢查絕(jue)緣(yuan)情況。

試(shi)(shi)驗變(bian)壓器在做被試(shi)(shi)品的(de)直流(liu)耐壓或泄露試(shi)(shi)驗時接線原理圖如圖6。

注：此(ci)試驗應先抽出(chu)短路桿“D”，圖6中所示。

圖中：VD—高(gao)壓硅堆 R1—限流電(dian)阻(zu) C1—高(gao)壓濾波電(dian)容   FRC—阻(zu)容分壓器(qi) CX—被試品 μA—帶保護微(wei)安(an)表

泄露試驗(yan)(yan)中(zhong)(zhong)限(xian)流電(dian)阻(zu)R1選擇在額定輸(shu)出電(dian)壓時，輸(shu)出端(duan)短路(lu)電(dian)流不超過高(gao)壓硅堆的(de)*大整流。如電(dian)壓硅堆的(de)*大整流電(dian)流為100mA時用于60kV的(de)試驗(yan)(yan)裝置(zhi)中(zhong)(zhong)，限(xian)流電(dian)阻(zu)按R1=60/0.1=600kΩ選擇。限(xian)流電(dian)阻(zu)還應具有足夠(gou)的(de)容量(liang)和沿面放電(dian)距(ju)離。

高壓濾波電(dian)容C1一(yi)般選擇在0.01~0.1μF，當(dang)被試品的電(dian)容量很大時，C1可省略不用。

泄露試驗的操作(zuo)及注意事項(xiang)

1）試(shi)驗(yan)前應(ying)先(xian)檢查被試(shi)品是否(fou)停電，接地放電，一切對外(wai)連線是否(fou)擦(ca)干凈。要嚴(yan)防將試(shi)驗(yan)電壓加(jia)到有人工作的部位上去。

2）接好試驗裝置(zhi)的接線后(hou)，應(ying)復查無誤(wu)后(hou)才可(ke)加壓。應(ying)特(te)別注意檢查高(gao)壓設備(bei)及引線與(yu)地、與(yu)操作人員的**距離，被試品的外(wai)殼是否可(ke)靠接地，要按**規程中(zhong)所規定的內容進行(xing)試驗。

3）對于大電容量設備(bei)應(ying)緩慢升壓(ya)，防(fang)止被試品的(de)充電電流燒壞微(wei)安表。必(bi)要時應(ying)分級加壓(ya)，分別(bie)讀(du)取各級電壓(ya)下微(wei)安表的(de)穩定讀(du)數。

4）試(shi)驗過程中，應密(mi)切監(jian)視被試(shi)品、試(shi)驗裝置、微安(an)表，一旦發生擊穿、閃爍等異(yi)常現象(xiang)應立即(ji)降(jiang)壓(ya)，切斷電(dian)源，并查明原因，詳(xiang)細記錄。

5）試驗完畢，降壓，切斷電源后應將(jiang)被試品及試驗裝(zhuang)置本身充分放電。

四、WBTQSB-30KVA/150KV交流耐壓發生器注意事項

1、按(an)照您所進行的試驗接好(hao)工作(zuo)線路。試驗變(bian)壓(ya)器(qi)的外殼以及(ji)操作(zuo)系(xi)統的外殼必須可靠接地。試驗變(bian)壓(ya)器(qi)高壓(ya)繞(rao)組的X端(高壓(ya)尾)以及(ji)測量繞(rao)組的F端必須可靠接地。

2、做串級試(shi)驗(yan)時(shi)，**級、第(di)三級試(shi)驗(yan)變(bian)壓器的(de)(de)(de)低壓繞(rao)(rao)組的(de)(de)(de)X端，測量繞(rao)(rao)組的(de)(de)(de)F端以(yi)及高(gao)壓繞(rao)(rao)組的(de)(de)(de)X端(高(gao)壓尾)均接本級試(shi)驗(yan)變(bian)壓器的(de)(de)(de)外(wai)殼。**級、第(di)三級試(shi)驗(yan)變(bian)壓器的(de)(de)(de)外(wai)殼必須通(tong)過絕緣支架接地。

3、接通(tong)電源前(qian)，操作系統的(de)調壓(ya)器必須調到(dao)零(ling)位后(hou)方可(ke)接通(tong)電源，合閘，開始升壓(ya)。

4、從(cong)零開始均勻旋(xuan)轉調(diao)壓(ya)(ya)(ya)(ya)(ya)(ya)器手輪升(sheng)壓(ya)(ya)(ya)(ya)(ya)(ya)。升(sheng)壓(ya)(ya)(ya)(ya)(ya)(ya)方(fang)法(fa)有：快速升(sheng)壓(ya)(ya)(ya)(ya)(ya)(ya)法(fa)，即(ji)(ji)20s逐級升(sheng)壓(ya)(ya)(ya)(ya)(ya)(ya)法(fa)；慢速升(sheng)壓(ya)(ya)(ya)(ya)(ya)(ya)法(fa)，即(ji)(ji)60s逐級升(sheng)壓(ya)(ya)(ya)(ya)(ya)(ya)法(fa)；極慢速升(sheng)壓(ya)(ya)(ya)(ya)(ya)(ya)法(fa)供(gong)選用。電(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)從(cong)零開始按一定(ding)的(de)升(sheng)壓(ya)(ya)(ya)(ya)(ya)(ya)方(fang)式和速度上升(sheng)到(dao)您所(suo)需的(de)額定(ding)試驗電(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)的(de)75%后(hou)，在以(yi)每秒2%額定(ding)試驗電(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)的(de)速度升(sheng)到(dao)您所(suo)需的(de)額定(ding)電(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)，并(bing)密切(qie)注意(yi)測(ce)量(liang)儀表的(de)指(zhi)(zhi)示以(yi)及(ji)被試品的(de)情(qing)(qing)(qing)況(kuang)。升(sheng)壓(ya)(ya)(ya)(ya)(ya)(ya)過程(cheng)中(zhong)或試驗過程(cheng)中(zhong)如發(fa)現測(ce)量(liang)儀表的(de)指(zhi)(zhi)示及(ji)被試品情(qing)(qing)(qing)況(kuang)異常，應(ying)立即(ji)(ji)降壓(ya)(ya)(ya)(ya)(ya)(ya)，切(qie)斷電(dian)源(yuan)，查明情(qing)(qing)(qing)況(kuang)。

5、試驗完畢后，應在數秒內勻速的(de)將調壓器(qi)返回(hui)至(zhi)零(ling)位，然(ran)后切斷電(dian)源(yuan)。

6、本產(chan)品不得(de)超過額定(ding)參數使用(yong)。除試驗必(bi)須外，決不允許(xu)全電壓通電或斷電。

7、再升壓或耐壓試(shi)驗過程(cheng)中，如發現以下不正常情況時，應(ying)立即降壓，切斷電源(yuan)，停止試(shi)驗并(bing)查明原因(yin)。

⑴電壓表指針(zhen)擺動(dong)(或數(shu)字(zi)跳動(dong))很大

⑵電流表直線上(shang)升

被試品內有不(bu)正常的聲(sheng)音(yin)

8、圖1中第9項系壓力閥及壓力表，為(wei)長期關(guan)閉狀態。每6個月開閥一次(ci)，以檢(jian)查SF6壓力，應(ying)不小于0.2MPa(檢(jian)查壓力后立(li)即關(guan)閉閥門)，低于0.2MPa時(shi)應(ying)加(jia)SF6氣體，以增加(jia)氣絕緣。

9、耐(nai)壓實驗前后(hou)應測量(liang)被試設備的(de)絕(jue)緣電阻(zu)，檢(jian)查絕(jue)緣情況。

10、當試驗變(bian)壓器長期(qi)不使(shi)用時，應放(fang)置于通(tong)風(feng)、干燥、無(wu)陽光直射(she)的地方。

11、該產品不允(yun)許(xu)在高于(yu)45℃的溫(wen)度下長期存放、使用、放氣(qi)。

12、運(yun)輸搬(ban)運(yun)途中不得重力沖擊(ji)。

13、產品緊固件及壓(ya)力閥、壓(ya)力表不(bu)得(de)擅自松動。

14、使用本產品做高壓(ya)試(shi)驗時，出熟(shu)悉(xi)本說明書外，還必(bi)須(xu)嚴格(ge)執(zhi)行(xing)國家(jia)有(you)關標準(zhun)和操作(zuo)規程(cheng)。可參照GB311-83《高壓(ya)輸變設備的絕緣配合，高壓(ya)試(shi)驗技術(shu)》；《電氣設備預防性(xing)試(shi)驗規程(cheng)》等。

五、WBTQSB-30KVA/150KV交流耐壓發生器容量選擇

標(biao)稱(cheng)試驗(yan)變壓器容量Pn的確(que)定(ding)公式(shi)：Pn=kVn 2ωCt×10-9

式中：

Pn——標(biao)稱試驗變壓(ya)器容量(kVA)

Vn——試驗變壓器的額定輸出(chu)高(gao)壓的有效值(kV)

k ——**系數。k≥1，標(biao)稱電壓Vn≥1MV時(shi)，k=2；標(biao)稱電壓較低時(shi)，k值可取高一(yi)些。

Ct——被試品的電容量(pF)

ω——角頻(pin)(pin)率(lv)，ω=2πf， f——試(shi)驗電源的頻(pin)(pin)率(lv)

被試設(she)備的(de)電(dian)容量Ct可由交流電(dian)橋測出(chu)。Ct的(de)變化很大，

可由設(she)備(bei)的類型而定。

典型數據如下：

簡單的棒式(shi)或懸式(shi)絕緣子 ; 幾十微法