高電壓技術High Voltage Technology
◎產品概述:
能(neng)開展各種高(gao)壓電(dian)氣(qi)設備試(shi)驗,如:局部放(fang)電(dian)測試(shi)(球-針-板)、沖擊耐壓試驗、絕(jue)緣(yuan)電(dian)阻和吸收比(bi)的測(ce)量、泄漏電(dian)流(liu)及直流(liu)耐壓(ya)試驗、介質損失角(jiao)正切值tgδ的測量、交直流耐壓試驗等)……
◎教學要點:
◆氣(qi)體放電的(de)物理過程:氣體中帶電(dian)(dian)(dian)質(zhi)點的(de)(de)產(chan)生和消(xiao)失、湯遜理論和巴申定理、流注定理、不均勻電(dian)(dian)(dian)場中的(de)(de)放電(dian)(dian)(dian)過程、沖擊電(dian)(dian)(dian)壓下氣體間隙的(de)(de)擊穿(chuan)特性;
影(ying)(ying)響氣體(ti)放電(dian)(dian)電(dian)(dian)壓(ya)(ya)(ya)的(de)(de)因素(su):電(dian)(dian)場形成對放電(dian)(dian)電(dian)(dian)壓(ya)(ya)(ya)的(de)(de)影(ying)(ying)響、電(dian)(dian)壓(ya)(ya)(ya)波形對放電(dian)(dian)電(dian)(dian)壓(ya)(ya)(ya)的(de)(de)影(ying)(ying)響、氣體(ti)的(de)(de)性質(zhi)和狀(zhuang)態對放電(dian)(dian)電(dian)(dian)壓(ya)(ya)(ya)的(de)(de)影(ying)(ying)響
沿(yan)(yan)面(mian)放(fang)電(dian):影響沿(yan)(yan)面(mian)放(fang)電(dian)電(dian)壓的因(yin)素、提高沿(yan)(yan)面(mian)放(fang)電(dian)電(dian)壓的措施。
◆液體和固體的絕緣強度
介質的(de)極化(hua)、電導和損(sun)耗;液體(ti)介質的(de)擊穿機(ji)理;
影響(xiang)液體介質(zhi)擊穿的因素和改進(jin)措(cuo)施。
◆電氣設備絕緣試驗
絕(jue)緣電阻及吸收比的測量;泄漏電流的(de)測量;介(jie)質損耗角正切的(de)測(ce)量;
工頻交(jiao)流耐壓(ya)試驗;直流耐壓(ya)試驗(yan);沖(chong)擊(ji)高壓試驗;
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