絕(jue)緣電(dian)阻(zu)機(ji)(ji)能(neng)是(shi)權衡無(wu)刷機(ji)(ji)電(dian)繞線機(ji)(ji)品德(de)的(de)主要目標(biao)之一(yi),若是(shi)絕(jue)緣電(dian)阻(zu)不不變便(bian)能(neng)夠(gou)會毀傷到無(wu)刷機(ji)(ji)電(dian)。在查抄無(wu)刷機(ji)(ji)電(dian)的(de)絕(jue)緣機(ji)(ji)能(neng)的(de)時辰,最好的(de)方(fang)法是(shi)經由進程絕(jue)緣耐壓實驗實現,而罕見的(de)便(bian)是(shi)對(dui)設備機(ji)(ji)殼和繞組彼此間的(de)絕(jue)緣實驗。
無(wu)刷(shua)機(ji)電繞(rao)(rao)線(xian)機(ji)的繞(rao)(rao)組之間絕(jue)緣(yuan)強度實(shi)驗(yan)也便是(shi)繞(rao)(rao)組超壓實(shi)驗(yan)。在實(shi)驗(yan)進(jin)程(cheng)傍邊,停止測試(shi)的繞(rao)(rao)組電壓會(hui)(hui)比一(yi)般增添1.3倍,并且保(bao)持3分鐘。若是(shi)無(wu)刷(shua)機(ji)電之前已(yi)運轉過,或是(shi)繞(rao)(rao)組絕(jue)緣(yuan)部(bu)分改換過的無(wu)刷(shua)機(ji)電繞(rao)(rao)線(xian)機(ji)的實(shi)驗(yan)時辰能夠延長(chang)至1分鐘。品德優的無(wu)刷(shua)機(ji)電繞(rao)(rao)線(xian)機(ji)是(shi)能夠經由進(jin)程(cheng)這(zhe)個高電壓實(shi)驗(yan)的,并且繞(rao)(rao)組匝間絕(jue)緣(yuan)不會(hui)(hui)產生毛病或擊穿景象。
機電(dian)(dian)接納的(de)是交換(huan)電(dian)(dian)流的(de)時(shi)(shi)辰,絕(jue)緣實(shi)(shi)驗必須在空載運轉(zhuan)(zhuan)(zhuan)的(de)情(qing)況下展開(kai)(kai)。繞線(xian)(xian)轉(zhuan)(zhuan)(zhuan)子(zi)(zi)三相異步(bu)機電(dian)(dian),做此實(shi)(shi)驗時(shi)(shi)應(ying)(ying)把轉(zhuan)(zhuan)(zhuan)子(zi)(zi)線(xian)(xian)圈開(kai)(kai)路,在轉(zhuan)(zhuan)(zhuan)子(zi)(zi)運動(dong)不動(dong)時(shi)(shi)停(ting)止(zhi)。這時(shi)(shi)候轉(zhuan)(zhuan)(zhuan)子(zi)(zi)線(xian)(xian)圈所感到的(de)電(dian)(dian)壓也將高(gao)于其(qi)額(e)外(wai)(wai)電(dian)(dian)壓30%.如(ru)許就同吋實(shi)(shi)驗了轉(zhuan)(zhuan)(zhuan)子(zi)(zi)線(xian)(xian)圈的(de)匝(za)間絕(jue)緣。對多(duo)速(su)機電(dian)(dian)來講(jiang),應(ying)(ying)答每額(e)外(wai)(wai)轉(zhuan)(zhuan)(zhuan)速(su)的(de)繞組(zu)停(ting)止(zhi)實(shi)(shi)驗。若為單(dan)一(yi)繞組(zu)時(shi)(shi),可僅對其(qi)最大轉(zhuan)(zhuan)(zhuan)速(su)接線(xian)(xian)體例停(ting)止(zhi)實(shi)(shi)驗。
須(xu)要停止超(chao)速(su)實驗的機(ji)電(dian),該實驗必(bi)須(xu)在超(chao)速(su)實驗以后(hou)停止。匝間絕(jue)緣實驗中,若匝間被(bei)擊穿,損(sun)害處將(jiang)會發燒,偶然另有焦味(wei)、冒(mao)煙(yan)、三相電(dian)流不均衡(heng),可按(an)照這(zhe)些景象判定匝間絕(jue)緣情況。實驗電(dian)壓(ya)(ya)(ya)可由變壓(ya)(ya)(ya)器(qi)或電(dian)壓(ya)(ya)(ya)調劑(ji)器(qi)獲(huo)得(de)。
當對直流(liu)機(ji)電匝間絕緣實(shi)驗實(shi)驗時(shi),增添外(wai)施(shi)電壓的同時(shi)也要增添其轉(zhuan)速(su),可是(shi)轉(zhuan)速(su)不(bu)能超越它的最好運(yun)轉(zhuan)速(su)率(lv)或是(shi)額外(wai)轉(zhuan)速(su)的115%。而四極以上的直流(liu)機(ji)電進(jin)步的實(shi)驗電壓應使(shi)相鄰(lin)換向片間的電壓不(bu)跨越24V為(wei)前(qian)提。
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