1.打開防爆風機(ji)電(dian)機(ji)接線盒蓋(gai)，用萬(wan)用表(biao)確認電(dian)機(ji)繞組無電(dian)壓(ya)。

2.在三相引線(xian)做好標記(ji)后取下(xia)電(dian)源(yuan)引線(xian)，將(jiang)電(dian)源(yuan)端(duan)的三相引線(xian)短接并(bing)接地，用(yong)白布保護好接頭。(注意(yi):拆卸前標記(ji)引線(xian))

3.防爆風機電機接線(xian)盒蓋和引線(xian)密封(feng)套的密封(feng)應無老化裂紋。

4.檢查(cha)防爆風(feng)機(ji)電機(ji)接(jie)線盒應干燥，清(qing)理盒內灰塵，并清(qing)理端子氧(yang)化層(ceng)。

5.防爆風機電(dian)(dian)機的電(dian)(dian)機引線(xian)應(ying)無損壞和老化(hua)。

6.用(yong)搖表測量三相(xiang)(xiang)對地(di)和(he)相(xiang)(xiang)間絕緣(yuan)電(dian)(dian)(dian)阻(zu)(電(dian)(dian)(dian)機接線盒只引出三相(xiang)(xiang)電(dian)(dian)(dian)流(liu)線時只測量對地(di)絕緣(yuan)電(dian)(dian)(dian)阻(zu))和(he)電(dian)(dian)(dian)源(yuan)線對地(di)絕緣(yuan)電(dian)(dian)(dian)阻(zu):應不小于1mω，并記(ji)錄(lu)在表2中。

7.用雙臂(bei)電(dian)橋(qiao)測量(liang)電(dian)機(ji)定子繞(rao)組(zu)(zu)的三相DC電(dian)阻，每(mei)相繞(rao)組(zu)(zu)的DC電(dian)阻之差(cha)不應超(chao)過4%；也可測量(liang)導線間的電(dian)阻，其差(cha)值不應超(chao)過2%，并(bing)記錄在相關資料中。

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德州凱億 賈  2022.12.16

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