描述
三相電機在一般機械電氣設(shè)備使用最廣,對一臺電機來說,如何判定其是否是好的,我們要借助一些儀表和工具來進(jìn)行檢測。首先觀察外觀,如果外觀沒問題,軸能正常轉(zhuǎn)動無卡滯就進(jìn)行下面的檢查了。
1、用絕緣電阻表測量電機繞組的對接地端(或外殼)的絕緣電阻,至少要有0.5兆歐以上,如果沒有說明線圈已短路了;2、用萬用表測量電機繞組的直流電阻,各相直流電阻偏差值不大于2%,如果是三角接法,建議將并聯(lián)的短接片拆除檢測;3、上述兩項都沒有問題,通電試運行,觀察有沒有異常響聲,有無卡阻現(xiàn)象等。
當(dāng)各種機床,動力設(shè)備出現(xiàn)故障時,除了查看電器線路還要檢查電機,下面電工學(xué)習(xí)網(wǎng)小編給大家介紹如何使用數(shù)字萬用表來檢測電機工作是否正常。
1、測量三相繞組的電阻值:上虞東星精于減速電機,電機。如果是星形接法的電機,可直接測量U1、V1、W1與共接端U2、V2、W2進(jìn)行測量;如果是三角形接法的電機,則要去除連接片,再測量U1與U2,V1與V2,W1與W2之間的電阻值,測量得出的三相繞組電阻值相近則為好的,相差太大或無窮大則為壞的。
2、絕緣測量:新電機的絕緣阻值應(yīng)大于2兆歐,可用R*10K電阻檔測量和外殼的絕緣電阻,其阻值越大則絕緣越好。最好還是用兆歐表進(jìn)行測量更為直接。
我們這里有您急需的停產(chǎn)備件,
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歡迎來電詢價,我們將會給您最優(yōu)惠的價格!
主營:世界知名品牌的PLC、DCS系統(tǒng)備件模塊
①Allen-Bradley(美國AB)系列產(chǎn)品》
②Schneider(施耐德電氣)系列產(chǎn)品》
③General electric(通用電氣)系列產(chǎn)品》
④Westinghouse(美國西屋)系列產(chǎn)品》
⑤SIEMENS(西門子系列產(chǎn)品)》
⑥銷售ABB Robots.FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、PanasonicRobots、MOTOMAN Robots。
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⑧Invensys Foxboro(??怂共_):I/A Series系統(tǒng),F(xiàn)BM(現(xiàn)場輸入/輸出模塊)
順序控制、梯形邏輯控制、事故追憶處理、數(shù)模轉(zhuǎn)換、輸入/輸出信號處理、數(shù)
據(jù)通信及處理等。Invensys Triconex:冗余容錯控制系統(tǒng)、基于三重模件冗余(TMR)
結(jié)構(gòu)的zui現(xiàn)代化的容錯控制器。
⑨Siemens(西門子):Siemens MOORE,Siemens Simatic C1,Siemens數(shù)控系統(tǒng)等。
⑩Bosch Rexroth(博世力士樂):Indramat,I/O模塊,PLC控制器,驅(qū)動模塊等。
◆Motorola(摩托羅拉):MVME 162、MVME 167、MVME1772、MVME177等系列。
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