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id="8tvcjgn" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/21/9/637099267873748132_lcdianji_9430804.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="2oqszr3" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/21/9/637099267873748132_lcdianji_9430804.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ymovnpo" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>山東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產品關鍵詞：</span>天津中型電機維修</p><p><span>***更新：</span>2020-06-08 09:05:35</p><p><span id="click" >瀏覽次數(shù)：5次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="pegif8z" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">山東聯(lián)創(chuàng)電機有限公司</a></p><p><span>聯(lián)系人：</span>李道松</p><p><span>郵箱: </span>505920191@qq.com</p><p><span>電話: </span>13906437131</p><p><span>傳真: </span>0533_7781170</p><p><span>網址: </span></p><p><span>手機: </span>0533-7788099</p><p><span>地址: </span>山東省淄博市臨淄區(qū)朱臺鎮(zhèn)魏家村</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="jnur3he" class="page-proshow02"><p class="title">詳細說明</p><div id="wqif8b8" class="box"><p><p style="text-indent:25px">三相異步電機（Triple-phase asynchronous motor）是感應電動機的一種，是靠同時接入380V三相交流電流（相位差120度）供電的一類電動機，由于三相異步電動機的轉子與定子旋轉磁場以相同的方向、不同的轉速成旋轉，天津中型電機維修，存在轉差率，所以叫三相異步電動機。三相異步電動機轉子的轉速低于旋轉磁場的轉速，轉子繞組因與磁場間存在著相對運動而產生電動勢和電流，并與磁場相互作用產生電磁轉矩，實現(xiàn)能量變換。與單相異步電動機相比，三相異步電動機運行性能好，并可節(jié)省各種材料。按轉子結構的不同，三相異步電動機可分為籠式和繞線式兩種。籠式轉子的異步電動機結構簡單、運行可靠，天津中型電機維修、重量輕、價格便宜，得到了普遍的應用，其主要缺點是調速困難。繞線式三相異步電動機的轉子和定子一樣也設置了三相繞組并通過滑環(huán)，天津中型電機維修、電刷與外部變阻器連接。調節(jié)變阻器電阻可以改善電動機的起動性能和調節(jié)電動機的轉速。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津中型電機維修" src="http://tyunfile.71360.com/UpLoadFile/2019/11/21/9/637099267873748132_lcdianji_9430804.jpg"></div><p style="text-indent:25px">當向三相定子繞組中通入對稱的三相交流電時，就產生了一個以同步轉速n1沿定子和轉子內圓空間作順時針方向旋轉的旋轉磁場。由于旋轉磁場以n1轉速旋轉，轉子導體開始時是靜止的，故轉子導體將切割定子旋轉磁場而產生感應電動勢（感應電動勢的方向用右手定則判定）。由于轉子導體兩端被短路環(huán)短接，在感應電動勢的作用下，轉子導體中將產生與感應電動勢方向基本一致的感生電流。轉子的載流導體在定子磁場中受到電磁力的作用（力的方向用左手定則判定）。電磁力對轉子軸產生電磁轉矩，驅動轉子沿著旋轉磁場方向旋轉。通過上述分析可以總結出電動機工作原理為：當電動機的三相定子繞組（各相差120度電角度），通入三相對稱交流電后，將產生一個旋轉磁場，該旋轉磁場切割轉子繞組，從而在轉子繞組中產生感應電流（轉子繞組是閉合通路），載流的轉子導體在定子旋轉磁場作用下將產生電磁力，從而在電機轉軸上形成電磁轉矩，驅動電動機旋轉，并且電機旋轉方向與旋轉磁場方向相同。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津中型電機維修" src="http://tyunfile.71360.com/UpLoadFile/2019/11/21/9/637099267931114353_lcdianji_7380131.jpg"></div><p> 電動機故障的原因有：電源斷相、電壓或頻率不對；繞組短路、斷路、接地；軸承運轉不良；內、外部臟，散熱不好（外部涂油漆太厚也是散熱不好的原因），和自帶冷卻風扇壞，通風不暢；與機械裝備不良；長期高負荷運行；環(huán)境溫度高等等。90%以上都是日常管理檢查不細，電機維護保養(yǎng)不足造成的。電動機是日常生產中比不可少的設備之一，因此，它的日常維護就顯得相當?shù)闹匾ｋ妱訖C由定子架、繞組及絕緣材料、轉子、兩端軸承及端蓋等組成，比較簡單。電動機故障的原因有：電源斷相、電壓或頻率不對；繞組短路、斷路、接地；軸承運轉不良；內、外部臟，散熱不好（外部涂油漆太厚也是散熱不好的原因），和自帶冷卻風扇壞，通風不暢；與機械裝備不良；長期高負荷運行；環(huán)境溫度高等等。電動機的損壞，90%以上都是維修人員日常檢查不細，維護保養(yǎng)不足造成的，只要堅持認真看、聽、摸、測、做，絕大多數(shù)故障都可以預防和避免，減少公司備件和修理費用的損失。 <p> <br /> </p> </p> <p> <br /> </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津中型電機維修" src="http://tyunfile.71360.com/UpLoadFile/2019/11/21/9/637099268012171294_lcdianji_6531962.jpg"></div></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/188673.html</p></div></div></div></div></div><div id="y7wdfcj" class="page-right twoColRt"><div id="slxzwn7" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="z2el8gi" class="recomPic likePro"><a 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