異步電動機

1、戶內、戶外防腐防爆異步電動機 環(huán)境技術要求 (機座號 45710) 537 1999 國家機械工業(yè)局 1999 08 06 批準 2000 01 01 實施 前 言 本標準是對 03 89戶內、戶外防腐防爆異步電動機環(huán)境技術要求 (機座號 46 710)進行的修訂。 修訂后的 537 1999 的技術內容與 04 003 89 基本一致。按 T 1 11993、 T 1 3 1997，增加了前言、引用標準，對本標準的編寫格式作了調整，并 對不宜強制執(zhí)行的內容，如 4 6 條關于防腐防爆電動機表面涂漆工藝的規(guī)定予以刪除。 本標準自實施之日起代替 04 003 89。 本標準由廣州電器科學研究所提出并歸口。 本標準由廣州。

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7、購買設計文檔后加 費領取圖紙 購買設計文檔后加 費領取圖紙 畢業(yè)設計說明書 論文題目：三相異步電動機的正反轉及順序控制電路的設計 系 部： 專 業(yè)： 班 級： 學生姓名： 學 號： 指導教師： 2016年 3月 18日 購買設計文檔后加 費領取圖紙 購買設計文檔后加 費領取圖紙 I 目 錄 摘要 . 緒論。

8、http:/www.china-gczx.com三相異步電動機項目可行性研究報告 （用途:發(fā)改委甲級資質、立項、 審批、 備案、申請資金、節(jié)能評估等 ） 版權歸屬： 中國項目工程咨詢網 www.china-gczx.com 編制工程師： 范兆文 【 微信公眾號 】：中國項目工程咨詢網 或 xmkxxyjbg http:/www.china-gczx.com/ - 2 -項目可行性研究報告 簡稱可研，是在制訂生產、基建、科研計劃的前期，通過全面的調查研究，分析論證某個建設或改造工程、某種科學研究、某項商務活動切實可行而提出的一種書面材料。 項目可行性研究報告主要是通過對項目的主要內容和配套條件，。

9、http:/www.china-gczx.com三相異步電動機項目可行性研究報告 （用途:發(fā)改委甲級資質、立項、 審批、 備案、申請資金、節(jié)能評估等 ） 版權歸屬： 中國項目工程咨詢網 www.china-gczx.com 編制工程師： 范兆文 【 微信公眾號 】：中國項目工程咨詢網 或 xmkxxyjbg http:/www.china-gczx.com/ - 2 -項目可行性研究報告 簡稱可研，是在制訂生產、基建、科研計劃的前期，通過全面的調查研究，分析論證某個建設或改造工程、某種科學研究、某項商務活動切實可行而提出的一種書面材料。 項目可行性研究報告主要是通過對項目的主要內容和配套條件，。

10、,變頻器的輸出電壓大小與頻率大小是同步對應調整，電動機從靜止開始起動，其過程頻率由低調到高，起動時頻率低電抗值小，起動電壓低，利用低頻起動具有,.,既可以提高起動力矩，又可以降低起動電流的優(yōu)點，所以轉子槽可以設計大一點，降低轉子導條電阻，減小轉子銅耗，繞組的匝數(shù)繞組系數(shù)繞組相數(shù)極數(shù)等是不,.,變值，變頻器的輸出電壓大小和頻率是同步對應調整，氣隙磁通中基本也不變，變頻調速保持電機的力能指標刀基本不變，則電機的線負荷也基本不變，由變頻,.,器輸出電壓作為變頻調速異步電動機的輸入電源，當恒轉矩負載時，電動機的輸。