描述

異步電機(jī)又叫感應(yīng)電機(jī)，轉(zhuǎn)子上的電磁場(chǎng)是通過(guò)定子磁場(chǎng)感應(yīng)出來(lái)的。同步電機(jī)轉(zhuǎn)子上要有自帶的磁場(chǎng)。

異步電機(jī)的轉(zhuǎn)速會(huì)隨負(fù)載的不同，略有改變，而且這個(gè)轉(zhuǎn)速是低于定子磁場(chǎng)的轉(zhuǎn)速的，所以才叫異步電機(jī)。同步電機(jī)轉(zhuǎn)速嚴(yán)格的按定子磁場(chǎng)轉(zhuǎn)速旋轉(zhuǎn)，所以叫同步電機(jī)。

異步電動(dòng)機(jī)可以直接啟動(dòng)。同步電動(dòng)機(jī)要有專(zhuān)門(mén)的啟動(dòng)裝置或者啟動(dòng)繞組，所以制造工藝復(fù)雜，造價(jià)高。

異步電機(jī)一般用來(lái)做電動(dòng)機(jī)，同步電機(jī)一般用來(lái)做發(fā)電機(jī)，也用來(lái)做補(bǔ)償機(jī)。

1，同步與異步的最大區(qū)別就在于看他門(mén)的轉(zhuǎn)子速度是不是與定子旋轉(zhuǎn)的磁場(chǎng)速度一致，如果轉(zhuǎn)子的旋轉(zhuǎn)速度與定子是一樣的，那就叫同步電動(dòng)機(jī)，如果不一致，就叫異步電動(dòng)機(jī)。。。

2，當(dāng)極對(duì)數(shù)一定時(shí)，電機(jī)的轉(zhuǎn)速和頻率之間有嚴(yán)格的關(guān)系，用電機(jī)專(zhuān)業(yè)術(shù)語(yǔ)說(shuō)，就是同步。異步電機(jī)也叫感應(yīng)電機(jī)，主要作為電動(dòng)機(jī)使用，其工作時(shí)的轉(zhuǎn)子轉(zhuǎn)速總是小于同步電機(jī)。

:3所謂“同步”就是電樞（定子）繞組流過(guò)電流后，將在氣隙中形成一旋轉(zhuǎn)磁場(chǎng)，而該磁場(chǎng)的旋轉(zhuǎn)方向及旋轉(zhuǎn)速度均與轉(zhuǎn)子轉(zhuǎn)向，轉(zhuǎn)速相同，故為同步。異步電機(jī)的話，其旋轉(zhuǎn)磁場(chǎng)與轉(zhuǎn)子存在相對(duì)轉(zhuǎn)速，即產(chǎn)生轉(zhuǎn)距。

歐美品牌停產(chǎn)的，常用的“PLC”備品備件

我司產(chǎn)品應(yīng)用于以下領(lǐng)域：

1,《發(fā)電廠DCS監(jiān)控系統(tǒng)》

2,《智能平鋼化爐系統(tǒng)制造》

3,《PLC可編程輸送控制系統(tǒng)》

4,《DCS集散控制系統(tǒng)》
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5,《智能型消防供水控制系統(tǒng)》

6,《化工廠藥液恒流量計(jì)算機(jī)控制系統(tǒng)》

7,《電氣控制系統(tǒng)》造紙,印染生產(chǎn)線,變電站綜合自動(dòng)化控制系列

本特利，英維思，伍德沃德，?？怂共_、西屋、瑞恩、施耐德莫迪康、ABB、AB、西門(mén)子、摩托羅拉、GE發(fā)那科、安川、博世力士樂(lè)，ACSO，力士樂(lè)等各大品牌的DCS系統(tǒng)配件，機(jī)器人系統(tǒng)配件，大型伺服系統(tǒng)備件。

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