1746-IC16    1746-IC16

什么是轉(zhuǎn)差率：電動(dòng)機(jī)旋轉(zhuǎn)磁場(chǎng)轉(zhuǎn)速n1與轉(zhuǎn)子實(shí)際轉(zhuǎn)速n之差（n1-n）稱為旋轉(zhuǎn)差，轉(zhuǎn)速差與同步轉(zhuǎn)速之比的百分比叫做轉(zhuǎn)差率，用符號(hào)S表示。轉(zhuǎn)差率計(jì)算公式為：

【公　司】： 廈門泰尼電氣有限公司
【主　營(yíng)】： AB、GE、施耐德等各類PLC產(chǎn)品
【價(jià)　格】： 電議
【發(fā)布人】： 張亮
【電  話】： 18030028083
【所在地】： 福建 - 廈門
【座　機(jī)】： 0592-6809819
【來　源】： 供應(yīng)信息 > 電工、電氣 > PLC
【Q　  Q】： 2314094943

S=（n1-n）/n1×100%。

轉(zhuǎn)差率是異步電動(dòng)機(jī)的一個(gè)重要參數(shù)，習(xí)慣上用轉(zhuǎn)差率的大小來說明電動(dòng)機(jī)的運(yùn)行速度。電動(dòng)機(jī)空載時(shí)轉(zhuǎn)差率很小，即轉(zhuǎn)子的轉(zhuǎn)速接近同步轉(zhuǎn)速。隨著負(fù)載的增加，轉(zhuǎn)差率也增大。就是說，轉(zhuǎn)子的轉(zhuǎn)差速隨負(fù)載而變。三相異步電動(dòng)機(jī)的額定負(fù)載運(yùn)行時(shí)，其轉(zhuǎn)差率很小，約為2%~6%。

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