YD系列變極多速三相電動機(jī)是我國統(tǒng)一設(shè)計(jì)的Y2系列電動機(jī)的派生系列之一，具有性能優(yōu)良，外形美觀，與國外同類產(chǎn)品有較好的互換性等優(yōu)點(diǎn)。防護(hù)等級為IP44.

     本電機(jī)有二速、三速、四速三種類型,其轉(zhuǎn)速可逐級變換。適用于機(jī)械、礦山、冶金、紡織、印染、化工、農(nóng)械等需要分級變速的設(shè)備上，也可簡化或代替機(jī)械傳動中的齒輪減速箱。

本系列的外形及安裝尺寸與Y2系列相同。

YD series three-pahse multi-speed induction motors are one of the derived series of Y2 series induction motors of our national uniform design, it have following features: excellent performance, attractive appearance and good interchangeability for the same kind of products aborad. The protection class IP44.

The motors are designed in three types: double speed, three speed and four speed. These speed rotes can be changed in stages. The motors are widely used on applications in the equipments where the changed rates in stages are needed, such as mechanism, mine, metallurgy, textiles, printing and dyeing, chemical industry, agricultural etc. They can also simplify or take the place of reducting gearbox in the mechanical drive lines.