適用于:風(fēng)機(jī)、泵類負(fù)載要求調(diào)速運(yùn)行的場(chǎng)合。Applications:Specificallyengineeredforuseonpumps,fansandsuchinstrumenttoobtainsuitablematchingofoutputpowerandspeed.特點(diǎn):有級(jí)調(diào)速,電機(jī)功率與風(fēng)機(jī)、泵類負(fù)載合理匹配,使系統(tǒng)效率提高,是風(fēng)機(jī)、泵類的專用電機(jī)。Features:havestepchangesofrotationalspeedtomeettherequirementsofloadcharacter.Simplifyspeed-changingsystems.變極方案:2/4、4/6、4/8、6/8、4/6/8Pole-changingmode:doubleorthreespeed