J9九游会AG

技术文章
  • 三相异步电机的绕组接地 三(san)相异步(bu)电(dian)(dian)机(ji)的绕(rao)(rao)组接地  指绕(rao)(rao)组与(yu)贴心或与(yu)机(ji)壳(qiao)绝缘(yuan)破坏而造成(cheng)的接地。A、三(san)相异步(bu)电(dian)(dian)机(ji)故(gu)障现象  机(ji)壳(qiao)带电(dian)(dian)、控(kong)制线路失控(kong)、绕(rao)(rao)组短路发热,致(zhi)使电(dian)(dian)动(dong)机(ji)无法正常运行(xing)。B、三(san)相异步(bu)电(dian)(dian)机(ji)产(chan)生(sheng)原因  绕(rao)(rao)组受(shou)潮使绝缘(yuan)电(dian)(dian)阻下降(jiang);电(dian)(dian)动(dong)机(ji)长期(qi)过(guo)载运行(xing);...
    发布时间:2012-11-09 10:31 点击次数:1421 次
  • 交流电机同步和异步电机区别 交流(liu)电(dian)(dian)机(ji)(ji)同步(bu)和异步(bu)电(dian)(dian)机(ji)(ji)区别(bie)1、交流(liu)同步(bu)电(dian)(dian)机(ji)(ji):就(jiu)是(shi)转(zhuan)(zhuan)(zhuan)子(zi)是(shi)由永磁材料构(gou)成(cheng)(cheng),所(suo)以转(zhuan)(zhuan)(zhuan)动后,随着电(dian)(dian)机(ji)(ji)的定子(zi)旋(xuan)转(zhuan)(zhuan)(zhuan)磁场的变化(hua),转(zhuan)(zhuan)(zhuan)子(zi)也做响应频率(lv)的速(su)度变化(hua),而且转(zhuan)(zhuan)(zhuan)子(zi)速(su)度=定子(zi)速(su)度,所(suo)以称(cheng)“同步(bu)”。2、交流(liu)异步(bu)电(dian)(dian)机(ji)(ji):转(zhuan)(zhuan)(zhuan)子(zi)由感(gan)应线(xian)圈和材料构(gou)成(cheng)(cheng)。3、对(dui)...
    发布时间:2012-07-06 09:37 点击次(ci)数:2492 次(ci)