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电机定转子电动机功率选择

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电机定转子电动机功率选择

发布日期:2018-09-02 作者:实日机电 点击:

要正确选择电机定转子电动机的功率,必须经过以下计算或比较:

开心彩票网(1)DUIYUHENGDINGFUZAILIANXUGONGZUOFANGSHI,RUGUOZHIDAOFUZAIDEGONGLV(JISHENGCHANJIXIEZHOUSHANGDEGONGLV)Pl(kw).KEANXIASHIJISUANSUOXUDIANDONGJIDEGONGLVP(kw):

开心彩票网P=P1/n1n2SHIZHONG n1WEISHENGCHANJIXIEDEXIAOLV;n2WEIDIANDONGJIDEXIAOLV。JICHUANDONGXIAOLV。

开心彩票网ANSHANGSHIQIUCHUDEGONGLV,BUYIDINGYUCHANPINGONGLVXIANGTONG。YINCI.SUOXUANDIANDONGJIDEEDINGGONGLVYINGDENGYUHUOSHAODAYUJISUANSUODEDEGONGLV。

LI:MOUSHENGCHANJIXIEDEGONGLVWEI3.95kw.JIXIEXIAOLVWEI70%、RUGUOXUANYONGXIAOLVWEI0.8DEDIANDONGJI,SHIQIUGAIDIANDONGJIDEGONGLVYINGWEIDUOSHAOkw?

开心彩票网JIE:P=P1/ n1n2=3.95/0.7*0.8=7.1kw

YOUYUMEIYOU7.1kwZHEI—GUIGE.SUOYIXUANYONG7.5kwDEDIANDONGJI。

(2)DUANSHIGONGZUODINGEDEDIANDONGJI.YUGONGLVXIANGTONGDELIANXUGONGZUODINGEDEDIANDONGJIXIANGBI.ZUIDAZHUANJUDA,ZHONGLIANGXIAO,JIAGEDI。YINCI,ZAITIAOJIANXUKESHI,YINGJINLIANGXUANYONGDUANSHIGONGZUODINGEDEDIANDONGJI。

(3)DUIYUDUANXUGONGZUODINGEDEDIANDONGJI,QIGONGLVDEXUANZE、YAOGENJUFUZAICHIXULVDEDAXIAO,XUANYONGZHUANMENYONGYUDUANXUYUNXINGFANGSHIDEDIANDONGJI。FUZAICHIXUCHUANFs%DEJISUANGONGSHIWEIFS%=tg/(tg+to)×100%SHIZHONG tgWEIGONGZUOSHIJIAN,t。WEITINGZHISHIJIANmin;tgSHItoWEIGONGZUOZHOUQISHIJIANmin。

开心彩票网CIWAI.YEKEYONGLEIBIFALAIXUANZEDIANJIDINGZHUANZIDIANDONGJIDEGONGLV。SUOWEILEIBIFA。JIUSHIYULEISISHENGCHANJIXIESUOYONGDIANDONGJIDEGONGLVJINXINGDUIBI。JUTIZUOFASHI:LEJIEBENDANWEIHUOFUJINQITADANWEIDELEISISHENGCHANJIXIESHIYONGDUODAGONGLVDEDIANDONGJI,RANHOUXUANYONGXIANGJINGONGLVDEDIANDONGJIJINXINGSHICHE。SHICHEDEMUDESHIYANZHENGSUOXUANDIANDONGJIYUSHENGCHANJIXIESHIFOUPIPEI。YANZHENGDEFANGFASHI:SHIDIANDONGJIDAIDONGSHENGCHANJIXIEYUNZHUAN,YONGQIANXINGDIANLIUBIAOCELIANGDIANDONGJIDEGONGZUODIANLIU,JIANGCEDEDEDIANLIUYUGAIDIANDONGJIMINGPAISHANGBIAOCHUDEEDINGDIANLIUJINXINGDUIBI。RUGUODIANGONGJIDESHIJIGONGZUODIANLIUYUMINGPISHANGBIAOCHUDEEDINGDIANLIUSHANGXIAXIANGCHABUDA.ZEBIAOMINGSUOXUANDIANDONGJIDEGONGLVHESHI。RUGUODIANDONGJIDESHIJIGONGZUODIANLIUBIMINGPAISHANGBIAOCHUDEEDINGDIANLIUDI70%ZUOYOU.ZEBIAOMINGDIANDONGJIDEGONGLVXUANDEGUODA(JI“DAMALAXIAOCHE”YINGDIAOHUANGONGLVJIAOXIAODEDIANDONGJI。RUGUOCEDEDEDIANDONGJIGONGZUODIANLIUBIMINGPAISHANGBIAOCHUDEEDINGDIANLIUDA40%YISHANG.ZEBIAOMINGDIANDONGJIDEGONGLVXUANDEGUOXIAO(JI"XIAOMALADACHE"),YINGDIAOHUANGONGLVJIAODADEDIANDONGJI.

BIAO:

FUZAIQINGKUANG KONGZAI 1/4FUZAI 1/2FUZAI 3/4FUZAI MANZAI

开心彩票网GONGLVYINSHU 0.2 0.5 0.77 0.85 0.89

XIAOLV 0 0.78 0.85 0.88 0.895

开心彩票网WENLINGSHIDONGYAODIANJIYOUXIANGONGSIZHUANYESHENGCHANDIANJIDINGZHUANZI。


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