三相异步电动机的铭牌数据为17KW，1460r/m，50hz，380v，32.5A，
\u7535\u5de5\u5b66\uff08\u4e0a\uff09\u7535\u5de5\u6280\u672f\u9898\u76ee\u3002\u4e00\u53f0\u4e09\u76f8\u5f02\u6b65\u7535\u52a8\u673a\u94ed\u724c\u6570\u636e\u5982\u4e0b\uff1a40KW\uff0c380V\uff0c1\u3001\u8f6c\u5dee\u7387Sn=\uff08n1-n\uff09/n1=(1500-1450)/1500=0.033
\u8f93\u5165\u529f\u7387P1=P/\u03b7=40/0.86=46.51KW
2\u3001In=P\u00f7\u221a3\u00f7U\u00d7cos\u03c6\u00f7\u03b7=40\u00f7\u221a3\u00f70.38\u00f70.85\u00f70.86=83.14A
Im=7\u00d783.14=581.98A
Tn=9550\u00d7P\u00f7n=9550\u00d740\u00f71450=263.45Nm
Tm=1.2\u00d7263.45=316.14Nm
3\u3001Y\u63a5\u542f\u52a8\u8f6c\u77e9\u4e3a1/3\u00d7Tm=1/3\u00d7316.14=105.38Nm\u5c0f\u4e8e\u989d\u5b9a\u8f6c\u77e9263.45Nm,\u6545\u4e0d\u80fd\u6ee1\u8f7d\u542f\u52a8\u3002
4\u3001\u5b9a\u5b50\u7ed5\u7ec4\u7535\u6d41=In/\u221a3=83.14/\u221a3=48A
\u989d\u5b9a\u7535\u6d41In=Pn/1.732/Un/cos\u03c6/\u03b7=40/1.732/0.38/0.9/0.9=75A
\u542f\u52a8\u7535\u6d41Iq=6In=6*75=450A
\u989d\u5b9a\u8f6c\u77e9Mn=9550*Pn/n=9550*40/1470=259.86Nm
\u542f\u52a8\u8f6c\u77e9Mq=1.2Mn=1.2*259.86=311,83Nm
\u6700\u5927\u8f6c\u77e9Mm=2Mn=2*259.86=519.72Nm
1\u3001\u56e0\u4e3a\u8f6c\u77e9\u548c\u7535\u538b\u7684\u5e73\u65b9\u6210\u6b63\u6bd4\uff0c250/259.86=0.96 U=\u221a0.962*380=0.98*380=372.4V
2\u3001\u5f53\u7535\u538b\u4e3a0.8\u500d\u65f6\uff0c\u8f6c\u77e9\u4e3a0.8²\u500d\uff0c\u5373\u4e3a\u539f\u6765\u768464%\uff0c311.83*0.64=199,57\uff1c250Nm\uff0c\u6545\u4e0d\u80fd\u542f\u52a8\u3002
3\u3001\u661f\u89d2\u542f\u52a8\u8f6c\u77e9\u4e3a\u539f\u542f\u52a8\u8f6c\u77e9\u76841/3\uff0c311.83/3=103.94Nm, 0.25*Mn=0.25*259.86=64.97Nm
0,45*Nm=0.45*259.86=116.94Nm \u6240\u4ee50.25\u500d\u53ef\u4ee5\u542f\u52a8\uff0c0.45\u500d\u4e0d\u80fd\u542f\u52a8\u3002
4\u3001\u542f\u52a8\u7535\u6d41=K²*Iq=0.64²*450=184.32A \u542f\u52a8\u8f6c\u77e9=K²Mq=0.64²*311.83=127.72Nm
额定转差率=(1500-1460)/1500=2.67%
绛旓細棰濆畾鏁堢巼=17/(380*32.5*1.732*0.88)=90.3 棰濆畾杞樊鐜=(1500-1460)/1500=2.67
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