一台Z4系列他励电动,UaN=440V,IaN=190A,nN=1500r/min（求解答过程） 有一台他励直流电动机，已知Un=220v,In=53.8A，...
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\uff081\uff09\u76f4\u63a5\u542f\u52a8\u7535\u6d41=Un/Ra=220/0.7=314A\uff1b\u542f\u52a8\u7535\u963b=Un/2In-Ra=220/2*53.8-0.7=1.34\u03a9\u3002
\uff082\uff09\u7a33\u5b9a\u540e\u7684\u8f6c\u901f=1500/2=750r/min\u3002
KФ=（UaN-Ra*IaN）/nN=（440-0.24*190）1500=0.263
n0=UaN/（KФ）=1673.6
本题目的是为了复习他励电动机的人为特性。
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绛旓細K肖=锛圲aN-Ra*IaN锛/nN=锛440-0.24*190锛1500=0.263 n0=UaN/锛圞肖锛=1673.6
绛旓細浠栧姳鐩存祦鐢靛姩鏈,PN=5.5kw,UaN=160V,IaN=47.1A,nN=1520r/mid.璧峰姩鐢垫祦闄愬畾涓洪瀹氬肩殑2鍊,鍒欓檷鍘嬭捣鍔ㄦ椂鐢垫灑鐢靛帇搴斾负___V,閲囩敤鐢垫灑缁曠粍涓茬數闃昏捣鍔ㄦ椂,璧峰姩鐢甸樆搴斾负___娆у銆... 浠栧姳鐩存祦鐢靛姩鏈,PN=5.5kw,UaN=160V,IaN=47.1A,nN=1520r/mid.璧峰姩鐢垫祦闄愬畾涓洪瀹氬肩殑2鍊,鍒欓檷鍘嬭捣鍔ㄦ椂鐢垫灑鐢靛帇搴斾负___V,...
绛旓細銆愮瓟妗堛戯細鏈鐩殑鏄负浜嗗涔浠栧姳鍙戠數鏈恒俇0=EN=UaN+RaIaN=(230+0.2脳100)V=250V$褰撐﹀噺灏10%鏃禘=0.9EN=0.9脳250V=225V婊¤浇鐢靛帇Ua=E-RaIaN=(225-0.2脳100)V=205V
