华科大辜承林主编《电机学》课后习题答案

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21(2)E«t7=110E=4.44xজ=z={|z=4.955xIO"}3.43ᨵAᓫᘤ#=ioom,ᵯ//஺2#=6000/230V,/=50"z஺!ḄᵯO`ᵯᢙḄᦪn/?,=4.32QkR=0.0063஺kᓃ=8.9஺kX=0.013Q,bc2a1ᢚᑮḄjᵯR*ஹjᵯᢙX*jᢙZ&k2ᢚᑮ$ḄjᵯRkஹjᵯᢙXkjᢙZk3@J☢Ḅgᦪᵨ᪗n⊤¡k4_ᘤḄᢙᵯᔜᑖk5c¤¥cos¨=1ஹcos%=0.8©Zcos¨=0.8ª«h¬
defḄ஻#9¯°±²³´µ஺1R2=/&=¶
2x0.063=4.287Q4=26.1%=·2%=260.013=8.8557஺*A=J&+ZR8=4.32+4.287=8.607Qx=x+¸2b=8.9+8.8557=17.457QkXaZ=V8.6072+17.4572=19.4670K2ᢚᑮ$º:ὡ=½=]=0Q063C%=¾=¿=S0131QR=R+&=0.0063+0.0063=0.0126Qkx=+À2஺=0.0131+0.013=0.026IQkZ=JR+XN=VO.OI262+O.O2612=0.029Qk3ᢙÁnZ.=^-=^-=⎀=360஺bl]NS%[NlX
xlO3&*=4%஺=0.012Rk=428%6஺=0.01191ᐔ=Ã=0.0247

22Xk=ᘵ=0.0246ᑍ=ᗞ=0.0239%k=◤=0.0485IoJ6UKJ6UK3OU2k=◤=0.05408(4)U=ZI=(8.607+jl7.457)xl6.667=143.33+J290.95kkiNLN=—=Æ=16.667A஻=Ç=ÈÉ}ÊË#ÌÍÎ஺••Uk=ZkAt/k=5.4%U=Hk=2.39%f/k=Xk=4.85%মAU=P(Rkcos02+Xksing):Ф¥p=\()cos(p=1sin(p=QAt/=0.0239x1=2.39%a22(b)cos᜛2=0-8(©Z)sin(p=0.62AU=1x(0.0239x0.8+0.0485x0.6)=4.822%(c)cos%=0-8(ª«)sin(p=-0.62AU=1x(0.0239x0.8-0.0485x0.6)=-0.968%ÒÓᵯឋOÕឋÖ¥ᵯᓄ᳛ÐØḄ#ᓽÖ¥ᵯ$ÚÛ¥ᵯ#ឋÖ¥ÊÜÐÖᦟᵯÚÛ¥ᵯ஺3.44ᨵAᓫᘤ#ÞUR|=2.19Q,X]°=15.4Q,R=0.150,2X2஺=0.964஺#R=1250Q,X=12600Q.=876B#N2=260BkmmßCOS*2=0-8(©Z)#ᵯV=1804,U=6000V,bc2(1)ᵨàá“p”ähᦔᵯjOåᓄhᦔᵯjc#ᓃ#9@°±²³æk(2)çYᢚZḄèO“T”ähᦔᵯj஺(1)ᦇ=êë=3.37k=Rk2=3.372x0.15=1.7035(Q)22åᓄhᦔᵯj

23Pä^u'=ïðᑣU=kU\O_¬3.3KV6000ð=20220[0_2I\=4=ᛞI-36.87஺=53.41|-36.87஺=42.728-j-32.046ù=2+(8+4+o஺=20200+(2.19+1.7035+k15.4+#10.948)x53.41|—36.87,=20220+(3.8935+j26.348)x53.41ü36.87"=20220+1422.52ý72஺=20220+1010.78+jl000.95=20220+1422.52|4஺72஺=20220+1010.78+J1000.95=21230.78+j1000.95=21254.36|2.699(V)/஺===—&—=1.67861-81.63=0.2443-jl.66070Z1250+/1260012661.85184.3J1------------------Jm[=[+A=0.2443-jl.6607+42.728-J32.046=42.9723-33.7067=54.615|-38.12(/,=21254(V)Z,=54.615(A)ᵨ#ᓄ%ᦔᵯ()t/=21254(V)(+,)/,=Z=53.41(A)(2-./0123ᵯ4+,3ᵯ5672.2%,9ᵨ#ᓄ%ᦔᵯ(:#ᓫ஺T=%ᦔᵯ(3.45>?@6,4ᘤ3YdllDE3/?,=2.19Q,X=15.4Q,R=0.15Q.1,T2X=0.964Q,,-I=3.37஺JᶍLMᵯ53NOᨵCOSQ2=0-8QRSTḄVWX,2aU=6000V,I=312A,:cos᜜஺22YU=20220Z[Uq=3129%*=53.411-36.872=21254|2.699(^_⚪).•.Q=&ᙢ=36812(V)/,==53A3A

24(pஹ=2.699-(-36.87)=40.82cos/=0.76(RS)3.46>?@6ᵯf,4ᘤ3ghᦪjk)S=1000m,U=10fcV,U=400VNlN2NYyDE஺ᙠp4qrᵯ4stu(vw3U=400V,=57.7A&=11.64W஺kv:)(1)u(yᦪ&ஹX*ஹZ«(2)N|,4ᘤO}=U55A,cos=0.8(RS)VWX3~4qᵯ4஺2஺(1):>6Ḅᱥᳮyᦪ3ᙠp4vw3+ᢚ==25%=%=230.95(V)&=57.74ভ%=%=3.867/W)4==23%=4(C)%==38%7=1.16(Q)4=u_ᵨ="2-1.162=3.83(C)(2)qE>)=ᔁ&=/=ᘤ=1443.42(A)᜛=Ꮈ=0.8}====57.74(A)=Z஻==99.992100R==0.0116b57.74K)bx==0.0383sin(p2=0.6A(7=0(R8cos%+X*sin^?)=0.8x(0.0116x0.8+0.0383x0.6)=0.025812¢U=1-£.•"0=(1-AUMwu2m="2%=4%=230.947(V)=(1-0.02581)x230.947=225(V)/•U==73x225=389.7(V)2qE§)ᑭᵨ#ᓄ%ᦔᵯ(I=?=©=46.2(A)YU=(/|0ᑣI=46.2|-36.872(t)222,s>3N3=4»(RK+J+U'23஻N0=¯°=5773.679

255773.67cos6+,5773.67sin0=46.2|-36.87x4|73.15a+U2(t)=184.8|36.28+^=149.16+09.35+[/2(t)5773.67cos6=149.16+(5773.67sin6)=109.35²³)´µ=5623.5(1)§028=¶=224.9/.U=73x225=389.7(V)23.47>?@6ᵯf,4ᘤḄ·¸ᦪjk)S=20000kº4,U/U=110/10.5|NlN2NYdllDE3f=50Hz3Z=0.105,I*=0.65%,P=23.7kW,0P=\QAkW஺v:)k(1)»=%ᦔᵯ(Ḅyᦪ3¼½»=%ᦔᵯ((2)¾,4ᘤp4qDᐭ110kVᵯÀ3~4qD>ÁÂVW3Ã6VWÄᢙk16.37+J7.93Q,:~4qᵯ5ஹᵯ4ஹp4qᵯ5஺ÆᫀÈÉ38Ê3.5>᪵3.48>?@6,4ᘤ3S=5600kVA,U/U^lO/6.3kV,YdllDE஺ᙠ~4NlN2Nrghᵯ4஻2NÍÎWvw3ϳ3Ð=6720Ñ3=824஺஺ᙠp4Íu(vw3u(ᵯ5=I,P=17920W,U=550V,v:)lNkk(1)ᵨ᪗ÓÔ⊤ÖḄLMyᦪ×u(yᦪ(2)ᵯ4,ᓄ᳛AU=0XVWḄឋÚ×Û᳛Üᦪcose?(3)ᵯ4,ᓄ᳛AUᨬᜧXḄÛ᳛Üᦪ×kUÔ(4)COS02=0.9(RS)XḄᨬᜧᦔ᳛஺ᐜ:>•6Ḅᱥᳮá3=%%=56%00=323.35(A)஺r=|%=5773.67(â)%=6MVd='%=5%ஹ6.3%=296.3(A)%,=672%=2240")4.73(A)PKE=a%=5973.33(H)=I=323.35(A)]N,S>

26^=%=%=317.55(V)k=*=5773.6%3=0.9164~="73%335=17.856(஺)0GZ,„=◚=wå=1331.92(0)R=g=22%=10012(Q)X=Jz'-R'2=V1331.922-93.422=1328.64Qm*00/4.V,nmmᢚᑮp4)Z=k2Z=0.9162x1331.92=1117.6(Q)mmZ)=ç=è=62.59R,“=0.9162x100.12=849)RN=%,=4.7856X,„=0.9162x1328.64=1114.8(0)X=i"4%62.43u(yᦪ)Z«=é=◤=0982(0)Z=^=0.055=>=m=0-057&=è=00032A*//k>K1/.OJOX8=JzN_R82=7O.O552-O.OO322=0.0549(2)/3-1A(7=0=7?*cos(p+X*sin(p/.tg(p=--^-=—=-0.058292223.33590ëìឋVWcos%=0.998(íî)ব஺=1ë=-Rsin@+Xcos%=஺...ïQ2=1=ð=17.156%=86.66(ñឋ)cos/=0.0583(RS)ò%=0.0032x0.0583+0.0549xsin86.66=0.055ভ&=ó(ᓽ4=õöXᦔ᳛ᨬᜧ)=7^=°-06124஻_1____4+-KN_____________6720+006124x17920___________15623.22x17319.68_QQgo//max>÷”5ùcos/+k+úᵨN—0.06124x5600x103x0.9+6720+0.06124x17920—2981.16xl03x5623.22—,7°3.49ᨵ>?@6,4ᘤ3S=5600kVA,U/U=10/6.3kV,YdllὶDü஺,NyN2N4ᘤḄÎWu(vwᦪjk:vw·Âþᵯ4U|/Vþᵯ5WA@6Û᳛P/Wᜓ
63007.46800ᵯᙠ550323.318000ᵯᙠ

27(1)ᘤᦪḄ▭᪗(2)COS92=0.8()!"ᵯ#᦮᳛AU&'ᵯ஺2)ᦔ᳛(3)cos+=0.8()!Ḅᨬᜧᦔ᳛஺.GN0=%X1()3=5773.67(V)/0=323.35(A)126300M3=56=296.3(4)
3=68ᖴ=2266.7(W)8=%=4.27(A)•••Z8”=┐=1475.4(0)R=:=;=124.32(0mX„=V1475.42-124.322=1470.15(஺)<==>==0.916z=Z2z=o.9162x1475.4=1238(0)R=0.9162x124.32=104.3(H)mmmx=0.9162x1470.15=1233.5(Q)mᦪ?@Ug=A=317.55(V)I=323.3(A)k(s)=i8ᔩ=6000(W)ZK=C=≈=0.9822(Q)&=F=◤=0.0574(஺)X,=70.98222-0.05742=0.9805(Q)Z=^==17.86bz=12%,=69.32R==5.84X8=V69.322-5.842=69.0786z=°,82%7.86=0.055R=o°57%7.86=0.003214XN=O-98%86=0.0549(2)AU=0(R8cos(p2+Xsin᜛2)=1x(0.003214x0.8+0.0549x0.6)=3.55%Iu=1—ᔜ...U*=(1MAU)U2=(1-0.0355)x6300=6076.3(V)Ml஻=]________"+/4v=]__________6800+1x18000_9945(V/~BSNCOS/+RO+/PkN-1x5600x103x0.8+6800+lxl8000—*/0ব"=P=ῖ=0-61464(஻=]____________6800+0.6146ஹ18000___________=9951//-0.61462x5600x103x0.8+6800+0.6146x18000-,/°

283.50MVWXᘤSN=750H<4,U/U=10000/400V,Yyὶd"eᢙlN2NZ=1.40+J6.48Q,leᢙZL=0.20+jO.O7Q,t(1)M'pqᵯ!"M&'ᵯr)&'ᵯ(2)sᐭஹsuv᳛ᦔ᳛஺k_Uwe_'°11%—75K-~M%MZ=k2z=252x(0.20+.07)=125+/43.75=132.435|19.29-LL(1)I஺%=5773.67(V)“=5773.67.-.Z=Z+Z=1.4+76.48+125+743.75=126.4+150.23=136ெ21.67஺(lAL...3==F=42.43jA21.67U=i\Z,=42.4521.671ᡃ᝞38|2=4=42.45(A)=42=1061(4)U2=6^%=5621.9ஹ6=389.5()ফ6=3U/cos/=3x5773.67x42.45xcos21.67=683.3(kW)P=®J?cos=Gx389.5x1061xcos®,-%)=cos(-2.38+21.67)=675.6(kW)2=1X100%=^|X100%=98.87%7ὶ£¤¥+YylO(b)

29Acr•>p»»K>»:rzXY一ὶ£¤¥Dd6

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ᡂὶᦪN᪵ᦪ〉ᵨ10AW!஺#$%&'()*+,⁚ḕ
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34✌✌4.16Z=24,2P=4,a=\,ᑴᓫ!"#$%&'஺()জ+ᵯ-./0'a-^60-2*36032a----2Z13_ἔ_61Z-24-OUqImp2x3x24~2p~4~0+ᵯ./0'64.154.179:;ᵯ<=50Hz,n=1500r/min,GHIᵨKLMᑖO#$q=3,NRS=8/9,VWὶYᦪN=108,YὶV᩽]^_Oi=1.015X10-2Wb,^=0.66X10-2Wb,305=0.24X10-Wb,07=0.09X10%^,g)(1)ᵯ<Ḅ᩽ᦪk(2)GH+ᦪk(3)#$lᦪmnஹ%N3ஹஹ%N5ஹ%N7k(4)ᵯ-.Eiஹ⎃ஹrஹstᔠᡂᵯ-.!wxᵯ-.ᨬ஺.60/6050p===2(1)n1500N2P=4(2)z-2mpq=2323=36

35বg=sin({90)=sin(-90)=0.9848T9.qa..320sin"1sin-----%——=---J-=0.9598.a.„.20qsm|3sin^P3602360“஺a.=-------=--------=20°'z36k=k%=0.9452Niylk=sin(~90°)=sin(380஺)=-0.866y3.3qa.sin—/ߟ1k,=------=0.6667q33qsin5%k=kk=0.6670.866=-0.5774N3q3y3&5=sin(580°)=0.6428.5320sin--------%=T^=°2I763sin-----2L=0.64280.2176=0.1399k=sin(780°)=—0.342yl7320sin--------“ᔆ“017743sin-----2k=(-0.342)(-0.1174)=0.0607N1(4)ᵨ=4.44/NhḄ=4.44501080.94521.01510-2=230.03(V)E=4.4433ᑁ=4.44350108(-0.5774)0.66IO-2=274.10(V)3E=4.445!⇋=4.445501080.13990.2410-2=40.25(V)54=4.447m%7a=9.17107E©=ylE8+E^+E1+E2+...=360.19(V)51=GE,=405(V)4.189;ᵯ<2᩽50Hz,GH54+V+ᑁ᪷a=\,22+Yὶ஺xᵯU°=6300V,gV᩽]^_஺•••%=6300")”=9=ᑴ=3637.41(V)

36g=4.44S2141P1^HN=N=i=lsac1k=sin(=90)=sin(|190)=0.9580y}.q%1sinJk“ஹ=------2_=0.9555.a,qsin8Z540q--------=--------=9Imp2311360,“r஺a,=------=166.7°14k=ky\kq\=0.95800.9555=0.9153NlE-------1=0.9945444⁂4.19KLM#$=50Hz,2P=10,Z=180,)15,=3,a=l,V᩽]^Ḅ=0.113Wb,]^8=(sin஺+0.3sin3᜛+0.2sin5^T,g)(1)ᵯ-.⊤"k(2)xᙌᵯ-.⊤"k(3)#$Ḅᵯ-.wxᵯ-.Ḅᨵᦔ஺"¥:¦6(1)2mp2357-82P10P3605360---------=---------=1i0noz1807V=^£1^=180asin(M90)=sin(j|90)=0.965951.qa..610sin-£ߟ1sin-----T=§¨(?sin—3sin——22k=k,ஹ%=0.9235Niᵯ-.ᨵᦔ

37E=2.22/a=2.22500.113=12.543clᨬᜧ%,“=6j=17.74(V)2203=-3"=371T=—33...4=¯a°“3=³´,•஺33B3µ^=¶஺·13=⌭°55B553=2.22¹3=2.22500.0339=3.7629(V)5=2.22/A=2.22500.0226=2.508643,“=6°3=5-32(»)%„,=6%=3.547")e=e+G3+%=17.74sinwt+5.32sin3wt+3.547sin5wt(V)tlxw=2TTP—60¿t=00=0=wte=b(0)lvf(2)xᙌᵯ-.:E=4.44ÁÂ=4.445030.96590.11350=72.69(V)V1Ei,“=V2E=1.41472.69=102.8vvlk=sin(Å90)=sin(Æ90)=-0.707y3E,3=4.44flVk^=4.44503(-0.707)0.033950=-15.96(V)cy3Eஹ.3m=615.96=-22.57k=sin(r90)=sin(575)=0.2588v5TE,.=5.51")102.8sinwt-22.57sin3wt+5.51sin5wr

38(3)…1Á…6sin——2,5610sin♦§ÉÊ9726sin——2kN3=ky3kq3=-0.4553Ë5=0.051..E=4.44=4.44501800.92350.113=4170(7)x஽=616.77")E=46.06(V)5..E*=Í+Î+Î=156”)42E=E8+E8=7223(V)txᙌÐÑÅÒᦑ6=Ô+4.209:;ᵯ

39=77^20=0,66673sin------2kN3=ky3%᝞=—63333E=4.44m%N303=4.4450360.33330.13=799.11(V)3EdZE8+E8=5462(V)E,=^3E=9363(V)ié)êÕ/ᦑxᵯ.ÐÑÅÒ4.21JOz-82-4ìíᵯ-?N”@18

40Nk,“880.925…(C(0.9A1-0.9-----------43.3=1586.1thP஺2&N3=ky3B3-0.4619“N5=ஹ5kqS0.05314%N7=%B7-0.04077688H)46]9)433.2643•923880.0531443.3=18.24D5=0.9520.988(-°-°40776)43.3-9.99=72(2)F=1586.1COSwtcosOA]F=1586.1cos(wr-l20°)cos(6-120°)BlF=1586.1cos(vvr-240°)cos(^-240°)C]Nk3(3)7^=1.35-—L=-1586.1=2379.2ip2FஹτᓝJ60/6050cGH(஻]=------=--------=1l5c0n0Az77m,p=235
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GN=GPᵫ=L5(ߟ9.99)=—15H(n=-214.3r/?m,p=vp=147vsin(l130°)-0.5=sinll75°=0.9659=-0.12184sin(l17.5)3.965888(-0.1218)r=0.9----------------43.3=—lo.9oP1123^i=2^n=1.5(-18.98)=-28.47M(Pu=112=22᩽/I”==136.36QR(4)-Fcos(wt-0)-2379.2cos(wf-0)xf(t,0)=27.36cos(wf+5஺)5S(f,e)=-i5cos(w-7e)(t,0)=-28.47cos(wf+11஺)

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ᔲ!5.25᪵ᦋoᓫIᵯ¸ᵯ(Ḅ¹ᔣ!º᩽Gᵯ(᝞ᦋoᐸᑁ½¾᪀ÀḄ¹ᔣᦋoᔩ!5.26ÂHIÃÄJKᵯ(ᵫᓫIᵯ9ᵯஹ¥ÆᓫIᵯ(cᵨ.ḄFwᳮÇ஺5.27bct-ᘤaÉ὚o-ᘤIᨵnËÌÍ!5.28>'ÄÎJO2-82-4ḄHIJKᵯ(Ḅ)Ò᳛55kW,)ᵯ-38OV,)Ò᳛1ᦪ0.89,)ᦔ᳛91.5%,Ùᵯ(Ḅ)ᵯPN=®NINCOSFPEN'=Û஺=Ü38Ý.5%=102.62;AA5.29JKᵯ(Ḅ)⚣᳛50Hz,)[970r/min,Ùᵯ(Ḅ᩽ᦪ=«¬!)æ᳛=«¬!■஻N=970%n஻i=1000%n஻|=ë஺=ì=3᩽ᦪ6᩽஺g_=1000-970_naJ—%—1000—uJ5.30-'50HzHI+FGJKᵯ()*+,Yὶᙠ)*k)ᵯ-஺¥*îV.ᐸïðñòᵯ-72V,*&IᵯYó=06஺&IôᢙX2஺=4Q஺øᶍ)*ôYᢙ-Z)PQs,v=0.04,.;1A*ᵯḄ⚣᳛4*ᵯḄ⚣᳛ü=S'/=0.04x50=2Hz2ᵯḄᜧᵯ72V,ᵯᵯ..•#$%&ᶍ()*ᢙ,-.Ḅᵯ=%R'LX2b=kKX”—J"=%—2.6K/=kj'2=2.68(A)22J12+4,2ḄJx;"39ᵯ:;Ḅᜧ:#$BḄCDᵯ;4=%=41.57VGBHᓽS=l,L5,\,=0.04BE=SE=0.04x41.57=1.66(V)2s2(4)ᵯPQPRS᳛஺P=m^RI=VW&=3x2.682xᗞx0.6=310.3(V)mec225.31Z[\]^_`ᵯ:PḄᦪbcU=380V,(dὶf50Hz,g(hN=1426஻min,m=2.865஺Xb=7.710,4=2.820,X=11.75஺R,“&ᶍHrX,“=202Q஺tu:

51(1)᩽ᦪwc•••஻.=1426%n஽=1500AP=2,ᓽ2P=4(2)z`h஽=1500%”(3)g(|}BḄ~᳛⚣᳛s=^=ᘀ=0.0493f=sf=0.0493x50=2.467("z)2t(4)Tᦔᵯ$rg(|}BḄஹ6ஹcos%Z?=+=+J11.75=57.2+J11.75=58.4|11.61°y7,_X,„Z,_/202x58.4|11.61_11796.81101.61_11796.8H01.61_A">Z2=X,„+Z=J202+57.2+j11.25=57.2+2l3.75=221.27[75=3XlZ0-3^2Z=R1+jX+XZ=2.865+J7.71+47.67+,23.86=50.535+,31.57i(rm2=59.59M=4=Wir=6.3371-31.99஺(ᵯV3/,=11.04(A)Pஹ=cosx380x11.04xcos(-31.99°)=6162.7(W)cos(pஹ=cos(-31.99c)=0.848()E==380-6.337|-31.9908.225|69.620=380-52.45|37.63°=380-41.54-732.02=338.46-J32.02=339.97|-5.404°•->=1=ᗸ¢1=5.82|-17.014°(A)25.32Z[JO2-92-4^_`ᵯ:PḄᦪbcP=15kW,U=380V((dὶf),2Nn=1480/7min,&=0.088஺X=0.404Q,R8=0.073஺X¤=0.77Q,NlaR,“=2.75Q,X=26஺PR¥ὑp=l.lkW஺tᵨTஹ©ª«¬mmecᓄ¬^¯ᦔᵯ$rg(|}BḄ(ᵯஹS᳛°ᦪᦔ᳛±r²³´µᑖ᪆¸©஺Tᦔᵯ$cZ?=+=—+J0.77=5.475+0.77=5.529&Z„,=G+jX“,=2.75+J26=26.145|83.96஺(஺)

52Z,„Z=.M-=26•»8.69*552/6319.04°(Q),n2Z+z28|72.921--------------'7m2/,=½=¾¿=70.514|-228ভᓽi,=70.514(A)cosÁ=0.9219()ÂuS᳛⌕rÄ£=Æ=஻\/4=380-70.5|22.8x0.413|77.71=380+5.312-j28.63=386.371-4.249(A)'Ä=¢=ᣳ=69.9(A)1„,=᱃=Ë=14.78(A)P=3/&=3x70.52x0.088=1312”)P=3I8R=3x69.92x0.073=1073(l¥)cutcu22%=3/,=3x14.782x2.75=1802”)ᓃ,”1100(W)Î&ᶍ஺஻=1-Ï)=929%©ª«Pᵯ$5.33Ð^_`ᵯ:PP=10kW,UN=380V(ᵯ)l=19.8A,4᩽YNNὶf&=0.5Q஺Ô}tÕᦪbcS=380Ö(ᵯ)/=5.4A,=0.425kW,0PR¥ὑ஺×=0.08kW஺Ø$tÕÙḄ\ÚcU=120V(ᵯ)I=18.14,kkp*=0.92kWotr&ᶍÔ}▬Ý¥ὑÞXy=XBḄàᦪR8ஹáᵪஹ&,2(TX,”஺Ô}tÕc4)=ã==40.63(஺)&ᶍä”%—æ/c4\ᨴᔬ=425—3x5.42x0.5—80=301.26(W)/?„=1=ᴉ=3.444(஺)ᡈὅì“=í\0.5X஺==A/40.632-4.8582=40.34(Q)Ø$tÕcZk===3.828(0)4=/=1=0.936Q)X=Jz-=J3.828?-0.9362(Q)k=3712&=(m-RJa=Q936-0.5)x=0.48Q

53Xi஺-x?b-X஺£(R+X)=40.34-740^347l2x(0.482+40.342)=1.9(0)X=X஺-Xï஺=40.34—1.9=38.44(஺)m5.34\]^_`ᵯ:PḄðᐭS᳛10.7kW,(òὑ450W,óὑ200W,~᳛s=0.029,,trᵯ:PḄᵯôS᳛ஹòὑõQPRS᳛஺ᓃì“\᜜,=10700—450—200=10050(W)ᵯôS᳛Pcu2=SPe,“=0.029x10050=291.45W÷ø=(1\S)Î=10050—291.45=9758.55W5.35\]JO2-52-6_`ᵯ:Pg(ᵯ380V,(Aὶf⚣᳛50Hz,g(S᳛7.5kW,g(h960r/min,g(|ᦟBcos%=0.824,(òὑ474W,ᱥὑ231W,PR¥ὑ45W,▬Ý¥ὑ37.5W,trg(|}B,(1)~᳛(2)ᵯḄ⚣᳛(3)òὑ(4)ᦔ᳛(5)(ᵯ஺প,ஹ஻ü60/£=30*00=ý…Ä0ᯅ”/^1000-960.A5==004஻11000(2)==0.04x50=2஻Z(3)P,=P+P+2”=7500+45+37.5=7582.5Wnec2mece“”=a—s)4,7_Pent206.82x103x60=ব7MM"”2)x15007

547500+1103.515.86A"73x380x0.8245.36".4᩽0123ᵯ567P=2Q0kW,U=380V,9:;ὶ=79:>9NNᵯ?4=3854,@50Hz,9:CὑP&2=5.12AW,F:Cὑpg=2.85AW,Iὑp%=3.8AW,6JKὑp=0.98AW,▬NKὑp=3kW,mecad&=0.0345Q,X,=5.90஺OPQRS=0.202Q,R8=0.022Q,nXᨌ=0.195஺WX5S7ᵫZ[\⛳^_`aᦔcḄef7Xg=0.1375஺7—=0.07150,Xh=0.11Q஺ijkl1m>9nopḄFqஹᵯ[Fs^ᦔ᳛Wl2mᨬᜧFswᦪlᓽzo{m^X5Fswᦪ஺|প&"=P2+Pn,ee+P~=200+0.98+3=203.98kwPan=S7ᓃ=l1"Sm.Pc“2_Sᓽ2-85_S"I-S'203.98-1-SS=0.01378஻=(1"S)஻1=(1—0.01378)x1500=1479r/min2.85p206.82bvem0.01378206.82x103x60T=1317N.Mm2x1500P,Pஹ_____________200_____________=92.7%஻"ὡ"⎋200+5.12+2.85+3.8+0.98+316ফ2(/?,+N+,)2)603x380?---------x--------------1_=3186NN2x15002x(0.0345+70.03452+(0.202+0.195)2)=13=129L97N”Q2^x1479

55"3186=2.466T1292vT=___________m/U_______“-2(+4)2+ᾙ஺+9=3xJ°஺4*o,34x20.52=10287.72W0.04____________3x2x3802x0.0715____________=2721.5N.:T?2^x50x[(0.0345+0.0715)2+(0.1375+0.11)2]2721.5=2.1112925.37".£¤8᩽23ᵯ56Ḅᦪ¥¦kPN=200AW,U=380V,f=50Hz7Nn=722r/min,zo{3=2.13஺ij:N(1)¨#ᨬᜧᵯ[FsSḄF©᳛;(2)s=0.02SḄᵯ[Fs஺(1)£=_&+¬®᎔᝞pkJ==W(ᓽ7W“=஺S)7KmaxmS,“SNs8-2kmsFm=0j"ᐗ²³´ᓽµn-n750-722tSN=0.03733750S=0.03733x(2.13+A/2.132-1)=0.1497m(2)200x1()3x60PN2646.6N.mQ2x722T-k,„T=2.13x2646.6=5637.2N.஻zmMN&=2Maxh+»ssm

56______522____=________________________________=_____________________________II5637.20.1497τ0.027.485+0.1336,0.020.1497T=5637.2x0.2625=1480MNem5.38".£¤4᩽23ᵯ56>9·᳛¦28kW,U=380V,=90%,Ncos஺=0.88,9:¦£¸¹ὶ=஺ᙠ>9ᵯ»p¼=X5S7X5ᵯ?¦>9ᵯ?Ḅ6w7ijᵨY-;X5S7X5ᵯ?¾¿ÀÁ28xl03=53.72A"6ucosBprh*x380x0.85x0.9N¼=X5SḄX5ᵯ?kI=61=6x53.72=322.3AslNᵨY-;X5SkI'=^=IQ1AA“35.39".£¤ÂÃF:23ᵯ567PN=155ZW,IN=294A,2p=4,=380V,Yὶ=஺ᐸÅᦪ¦%=RW=0.0120,X.=X'=Q.Q6Q,CT,«1,ᵯ5ÆÇᵯ?ḄÈÉÊ=ᓃ=1.2஺Ë⌕jÍX5ᵯ?▲ᑴ¦3w>9ᵯ?7iÐÑcᙠF:Ò\Ó¤0=ᐭ¿ᜧḄX5ᵯÕÁÖSḄX5Fs¦¿ÀÁ|k×=34=3x294=8824X5SÕᢙk=7¡+R8+R8y+BXg+X2஺/?,++RN=V0.2492+0.062=0.218஺=0.218—0.012x2=0.1940Ó¤=ᐭḄX5ᵯÕ¦:

57AR=0194[347O]kR1.22ÙÚP%2(RW+RW)T=r=SJ2M(R+R8+R')2+(X+XJ)2isti(r23x2x^x(0.218-0.012)rR____________=3059.7N.஻?2X3.14X50X(0.2182+0.122)5.40—.4᩽ÂÃ123ᵯ56750Hz,F:Ó¤ᵯÕ⁐=0.02஺7>9noS஻N=1480/7min,ÝnoFsÞÈ7⌕jÍFqßᑮ1100r/min,ácᙠF:Ó¤âᐭ¿ᜧḄᵯÕÁ|k%=⇧ãM஺஺äP஻L,V1500—1480S=0.01333N«115001500-11005=0.26671500:noFsÞȲᵯ[FsÞÈ&_&+~Ùs\02667-1)x0.02=0.380æ=L%=(0.013335.41".£¤4᩽23ᵯ567U[N=3801,9:Y=è7cos%=0.83léêm,ᵨ=0.350,%=0.34஺7s=0.04,6JKὑ^▬NKὑë^¦288W,ìNIஹN=4=20.547ij:l1m>9QRSíî·᳛ஹᵯ[·᳛^íᐭ·᳛:l2m>9QRSḄᵯ[Fs^íîFs஺প2P=4,n.=1500/.1/min

58஻N1500-1426l2mSN=0.0493«11500f=sf=0.0493x50=2.47//Z2i_5.31"᪵ভP=spemcu2p==3x5.822x2.82=286ðcu2PL-=I=5812.6W஺ñ=⌕◤=37ὀ5.42•.£¤4᩽ÂÃõ23ᵯ567/,=50Hz,F:Ó¤ᵯÕA2=0஺150,>9QRSF:¤ᵯ?¦200A,Fq=1475r/min,ijkl1m>9ᵯ[FsWSN=^F=0O667,=¥44=3xZOO?x὚=10800lWm&=^=/=688lNMl2mᙠF:Ò\âᐭᵯÕ÷Fqßø1120r/min,jᡠâᐭḄᵯÕúlûᢝ>9ᵯ[FsÞÈmWC—1500-1120—AN—1500—R_ᵯ+2='S%=lýTm&=l9Tmx0.015=0.213lQml3mF:âᐭᵯÕþêÿᑮ
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