电工电子技术-第二版-焦阳-课后答案

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1、11001200.520123456782US/4RS910KCLKVL110123456789101.5V6V7.5V1220ABAB2CABC3BABC41K2.5WAA50mAB2.5mAC250mA5220V100W220V25W220VBA100WB25WC6A65VB35VUBA=BA100VB30VC30V71-31CAADBCUSDV81-31CABC91-31B1-31ABC101-31DABCD32410.51A10V0.5124232322234561KW·h11KW1100W1010W1007826

2、R1I1bI4A411-32I=10mAI1=6mAR1=3KR2=1KR3=2KIaR3A4A58aKCLI-I-I=0I=4mAR2I2I5122A5cKVL63+2I41-32I3=-7mAA4=13mAA53mA21-33UabI83UabI031-34I3US1=30VUS2=40VR1=4R2=5R3=21013US1I33.95AUS2I3"4.21AI38.16A2UOC34.44VR02.22I38.16AII1aI2a2bI36V12VR1R2R355US1US211b1-331-3421001200.

3、52012u3802sin(314t60)V3802V380V50Hz0.02s314rad/s314t-6060/334RjXLjXCR+j(XL-XC)56i=u/RdiuLLdtduiCCCdt789410RLCR110123456789102201220V100W220V25W220VBA100WB25WC2380V38BAu380sin3144tVBu5375sin(314t45)VCu380sin(314t900)V31010VVPP/2AA7.07VB5VC14VD10V4DABCD5i10sin(314t9

4、0)Ai10sin(628t30AC12Ai1i260°Bi1i260°C6AABC7RLUR=16VUL=12VBA28VB20VC2V58RLCf02f0BABC9AABC10AABCD3121110V100W110V40W220220V23450380450V380V537V380V4222200VVU1110VU2178V222UU1U2RLU222U(UUcos)(Usin)12222383sin314t28sin(5t17°)1T=0.02sf=50HzT=1.256sf=0.796Hz17°28u2202si

5、n314tV6i8I=U/R=220/8=27.5Auii27.52sin314tA27.5AP=UI=22027.5=6050W30.1u2202sin314tV100Hz82L=3140.1=31.4Q=220/31.4=1541Var22L23140.1=62.8Q=220/62.8=770.7VarI=U/2L=220/62.83.5Ai=4.95sin(314t-90)A4110V5A400W92222R=P/I=400/25=16Z=110/5=22(L)=22-16=228L=48.1mH52-22R6XL8

6、RUS220VI~uSX8L22Z=68=10I=U/Z=220/10=22A2-220.520112023303Y31Y4Y220.810A1760W1320Var72200VA17.642mH5380V220V36V6789100.577Y11012YU3UlP34Y5SSSSACC636VY89102121ABC2ABC10A30AB10AC7.32A3BABC4UAUBBUC220V8UAB380VUBCUCA220VCAABBCC5BABC06CABCD308Y2380V26AABA6ABABAB2266/1.7

7、32=15ACAAACBBC15+7.5=22.5A33-15V1380V8AA2AA1VA2V210V110NA31010CCA11010V1BBab3-159aV1380VV2220VYA1A2220/10=22AA3bV1=V2380VA2380/10=38AA11.73265.8A4380V36V4380V54281Y38063RXL83000380cos0.758Z36.73220636R36.70.758527.8X36.7sin(arccos0.758)23.9L2220V17.34.5845002203co

8、s0.683Z22322017.317.3R220.68315X22sin(arccos0.683)16.1L3Z3j4,380V8YUP=220VI=IP=220/5=44AP=17.424KWQ=23.232KVarS=29.04KVAUP=380VIP=380/5=76AI=131.6AP=51.