CHƯƠNG 5: CÁC MÁY BIẾN ÁP ĐẶC BIỆT Bài tập 5-1.    ∆  !"#  $%#  $%"#  $% & $% & $%"#  $%"!" '()*+,-)()./0102.3)*45*678"9:)(*;<) 0=7>?:*4(@7A)B8 01)/ϕ  %"!*4 ()B801)/ϕ %"!"C:,-∆  $01  $" Đáp sốD" &  % ?EΩ&F  %? #Ω&F %? Ω '  %!?Ω'F  %?EΩ'F %?#Ω" " ∆  $%#?01  $%#?" G()H7*4*+.I))J.(5(D . K. . L   M N"NE O   × = = = × × . K. . L   M EE"EE O !"#  × = = = × × . K . . L   M  "   O   × = = = × × P*Q0R/6))BD . K. K. . O !"N  M M EE"EE "!E O   × ′ = = = × . K . K . . O   M M  "  N"NE O   × × ′ = = = × G()*4(7S.3))J.(5(D  .   O "# O "# NE × = × = × = & .   O " O "# E!"#E ! × = × = × =     '  & O O O NE E!"#E ! N# = − = − =  .   O "# O "#  #" × = × = × = & .   O "# O " N#N"! × = × = × =     '  & O O O   N#N"!  " = − = − =  .   O " O " NE" × = × = × = & .   O "! O "! ##!"!# × = × = × = 61     '  & O O O  " "! E N#N" = − = − = G()Q7@T)J.(5(D &  K. O E!"#E ! & N"N M N"NE ′ = = = Ω '  K. O N# ' E"N M N"NE ′ = = = Ω &  K. O N#N"! & E"#! M N"NE ′ = = = Ω '  K. O  " ' # "N # M N"NE ′ = = = Ω &  K. O ##!"!# & "#! M "!E ′ = = = Ω '  K. O N#N" '  "#!#E M "!E ′ = = = Ω ′ CQ7@T)J)()D     N"N UE" E"#! U# "N # "#! U "#!#E V V V V   + + + − − + − = =  , "EN U"EE-= + Ω     "# ! U "#!#E N"N UE"N E"#! U# "N # V V V V   + + + − − + − = =  ," N UE!" !N-= + Ω    E"#! U# "N # "#! U "#!#E N"N UE"N V V V V   + + + − − + − = =  ," U "NN-= + Ω W*Q*4()J.(5(D   . L   "N# L  = = =   . L   " L  = = =   . @ . &  M N"N "N# "!E  "EE O   ∗ ′ × × × = = = ×   . X . '  M E"N "N# "!E  "NN! O   ∗ ′ × × × = = = ×   . @ . &  M "E " N"NE  " N! O   ∗ ′ × × × = = = ×   . X . '  M "EE " N"NE  "NE#! O   ∗ ′ × × × = = = × 62   . @ . &  M E"#! " N"NE  " E O   ∗ ′ × × × = = = ×   . X . '  M # "N # " N"NE  "E O   ∗ ′ × × × = = = ×   . @ . &  M "E "N# "!E  " O   ∗ ′ × × × = = = ×   . X . '  M "EE "N# "!E  "N O   ∗ ′ × × × = = = ×  @  X  @ X O  )/  /  )/  / ∗ ∗ ∗ ∗ ∗ ∆ = ϕ + ϕ + ϕ + ϕ  "EE "! "NN " " N! "! "N " " = × + × + × + × =  @ X @  X  O  )/  /  )/  / ∗ ∗ ∗ ∗ ∗ ∆ = ϕ + ϕ + ϕ + ϕ  " E "! "E " " "! "N " "#= × + × + × + × = Bài tập 5-2.L *. %  ##"# "#   $%"EN & $%"N9 KY %E"# Z9  % "#Z"7[*Y.\31 ]7^"C@A1,-)()1]7^"C:,- )_7/1`@R^@])501)_7/55,)-4/ T8*+.I)0=)/ϕ%"!,-H7*47S.3))J]7^" L6*>.(5(;Aa" bH7*4@7)()D . G G L   M #"! O #  × = = = × × . c c L   M "E O   × = = = × × bH7*4@7))7D G c G M M M "E #"! ##" != − = − = Công suất truyền tải của máy biến áp:  L = d  # L , -L   !"    = + = + × =  ÷    c G L O M  ##" ! #"N= = × × = c4/)J.(5(D d  d  eY  L )/ !" "! "EE L )/ 9 9 !" "! E#  # ϕ × η = = = ϕ + + × + + 63 O G O c M G M c X   ' f  M  f  M  O ? g  O  ?g  CQ7@T7S.3))J.(5(;[7*Q0R3(D   G  G  G . O  O "EN  h "!! M L   ∗ × × = = = = Ω × i1.(5(j7(AQ7@T7S.3)\1D G   G c O # h h "!! "# O O N ′ ′ = = = Ω + bH77S.3).(5(\1.4.0kj7(D c   O  M #E"# h "# ′ = = = ′ × bH77S.3)?1.4.0k3(D G   G O # M M #E"#  ! O  ′ = = = Bài tập 5-3. ]7^.)B*4( N#?K%ch?0l1 78.(01)7))8)BQ7@T∠  Ω"mQ01n_78@7 .(?oX()*+D,-H7*48,-H7*401:)(,)-H7*4 ,5*Q*4(-@7))7,-)_7/1`@R^@])5 01)_7/5*Q,55-" bH7*48D c  c  O N# M M # h  = = = = bH7*4:)(D c c G G G M O # N# M NN" M O   × = = = bH7*4@7))7D G c G M M M # NN" !"E!= − = − = G_7/D   G L O M N# !"E! !NN= = × =  c G L O M N# NN" E!E= = × = Bài tập 5-4.]7^.0l1j7()Bp/5*Q*4(F%N *;<)0=7>)B*4("9:)(0=8)B)_7/?4 /)_7/"!,)l./-"mQ01n_78@7.(?o02.3) 64 *401X()*+D,-*4(:I),-H7*48?,)-H7*4@7) /6,-H7*4@7)/6)" W4(I),)(-D G c O  O N  N ′ = = × = bH7*48D  G   M M N" N × = = = bH7*4/6)D c G M  M N N" " ′ = = × = bH7*4@7)/6)D G c G M M M " N" #= − = − = Bài tập 5-5.]7^.)BQ7/0H7\1?@7*BI )\10H7"9:)(*;<)0=7>)B*4(N?K%ch"b I0=8)B)_7/N"!?4/)_7/",)l./-"mQ01 n_78@7.(?oX()*+,-*4(:I),-H7*4/6)01 I),)-)_7/1`@R^@])5,-)_7/55,- n_7)])*3@7\qr" W(/D,-!,-?,)-,- ,Y-?#Z L0H7/6)D   g  g   N07= − = − = W4(I)D c c G G g  O O N ! g  = = × = bH7*48D   c c L N! M M  O ! = = = = bH7*4/6)D c G c G g  M M   g  = = × = G_7/55D  G c L M O , - ! = = − × = G_7/@R^@])5D  d  L L L N!  = − = − = 65 Cn_7@7\qrD c  O ! "# N"NNKg N"NN #  Φ = = = × × Z Bài tập 5-6. ]7^.)B)_7/?NNN?ch)7 ))8`@T)_7/!Z?N01.*7)6?N?ch"W7)6 *70l1E$8?)/ϕ%"!)l./?4/!!$"mQ01n _78@7.(?o:,-)_7/1`.17>)7)) ,-)_7/1`@R^@])501)_7/55" G_7/*7)6akn\;=*4D ) ) 9    L E#" )/ "!! "! × = = = η ϕ × CQ7)_7/)J8s7)_7/7>)7)).(5(D  ) @ 9 L )/ t9 E#" "! !  N= ϕ = × + = Z  ) P L / E#" "# NE"= ϕ = × = VAr     d  L 9 P  N NE" = + = + = VA bH7*48D   c c L  M M "N!N O N = = = = bH7*4/6)D c G c G O N M M "N!N !"!! O NN = = × = G_7/55D  G c c G L M O ,M M - N "= = − × = G_7/@R^@])5D  d  L L L  " E= − = − =  66 . CHƯƠNG 5: CÁC MÁY BIẾN ÁP ĐẶC BIỆT Bài tập 5- 1.    ∆ . N#?K%ch?0l1 78.(01)7))8)BQ7@T∠  Ω"mQ01n_78@7 .(?oX()*+D,-H7*48,-H7*401:)(,)-H7*4 , 5 *Q*4(-@7))7,-)_7/1`@R^@]) 5 01)_7/ 5 *Q, 5  5- " bH7*48D c  c  O. Ω + bH77S.3).( 5 (1.4.0kj7(D c   O  M #E"# h "# ′ = = = ′ × bH77S.3)?1.4.0k3(D G   G O # M M #E"#  ! O  ′ = = = Bài tập 5- 3.