Tài liệu Giáo trình Máy điện - Phần 2 doc

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Tài liệu Giáo trình Máy điện - Phần 2 doc

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Gio trnh My đin Trang 12 1.6                 : 1.6.1           :    :  :          :            : ( )                       .   :  : 2 .  : 2 . u = 1 u = 2 1  2 (4 )  S = Z nt = G (Z nt = u.Z ) G:            Z nt :  Z:  Gio trnh My đin Trang 13  : y 1 :     : 2 . y 2 :      :   y :       : 2  2    y G :       : 2     y 1 , y 2 , y:        . y G :        y = y G ( 2   ) 1.6.2     : a) :  : nguyeânsoá p Z y nt   2 1 Z nt :   (  Z nt ) y = y G = 1 (       ) y G = -1 (  ) y 2 = y 1 - y  :            nt .         ,             0,    > Z nt               :        0 hay âm : Số thư ́ tư ̣ ra ̃ nh tương đương =         + Z nt  y 1 y 2 y y G    y 1 y 2 y y G 1 +y 1 (1+y 1 ) -y 2 +y 1 (1+y 1 - y 2 ) Gio trnh My đin Trang 14        > Z nt : Số thư ́ tư ̣ ra ̃ nh tương đương =          Z nt  .                  .  (       )  .              (           ,      song song,   ,   ) b) :  : Z nt = S = G = 16 2p = 4.   : 4 4 16 2 1  p Z y nt y = y G = 1 y 2 = y 1  y = 3      : Sô ́ đôi ma ̣ ch nha ́ nh:               2a = 2p =                : a = p Đa gia ́ c sư ́ c điê ̣ n đô ̣ ng: :   : 2 u. nt ñ Z .p   360  p:    7 - 15 6 - 14 5 - 13 4 - 12 3 - 11 2 - 10 1 - 9 8 - 16 1 2 3 4 5 6 7 8 9 10 11 12 16 13 14 15                         +y 1 -y 2 Gio trnh My đin Trang 15     :    45 16 360.2  1.6.3         :  : m :    +   =2 ,     > 2  : m = 2  : m = 3 y = y G  y 1 = nguyeânsoá p Z nt   2 y 2 = y 1 - y          .  2     . + 10 9 2 1 1 2 3 4 5 6 7 8 15 16 9 10 11 12 13 14 13 14 5 6 - Đa gia ́ c sđđ cu ̉ a dây quấn xếp đơn. 2 đa gia ́ c sđđ tru ̀ ng nhau. Gio trnh My đin Trang 16      :   : V:  nt = S = G = 24 ; 2p = 4      :    2 .      = (    )  ,         . 3 1 2 4 5 y 1 y 2 y y G 1 +y 1 (1+y 1  -y 2 +y 1 (1+y 1 - y 2 )   ( )         1 3 5 7 9 11 13 15 17 19 21 23 1             1 3 5 7 9 11 13 15 17 19 21 23 1                             Gio trnh My đin Trang 17      : 2a = 2mp m:                 : o nt ñieän . Z .p 30 24 3602360   1.6.4     :  :  ε 2p Z y nt 1  y = p G y G 1  y 2 = y  y 1      : : : Z nt = S = G = 15 2p = 4   3 4 3 4 15 2 1   p Z y nt () 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 1 2 3 4 5 6 7 8 9 10 11 12 16 15 13 14 17 19 18 20 22 21 24 23 23 24 A1 + A2 B2 B1 + - - + -      : (  )      + :  1 +y 1 (1+y 1  +y 2 +y 1 (1+y 1 + y 2 )   ( )         1 Gio trnh My đin Trang 18 y = 7 2 1151      p G y G y 2 = y  y 1 = 4      :      : 2a = 2 1.6.5         :  : p mG yy G   nguyeânsoá p Z y nt   2 1 y 2 = y  y 1      : : ,       : Z nt = S = G = 18 2p = 4  4 2 1 4 18 2 8 2 1      p Z y p G yy nt G y 2 = y  y 1 = 4     :    :    : 1 8 15 7 14 6 13 5 12 4 11 3 1                     10 2 9    1 +y 1 (1+y 1  +y 2 +y 1 (1+y 1 + y 2 ) (   ( )         1 1 9 17 7 15 5 13 3 11 1          2 10 18 8 16 6 14 4 12 2                          Gio trnh My đin Trang 19      : 2a= 2m 1.6.6       :       : y 1x = y 1s y 2x = y 2s 2 ax = 2 as 2m x p= 2m s m x p = m s : m x = 1  s  p Khi p = 1 -  p = 2 -  p = 3 - song ba : : Z nt = S = G = 24 2p = 6    3  6 24 2 1  p Z y nt x 1 Gxx yy 3 12  xxx yyy  : y 1s = 4 = y 1x 7 3 3243      p G yy Gss y 2s = y s  y 1s = 3 = y 2x       1.6.7       : y 1x = y 1s y 2s y 2x y Gs y Gx Gio trnh My đin Trang 20       ,       , khi a 1              .  .                                     ;      .   .                           .          ,            ,            .     4      ,     3 4   .            (P  > 100kw),    20-30%            .                           . Ti . . 21 22 23 24 25 26 1 2 3 4 5 6 7 8 9 10 11 12 16 15 13 14 17 19 18 20 22 21 24 23 23 24 A1 + A2 B2 B1 + - - + -      : (  ). = G = 15 2p = 4   3 4 3 4 15 2 1   p Z y nt () 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 1 2 3 4 5 6

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