Gio trnh My đin Trang 8 1.5 MCH T LC KHÔNG TI CA MY ĐIN MT CHIU I. ĐA ̣ I CƯƠNG: 1.                :          1 4   . h G :   h C :     :       h  :    h  :     0 :        :     .         thông     .                  = 0,                .                      0 .                                0   0        C .         C                           C =  0 +    C =  0 +   =  0 ( 1 + 0    ) =  t .  0 T  :  t :       ,    t = 1,15  1,28 2.             :          0                     .                       .    n 1i ii HFIwHdl     : h G h c h  h       0  Gio trnh My đin Trang 9 H I :                 i :                   n 1i ii HF              5   :   ,    ,         . F = 2H c h c + 2H   + 2H  h  + H  l  + H G l G   :   :                 G :         . c:    :     r:      :      G: gông II. SƯ ́ C TƯ ̀ TRONG KHE HƠ ̉ KHÔNG KHI ́ : (F  ) *         :             ; ,            ,    max = (1,5  2,5)                           F  = 2 H  H  :             0 B H     B:          0 :            0 = 4  .10 -7 (H/m)   '.b B 0     .    :       0.62  0.72  0 :       .   :       . :      ( p D. ö 2    ). D  :       . 2p:     . 2    c :  l c :       . l = l   n g b g :         . l  :         . b g :           . n g :         . Gio trnh My đin Trang 10 .K              . K  :             .  :    10 10 1 1    r b t K t 1 = Z D. ö         Z:     . b r1 :       . III. SƯ ́ C TƯ ̀ RÔ ̣ NG TRÊN RĂNG PHÂ ̀ N Ư ́ NG: (F  ) F  = 2 H  . h    = craêngx K b .t.B    1 b  :        K c :              c = 0,93  0,95 K  :        K  = 1 craêngx x K b .t    t x :       cao x         = f(H  )/K  IV. SƯ ́ C ĐÔ ̣ NG TƯ ̀ TRÊN LƯNG PHÂ ̀ N Ư ́ NG: F  = H  . l        : Cöö ö ö K hS B 2 0     S  = h  .l.K c :     .                        H  b r1 t 1 b  t 1 x b  b  b  0,4 0,2 K    H  B H Gio trnh My đin Trang 11 ö öraêngö ö h p )hhD(    2 2   V. SƯ ́ C ĐÔ ̣ NG TRÊN GÔNG TƯ ̀ : F G = H G .l G B G = GG t G G l.h . S 2 0                          H G G Gcö G h p h)h(D( l    2 2  VI. SƯ ́ C ĐÔ ̣ NG TRÊN CƯ ̣ C TƯ ̀ : F c = 2 H c . h c ccc t C C c K b . S B  0       H c   : F = F  + F  + F  + F G + F C . :    10 10 1 1    r b t K t 1 = Z D. ö         Z:     . b r1 :    .     H  b r1 t 1 b  t 1 x b  b  b  0,4 0,2 K    H  B H Gio trnh My đin Trang 11 ö öraêngö ö h p )hhD(