Thiết kế động cơ không đồng bộ 3 pha Roto lồng sóc.doc

Môc Lôc

C¸C TH«NG SÈ ®ÞNH MØC........................................................................................3

- CÊP C¸CH ®IÖN: F ........................................................3

PHÇN I:X¸C ®ÞNH KÝCH THÍC CHÑ YÕU..............................................................4

P’ = ............................................................................................4

A= 420 (A/CM).................................................................................................5

21-ChiÒu réng r¨ng Stato..............................................................................................................8

22 .ChiÒu cao g«ng tõ Stato..........................................................................................................9

23 .Khe hë kh«ng khÝ....................................................................................................................9

PHÇN IV: X¸C ®ÞNH ROTO.......................................................................................9

24 .Sè r·nh R«to............................................................................................................................9

25 .§êng kÝnh ngoµi R«to............................................................................................................9

26 .§êng kÝnh trôc R«to...............................................................................................................9

27 .Bíc r¨ng R«to.......................................................................................................................10

28 .X¸c ®Þnh s¬ bé chiÒu réng r¨ng R«to...................................................................................10

29 .Dßng ®iÖn trong thanh dÉn R«to..........................................................................................10

30 .Dßng ®iÖn trong vµnh ng¾n m¹ch.........................................................................................10

31-TiÕt diÖn thanh dÉn................................................................................................................10

32 .TiÕt diÖn vµnh ng¾n m¹ch.....................................................................................................10

33 .KÝch thíc r¨ng, r·nh R«to....................................................................................................11

34 .DiÖn tÝch r·nh R«to...............................................................................................................11

37 .ChiÒu cao g«ng R«to............................................................................................................12

38 .§é nghiªng r·nh Stato..........................................................................................................12

PHÇN IV: TÝNH TO¸N M¹CH TÕ...........................................................................12

39 .HÖ sè khe hë kh«ng khÝ kδ...................................................................................................12

41 .Søc tõ ®éng trªn khe hë kh«ng khÝ.......................................................................................13

42 .MËt ®é tõ th«ng ë r¨ng Stato ...............................................................................................13

PHÇN V: THAM SÈ CÑA ®ÉNG C¬ ®IÖN.............................................................15

60.ChiÒu dµi phÇn ®Çu nèi d©y quÊn Stato.................................................................................15

PHÇN VI: TÆN HAO TRONG THÐP V TÆN HAO C¬ Μ ......................................20

1. Träng lîng r¨ng Stato..............................................................................................................20

PHÇN VII: ®ÆC TÝNH L M VIÖC Μ ..........................................................................22

PHÇN VIII: ®ÆC TÝNH MË M¸Y.............................................................................24

92.Tham sè ®éng c¬ ®iÖn khi xÐt ®Õn hiÖu øng mÆt ngoµi cña dßng ®iÖn (khi s=1)................24

93.Tham sè cña ®éng c¬ ®iÖn khi xÐt ®Õn hiÖu øng mÆt ngoµi cña dßng ®iÖn vµ sù b·o hoµ cña

tõ trêng t¶n...................................................................................................................................26

96.Béi sè dßng ®iÖn khëi ®éng khi lµ:........................................................................................28

I-TÝnh to¸n khèi lîng ®éng c¬ b»ng visual Basic. 28

II-PhÇn vÏ CAD 3D ..............................................31

TrÇn Kh¸nh Hµ.............................................................................31

TrÇn kh¸nh Hµ...............................................................31

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ThiÕt kÕ §éng c¬ kh«ng ®ång bé 3 pha roto

Lång sãc .

C¸c th«ng sè ®Þnh møc

- C«ng suÊt ®Þnh møc: P®m =90 KW

- §iÖn ¸p ®Þnh møc: U®m =380/220 V

- Tæ ®Êu d©y: Y/∆

- TÇn sè lµm viÖc: f =50 Hz

- Sè ®«i cùc: 2p = 2

- KiÓu m¸y: kÝn, tù lµm m¸t b»ng qu¹t giã

- ChÕ ®é lµm viÖc liªn tôc

- CÊp c¸ch ®iÖn: F

- HiÖu suÊt: 0,92

- HÖ sè c«ng suÊt (cosϕ): 0,9

- Béi sè m« men cùc ®¹i: 2,2

- Béi sè m«men khëi ®éng : 1,2

- Béi sè dßng ®iÖn khëi ®éng: 7,5

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