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Avditorne vaje - LES

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16.4.2012Sinhronski stroj - navitjaPomen kota α e , če se rotor vrtiv smeri urinega kazalca.85Število utorov pod enimpolom:τ pN 12= = = 62 p 2Število utorov, ki poenim polom pripadajoeni fazi (število utorov vpasu):τ 6q =p= = 2 m 3Sinhronski stroj - navitja86Pasovni faktor:Sinhronski stroj - navitja30sin⎛ αe⎞sin⎛ °2⎞⎜q⎟ ⎜ ⎟⎝ 2 ⎠ ⎝ 2f⎠p= = = 0,96592630sin⎛αe⎞2 sin⎛ °q⎞⎜ ⎟ ⎜ ⎟⎝ 2 ⎠ ⎝ 2 ⎠Faktor skrajšanja: širina tuljavice je enaka τ p , kar pomeni, da navitjeni skrajšano. Takšne tuljavice imenujemo premerske tuljavice:⎛ s ⎞ 6f sin ⎜90⎟ sin⎛90⎞s=°= ⎜ ° ⎟ = 1⎝ τp ⎠ ⎝ 6⎠Faktor navitja:f f f = 0,96592687n=p s29

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