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16.4.2012Sinhronski stroj - navitjaKer je generator vezan v zvezdo, ima medfazna napetost vrednostN12U = Uf 3 = 3 e z fn= 3⋅47,983 4⋅0,965926= 1284 Vm3109Sinhronski stroj - navitjaIzračunajte faktor navitja in narišite razvito shemo za naslednjenavitje: N=24, 2 p=4, s=τ p in m=3α g360°360°= = = 15°N 24α = p = 2 ⋅15°= 30°τ peα gN 24= = = 62 p 4τq =p 6 = = 2 m 3110Sinhronski stroj - navitjaPasovni faktor:30sin⎛ αe⎞sin⎛ °2⎞⎜q⎟ ⎜ ⎟⎝ 2 ⎠ ⎝ 2f⎠p= = = 0,96592630sin⎛αe⎞2 sin⎛ °q⎞⎜ ⎟ ⎜ ⎟⎝ 2 ⎠ ⎝ 2 ⎠⎛ s ⎞ 6f sin ⎜90⎟ sin⎛90⎞s=°= ⎜ ° ⎟ = 1⎝ τp ⎠ ⎝ 6⎠Faktor navitja:fn= fpfs= 0,96592611137
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