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Avditorne vaje - LES

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16.4.2012Sinhronski stroj - kazalčni diagramSinhronski turbogenerator s podatki S n=6,3 MVA, U 2n=10 kV, f=50Hz, I 1n=50 A, cos(ϕ n)=0,7, in X sr=1,2, je vzbujen za prosti tek. Alilahko generator obremenimo z nazivno navidezno močjo, ne da bipri tem spremenili vzbujanje? Kolikšna sta kolesni kot δ in kot ϕ 2?Vse količine tega obratovalnega stanja so v okviru dovoljenihvrednosti:1. Napetost indukta U 2 =U 2n2. Tok indukta I 2 =I 2n3. Vzbujalni tok I 1

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