KichTuDocLap (35).pdf

# KichTuDocLap (35).pdf - Đồ án điện tử công suất...

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Đồ án đ i n t công su t 34 ChiÒu d μ i d©y quÊn thø cÊp ; l 2 = π .W 2 .D tb2 = π . 309 .13,21 = 12817,13(cm) = 128,17(m) f.TÝnh c¸c th«ng sè cña m¸y biÕn ¸p - §iÖn trë trong cña cuén s¬ cÊp MBA ë 75 0 C 1 1 2 1 l 133,35(m) R = ρ = 0,02133. = 1,31 ( ) S 2,17(mm ) 2 ρ = 0,02133( mm /m) -§iÓn trë cuén thø cÊp ë 75 0 C 2 2 2 2 l 128,17(m ) R = ρ = 0,02133. = 0,92 ( ) S 2,97(m m ) Ω -§iÖn trë cña m¸y biÕn ¸p quy ®æi vÒ thø cÊp 2 2 2 2 1 ba 1 W 309 R = R +R .( ) = 0,92+1,31.( ) = 1,62( ) W 423 -Sôt ¸p trªn ®iÖn trë biÕn ¸p r ba d Δ U = R .I = 1,62.10=16,2 (V) -§iÖn kh¸ng MBA quy ®æi vÒ thø cÊp
• Spring '16
• Stephanie Moore

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