IRWIN 9e 11_12 - Irwin Basic Engineering Circuit Analysis...

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Unformatted text preview: Irwin, Basic Engineering Circuit Analysis, 9/E 1 11.12 In a balanced three-phase system, the nine-phase- sequence source is delta connected and Var: = 121‘.) {EDP V [1115.1113 [cad ccnsists nt' twc ha]— anced wyes with phase impedances cf 11‘.) + jl fl. and 2‘3 + jfi [1. If the line impedance is zero, find the line currents and the load phase vnltage. SOLUTION: e 0 Val; _ [20 430 V/cms El : lbs—jig ‘— 21: 204—5511. 2 ’ = 122. L301 30" Van \rB" V001“ 69- 23199 V/imj OIL . - (me. " 5 1S 2 In. z van = 69-260": 6-89L-5'7/0A i v + Z, /0 J1 i = \7 _ ° ANL 3n , 6‘?- 23L0 ; 3.36L—M-OHOA 2" go+J5 .pn — o —, 1 fl, 0 I”; Tn~,.+ IAN; ,_ 6.89L57/+3864909 IQA 3 IO~23 (fa-(life Atmg Chapter 11: Polyphase Circuits Problem 11.12 Inivin, Basic Engineering Circuit Analysis. 9/E [0-23 L’IQ-BA 49° A ALMS H w a (I 10.23 L111. 56° A zamg Hi n (3 “ ______________.__—._—___—————— Problem 11.12 Chapter 11: Polyphase Circuits ...
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