IRWIN 9e 11_67 - Irwin, Basic Engineering Circuit Analysis,...

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Unformatted text preview: Irwin, Basic Engineering Circuit Analysis, 91E 1 11.6? A balanced three-phase source supplies power to three loads. The loads are Load 1: 24 kW at [LE pf logging Load 2: ll] ltVA at 4].?" pf leading Load 3: unknown If the line voltage at the load is 333 V mm, the magni— tude of the total complex power is 41.93: RNA, and the combined power factor at the load is 1186 lagging, find the unknown load. SOLUTION: Loadi: 24—kNM’ 0.8 P? W .0 Loadzz iob/A also? PF [141491116 Load3,‘ UAWW’W pm ’ - ° 0" Vim/vs VAN' 3%40w‘ [20L 3 ..- .3k VA {Ta—s») 4'? PFT= 0'56 “757"”? L 24k 3 aokVA .— ’ _,_....——-— \A'3»t25!= pp MB z 20 8 thfl ,. 4 _ . b 51 _-. 30k. L094 (0‘8)’30L56 6? [WA 3—? b i * lok L'wf'éfiv'f): IDA-96.5? KVA 8‘34) - 3 = 41'93k4w4”(0454) T5’¢ g = Ari-93 30.680 KVA 73-5,) A Chapter 11: Polyphase Circuits Problem 11.67 2 Irwin. Basic Engineering Circuit Analysis. 9/E ’ -" —- ‘— = 5 -S __ 3 ' 2-3,¢ .— 33 ¢ = 4i-9ak 430168130k 136.871/024g4ggf 3- r z 64'. 3 a 533") H a L L! kVA pp; vac/s 64m 39” W; o - 9/33 (nifty Dow”; “.59 KVA at 0-933 PP Problem 11.67 Chapter 11: Polyphase Circuits ...
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IRWIN 9e 11_67 - Irwin, Basic Engineering Circuit Analysis,...

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