Exam4Solutions-Spring08

Exam4Solutions-Spring08 - Test 4 Solutions - Spring 2008 R1...

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Test 4 Solutions - Spring 2008 R 1 0.2 = R 2 0.05 = X 1 0.4 = X 2 0.4 = X M 10 = s 0.05 = V L 208 = P rated 10000 = P mech 300 = P core 200 = P misc 0 = f e 60 = P 4 = V φ V L 3 = _____________________________________________________________________________ a) Compute I A Z F j X M R 2 s j X 2 + j X M R 2 s + j X 2 + = Z F 0.916 0.473i + = Z F 1.031 = Z in R 1 j X 1 + Z F + = Z in 1.116 0.873i + = Z in 1.417 = I A V φ Z in = I A 84.762 = θ arg I A ( 29 = θ 180 π 38.023 - = _____________________________________________________________________________ b) Stator Copper Loss I A 84 e j - 36 π 180 = θ 36 π 180 = P SCL 3 I A ( 29 2 R 1 = P SCL 4.234 10 3 × = _____________________________________________________________________________ c) Air Gap Power I 2 j X M j X M R 2 s + j X 2 + I A = P AG 3 I 2 ( 29 2 R 2 s = P AG 1.94 10 4 × = The discrepancy in the air gap powers is because
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This note was uploaded on 07/28/2011 for the course EEL 3211 taught by Professor Staff during the Summer '08 term at University of Florida.

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Exam4Solutions-Spring08 - Test 4 Solutions - Spring 2008 R1...

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