ECE320_2-11-09 - L l 1 = 21 (mH), and L l 2 = 19 (μH) Core...

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Transformer circuit for several example problems Turns ratio of 4000/120 Primary coil resistance R 1 = 1.6 ( ) Secondary coil resistance of R 2 = 1.44 (m ) Leakage flux that corresponds to L l 1 = 21 (mH), and L l 2 = 19 (μH) Core R c = 160 (k ) and L m = 450 (H) 60 (Hz), and V 2 = 120 (V) P 2 = 20 (kW) at pf = 0.85 lagging. + e 1 e 2 + N 1 N 2 i' 1 L i 2 m i 1 i 1, ex Ideal transformer L l 1 L l 2 R c R 1 R 2 V 2 + + V 1
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N 1 N 2 L m L l 1 R c R 1 L l 2 N 1 ( ) N 2 2 R 2 N 1 ( ) N 2 2 + V 1 V 2 + V' 2 +
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N 1 N 2 V' 1 + V 1 + L m L l 2 R c R 2 L l 1 N 2 ( ) N 1 2 R 1 N 2 ( ) N 1 2 V 2 + N 2 ( ) N 1 2 N 2 ( ) N 1 2 R eq + R' 2 + V 1 V' 2 + = R 1 L eq + L' l 2 = L l 1 i 1 V' 1 + V 2 + R eq + R 2 = R' 1 L eq + L l 2 = L' l 1
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Transformer circuit for several example problems Turns ratio of 4000/120 Primary coil resistance R 1 = 1.6 ( ) Secondary coil resistance of R 2 = 1.44 (m ) Leakage flux that corresponds to
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Unformatted text preview: L l 1 = 21 (mH), and L l 2 = 19 (μH) Core R c = 160 (k Ω ) and L m = 450 (H) 60 (Hz), and V 2 = 120 (V) P 2 = 20 (kW) at pf = 0.85 lagging. Transformer circuit for several example problems Turns ratio of 4000/120 Primary coil resistance R 1 = 1.6 ( Ω ) Secondary coil resistance of R 2 = 1.44 (m Ω ) Leakage flux that corresponds to L l 1 = 21 (mH), and L l 2 = 19 (μH) Core R c = 160 (k Ω ) and L m = 450 (H) 60 (Hz), and V 2 = 120 (V) P 2 = 20 (kW) at pf = 0.85 lagging....
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This note was uploaded on 05/30/2009 for the course ECE ECE320 taught by Professor Timhogan during the Spring '09 term at Michigan State University.

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ECE320_2-11-09 - L l 1 = 21 (mH), and L l 2 = 19 (μH) Core...

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