Unformatted text preview: ⋅ = and we found previously: Z eqhs 16.53 132.3j + ( ) Ω ⋅ = Find the voltage regulation of the transformer if it is delivering rated current at a rated voltage and a power factor of 0.8 leading. Solution : First we must find rated current I srated S rated V srated = I srated 1.389 10 3 × amp = The actual current is at a power factor of 0.8 leading so the angle is: θ acos .8 ( )= θ 36.87deg = and the current is: I s I srated cos θ ( 29 ⋅ I srated sin θ ( 29 ⋅ j ⋅= I s 1.111 10 3 × 833.333j + amp = The actual secondary voltage is: V s 7200 volt ⋅ =...
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 Spring '12
 Piller
 Volt, Watt, Power factor, Ampere, secondary voltage

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