Mathcad - 05-13 - kVA kW kVAR kW Srated := 75 kVA Problem...

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Z eqs R p j X p + a 2 R s j X s + ( 29 + = Z eqs 0.14 0.201j + = θ acos F p ( 29 - = θ 36.87 - deg = The transformer delivers rated voltage so: V fl V srated = V fl 480V = At full load, the current is: I s S rated V fl e j θ = I s 125 93.75j - A = The primary voltage, referred to the secondary side at full load, is calculated by adding the drop across the equivalent impedance (caused by the load current) to the secondary full load voltage V referredp V fl I s Z eqs + = V referredp 516.348 11.929j + V = V referredp 516.486V = which is the no load voltage V nl V referredp
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This note was uploaded on 03/26/2012 for the course ECET 231 taught by Professor Piller during the Spring '12 term at Purdue University-West Lafayette.

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