(a) What is per unit system? Write different expressions that may be…

Question

(a) What is per unit system? Write different expressions that may be useful in per unit system for single phase and three phase systems. Derive the necessary expressions.

(b) Show that the $p.u.$ equivalent impedance of a two winding transformer is same on both sides whether the calculation is made from the low voltage side or from the high voltage side.

Related pages

• Per Unit Calculations — topic
• Power System-II syllabus

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