Q2. Consider the single-phase transformer circuit shown below. Transformer ratings and reactances are: Transformer A : 200 kVA, 250 / 750 V , X = 0.10 p.u. Transformer B : 100 kVA , 900 / 300 V , X= 0.15 p.u. The transmission line can be represented as a series impedance Zine 0.4 +j 0.6 N. Choose a base of 200 kVA, 250 V in the voltage source ( V, ) circuit. (a) Draw the impedance diagram for this circuit, with all impedances in per unit. (b) Find the load voltage in per unit and in volts when the source voltage is V.-120° pu. (c) Find the transmission line current (IL) in amperes. transmission line A (Zn-0.4 + j0.6 N) B "line IL Z=0.5 + j0.2 Q Leeee lell Leeee
Q2. Consider the single-phase transformer circuit shown below. Transformer ratings and reactances are: Transformer A : 200 kVA, 250 / 750 V , X = 0.10 p.u. Transformer B : 100 kVA , 900 / 300 V , X= 0.15 p.u. The transmission line can be represented as a series impedance Zine 0.4 +j 0.6 N. Choose a base of 200 kVA, 250 V in the voltage source ( V, ) circuit. (a) Draw the impedance diagram for this circuit, with all impedances in per unit. (b) Find the load voltage in per unit and in volts when the source voltage is V.-120° pu. (c) Find the transmission line current (IL) in amperes. transmission line A (Zn-0.4 + j0.6 N) B "line IL Z=0.5 + j0.2 Q Leeee lell Leeee
Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter3: Power Transformers
Section: Chapter Questions
Problem 3.26P: A bank of three single-phase transformers, each rated 30MVA,38.1/3.81kV, are connected in Y- with a...
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