a) What is the complex power drawn and delivered by the transformer? (b) Draw a per-phase equivalent circuit diagram showing the R1eq resistance and X1eq reactance on the primary side. Calculate the values of these equivalent circuit components. (c) Calculate the losses of the transformer delivering 1500 kVA at a power factor of 0.82 lagging
a) What is the complex power drawn and delivered by the transformer? (b) Draw a per-phase equivalent circuit diagram showing the R1eq resistance and X1eq reactance on the primary side. Calculate the values of these equivalent circuit components. (c) Calculate the losses of the transformer delivering 1500 kVA at a power factor of 0.82 lagging
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 3.27P: A three-phase transformer is rated 1000MVA,220Y/22kV. The Y-equivalent short-circuit impedance,...
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A 3-phase 1 kV / 33 kV, 50 Hz, step-up transformer is connected as Yy0 and delivers 1500 kVA at 33 kV with a power factor of 0.82 lagging to a transmission system. The transformer is supplied with 1.022 kV at a power factor of 0.81 lagging. The magnetising reactance and core losses of the transformer are assumed to be negligible. (a) What is the complex power drawn and delivered by the transformer? (b) Draw a per-phase equivalent circuit diagram showing the R1eq resistance and X1eq reactance on the primary side. Calculate the values of these equivalent circuit components. (c) Calculate the losses of the transformer delivering 1500 kVA at a power factor of 0.82 lagging.
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