3. Three single-phase, 10 kVA, 460/120 V, 60 Hz transformers are connected to form a three-phase 460/208 V transformer bank. The equivalent impedance of each transformer referred to the HV side is ZtHV = 2.236163.4349°. The transformer delivers 20 kW at 0.8 PF (Leading). a) Draw a three-phase schematic diagram showing the transformer connection. b) Determine the transformer winding currents. c) Determine the primary voltage. d) Determine the voltage regulation.

3. Three single-phase, 10 kVA, 460/120 V, 60 Hz transformers are connected to form a three-phase 460/208 V transformer bank. The equivalent impedance of each transformer referred to the HV side is ZtHV = 2.236163.4349°. The transformer delivers 20 kW at 0.8 PF (Leading). a) Draw a three-phase schematic diagram showing the transformer connection. b) Determine the transformer winding currents. c) Determine the primary voltage. d) Determine the voltage regulation.

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 3.10P: A single-phase step-down transformer is rated 13MVA,66kV/11.5kV. With the 11.5 kV winding...

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Similar questions

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