Example 19. Starting from the ideal transformer, obtain the approximate equivalentcircuit of a commercial transformer in which all the constants are lumped andrepresented on one side. A 1-phase transformer has a turn ratio of 6. The resistanceand reactance of primary winding are 0.9 Q and 5 Q respectively and those of thesecondary are 0.03 N and 0.13 N respectively. If 330 -V at 50-Hz be applied to thehigh voltage winding with the low-voltage winding short circuited, find the current inthe low-voltage winding and its power factor. Neglect magnetizing current.

The Turns ratio of the transformer = 6 The resistance and Reactance on the primary side are R1 =…

Example 19. Starting from the ideal transformer, obtain the approximate equivalent circuit of a commercial transformer in which all the constants are lumped and represented on one side. A 1-phase transformer has a turn ratio of 6. The resistance and reactance of primary winding are 0.9 2 and 5 2 respectively and those of the secondary are 0.03 N and 0.13 Q respectively. If 330 -V at 50-Hz be applied to the high voltage winding with the low-voltage winding short circuited, find the current in the low-voltage winding and its power factor. Neglect magnetizing current.

Example 19. Starting from the ideal transformer, obtain the approximate equivalent circuit of a commercial transformer in which all the constants are lumped and represented on one side. A 1-phase transformer has a turn ratio of 6. The resistance and reactance of primary winding are 0.9 2 and 5 2 respectively and those of the secondary are 0.03 N and 0.13 Q respectively. If 330 -V at 50-Hz be applied to the high voltage winding with the low-voltage winding short circuited, find the current in the low-voltage winding and its power factor. Neglect magnetizing current.

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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