A 50Hz, single phase transformer has a ratio of N2:N1 = 0.2. On full-load, the secondary current is 200A. The resistance and reactance of the primary winding are 0.8 ohm and 4 ohm respectively. The corresponding values for the secondary winding are 0.04 ohm and 0.1 ohm. If the secondary is short circuited, what voltage must be applied to the primary to produce full-load current? What will be the copper loss?
A 50Hz, single phase transformer has a ratio of N2:N1 = 0.2. On full-load, the secondary current is 200A. The resistance and reactance of the primary winding are 0.8 ohm and 4 ohm respectively. The corresponding values for the secondary winding are 0.04 ohm and 0.1 ohm. If the secondary is short circuited, what voltage must be applied to the primary to produce full-load current? What will be the copper loss?
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 3.9P
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A 50Hz, single phase transformer has a ratio of N2:N1 = 0.2. On full-load, the secondary current
is 200A. The resistance and reactance of the primary winding are 0.8 ohm and 4 ohm respectively. The
corresponding values for the secondary winding are 0.04 ohm and 0.1 ohm. If the secondary is short circuited, what voltage must be applied to the primary to produce full-load current? What will be
the copper loss?
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