A 15-KVA,2400/240-V transformer is to be tested to determine its excitation branch components,its series impedence and its voltage regulation.The following test data have been taken from the primary side of the transformer: *Open circuit test Voc=2400V loc=0.25 Poc=50W *short circuit test Vsc=48V Isc=6.0A Psc=200W The data have been taken by using the connection of open circuit test and short circuit test: a)Find the equivalent circuit of the transformer referred to the high voltage side. b)Find the equivalent circuit of transformer referred to the low voltage side. c)Calculate the full load voltage regulation at 0.8 lagging power factor and 0.8 leading power factor. What is the efficiency of the transformer at full load with a power factor of 0.8 lagging
A 15-KVA,2400/240-V transformer is to be tested to determine its excitation branch components,its series impedence and its voltage regulation.The following test data have been taken from the primary side of the transformer: *Open circuit test Voc=2400V loc=0.25 Poc=50W *short circuit test Vsc=48V Isc=6.0A Psc=200W The data have been taken by using the connection of open circuit test and short circuit test: a)Find the equivalent circuit of the transformer referred to the high voltage side. b)Find the equivalent circuit of transformer referred to the low voltage side. c)Calculate the full load voltage regulation at 0.8 lagging power factor and 0.8 leading power factor. What is the efficiency of the transformer at full load with a power factor of 0.8 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 3.16P: A single-phase, 50-kVA,2400/240-V,60-Hz distribution transformer has the following parameters:...
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A 15-KVA,2400/240-V transformer is to be tested to determine its excitation branch components,its series impedence and its voltage regulation.The following test data have been taken from the primary side of the transformer:
*Open circuit test
Voc=2400V
loc=0.25
Poc=50W
*short circuit test
Vsc=48V
Isc=6.0A
Psc=200W
The data have been taken by using the connection of open circuit test and short circuit test:
a)Find the equivalent circuit of the transformer referred to the high voltage side.
b)Find the equivalent circuit of transformer referred to the low voltage side.
c)Calculate the full load voltage regulation at 0.8 lagging power factor and 0.8 leading power factor.
What is the efficiency of the transformer at full load with a power factor of 0.8 lagging ?
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