The following data are obtained when open-circuit and short-circuit tests are performed on a single-phase, 50 kVA, 2400/240 volt, 60 Hz distribution transformer. VOLTAGE CURRENT POWER (volts) (amperes) (watts) Measurements on low-voltage side with high-voltage winding open Measurements on high-voltage side with low-voltage winding shorted 240 4.85 173 52.0 20.8 650 a) Neglecting the series impedance, determine the exciting admittance referred to the high voltage side. b) Neglecting the exciting admittance, determine the equivalent series impedance referred to the high voltage side.

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 3.35P: Consider a bank of this single-phase two-winding transformers whose high-voltage terminals are...
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PLEASE SOLVE THIS POWER SYSTEM QUESTION
The following data are obtained when open-circuit and short-circuit tests are
performed on a single-phase, 50 kVA, 2400/240 volt, 60 Hz distribution
transformer.
VOLTAGE
CURRENT
POWER
(volts)
(amperes)
(watts)
Measurements on low-voltage side with
high-voltage winding open
Measurements on high-voltage side
with low-voltage winding shorted
240
4.85
173
52.0
20.8
650
a) Neglecting the series impedance, determine the exciting admittance
referred to the high voltage side.
b) Neglecting the exciting admittance, determine the equivalent series
impedance referred to the high voltage side.
Transcribed Image Text:The following data are obtained when open-circuit and short-circuit tests are performed on a single-phase, 50 kVA, 2400/240 volt, 60 Hz distribution transformer. VOLTAGE CURRENT POWER (volts) (amperes) (watts) Measurements on low-voltage side with high-voltage winding open Measurements on high-voltage side with low-voltage winding shorted 240 4.85 173 52.0 20.8 650 a) Neglecting the series impedance, determine the exciting admittance referred to the high voltage side. b) Neglecting the exciting admittance, determine the equivalent series impedance referred to the high voltage side.
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