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.

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 3.56P: Three single-phase two-winding transformers, each rated 3kVA,220/110volts,60Hz, with a 0.10 per-unit...

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Concept explainers

Compensation Techniques

The compensation techniques are the methods that are employed in the electrical control systems to enhance the performance of the system. The performance are generally affected by the factors like lag in the compensating devices, slow response of the system of the components like sensors used in the control system. The basic compensation technique involves lag compensation, lead compensation or the combination of the both.

Question

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.

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