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

Chapter10: System Protection

Section: Chapter Questions

Problem 10.26P

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