Need help with question 3 esc1tabQCockAF12IIISIQuestion 3. A 12-kVA, 480/120V, step-down ideal transformer is operating at its full load with a70.7% pf lagging. Determine (a) the secondary winding current magnitude and angle, (b) the loadimpedance seen from the primary (480V) side.Question 4. The following data were taken for a 46-kVA, 230/2300V, 60-Hz transformer:Voltage (V)Current (A)Power (W)Short-circuit test160201150Determine (a) the equivalent winding resistance ReH of the transformer at the high-voltage side,and (b) the copper loss at 50% load.ne47G18e

3)The given data is shown below:

Question 3. A 12-kVA, 480/120V, step-down ideal transformer is operating at its full load with a 70.7% pf lagging. Determine (a) the secondary winding current magnitude and angle, (b) the load impedance seen from the primary (480V) side.

Question 3. A 12-kVA, 480/120V, step-down ideal transformer is operating at its full load with a 70.7% pf lagging. Determine (a) the secondary winding current magnitude and angle, (b) the load impedance seen from the primary (480V) 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 3.16P: A single-phase, 50-kVA,2400/240-V,60-Hz distribution transformer has the following parameters:...

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Concept explainers

Single Phase Transformer

A single-phase transformer is a type of power transformer. It is an electrical device that accepts converts the single phase alternating power into single phase alternating power. In this power conversion the voltage is stepped up or down. If the voltage is stepped up, the current will be stepped down and if the voltage is stepped down, the current will be stepped up.

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Step 1: Summarize the given data:

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Step 3: Calculate the load impedance seen from the primary:

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