6. A 125 kVA transformer having a primary voltage of 2000 V at 50 Hz has 182 primary turns and 40 secondary turns. Neglecting losses, calculate (a) the full load primary and secondary current (b) the no-load secondary induced emf. [Ans. (a) 62.5 A, 284.4 A (b) 439.5 V]

6. A 125 kVA transformer having a primary voltage of 2000 V at 50 Hz has 182 primary turns and 40 secondary turns. Neglecting losses, calculate (a) the full load primary and secondary current (b) the no-load secondary induced emf. [Ans. (a) 62.5 A, 284.4 A (b) 439.5 V]

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 3.6P

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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.

Question

A 125 kVA transformer having a primary voltage of 2000 V at 50 Hz has 182 primary turns and 40
secondary turns. Neglecting losses, calculate (a) the full load primary and secondary current (b) the
no-load secondary induced emf.
6.
[Ans. (a) 62.5 A, 284.4 A (b) 439.5 V]

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