Consider a current transformer with a turns ratio of 400: 4, a secondary leakage impedance of (0.08 + j0.8) Q and a resistive burden of 3.0 Q. If the magnetizing impedance is (6.0 + j16) Q. Calculate the per unit CT error and the ratio correction factor in phasor form.

Consider a current transformer with a turns ratio of 400: 4, a secondary leakage impedance of (0.08 + j0.8) Q and a resistive burden of 3.0 Q. If the magnetizing impedance is (6.0 + j16) Q. Calculate the per unit CT error and the ratio correction factor in phasor form.

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 3.4P: A single-phase 100-kVA,2400/240-volt,60-Hz distribution transformer is used as a step-down...

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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

Consider a current transformer with a turns ratio of 400: 4, a secondary leakage impedance of (0.08+
j0.8) Q and a resistive burden of 3.0 Q. If the magnetizing impedance is (6.0 + j16) N. Calculate the per
unit CT error and the ratio correction factor in phasor form.

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