DHA) a) Draw an equivalent circuitof a current transformer andderive expressions for ratio andphase angle errors.b) Discuss the effects of thefollowing in the errors of a C.T.:(a) P.f. of secondary burden(b) Change in primary current(c) Change in secondaryburden(d) Change in frequency

Equivalent circuit of current transformer The equivalent circuit and phasor diagram of current…

Answered: DHA) a) Draw an equivalent circuit of a…

Engineering

Electrical Engineering

DHA) a) Draw an equivalent circuit of a current transformer and derive expressions for ratio and phase angle errors.

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 3.26MCQ: In per-unit equivalent circuits of practical three-phase transformers, under balanced thr-phase...

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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

DHA) a) Draw an equivalent circuit
of a current transformer and
derive expressions for ratio and
phase angle errors.
b) Discuss the effects of the
following in the errors of a C.T.:
(a) P.f. of secondary burden
(b) Change in primary current
(c) Change in secondary
burden
(d) Change in frequency

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