A 2300V to 230V step down transformer is rated at 750 KVA and 60 Hz. Its winding have the following resistances and inductances: Re' =0.093 ohm Re" = 0.00093 ohm Xe' =0.280 ohm Xe" =0.0028 ohm The transformer is operating on rated load.

A 2300V to 230V step down transformer is rated at 750 KVA and 60 Hz. Its winding have the following resistances and inductances: Re' =0.093 ohm Re" = 0.00093 ohm Xe' =0.280 ohm Xe" =0.0028 ohm The transformer is operating on rated load.

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 3.14MCQ: The ideal transformer windings are eliminated from the per-unit equivalent circuit of a transformer....

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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 2300V to 230V step down transformer is rated at 750 KVA and 60 Hz. Its winding
have the following resistances and inductances:
Re' =0.093 ohm Re" = 0.00093 ohm
Xe' =0.280 ohm
Xe" =0.0028 ohm
The transformer is operating on rated load.

Referring to Prob 1
The Primary and Secondary Impedances respectively are:
29.5 ohms and 0.295 ohm
0.295 ohm and O.00295 ohm
295 ohms and 29.5 ohms
.000295 ohm and 0.295 ohm

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