Two transformers A and B are connected in parallel to a load of (2+j1.5) ohms. Theirimpedances in secondary terms are ZA= (0.15+j0.5) ohm and ZB = (0.1+j0.6) ohm. Theirno-load terminal voltages are Ex=207 volt and EB-205 volt. Find the power output and powerfactor of each transformer.

Given,ZL = 2+j1.5 ΩZA=0.15+j0.5 ΩZB=0.1+j0.6 ΩEA=207 VEB =205 V

Two transformers A and B are connected in parallel to a load of (2+j1.5) ohms. Their impedances in secondary terms are Z₁ = (0.15+j0.5) ohm and ZB = (0.1+j0.6) ohm. Their no-load terminal voltages are E₁-207 volt and Eg=205 volt. Find the power output and power factor of each transformer.

Two transformers A and B are connected in parallel to a load of (2+j1.5) ohms. Their impedances in secondary terms are Z₁ = (0.15+j0.5) ohm and ZB = (0.1+j0.6) ohm. Their no-load terminal voltages are E₁-207 volt and Eg=205 volt. Find the power output and power factor of each transformer.

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 3.26P: A bank of three single-phase transformers, each rated 30MVA,38.1/3.81kV, are connected in Y- with a...

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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

Two transformers A and B are connected in parallel to a load of (2+j1.5) ohms. Their
impedances in secondary terms are ZA= (0.15+j0.5) ohm and ZB = (0.1+j0.6) ohm. Their
no-load terminal voltages are Ex=207 volt and EB-205 volt. Find the power output and power
factor of each transformer.

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