Q5-(A)- Explain briefly the following questions2What are the reasons for connecting transformers in parallel operation?Why are the brushes of d.c machine always placed at the magnetic neutral axis?3- Why the iron losses are constant during load and no-load?11(B)- The open circuit and short circuit tests on a 10 KVA, 125/250 V ,50 Hzsingle phase transformer gave the following results:O.C. Test: 125 V, 0.6 A, 50 W (on L.V. side)S.C. Test: 20 V, 40 A, 177.78 W (on H.V. side)Calculate: (i) Magnetizing current (I),(ii) The voltage regulation on full load, 0.9 leading p.f.

The transformer is an electrical device which is used to convert the voltage magnitude in a…

Q5-(A)- Explain briefly the following questions What are the reasons for connecting transformers in parallel operation? Why are the brushes of d.c machine always placed at the magnetic neutral axis? 3- Why the iron losses are constant during load and no-load?

Q5-(A)- Explain briefly the following questions What are the reasons for connecting transformers in parallel operation? Why are the brushes of d.c machine always placed at the magnetic neutral axis? 3- Why the iron losses are constant during load and no-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 3.28MCQ

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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.

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