A 300 KVA 1-ph transformer is designed to have a resistance of 1.8% and maximumefficiency occurs at a load of 180 kVA. Find its efficiency when supplying full load at 0.8p. f. lagging.

According to the question we have to find the efficiency when supplying full load with the help of…

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A 300 KVA 1-ph transformer is designed to have a resistance of 1.8° efficiency occurs at a load of 180 kVA. Find its efficiency wvhen supplying full load at 0.8 n. f. lagging,

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 3.3MCQ: For an ideal 2-winding transformer, the ampere-turns of the primary winding, N1I1 is equal to the...

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Concept explainers

Maximum power transfer theorem

A resistive load will consume maximum power from a network when the load resistance is equal to the resistance of the network as viewed from the open-circuit terminals, with all energy sources removed leaving only the internal resistances. Physicist Moritz von Jacobi introduced the maximum power transfer theorem in 1940. Therefore, this theorem is also known as Jacobi's law.

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A 300 KVA 1-ph transformer is designed to have a resistance of 1.8% and maximum
efficiency occurs at a load of 180 kVA. Find its efficiency when supplying full load at 0.8
p. f. lagging.

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