a) A flux 0.1 mWb links with a coil of 3500 turnswhen a current of 2.5 Ampere passes through thecoil. Find the following(i) Inductance of the coil,(ii) the energy stored by the inductor,(iii) the voltage developed across the coil, if thecurrent through the coil is interrupted in 55 ms.b) A single phase, 50 Hz transformer rated withpower of 25 kVA has voltage ratio of 5000/250 V. Ifthe low voltage side has 150 turns, Determine(i) the primary current,(ii) the secondary current,(iii) the number of turns in High voltage side,(iv) maximum value of flux.

In this question we will find inductance , energy stored and voltage developed across coil... Note:-…

) A flux 0.1 mWb links with a coil of 3500 turns vhen a current of 2.5 Ampere passes through the coil. Find the following i) Inductance of the coil, ii) the energy stored by the inductor, iii) the voltage developed across the coil, if the current through the coil is interrupted in 55 ms.

) A flux 0.1 mWb links with a coil of 3500 turns vhen a current of 2.5 Ampere passes through the coil. Find the following i) Inductance of the coil, ii) the energy stored by the inductor, iii) the voltage developed across the coil, if the current through the coil is interrupted in 55 ms.

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 3.3P: Consider an ideal transformer with N1=3000andN2=1000 turns. Let winding 1 be connected to a source...

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Concept explainers

Power Measurement

According to Blondel's theorem, the total power is measured with one less number of wattmeters than the number of wires present in the system. So, a single-phase and two-wire system will require one wattmeter and a single-phase and the three-wire system will require two wattmeters, and a three-phase and the three-wire system will also require two wattmeters and a three-phase and the four-wire system will require three wattmeter devices. The wattmeter is a device that measures power using one voltage and one current input as shown in the above figure. Multiple current or voltage input pair cables are used by many power analyzers and digital storage oscilloscopes (DSOs) for measuring watts, in effect within a single instrument acting as multiple wattmeters. It is possible to measure three-phase and four-wire power with one correctly specified power analyzer.

Question

a) A flux 0.1 mWb links with a coil of 3500 turns
when a current of 2.5 Ampere passes through the
coil. Find the following
(i) Inductance of the coil,
(ii) the energy stored by the inductor,
(iii) the voltage developed across the coil, if the
current through the coil is interrupted in 55 ms.
b) A single phase, 50 Hz transformer rated with
power of 25 kVA has voltage ratio of 5000/250 V. If
the low voltage side has 150 turns, Determine
(i) the primary current,
(ii) the secondary current,
(iii) the number of turns in High voltage side,
(iv) maximum value of flux.

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