A ferromagnetic core is shown in Figure Pl-2. The depth of the core is 5 cm. The other dimensions ofthe core are as shown in the figure. Find the value of the current that will produce a flux of 0.005 Wb.With this current, what is the flux density at the top of the core? What is the flux density at the right sideof the core? Assume that the relative permeability of the core is 800.1-5.10 cm-5em20 em15 cm15 cm15 cmCoe depth - ScmSOLUTION There are three regions in this core. The top and bottom form one region, the left side forms asecond region, and the right side forms a third region. If we assume that the mean path length of the fluxis in the center of each leg of the core, and if we ignore spreading at the corners of the core, then the pathlengths are I, = 2(27.5 cm) = 55 cm, I, = 30 cm, and /, = 30 cm. The reluctances of these regions are:

As given in figure, there are three regions first: top and bottom region l1 =2102+20+52 =55 cm…

A ferromagnetic core is shown in Figure Pl-2. The depth of the core is 5 cm. The other dimensions of the core are as shown in the figure. Find the value of the current that will produce a flux of 0.005 Wb. With this current, what is the flux density at the top of the core? What is the flux density at the right side of the core? Assume that the relative permeability of the core is 800.

A ferromagnetic core is shown in Figure Pl-2. The depth of the core is 5 cm. The other dimensions of the core are as shown in the figure. Find the value of the current that will produce a flux of 0.005 Wb. With this current, what is the flux density at the top of the core? What is the flux density at the right side of the core? Assume that the relative permeability of the core is 800.

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 3.1MCQ: The Ohms law for the magnetic circuit states that the net magnetomotive force (mmf) equals the...

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