1. A magnetic circuit with a single air gap is shown in Figure below. The core dimensions are: Cross - sectional area Ac = 1.8 x 10 m2 Mean core length lc = 0.6 m %3D Air gap length , = 2.3 x 103 %3D N = 83 turns Core: mean length 1 area Ae permeability u N turms Air gap Assuming the core is of infinite permeability ( u = 0 ) and neglecting the effects fringing; !! a) Calculate the reluctance of the core Re and that of the air gap Rg b) For a current of I = 1.5A, calculate the total flux o, flux density B and the coil inductance. %3D c) Repeat a and b for a finite core permeability of µ = 2500Ho.

1. A magnetic circuit with a single air gap is shown in Figure below. The core dimensions are: Cross - sectional area Ac = 1.8 x 10 m2 Mean core length lc = 0.6 m %3D Air gap length , = 2.3 x 103 %3D N = 83 turns Core: mean length 1 area Ae permeability u N turms Air gap Assuming the core is of infinite permeability ( u = 0 ) and neglecting the effects fringing; !! a) Calculate the reluctance of the core Re and that of the air gap Rg b) For a current of I = 1.5A, calculate the total flux o, flux density B and the coil inductance. %3D c) Repeat a and b for a finite core permeability of µ = 2500Ho.

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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