Flux density B, Wb/m² 2. The magnetization curves of two ferromagnetic materials (Soft-steel casting and M-19 29 Gage sheets) are shown below. 2.0 1.9 2.0 1.9 1.8 1.8 1.7 M-19 29 Gage sheets 1.7 1.6 Soft steel casting! 1.6 1.5 1.5 1.4 1.4 1.3 1.3. 1.2 1.2 1.1 1.1 1.0 0.9 0.8 1.0 -0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 1000 2000 3000 4000 5000 6000 7000 Magnetizing intensity H, A-turn/m 0.7 0.6 -0.5 0.4 0.3 -0.2 0.1 (a) Estimate the permeability (p) and the relative permeability (μ) of these two materials in their linear region. (Hint: μ is the slop of B vs H curve.) (b) With reference to above figure, assume that the maximum flux density which still keeps the material in its linear magnetic region is 1.1 T (for both materials). An inductor is build with each material. Its core is = 10 cm long with the cross-sectional area of A = 1 cm². The winding has N = 100 turns. For both inductors, find the following values. (b-1) The inductance L. (b-2) The maximum peak of an ac 60 Hz voltage which still keeps the inductor within its linear region. (Hint: v(t) = NdVmax = Nwomax, w = 2πf) (b-3) The peak of excitation current when the maximum voltage is applied..

Flux density B, Wb/m² 2. The magnetization curves of two ferromagnetic materials (Soft-steel casting and M-19 29 Gage sheets) are shown below. 2.0 1.9 2.0 1.9 1.8 1.8 1.7 M-19 29 Gage sheets 1.7 1.6 Soft steel casting! 1.6 1.5 1.5 1.4 1.4 1.3 1.3. 1.2 1.2 1.1 1.1 1.0 0.9 0.8 1.0 -0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 1000 2000 3000 4000 5000 6000 7000 Magnetizing intensity H, A-turn/m 0.7 0.6 -0.5 0.4 0.3 -0.2 0.1 (a) Estimate the permeability (p) and the relative permeability (μ) of these two materials in their linear region. (Hint: μ is the slop of B vs H curve.) (b) With reference to above figure, assume that the maximum flux density which still keeps the material in its linear magnetic region is 1.1 T (for both materials). An inductor is build with each material. Its core is = 10 cm long with the cross-sectional area of A = 1 cm². The winding has N = 100 turns. For both inductors, find the following values. (b-1) The inductance L. (b-2) The maximum peak of an ac 60 Hz voltage which still keeps the inductor within its linear region. (Hint: v(t) = NdVmax = Nwomax, w = 2πf) (b-3) The peak of excitation current when the maximum voltage is applied..

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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