Consider the magnetic core as shown in Figure 1.1 The coil has 500 turns and the...
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Consider the magnetic core as shown in Figure 1.1 The coil has 500 turns and the core material is Sheet Steel with the magnetization curve given in Figure 1.2. The cross-sectional area of the central limb is 800 mm2 and that of each outer limb is 600 mm2. Neglect magnetic leakage and fringing. Calculate the exciting current needed to set up a flux of 0.8 mWb in the air gap by applying the principles of magnetic circuits. Show all workings. I I 400 mm I I + Air gap 1 mm 160 mm 1 I I I 400 mm 2.0 1.8 1.6 1.4 2 1.0 0.8 0.6 0.4 0.2 48(T) 0 300 600 900 1200 1500 1800 2100 2400 2700 Cast iron Sheet steel Cast steel 3000 3300 3600 3900 4200 4,500 H(AV/m) Consider the magnetic core as shown in Figure 1.1 The coil has 500 turns and the core material is Sheet Steel with the magnetization curve given in Figure 1.2. The cross-sectional area of the central limb is 800 mm2 and that of each outer limb is 600 mm2. Neglect magnetic leakage and fringing. Calculate the exciting current needed to set up a flux of 0.8 mWb in the air gap by applying the principles of magnetic circuits. Show all workings. I I 400 mm I I + Air gap 1 mm 160 mm 1 I I I 400 mm 2.0 1.8 1.6 1.4 2 1.0 0.8 0.6 0.4 0.2 48(T) 0 300 600 900 1200 1500 1800 2100 2400 2700 Cast iron Sheet steel Cast steel 3000 3300 3600 3900 4200 4,500 H(AV/m)
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The total magnetic path length is L 2 400 mm 1 mm 801 mm The relative permeability of sheet steel is ... View the full answer
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