The core of a simple de motor is shown

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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The core of a simple de motor is shown in Figure Q1. Assume that the effective cross
section area of each air gap is 18 cm² and the length of each air gap is 0.05cm. The
effective diameter of the rotor core is 4 cm and the cross section area of the iron core is
16 cm?. The relative permeability of the stator and rotor cores is 3800;
i. Determine the total reluctance of the magnetic circuit.
ii. Determine the value of the current that will produce a flux of 0.002 Wb.
30 cm
Scm
1000 turns
4 cm
:5cm
30 cm ..
A = 16 cm?
%3D
Figure Q1
Transcribed Image Text:The core of a simple de motor is shown in Figure Q1. Assume that the effective cross section area of each air gap is 18 cm² and the length of each air gap is 0.05cm. The effective diameter of the rotor core is 4 cm and the cross section area of the iron core is 16 cm?. The relative permeability of the stator and rotor cores is 3800; i. Determine the total reluctance of the magnetic circuit. ii. Determine the value of the current that will produce a flux of 0.002 Wb. 30 cm Scm 1000 turns 4 cm :5cm 30 cm .. A = 16 cm? %3D Figure Q1
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