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This paper describes the design of a switched reluctance motor for portable power tools by means of numerical field calculations. The motor was designed for a nominal speed range from 7,500 rpm to 15,000 rpm and a rated torque of 2.25 Nm. The rated output power of the motor is 2,945 W, thus 2,700 W are available after the gears in continuous operation. Motor speed and gear ratios are adjustable. The...
Based on Bergeron's theory, a graphical and analytical method has been worked out to determine the dynamic load characteristic and load transients for a time-varying load impedance, pulsed by a lossless transmission line. The analytical solution has been compared with the numerical solution of the network analysis code SCEPTRE. A parametric study for a time-decreasing load function, demonstrated by...
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