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Unformatted text preview: t i e as . Determine the bphase current and the airgap needed to achieve an airgap flux density of ( ) ) 4 8 / cos( 2 . 1 , s e s t t B + = . Problem 40 Rotating MMF The conductor turns density of a two phase machine is given by s bs s as n n 2 sin 100 2 cos 100 = = The a and bphase currents are given by ) 400 sin( 5 ) 400 cos( 5 t i t i bs as = = Express the total stator MMF. What is the speed and direction of the MMF ? Problem 41 Inductance Consider the example on page 5859 of the distributed winding lecture notes. Find the self magnetizing inductance of the aphase winding. How does this value compare to asbs L ?...
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This note was uploaded on 09/22/2011 for the course ECE 321 taught by Professor Staff during the Spring '08 term at Purdue UniversityWest Lafayette.
 Spring '08
 Staff

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