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1.6The armature of a 6-pole de machine is 80 cm long and has a diameter of 50 cm .The maximum air gap flux density is 1.5 T .The pole arc covers70 %of the pole pitch (see fig . 1.40) .The armature speed is 500 rpm(revolutions per minute).Assume the air gap flux density is distributed as in fig .1.40b. a .Find the flux per pole and the average air gap flux density. b .Find the emf, developed torque, and conversion power for a wire loop on the armature carrying a current of 9 A. Bm Ya Ya Yp Ур (a) (b) Fig 1.40 Defining the pole are to pole pitch ratio, a =Y/Yp.

1.6The armature of a 6-pole de machine is 80 cm long and has a diameter of 50 cm .The maximum air gap flux density is 1.5 T .The pole arc covers70 %of the pole pitch (see fig . 1.40) .The armature speed is 500 rpm(revolutions per minute).Assume the air gap flux density is distributed as in fig .1.40b. a .Find the flux per pole and the average air gap flux density. b .Find the emf, developed torque, and conversion power for a wire loop on the armature carrying a current of 9 A. Bm Ya Ya Yp Ур (a) (b) Fig 1.40 Defining the pole are to pole pitch ratio, a =Y/Yp.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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1.6The armature of a 6-pole de machine is 80 cm long and has a diameter of 50 cm .The maximum air gap flux density is 1.5 T .The pole arc covers70 %of the pole pitch (see fig . 1.40) .The armature speed is 500 rpm(revolutions per minute).Assume the air gap flux density is distributed as in fig .1.40b. a .Find the flux per pole and the average air gap flux density. b .Find the emf, developed torque, and conversion power for a wire loop on the armature carrying a current of 9 A. Bm Ya Ya Yp Ур (a) (b) Fig 1.40 Defining the pole are to pole pitch ratio, a =Y/Yp.
Transcribed Image Text:1.6The armature of a 6-pole de machine is 80 cm long and has a diameter of 50 cm .The maximum air gap flux density is 1.5 T .The pole arc covers70 %of the pole pitch (see fig . 1.40) .The armature speed is 500 rpm(revolutions per minute).Assume the air gap flux density is distributed as in fig .1.40b. a .Find the flux per pole and the average air gap flux density. b .Find the emf, developed torque, and conversion power for a wire loop on the armature carrying a current of 9 A. Bm Ya Ya Yp Ур (a) (b) Fig 1.40 Defining the pole are to pole pitch ratio, a =Y/Yp.
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