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a) A triplex lap-wound armature is use in a 14 poles machine with 14 brushes sets, each spanning three commutator bars. Calculate the number of parallel paths in the armature. b) Repeat a) for a triplex wave-wound armature having two such brush sets and 14 poles. c) Calculate the generated emf in each of the above problems, if the flux per pole is 4.2x106 lines, the generated speed is 60rpm, and there are 420 coils in the armature, each coil having 20 turns.

a) A triplex lap-wound armature is use in a 14 poles machine with 14 brushes sets, each spanning three commutator bars. Calculate the number of parallel paths in the armature. b) Repeat a) for a triplex wave-wound armature having two such brush sets and 14 poles. c) Calculate the generated emf in each of the above problems, if the flux per pole is 4.2x106 lines, the generated speed is 60rpm, and there are 420 coils in the armature, each coil having 20 turns.

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
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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a) A triplex lap-wound armature is use in a 14 poles machine with 14 brushes sets, each spanning three commutator bars. Calculate the number of parallel paths in the armature. b) Repeat a) for a triplex wave-wound armature having two such brush sets and 14 poles. c) Calculate the generated emf in each of the above problems, if the flux per pole is 4.2x106 lines, the generated speed is 60rpm, and there are 420 coils in the armature, each coil having 20 turns.
Transcribed Image Text:a) A triplex lap-wound armature is use in a 14 poles machine with 14 brushes sets, each spanning three commutator bars. Calculate the number of parallel paths in the armature. b) Repeat a) for a triplex wave-wound armature having two such brush sets and 14 poles. c) Calculate the generated emf in each of the above problems, if the flux per pole is 4.2x106 lines, the generated speed is 60rpm, and there are 420 coils in the armature, each coil having 20 turns.
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