A six-pole, 24 KW, 120 V, DC machine has a Duplex LAP-wound armature which has 72 coils with 12 turns per coil. Its rated speed is 2400 RPM. Assume no dead zone: If the resistance of this winding is 0.04 2 per conductor, what is the armature resistance RA Of this machine? Select one: a. RA = 0.04 Ohms b. RA = 0.48 Ohms c. RA = 5.76 Ohms d. None
A six-pole, 24 KW, 120 V, DC machine has a Duplex LAP-wound armature which has 72 coils with 12 turns per coil. Its rated speed is 2400 RPM. Assume no dead zone: If the resistance of this winding is 0.04 2 per conductor, what is the armature resistance RA Of this machine? Select one: a. RA = 0.04 Ohms b. RA = 0.48 Ohms c. RA = 5.76 Ohms d. None
Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter33: Single-phase Motors
Section: Chapter Questions
Problem 32RQ
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A six-pole, 24 KW, 120 V, DC machine has a Duplex LAP-wound armature which has 72 coils with 12 turns per coil. Its rated speed is 2400 RPM. Assume no dead zone: If the resistance of this winding is 0.04 2 per conductor, what is the armature resistance RA Of this machine? Select one:
a. RA = 0.04 Ohms
b. RA = 0.48 Ohms
c. RA = 5.76 Ohms
d. None
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