Q.1/ A 4-pole series motor has 654 lap-connected armature conductors. At a certain load, the flux per pole is 34.6 mWb and the total mechanical torque developed is 200 N-m. Calculate the line current taken by the motor and the speed at which it will run with an applied voltage of 400 V. Total motor resistance is 3 ohm.

Q.1/ A 4-pole series motor has 654 lap-connected armature conductors. At a certain load, the flux per pole is 34.6 mWb and the total mechanical torque developed is 200 N-m. Calculate the line current taken by the motor and the speed at which it will run with an applied voltage of 400 V. Total motor resistance is 3 ohm.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter32: Three-phase Motors

Section: Chapter Questions

Problem 13RQ: A squirrel-cage induction motor is operating at 1175 RPM and producing a torque of 22 Ib-ft. What is...

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Concept explainers

Winding and Constructions

Alternating Current (AC) winding is generally of the 3-phase type due to the inherent advantages of the 3-phase machine. Armature coils must be connected to the yield balance (equivalent in magnitude and 2/3 of the series phase difference of the rod) 3-phase electromotive forces (emf). The armature should be divided into step-bands to start with slots around the perimeter.In the construction of AC machines, the frame is used as an external protective shield to protect it from environmental conditions. The frame also serves as the outer perimeter, allowing the interior to be easily placed. The static state section of the devices is the stator winding attached stator.

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Q.1/ A 4-pole series motor has 654 lap-connected armature conductors. At a certain load, the
flux per pole is 34.6 mWb and the total mechanical torque developed is 200 N-m. Calculate
the line current taken by the motor and the speed at which it will run with an applied voltage
of 400 V. Total motor resistance is 3 ohm.

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