A 15 kW, 400 V, 3 phase, 50 Hz, 6 poleinduction motor has a diameter of 0.3 m andthe length of core 0.12 m. The number ofstator slots is 72 with 20 conductors per slot.The stator is delta connected. Calculate thevalue of magnetizing current per phase if thelength of airgap is 0.55 m. The gap contractionfactor is 1.2. Assume the mmf required for theiron parts to be 35 percent of the air gapmmf. Coil span=11Slots.Determine Flux Per Pole.

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Answered: Determine Flux Per Pole.

Engineering

Electrical Engineering

Determine Flux Per Pole.

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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Question

A 15 kW, 400 V, 3 phase, 50 Hz, 6 pole
induction motor has a diameter of 0.3 m and
the length of core 0.12 m. The number of
stator slots is 72 with 20 conductors per slot.
The stator is delta connected. Calculate the
value of magnetizing current per phase if the
length of airgap is 0.55 m. The gap contraction
factor is 1.2. Assume the mmf required for the
iron parts to be 35 percent of the air gap
mmf. Coil span=11Slots.
Determine Flux Per Pole.

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