4. The air gap in a salient-pole synchronous machine * is maximum along the quadrature-axis direction and is minimum along the direct-axis direction is maximum along the direct-axis direction and is minimum at the ends of pole shoes O is equal in circumferential direction

4. The air gap in a salient-pole synchronous machine * is maximum along the quadrature-axis direction and is minimum along the direct-axis direction is maximum along the direct-axis direction and is minimum at the ends of pole shoes O is equal in circumferential direction

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter39: Synchronous Motor Operation

Section: Chapter Questions

Problem 12SQ

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What is the answer for Question 4

4. The air gap in a salient-pole synchronous machine *
O is maximum along the quadrature-axis direction and is minimum along the direct-axis direction
is maximum along the direct-axis direction and is minimum at the ends of pole shoes
O is equal in circumferential direction

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