Review Of Fundamental Two Pole Induction Motor Mechanics.
Abstract
An introduction to two pole motor mechanics is presented, with the goal of promoting an understanding of normal and abnormal vibration sources to assist in the diagnosis of the field problems of such motors. Motor force vectors are reviewed, which define sample frequencies and magnitudes for the normal mechanical and electrical causes. Tables of sources of both normal and abnormal forces are presented which enable the reader to calculate the frequencies involved and possible causes for excessive levels. Sum and difference frequencies (beat) are complicating factors in such motors and a brief nonmathematical discussion of such processes is presented, in terms of two pole motor vectors. A case problem is presented, showing an example of two pole motor beat frequencies and the associated sidebands in such problem cases.
Description
LecturePg. 17-22
Subject
TurbomachinesCollections
Citation
Corey, Cletus A. (1985). Review Of Fundamental Two Pole Induction Motor Mechanics.. Texas A&M University. Turbomachinery Laboratories. Available electronically from https : / /hdl .handle .net /1969 .1 /163643.