The Diagnosing of Troubles in Electrical Machines

Abstract

WHEN an electrical machine is not working satisfactorily it is necessary for the engineer to diagnose the trouble and, if possible, suggest a remedy. The engineer in the works when testing the finished machine has every scientific instrument at his command. On the other hand the engineer responsible for running machinery has only a few voltmeters, ammeters and wattmeters available. Both engineers., however, will probably find what they require in the book under notice. It would be impossible within the limits of a single book to deal with every case that might arise, but there are several general methods of procedure given by the author which if followed will so limit the position or nature of the fault that its detection becomes easy. Prof. Miles Walker has had exceptional experience with machinery during the last thirty years and so lays the greatest stress on those faults which occur most often; in some cases the faults are due to abstruse causes which make great demands on the expert's knowledge of physical science.