PRE-DETERMINATION OF TEMPERATURE RISE IN DC MACHINES BY HEAT TRANSFER CALCULATIONS

Abstract

The present work deals with the ealoulatien of t pe atm vise of dttfsrwnt parts of a large 4.0. aaohin*. Pros the desijn details serodnto resistances of dtft rent puts are ds%sraiz d using ithich an eq riv ► Z.ent øir.outt has been deysloped, This equivalent otrm&it bee been volved using network techniQues aM air distrtbutio* iz the aechine is deteiained. On the basis of the nnttLstton •alctilstions, heat calculations are died out end temperaturetime of different pis of a rcachi ue are predatirUzstt, This method has been ooipared with oonvent soul methods and actual test results.