Some problems related to surface temperature measurement of synchronous generator excitation winding in rotation

This paper addresses some of the problems related to direct temperature measurement of synchronous generator excitation winding in rotation. Excitation winding temperature is used for determining the dynamic limit in a PQ diagram. The paper also addresses procedures of improving the accuracy of surface temperature measurement using the DS18B20 digital temperature probes. The paper also provides experimental results of direct temperature measurement on the surface of excitation winding conducted in the synchronous generator in the rotation.