Title :
Heat analysis of thermal overload relays using 3-D finite element method
Author :
Kawase, Yoshihiro ; Ichihashi, Takayuki ; Ito, Shokichi
Author_Institution :
Dept. of Inf. Sci., Gifu Univ., Japan
fDate :
5/1/1999 12:00:00 AM
Abstract :
In designing a thermal overload relay, it is necessary to analyze the thermal characteristics of several trial models. Up to now, this has been done by measuring the temperatures on a number of positions in the trial models. This experimental method is undoubtedly expensive. In this paper, the temperature distribution of a thermal overload relay is obtained by using 3-D finite element analysis taking into account the current distribution in current-carrying conductors. It is shown that the authors´ 3-D analysis is capable of evaluating a new design of thermal overload relays
Keywords :
current distribution; finite element analysis; machine theory; motor protection; relay protection; temperature distribution; thermal analysis; 3-D finite element method; current distribution; current-carrying conductors; heat analysis; motor overload protection; temperature distribution; thermal overload relays; Circuits; Conductors; Equations; Finite element methods; Indium tin oxide; Protection; Protective relaying; Relays; Temperature; Thermal conductivity;
Journal_Title :
Magnetics, IEEE Transactions on
