Title :
Mechanical reliability of ferrite cores used in inductive components
Author :
de Graaf, M. ; Dortmans, L. ; Shpilman, A.
Author_Institution :
Philips Components, Eindhoven, Netherlands
Abstract :
This paper presents the study of thermally-induced mechanical stresses in a ferrite core of a power transformer operating under normal conditions, and during the thermal-shock tests. The absolute stress levels and the location of the most critically stressed parts have been identified. Also, methods for testing the strength of a ferrite core half have been analyzed
Keywords :
ferrite devices; magnetic cores; mechanical strength; power transformers; reliability; stress analysis; thermal analysis; thermal shock; transformer cores; ferrite cores; inductive components; mechanical reliability; normal conditions; power transformer; strength testing; thermal-shock tests; thermally-induced mechanical stresses; Electric shock; Ferrites; Finite element methods; Power transformers; Steady-state; Temperature distribution; Tensile stress; Testing; Thermal stresses; Transformer cores;
Conference_Titel :
Electrical Electronics Insulation Conference, 1995, and Electrical Manufacturing & Coil Winding Conference. Proceedings
Conference_Location :
Rosemont, IL
Print_ISBN :
0-941783-15-4
DOI :
10.1109/EEIC.1995.482479
