Title :
The new concept of protection method against stresses in medium voltage instrument transformers
Author_Institution :
Magneto Ltd., Czestochowa, Poland
Abstract :
To produce magnetic circuits for voltage instrument transformers some magnetic cores are applied. Their are made of grain oriented electrical steel. However, magnetic cores with a distributed air gap are more and more often used. As it is well known, such a cores became very sensitive for any mechanical compression stresses and elastic dilatation layer has to be used. The paper describes a practice of using new concept of protection method against stresses in medium voltage instrument transformers.
Keywords :
air gaps; iron alloys; magnetic circuits; magnetic cores; potential transformers; silicon alloys; transformer protection; distributed air gap; elastic dilatation layer; grain oriented electrical steel; magnetic circuits; magnetic cores; mechanical compression stresses; medium voltage instrument transformers; stress protection method; Instrument transformers; Magnetic cores; Magnetic flux; Magnetic materials; Medium voltage; Protection; Stress; Transformer cores; Voltage transformers; Wounds; Cut core; air gap; dilatation layer; magnetic characteristic; specific power loss; voltage instrument transformer;
Conference_Titel :
Electrodynamic and Mechatronics, 2009. SCE 11 '09. 2nd International Students Conference on
Conference_Location :
Silesia
Print_ISBN :
978-1-4244-3897-6
Electronic_ISBN :
978-1-4244-3898-3
DOI :
10.1109/ISCON.2009.5156090
