The new concept of protection method against stresses in medium voltage instrument transformers

Author

Pytlech, R.

Author_Institution

Magneto Ltd., Czestochowa, Poland

fYear

2009

fDate

19-21 May 2009

Firstpage

9

Lastpage

10

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ISCON.2009.5156090

Filename

5156090