Optical current transformer for 245 kV integrated air insulated switchgear

Author

Takahashi, Masao ; Sasaki, Kin Ichi ; Terai, Kiyohisa ; Hirta, Yukihisa ; Nakajima, Takashi

Author_Institution

Toshiba Corp., Tokyo, Japan

Volume

1

fYear

2003

fDate

7-12 Sept. 2003

Firstpage

389

Abstract

Applying an optical current transformer (optical CT) to substations has several advantages, e.g. high accuracy and reduction of the cost. In particular, in the case of a digitally controlled substation, the optical CT assures the insulation performance and is free from network damage caused by dielectric breakdown. We made the optical CT for 245 kV integrated air insulated switchgear, Toshiba´s intelligent AIS substation, using a digital control system and demonstrated its characteristics. The optical CT shows excellent performance within IEC 0.5 class accuracy.

Keywords

air insulation; current transformers; digital control; electric breakdown; substation automation; substation insulation; switchgear insulation; IEC 0.5 class accuracy; Toshiba intelligent AIS substation; dielectric breakdown; digital control system; digitally controlled substation; integrated air insulated switchgear; optical current transformer; Costs; Current transformers; Dielectrics and electrical insulation; Digital control; Integrated optics; Optical control; Optical fiber networks; Power transformer insulation; Substations; Switchgear;

fLanguage

English

Publisher

ieee

Conference_Titel

Transmission and Distribution Conference and Exposition, 2003 IEEE PES

Print_ISBN

0-7803-8110-6

Type

conf

DOI

10.1109/TDC.2003.1335254

Filename

1335254