Fault current limiting transformer with variable reactance

Author

Kondoh, Junji ; Ishii, Itaru

Author_Institution

National Inst. of Adv. Ind. Sci. & Technol., Tsukuba, Japan

Volume

14

Issue

2

fYear

2004

fDate

6/1/2004 12:00:00 AM

Firstpage

875

Lastpage

878

Abstract

The objective of this work is to prove experimentally the ability of a transformer with variable reactance to limit the fault current and to adjust the secondary voltage. This transformer is able to change its leakage reactance by a shift of a movable iron-core block. It has three functions of voltage transformation, fault current limitation, and voltage regulation. A small trial apparatus was manufactured and these functions were demonstrated experimentally. Its characteristics and some points that should be improved are also clarified.

Keywords

electric reactance; fault current limiters; power transformers; voltage control; fault current limitation; fault current limiting transformer; iron-core block; leakage reactance; secondary voltage; variable reactance; voltage regulation; voltage transformation; Capacitors; Current transformers; Distributed power generation; Equivalent circuits; Fault currents; Impedance; Manufacturing; Substations; Voltage control; Voltage fluctuations; Fault current; transformer; variable reactance; voltage regulation;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2004.830307

Filename

1324932