DocumentCode
1444417
Title
Fast response GTO assisted novel tap changer
Author
Jiang, Hao ; Shuttleworth, Roger ; Al Zahawi, Bashar A T ; Tian, Xiaolin ; Power, Andrew
Author_Institution
Singapore Polytech., Singapore
Volume
16
Issue
1
fYear
2001
fDate
1/1/2001 12:00:00 AM
Firstpage
111
Lastpage
115
Abstract
A new type of GTO thyristor assisted tap changer is outlined which addresses the problems of traditional schemes. The scheme minimizes conduction losses in the solid state devices and also permits a fast response speed through the adoption of fast actuator driven vacuum switches. This paper describes a prototype tap changer for a low voltage 300 kVA transformer using the new method of tap changing. The prototype operates at current levels similar to those at which a full scale tap changer would work. Test results are presented
Keywords
electric actuators; losses; power transformers; thyristor applications; vacuum switches; 300 kVA; GTO thyristor assisted tap changer; conduction losses minimisation; fast actuator driven vacuum switches; fast response GTO assisted tap changer; solid state devices; transformer; Actuators; Circuit testing; Low voltage; Oil insulation; Petroleum; Power semiconductor switches; Power transformer insulation; Programmable control; Prototypes; Thyristors;
fLanguage
English
Journal_Title
Power Delivery, IEEE Transactions on
Publisher
ieee
ISSN
0885-8977
Type
jour
DOI
10.1109/61.905608
Filename
905608
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