Fast response GTO assisted novel tap changer

Fast response GTO assisted novel tap changer

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 describe...

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Veröffentlicht in:IEEE transactions on power delivery 2001-01, Vol.16 (1), p.111-115
Hauptverfasser: Hao Jiang, Shuttleworth, R., Al Zahawi, B.A.T., Tian, X., Power, A.
Format: Artikel
Sprache:eng
Schlagworte:
Actuators
Circuit testing
Conduction losses
Low voltage
Oil insulation
Petroleum
Power semiconductor switches
Power transformer insulation
Programmable control
Prototypes
Solid state devices
Tap changers
Thyristors
Transformers
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Zusammenfassung: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.
ISSN:0885-8977
1937-4208
DOI:10.1109/61.905608