DocumentCode :
787036
Title :
New thyristor assisted diverter switch for on load transformer tap changers
Author :
Cooke, G.H. ; Williams, K.T.
Author_Institution :
Dept. of Electron. & Electr. Eng., Salford Univ., UK
Volume :
139
Issue :
6
fYear :
1992
fDate :
11/1/1992 12:00:00 AM
Firstpage :
507
Lastpage :
511
Abstract :
Based on a conventional tap changer, a new diverter switch is described which features a single transition resistor and thyristor assisted suppression of arcing at the switch contacts. A simple arrangement of mechanical switch contacts ensures that the thyristor pairs used for arc suppression are only connected and triggered for a short interval of time prior to, during and after the operation of the switch contacts. A thyristor malfunction will not result in damage to the tap selector or transformer
Keywords :
power transformers; switching circuits; thyristor applications; arcing suppression; mechanical switch contacts; on load transformer tap changers; single transition resistor; thyristor assisted diverter switch; thyristor pairs;
fLanguage :
English
Journal_Title :
Electric Power Applications, IEE Proceedings B
Publisher :
iet
ISSN :
0143-7038
Type :
jour
Filename :
170914
Link To Document :
بازگشت