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Investigation of two types of interrupting chamber with low drive energy and development of 245-kV GCB

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4 Author(s)
T. Mori ; T&D R&D Center, TMT&D Corp.., Kawasaki, Japan ; H. Mizoguchi ; N. Kato ; M. Toyoda

In an attempt to generate high pressure with small driving energy, two types of interrupting chamber, two volumes-two pistons-type, and one volume-one piston-type are compared by simulating opening operating characteristics. As the result of the simulations, we concluded that one volume-one piston-type chamber could generate sufficient high pressure and ability to interrupt high current with a simpler structure and limited operating energy. A new GCB for 245-kV GIS adopting the new chamber has been developed.

Published in:

IEEE Transactions on Power Delivery  (Volume:19 ,  Issue: 1 )