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

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.

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