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Development of a magnet-assisted autopuffer GCB

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5 Author(s)
Sasao, H. ; Mitsubishi Electr. Corp., Amagasaki, Japan ; Hamano, S. ; Wada, Y. ; Hasegawa, H.
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The principle of a new type of GCB (gas circuit breaker) with magnetically assisted, self-gas flow, a magnet-assisted autopuffer, is presented. It is confirmed that an arc chamber using this principle is capable of high-current interruption by virtue of arc energy and of low-current interruption by virtue of magnetic arc drive. Design parameters of the arc chamber are studied using an extended simulation program. On the basis of the results, a new medium-voltage GCB rated at 24 kV, 25 kA has been developed

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Power Delivery, IEEE Transactions on  (Volume:5 ,  Issue: 3 )