Windmill-shaped electrode for vacuum circuit interrupter

摘要

The disclosed windmill-shaped electrode comprises a central circular flat portion, a tapered portion connected to the central flat portion to encircle it and four circular arc-shaped slots extending radially and circumferential through the tapered portion and terminating at the flat portion. The flat portion has a radius not smaller than 0.4 time and not larger than 0.7 time a maximum radius of the electrode. Each slot describes a circular arc having a single radius not smaller than the radius of the flat portion.