New Concept Vacuum Circuit Breaker 7.2kv-36kv Smart VCB Type Vz -

Abstract

Toshiba has developed a hew concept vacuum circuit breaker, SMART VCB, ranging from 7.2kV to 36kV, which integrate a new vacuum interrupter, an operating mechanism and an insulation structure. The device features a new vacuum arc control technology, SADE (Self-Arc-Diffusion-by-Electrode), which doubles the high current interruption capability. The operating mechanism features low driving energy, low maintenance, compactness and tight weight, which produces a highly reliable VCB for its entire service life. The insulation structure features high mechanical strength and insulation performance by using a molded insulator. This new concept VCB is easily adapted to metal clad switchgear, which realize a modern, compact, light weight, safety metal clad switchgear toward the 215' century.