Abstract: The objective of this paper is to compare the temperature-rise performance of 4 kinds of AMF contacts designs of 126 kV vacuum circuit breakers (VCBs). The 4 AMF contacts designs are 2/3 ...

Operators discovered that vacuum breakers intended to maintain the structural integrity of the containment system during major events were inoperable because certain valves were not reopened after ...

Abstract: For phase-controlled vacuum breakers, the acting time of the actuator should be precise. The variation of capacitor voltage, capacitance, and environmental temperature impact the dispersion ...