This article is the first in a series of articles that will help to bring light to the maintenance practices presently applied to power circuit breakers. A list of the most popular tests used; with ...

Abstract: The inclusion of a large number of controllable semiconductor devices in conventional hybrid dc circuit breakers (HCBs) may significantly increase the cost of an HVdc grid protection scheme.

Abstract: THE papers heretofore presented before the Institute on the subject of air blast circuit breakers have covered primarily their advantages in comparison with oil circuit breakers, the ...