The Xfinity Series is considered NASCAR's second-tier circuit behind the Cup Series ... 4 p.m. Justin Allgaier March 29 US Marine Corps 250 Martinsville Speedway 5 p.m. Austin Hill April 5 ...

Electrical power transmission networks are protected and controlled by medium and high-voltage circuit breakers. Breakers are meant to make and break the flow of electrical currents in transmission ...

In a previous article, we overviewed the circuit breaker maintenance practices presently in application, including a listing of some of the important tests in use, with reference to the applicable ...