The iconic Square D tail code on the 100th ARW's KC-135 tankers came to pass and endures due to an obscure, inauspicious event.

Direct current (dc) power system protection presents a major challenge due to its unique characteristics, namely the absence of natural zero current crossing points. Thanks to their features, dc ...

Robust spring energy state identification of the operating mechanism is of great significance for monitoring the overall performance of the circuit breakers. However, rapid monitoring of the spring ...