When a plant engineer must replace bus duct at a battery charging facility, the issue of overloaded neutrals comes front and center. The plant engineer at an automobile battery-charging facility ...

Switching ac power on and off has been a challenge since Edison and others started switching power more than 125 years ago. Now, a solid-state relay (SSR) uses a patented zero-voltage crossing ...

The need for the current waveform to track the voltage on a three-phase power system leads to a second set of requirements, in addition to those for a single-phase power factor correction (PFC) system ...