Uncertainty is the enemy of a utility. Accordingly, processes and procedures have been set up to manage or mitigate risk for many of the electromechanical devices that make up and control the power ...

Inrush currents associated with motor starting and transformer energizing can cause interaction problems with other loads in a facility or on the power system, particularly sags that trip loads.

Whenever a power or distribution transformer is isolated from the power system, it is probable that residual magnetism remains in the core due to the phase shift. However, residual magnetism also ...