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.

This month in EC&M's forum for your power quality questions, Mark McGranaghan, vice president of consulting services, teams up with several other experts from EPRI-PEAC to address the topics of ...

Often we try to find solutions to common power magnetics issues in engineering manuals. In the process, we encounter conflicting theories among publications with no definitive solutions offered. This ...

In the development of different technologies, many engineers encounter and have to deal with inrush currents to their devices. The reality of inrush current and the meaning of an I2t measurement will ...

Fig. 1. A typical method of measuring dc inrush involves using either a current probe (a) or a shunt (b). The relay connected to the power supply can be omitted if the rise time of the power supply is ...