To be competitive, some electrical contractors often supply low-voltage (LV) service entrance switchboards and switchgear that meet the minimum safety requirements of the National Electrical Code (NEC ...

As the electric distribution system transforms into a smarter network, Commonwealth Edison Co.’s distribution automation team has embarked on a step-change journey that will transform distribution ...

This diagram illustrates the proposed methodology for enhancing electrical distribution systems. It integrates medium-voltage network modeling, clustering algorithms for protection zone determination, ...

Directional overcurrent protection is used when it is necessary to protect the system against fault currents that could circulate in both directions through a system element, and when bi-directional ...

ABB's Coral Springs, Florida, facility has begun the production of the Relion 615 series ANSI-based distribution protection relays. This is a major milestone not only for ABB in North America but also ...

Ground fault relays protect electrical equipment from ground faults. A ground fault is an unintentional current path between a current-carrying conductor and a grounded surface. When a ground fault ...

Hitachi Energy announced the launch of its Relion REF650 multi-application protection and control relay, specifically designed for medium-voltage power distribution grids. The REF650 is designed to ...

Solid-state relays provide robust solutions for electronic switching in load control applications and hold many advantages over electromechanical relays. New, emerging solid-state relay designs offer ...

Vulnerabilities in networked devices programmed to instantaneously trip power grid substation circuit breakers could be the means hackers use to cause the next blackout, warn researchers. See Also: ...