What is ground-fault protection? The answer depends on whether you are talking about ground-fault protection of equipment or ground-fault protection of people. Just because ground-fault protection is ...

Ground fault protection is a cornerstone in ensuring the safety and operational reliability of modern power systems. Ground faults, which occur when an unintended electrical path connects a live ...

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

Electrical standards for PV systems: In part one of this series we looked at the background and scope of the U.S. National Electrical Code (NEC). We continued with a survey of 2011 NEC coverage of ...

For modern distribution protection, Negative Phase Sequence (NPS) Protection is often relegated in favor of common elements such as Overcurrent (OC) or Earth Fault (EF), but NPS is an incredibly ...

Safety codes often require “ground fault circuit interrupter” inclusion for electrical power outlets. The operation of such a device depends on making a comparison of the current levels in two wires, ...

Created to protect personnel from electric shock, GFCI-type operations now help protect equipment as well. • Ground-fault sensing now protects equipment as well as personnel. • The magnitude of ...

Circuit breaker keeps tripping is a warning, not a nuisance. Repeated trips can signal overloads, wiring faults, ground faults, or coordination problems, and misreading the cause risks overheating, ...

Power systems today operate in an environment where reliability and safety must be maintained despite rising loads, expanding ...

S&C has upgraded Coordinaide — The S&C Protection and Coordination Assistant. It’s available now on the S&C website. The IntelliRupter PulseCloser application has been expanded to include a sensitive ...