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 ...

The objective of protective relays and protective schemes is to protect electrical equipment such as transformers, lines, cables, bus bars, etc. during abnormal system conditions. Hence, protective ...

Visit the ERLPhase Power Technologies booth at the IEEE PES T&D Exposition to learn more about our protection relays and disturbance fault recorders that deliver high quality and reliable protection ...

A vulnerability in the Siemens Digsi 4 protocol, which allowed a denial-of-service attack against the company's SIPROTEC 4 protection relays, was discovered recently by the Israeli security outfit ...

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 ...

The PGR-8800 is a microprocessor-based protection relay that limits arc-flash damage by using light sensors to rapidly detect the arc and then trip a circuit breaker. Phase current-transformer inputs ...