Relays are electromechanical devices that use a magnetic solenoid to actual a switch. When current is passed through the solenoid coil, it produces a magnetic field. The magnetic field is strengthened ...

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 ...

Proper selection and effective testing can increase contact reliability in the end product while reducing the overall cost of using relays. Who said relays are pass�? While electromechanical relays ...

Testing relays is both an art and a science. As relay technicians inevitably learn in the field, pure theory-based understanding of protective relays is not nearly enough for the real-world situations ...

Outage stalled the Super Bowl in New Orleans for 35 minutes The cause of Sunday’s power outage at the Super Bowl in New Orleans has been traced to a newly installed electrical relay device meant to ...

A device designed to bolster the Superdome electrical system instead caused it to shut down dramatically during Super Bowl XLVII, officials said Friday, but the equipment maker blames the settings ...