A Relay Protection Tester is designed to simulate electrical quantities such as current, voltage, frequency, and phase, ...

EDN announces this year’s winners of the Electronic Products Product of the Year Awards, selected by the editors.

When you update an old house, the most tempting electrical fixes are often the quickest: a new outlet here, a bigger breaker ...

A transformer protection relay does not replace upstream devices. It defines responsibility. By clearly assigning fault ...

Differential protection is best understood as a fault control philosophy rather than a component category. The relay itself is secondary to the scheme it enforces. Once a zone is defined, the system ...