Insulation resistance testers, often called megohmmeters, are fundamental tools for preventive maintenance, used to assess ...

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

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 ...

Protective relay testing verifies that installed relays will trip correctly under real fault conditions, confirming settings, ...

The promise of the Internet of Things (IoT) is to network literally billions (and probably trillions) of smart devices together. This connectivity trend has been around for years, initially ...

Abstract: The differential protection scheme offers better selectivity and performance than other protection schemes in addressing protection challenges introduced by integrating ac microgrid into ...

When the IBM PC was new, I served as the president of the San Francisco PC User Group for three years. That’s how I met PCMag’s editorial team, who brought me on board in 1986. In the years since that ...

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Abstract: It is stated that the problem of designing relay protection devices without current transformers remains relevant. To address this issue, it is proposed to use magnetically operated contacts ...

Attila covers software, apps and services, with a focus on virtual private networks. He's an advocate for digital privacy and has been quoted in online publications like Computer Weekly, The Guardian, ...