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

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 ...

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 ...

You recently hired on as the Plant Electrical Maintenance Supervisor. The job was created because of a list of problems that have remained unsolved despite the best efforts of the eleven maintenance ...

Consumer electronic products have become increasingly complex, compact, and power-dense. With these changes comes a heightened need for robust overcurrent protection strategies to ensure the safety, ...