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

GE Digital Energy has announced the Multilin 345 Transformer Protection Relay that provides users with a technologically advanced, easy to use, and cost-effective overcurrent transformer protection ...

Schweitzer Engineering Laboratories, Inc. (SEL) has announced wide-area-measurement-based control in a transformer relay for the first time. This enhancement to the SEL-487E Transformer Protection ...

Abstract: The paper considers the prospects of using synchronized phasor measurements (SPM) to implement the functions of a power transformer relay protection and control in microprocessor devices.

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

Abstract: Transformers are critical to the successful operation of the electrical power systems. Their reliability and availability is therefore key to flawless and optimum power generation and ...

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