Cooper Power Systems has designed its full-featured differential relay, the iXP-420, to provide comprehensive two-winding transformer protection, and monitoring and control. The iXP-420 incorporates ...

Abstract: The protection relay performs a significant role in maintaining the power system’s reliability and stability. However, Current Transformer (CT) saturation affects the overcurrent, ...

In this paper, the authors present the analysis of digital differential protection for three phase power transformers. Power transformer is the key element in electrical power system. Proper ...

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

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: This paper focuses on short-circuit protection of dual-core phase-shifting transformers. The paper derives operating equations for differential protection of the series and excitation ...