In the field of electrical engineering, where the reliability of energy networks is paramount, maintaining the insulation of equipment is a critical challenge. An insulation failure can lead to costly outages, safety risks, or even widespread blackouts. Among the most effective and widely used diagnostic tools is the Tan Delta test, also known as the Dissipation Factor Test… Read More »
Vector algebra is a fundamental tool in electrical engineering, particularly in the analysis of circuits and protection systems. It allows for the representation of physical quantities, such as current or voltage, not only by their magnitude but also by their direction. This article highlights the importance of vector representation in simplifying calculations involving complex quantities, while providing a… Read More »
Directional earth fault protection, identified by the ANSI code 67N, is a specialized protection function used in electrical networks with a compensated neutral, typically employing a Petersen coil earthing system. This protection is designed to detect and isolate earth faults (single-phase-to-ground faults) in such networks by distinguishing the fault current in a faulty feeder from the capacitive currents… Read More »