In power systems, reliability is not achieved by design alone. It is established through a structured process of verification, validation, inspection, and testing carried out at different stages of the equipment lifecycle. Whether the equipment is a power transformer, switchgear... Read more

The post Substation Equipment: From Type Testing to Factory and Site Acceptance Testing (FAT, SAT) appeared first on EEP - Electrical Engineering Portal.

This article explores the complete spectrum of substation maintenance philosophies from Corrective and Preventive Maintenance to Predictive, Condition-Based, and ultimately Risk-Based Maintenance (RBM). It explains how each approach evolved, where it fits within modern substations, and how utilities can transition... Read more

The post Substation Maintenance Transition Toward Clever Data-driven Asset Management appeared first on EEP - Electrical Engineering Portal.

This article gives a systematic and pragmatic look into Substation Automation Systems, dealing with the constraints of traditional (now old) SCADA-based substations and advancing to modern SAS systems. We’ll discuss the strong arguments and field practice in moving from hardwired automation,... Read more

The post Field practice in moving from an old SCADA-based to a modern substation automation system (SAS) appeared first on EEP - Electrical Engineering Portal.

Modern power systems are undergoing fundamental transformation. The rapid growth of inverter-based resources—such as battery energy storage systems (BESS), solar PV plants, wind farms, HVDC links, electric vehicle chargers, and power-electronic-dominated industrial loads—has significantly altered the harmonic behavior of electricity... Read more

The post Why Compliance to Harmonic Studies Is Now Mandatory for Modern Power Systems appeared first on EEP - Electrical Engineering Portal.

Modern power systems are undergoing a profound transformation. The rise of harmonic distortion is becoming a huge problem. The traditional grid once dominated by large synchronous generators and linear loads—has evolved into a complex, inverter-rich network driven by renewable generation,... Read more

The post The Rise of Harmonic Distortion in Modern Power Systems appeared first on EEP - Electrical Engineering Portal.