Blog

In March 2025, a devastating fire at the Hayes Substation in West London resulted in a massive power outage that disrupted operations at Heathrow Airport, grounding over 1,000 flights and causing significant inconvenience and economic damage. This incident not only brought travel to a standstill but clearly illustrated the critical need to proactively ensure the reliability […]

If we are talking about partial discharges, there are two different types of diagnostics from the proper diagnostic action point of view. If the object under diagnostics is out of order, we talk about off-line (or trial) diagnostics. If the object is in operational order, we talk about on-line (or functional) diagnostics. Due to the fact, that very often, there […]

As the year draws to a close, we want to take a moment to express our heartfelt gratitude to all our clients and partners for their continued trust and collaboration. We wish you a season filled with joy, peace, and the opportunity to reflect on the year’s achievements and moments of growth. May this time […]

In modern energy distribution, one of the most significant challenges is minimizing energy losses. This article explores the types of losses in electrical distribution systems, highlights the importance of monitoring partial discharges, and examines the role of measurement vehicles in traditional maintenance practices. What are the basic types of energy losses? Energy losses in distribution […]

ModemTec is proud to introduce the MT49S PLC Communication Modem, a highly advanced and robust device designed to deliver superior performance and reliability in power line communication. As industries evolve towards smarter, more connected operations, the MT49S stands out by offering cutting-edge features that leverage G3-PLC technology, making it the ideal solution for utilities, energy management, and […]

Creating a comprehensive partial discharge diagnostic system is essential for monitoring and assessing the condition of electrical insulation in high-voltage equipment. This article explores how to develop such system, highlighting key concepts, components, and methodologies. Introduction The degradation of insulation state in high-voltage systems can be caused by various factors, including partial discharges (PD). Partial discharges are […]

ModemTec is excited to announce our participation in the Enlit Europe 2024 Exhibition in Milan! This is a fantastic opportunity to connect with experts and innovators from the energy sector, and we’re thrilled to showcase our latest developments and advanced diagnostic solutions. 📅 Date: 22-24 October 2024📍 Location: Fiera Milano, Italy🤝 Czech Pavilion, Stand: 7.D60 […]

The PD Doctor is an advanced Partial Discharge (PD) online monitoring system designed to maintain the integrity of electrical networks aboard marine vessels. Installed on the main distribution board bus bar, the PD Doctor continuously monitors partial discharge activity on each of the three phases of the vessel’s electrical system. This system helps identify potential […]

In the field of electrical equipment diagnostics, the ultimate goal is not only to detect existing issues but to accurately predict the future reliability and performance of the equipment. This is especially critical when monitoring partial discharges, which can indicate potential insulation failures in high-voltage systems. While both offline and online partial discharge monitoring methods […]

Dozens of PD Doctor installations across Europe have proven their high added user value and reliability for customers. They have detected degradation of existing lines, helped eliminate high interference on overhead lines, established the link between rainy weather and increasing partial discharge (PD) activity, for example, or helped save significant amounts of money by postponing […]