In today's world, the increasing demand for power, aging infrastructure, and overloading of electrical systems create significant challenges for industries reliant on medium and high voltage components, such as power grids, substations, and rotating machinery like motors and generators.
Among these challenges, corona partial discharge (Corona PD) stands out as a critical yet often invisible threat. Corona PD not only signals potential malfunctions but also actively contributes to the degradation of electrical components, leading to costly system Leading to costly system repairs, safety hazards, unexpected downtimes and more.
Corona Partial Discharge (Corona PD) is a form of partial discharge that occurs when a strong electric field ionizes the surrounding air. This ionization process emits ultraviolet (UV) photons, detectable using UV technology.
Serving as both a warning signal and a damaging force, Corona PD highlights potential equipment malfunctions and actively contributes to deterioration, underscoring the need for timely intervention and management.
Corona PD indicating the presence of malfunctions
Damages to components caused by Corona PD
Beyond signaling potential issues, Corona PD is inherently destructive. It produces ozone, nitric acid and oxalic acids which damage electrical components, leading to premature equipment failures.
Therefore, detecting and mitigating Corona PD is essential to maintain the integrity and longevity of electrical systems, ensuring their safe and efficient operation.
Corona partial discharge is generally detected in the initial stages of an issue, prior to a critical failure. Accurate and timely detection allows for proactive identification and rectification of potential equipment failures, thus preventing costly, disruptive power outages and parts replacement.
helps prevent costly downtime or parts replacement
allows for exact PD location and thus for more efficient maintenance
enables improved operation and better component health