Early Detection of Faulty Contactors in Solar Inverters

Photovoltaic (PV) plants are at the forefront of the global transition to renewable energy, offering clean, scalable, and increasingly cost-effective electricity generation. With the deployment of large-scale solar farms, solar energy plays a vital role in diversifying the energy matrix and reducing greenhouse gas emissions. To ensure consistent energy output, the reliability of critical components such as inverters, transformers, and power electronics is fundamental.

Contactors are key components in managing harmonic filtering and reactive power compensation in PV inverters. Their proper functioning directly impacts inverter performance, safety, and energy quality. Failures in these contactors, especially when undetected, can trigger abnormal behavior in the transformer, operational noise, or complete shutdowns, undermining system reliability.

Renewable Energy

Inverter

Contactors

Unplanned Stoppage
Loss of production