What is PCB-free transformer oil?

PCB-free transformer oil refers to insulating oil used in electrical transformers that does not contain polychlorinated biphenyls (PCBs), which are harmful environmental pollutants. These oils are formulated to provide the necessary electrical insulation and cooling properties without the associated health risks of PCBs, which were banned in many countries due to their toxicity and persistence in the environment. PCB-free transformer oils ensure enhanced safety and compliance with environmental regulations while maintaining efficient performance in transformer applications.