In this video, we provide an in-depth look at the NSH VFD series Vacuum Oil Purifier. You will see how this mobile system effectively purifies insulating oil through vacuum dehydration and degassing, achieving a breakdown voltage of 75KV and reducing gas content to 0.1%. Watch to understand its advanced coacervation and coalescing technologies, and learn how it enhances the performance of high-voltage transformers and other electrical equipment.