What is the process of transformer oil filter cartridge and when is it required?

The process of transformer oil filter cartridge involves the removal of contaminants, moisture, and particulate matter from transformer oil using a specialized filter. This is typically required during routine maintenance, after oil sampling, or when moisture levels exceed acceptable limits. The filter cartridge ensures the oil maintains its insulating properties and extends the lifespan of the transformer by preventing degradation and potential failures. Regular monitoring and replacement of the filter cartridge are essential for optimal transformer performance.