Transformer Overhauling is a comprehensive process of inspecting, cleaning, repairing, and restoring a transformer to its optimal working condition. It involves disassembling key components, checking windings, cleaning the core, replacing damaged parts, filtering or replacing insulating oil, testing insulation resistance, and verifying all electrical parameters. Overhauling is typically performed after long operational periods or when performance declines due to aging or wear. This service ensures reliability, improves efficiency, and extends the transformer's operational life. It is essential for minimizing unexpected failures and maintaining safe power distribution in industrial, commercial, and utility sectors where uninterrupted power is critical.