When and how is traction transformer overhauling conducted?

Traction transformer overhauling is conducted when routine maintenance indicates significant wear, degradation, or potential failure—usually after a set period or operating hours. The process involves removing the transformer from service and disassembling it for thorough inspection. Components like windings, insulation, and core materials are examined for damage or deterioration. Necessary repairs or replacements are made, and the transformer is cleaned and reassembled. Tests are performed to ensure it meets operational specifications before being reinstalled. Overhauling extends the transformer’s service life, enhances reliability, and prevents unexpected breakdowns.