Megger testing of transformers is a diagnostic procedure used to measure the insulation resistance of a transformer’s windings and components. This test helps identify potential insulation breakdowns or deterioration that could lead to failures or short circuits. Using a Megger insulation resistance tester, high voltage is applied to the transformer’s windings, and the resistance is measured. A high resistance value indicates good insulation, while a low value signals potential issues. Megger testing is typically conducted during commissioning, routine maintenance, or after repairs. It ensures transformer reliability, reduces the risk of electrical faults, and helps extend the lifespan of critical power equipment.
Noida