Replacement of LT (Low Tension) and HT (High Tension) bushings in transformers is essential for maintaining safe and efficient electrical performance. Bushings serve as insulated passageways for electrical conductors through the transformer tank. Over time, they can degrade due to electrical stress, contamination, or mechanical damage, leading to insulation failure or oil leakage. Timely replacement involves isolating the transformer, draining oil if necessary, safely removing the damaged bushings, and installing new ones with proper sealing and alignment. Using high-quality bushings ensures improved reliability, prevents outages, and extends the transformer’s service life. Expert handling is crucial for safety and performance.