Replacement of LT (Low Tension) and HT (High Tension) bushings in a transformer is essential for maintaining safe and reliable electrical connections. Bushings provide insulated paths for current to pass through the transformer tank without short-circuiting. Over time, they may degrade due to electrical stress, contamination, or weather exposure, leading to cracks, oil leaks, or insulation failure. Replacing damaged bushings involves safely isolating the transformer, draining oil, removing faulty bushings, and installing new ones with proper sealing and torque. Regular inspection and timely replacement prevent outages, improve transformer efficiency, and ensure continued protection against electrical faults and system disruptions.
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