One of three 16 MVA power transformers at the Pattabhiram substation was damaged by fire. The incident caused a night-long power cut in the locality. Tamil Nadu Generation and Distribution Corporation replaced and energised the transformer within days.
Lessons learned
Maintain spare transformers for rapid replacement after fire damage.
Plan for staged load transfer when commissioning replacement units.
Address residual minor disruptions promptly after major equipment failure.
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