Gokak Textiles Ltd, a prominent player in India’s textile and renewable energy sectors, has reported a significant operational setback following the failure of a 25 MVA power transformer at its solar power plant located in Gokak Falls, Karnataka. The incident occurred on May 13, 2025, durin...
Gokak Textiles Ltd, a prominent player in India’s textile and renewable energy sectors, has reported a significant operational setback following the failure of a 25 MVA power transformer at its solar power plant located in Gokak Falls, Karnataka. The incident occurred on May 13, 2025, during a severe lightning storm that disrupted the 110 KV grid supply and triggered a cascade of electrical faults across the facility2.
The company has confirmed that both transformers—PTR-1 and PTR-2—tripped during the storm. While PTR-1 was successfully restored after a trial test later that night, PTR-2 suffered internal damage and remains non-operational. Gokak Textiles is currently assessing the full extent of the damage and has initiated repair procedures in coordination with external experts and the original equipment manufacturer (OEM).
What Happened: A Timeline of Events
At approximately 7:25 PM on May 13, a lightning strike coincided with a grid failure, causing both 25 MVA transformers to trip. Visual inspections conducted after the weather cleared revealed no immediate faults in the control relay panels. PTR-1 was successfully recharged at 11:30 PM the same night.
However, PTR-2 tripped again during its trial test at 12:30 AM on May 14, triggering an overcurrent fault and activating the Buchholz relay alarm—a clear indication of internal transformer issues. Suspecting damage to the Y-phase winding, the company called in an external testing team to conduct a magnetising balance current test, which confirmed the fault2.
On May 15, after draining 15,400 litres of transformer oil and conducting a physical inspection, the team discovered that the Y-phase coil and winding were indeed damaged. Due to the complexity of the repair, the transformer will be sent to the manufacturer’s facility for restoration.
Damage Control and Recovery Measures
Gokak Textiles has assured stakeholders that it is taking all necessary steps to restore normal operations at the solar plant. The company has adequate insurance coverage and has already notified both the OEM and its insurance provider. A surveyor has been appointed to assess the situation and determine the financial impact.
In its official communication to the Bombay Stock Exchange (BSE), the company emphasized its commitment to safety and operational resilience. “We are currently ascertaining the actual loss caused due to the transformer failure. The company is taking steps to ensure normal operation at the plant at the earliest,” the statement read.
Despite the setback, the company has not reported any disruption to its textile manufacturing operations, which remain unaffected by the transformer failure at the solar facility.
Market Reaction and Investor Outlook
The announcement has sparked cautious interest among investors, with some expressing concern over potential delays in energy generation and cost implications. However, analysts believe the incident is unlikely to have a long-term impact on the company’s financial health, given its insurance coverage and proactive response.
“Gokak Textiles has handled the situation with transparency and technical diligence,” said a senior analyst at a Bengaluru-based brokerage. “While transformer failures are serious, the company’s swift action and contingency planning are reassuring.”
Weather Woes and Infrastructure Challenges
This incident highlights the vulnerability of industrial infrastructure to extreme weather events, especially in regions prone to monsoons and lightning storms. Gokak Textiles has previously faced similar challenges, including a fire at the same solar plant earlier this year.
Experts suggest that companies operating renewable energy assets must invest in advanced surge protection systems and real-time monitoring to mitigate such risks. The textile firm’s experience could serve as a case study for other players in the sector.
What’s Next
Gokak Textiles is expected to provide a detailed update once the damage assessment is complete and repair timelines are finalized. The company’s next quarterly earnings report may shed further light on the financial implications of the transformer failure.
In the meantime, stakeholders are watching closely as the company navigates this technical challenge with a mix of engineering precision and operational resilience.
Sources: Gokak Textiles’ Official Intimation to BSE, MarketScreener UAE, Rediff Money