Tata Power-DDL secures patent for transformer moisture protection device

25 Sep 2024 CW Team

Tata Power Delhi Distribution Limited (Tata Power-DDL) has been granted a 20-year patent for its innovative 'Self-Regenerating Transformer Breather,' designed to protect electric transformers from moisture and prolong their operational lifespan. This breakthrough is part of the company's broader efforts to enhance efficiency and reduce maintenance costs in electricity distribution.

The new technology significantly cuts down the need for frequent silica gel replacements, which are commonly used to shield transformers from moisture. Traditionally, silica gel needs replacement four to six times over a two-year maintenance cycle. However, with the self-regenerating breather, this requirement drops to just once every two years, aligning with the regular transformer maintenance schedule.

The self-regenerating breather utilises waste heat from the transformer's top plate to reduce moisture in the air inlet, allowing the silica gel to regenerate. This not only reduces maintenance frequency but also extends the gel's lifespan by up to three years in outdoor conditions.

Developed by Tata Power-DDL's engineering team, the device was first tested in December 2015, with a pilot installation of 20 breathers in 2016-17. The success of these trials led to the patent filing in 2016.

Gajanan S. Kale, Chief Executive Officer, Tata Power-DDL, stated, “At Tata Power-DDL, we continually innovate to tackle operational challenges. This patent showcases our technological expertise, ensuring a resilient infrastructure capable of handling extreme weather conditions while maintaining uninterrupted power supply.”

(ET)

Building Material

11 Dec 2025

Suraj Estate Wins Euromoney Award for India’s Best Residential Developer

"Suraj Estate Developers Limited has received the Euromoney Real Estate Award 2025 for ‘India’s Best Residential Developer’, positioning the company among globally benchmarked leaders in the sector. The recognition reflects its four-decade legacy in delivering high-quality residential and redevelopment-led projects across South Central Mumbai. The Euromoney Real Estate Awards, presented by the London-based Euromoney magazine, are widely regarded as one of the most credible global assessments of performance in real estate, banking and finance. Winners are selected through surveys of inte..

Lloyds Metals, Tata Steel Sign MoU to Explore Strategic Collaboration

"Lloyds Metals and Energy Limited has signed a non-binding Memorandum of Understanding with Tata Steel Limited to evaluate potential areas of strategic cooperation across mining, logistics, pelletisation and steelmaking. The MoU was signed by B Prabhakaran, Managing Director of Lloyds Metals, and Mr T V Narendran, CEO and Managing Director of Tata Steel. The partnership framework aims to leverage the natural operational synergies between both companies and assess opportunities in greenfield steel projects, iron ore mining, slurry pipeline infrastructure, pellet manufacturing in iron ore–ric..

IndiaAI, Gujarat Govt Host Regional Conclave Ahead of 2026 AI Summit

The IndiaAI Mission under the Ministry of Electronics and Information Technology, along with the Government of Gujarat and IIT Gandhinagar, convened a Regional Pre-Summit Event at Mahatma Mandir, Gandhinagar. The initiative is part of the build-up to the India–AI Impact Summit 2026, scheduled for 15–20 February 2026 at Bharat Mandapam, New Delhi. The conclave brought together senior policymakers, technology leaders, researchers and industry practitioners to examine how AI can accelerate economic, digital and social transformation across sectors. The programme focused on the overarching th..