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)

Infrastructure Urban

05 May 2026

Meghalaya And Assam Hold Talks To End Transport Stoppages In Garo Hills

Meghalaya and Assam have opened talks aimed at ending recent stoppages of commodity transport in the Garo Hills, officials said. The deputy chief minister, in charge of home affairs, reported that both state governments are coordinating to resolve disruptions and to restore normal movement of goods. He acknowledged that misunderstandings may have contributed to the incidents and that clarification between administrative units is under way. The discussions are intended to produce practical arrangements that will allow consignments to move without hindrance while respecting local procedures. The..

Kochi Metro Records 1.375 mn Rise In Passengers In FY26

Kochi Metro recorded a marginal rise in ridership in the financial year 2025-26, carrying 1.375 mn more passengers than in the previous year. The service carried 36.8 million (mn) passengers in 2025-26 compared with 35.5 mn in 2024-25, representing a year-on-year increase of 3.9 per cent. The growth was described as distributed rather than concentrated in isolated spikes. A month-wise analysis shows steady gains across quarters. In the first quarter, ridership increased from 8.57 mn to 8.84 mn, while the second quarter rose from 9.13 mn to 9.51 mn. These trends indicated broad-based improvemen..

Ghaziabad Plans 16km Metro Link To Delhi Via Hindon Airport

Ghaziabad authorities are pursuing a 16 km metro link to Delhi that will run via Hindon Airport, and a detailed project report is under way. The plan is intended to improve connectivity between Ghaziabad and the national capital and to provide an interchange with the airport. Officials said the project is being studied to assess alignments, station locations and cost estimates ahead of formal approvals and tendering. The announcement follows the inauguration of the Delhi?Faridabad metro extension, which will offer hassle free travel for around 0.2 mn daily commuters between the national capita..