MUMBAI, India, Feb. 13 -- Intellectual Property India has published a patent application (202541103061 A) filed by Powergear Limited, Chennai, Tamil Nadu, on Oct. 25, 2025, for 'a system and method for a spiral-welded aluminum alloy busduct assembly incorporating a pressurized gas insulation environment.'
Inventor(s) include Rajesh X Durairaj.
The application for the patent was published on Feb. 13, under issue no. 07/2026.
According to the abstract released by the Intellectual Property India: "A continuous spiral forming process produces an aluminum enclosure (101) from an aluminum alloy coil into a seamless cylindrical tube with uniform wall thickness, within which an aluminum conductor (102) is arranged coaxially. An insulating member (103) is interposed between the two, and a welding subsystem utilizing advanced techniques such as friction stir welding - forms a continuous weld seam along overlapping edges. The system further integrates a pressurized gas insulation subsystem that maintains a controlled insulating gas (e.g., SF6, nitrogen, or dry air or g3 or combination of these) within an annular space between the conductor (102) and the enclosure (101) through a gas filling port and a pressure regulating device. Terminal components at the enclosure's ends allow connection to external high voltage and high current power distribution apparatus, making the invention applicable to advanced electrical distribution systems."
Disclaimer: Curated by HT Syndication.
