MUMBAI, India, Sept. 14 -- Intellectual Property India has published a patent application (202617062819 A) filed by Supergrid Institute on May 18, 2026, for Switching Device For High-Voltage Dc Electric Current With Secure Control.
Inventors include Marquezin, Gwnal; Yang, Yang; Grieshaber, Wolfgang; and Steckler, Pierre-Baptiste.
The application for the patent was published on September 11, 2026, under issue no. 37/2026.
Abstract: The invention relates to a switching device (1) for a high-voltage DC electric current, the device comprising: - a main circuit (16); - a switch module (18) comprising the following branches connected in parallel: - a main branch (24) including a main switching unit (26); - a switch branch (32) comprising a plurality of switch modules (34) in series, wherein each of the switch modules comprises: - a switch capacitor (38) for the flow of current through the switch branch (32); - a switch (41, 42) in series with the switch capacitor (38); - a loop formed by the main branch (24) and the switch branch (32); - a control system (561) for closing the switch and discharging the switch capacitor (38) into the loop; - wherein the switch module (18) comprises a surge suppressor (30) for conduction when the main branch and the switch branch are open.
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