GENEVA, March 29 -- YUNNAN POWER GRID CO., LTD (No.73 Tuodong RoadKunming, Yunnan 650041), 云南电网有限责任公司 (中国云南省昆明市拓东路73号) filed a patent application (PCT/CN2025/122770) for "CONFIGURATION-FREE AND MAINTENANCE-FREE METHOD AND SYSTEM FOR RELAY PROTECTION AND FAULT INFORMATION SUBSTATIONS" on Sep 20, 2025. With publication no. WO/2026/061516, the details related to the patent application was published on Mar 26, 2026.

Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the World Intellectual Property Organization (WIPO)....