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    China Southern Power Grid Ehv Power Trans Company Wuzhou Bureau Applies for Patent on Secondary Ground Grid Voltage Monitoring Device and Method


    June 21, 2022 - Electrical Patent News

     

      Beijing, June 21 -- China Southern Power Grid Ehv Power Trans Company Wuzhou Bureau has applied for Chinese patent for secondary ground grid voltage monitoring device and method. Wen Caiquan, Huang Yongfeng and Quan Jiexiong developed it.

      The patent application number is CN202110342046 20210330. The patent publication number is CN112986665 (A). International Patent Classification codes are G01R19/165 and G01R19/25. Cooperative Patent Classification codes are G01R19/16538 (CN) and G01R19/25 (CN).

      The abstract of the patent published by the State Intellectual Property Office of China states: "The invention relates to a secondary ground grid voltage monitoring device and method. The device comprises a voltage acquisition device, a main controller, a storage device and an alarm device. The main controller is connected with the voltage acquisition device, the storage device and the alarm device; the voltage acquisition device is used for acquiring the voltage of a secondary grounding grid to a primary grounding grid, obtaining sampling information and sending the sampling information to the main controller; the main controller is used for judging whether the voltage is larger than or equal to a preset voltage threshold value or not according to the sampling information, controlling the storage device to store the sampling information when the voltage is larger than or equal to the preset voltage threshold value, and outputting alarm information through the alarm device. The secondary ground screen voltage monitoring device can effectively detect the grounding condition of a secondary ground grid of a power plant or a transformer substation, provides a maintenance basis for maintenance personnel, solves the current situation problem that the secondary ground grid is not monitored, and is beneficial to improving the operation safety of a power system."

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