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公开(公告)号：EP4075467A1
公开(公告)日：2022-10-19
申请号：EP20899597.7
申请日：2020-12-09
发明人： CHANG, Min , HUANG, Xiaobeng , XIA, Tiexin , GUO, Zhengcao , ZENG, Wei , JIN, Haiyong
IPC分类号： H01H35/26 , H01H35/24 , G01R31/327 , G01N9/00 , G01D21/02
摘要： The present disclosure provides a method for modifying a gas density relay and a gas density relay having an online self-check function and a check method therefor. The gas density relay having an online self-check function is used for high-voltage and medium-voltage electrical devices, and includes a gas density relay body, a gas density detection sensor, a gas path blocking pressure regulation mechanism, an online check contact signal sampling unit and an intelligent control unit. The intelligent control unit controls a blocking member of the gas path blocking pressure regulation mechanism to move, so as to block a gas path between a first interface and a second interface. Moreover, a volume of a sealed cavity changes, a gas pressure of the gas density relay body slowly falls, thereby generating contact action, the contact action is transmitted to the intelligent control unit by means of the online check contact signal sampling unit, and the intelligent control unit detects an alarm and/or blocking contact signal action value and/or return value according to a density value during the contact action, such that check can be completed without maintenance personnel on site, and the reliability and efficiency of a power grid are greatly improved while cost is lowered.
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2.发明公开
公开(公告)号：EP4027155A1
公开(公告)日：2022-07-13
申请号：EP20861565.8
申请日：2020-08-26
发明人： XIA, Tiexin , HE, Bing , CHANG, Min , GUO, Zhengcao , LIAO, Haiming , JIN, Haiyong , WANG, Enlin
IPC分类号： G01R31/327 , G01N9/26 , H01H35/26
摘要： The application provides a modification of gas density relay, a gas density relay with online self-check function and its check method for high-voltage and medium-voltage electrical equipment. The gas density relay includes a gas density relay body, a gas density sensor, a pressure regulating mechanism, a valve, an online check contact signal sampling unit and an intelligent control unit. The pressure is increased or decreased by the pressure regulating mechanism to enable the contact action of the gas density relay body. The contact action is transmitted to the intelligent control unit through the online check contact signal sampling unit. The intelligent control unit detects the alarm and/or blocking contact signal operating value and/or return value of the gas density relay body according to the density value of the contact action; the check of the gas density relay can be completed without maintenance personnel on site. It has remote reading function to realize free maintenance and significantly improve the reliability of the power grid and the work efficiency, as well as reduces the O&M cost.
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3.发明公开
公开(公告)号：EP4027469A1
公开(公告)日：2022-07-13
申请号：EP20860507.1
申请日：2020-08-26
发明人： JIN, Haiyong , XIA, Tiexin , HUANG, Xiaobeng , GUO, Zhengcao , CHANG, Min , WANG, Lele
IPC分类号： H02B13/065 , H01H35/26 , G01R31/327 , G01N9/00
摘要： The application provides an electrical system with online sampling and check function and its check method for high-voltage and medium-voltage electrical equipment, including electrical equipment, gas density relay, gas density sensor, temperature regulation mechanism, online check contact signal sampling unit and intelligent control unit. The temperature rise and fall of the temperature compensation element of the gas density relay is regulated through the temperature regulation mechanism to enable the contact action of the gas density relay of electrical equipment. The contact action is transmitted to the intelligent control unit through the online check contact signal sampling unit. The intelligent control unit detects the alarm and/or blocking contact signal operating value and/or return value according to the density value of the contact action; the check of the gas density relay can be completed without maintenance personnel on site, which greatly improves the reliability of the power grid and the work efficiency, and reduces the O&M cost. At the same time, it also realizes the mutual self-inspection between gas density relay and gas density sensor, and further realizes the maintenance-free.
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公开(公告)号：EP4027366A1
公开(公告)日：2022-07-13
申请号：EP20861074.1
申请日：2020-08-26
发明人： JIN, Haiyong , XIA, Tiexin , HUANG, Xiaobeng , GUO, Zhengcao , CHANG, Min , WANG, Lele
摘要： Provided are a maintenance-free gas density relay and a mutual check method therefor. The maintenance-free gas density relay includes a gas density relay body and first gas density detection sensors which are in communication on gas paths, and an intelligent control unit connected to the gas density relay body and the first gas density detection sensors separately, where the intelligent control unit compares and checks a first pressure value and a second pressure value acquired at the same gas pressure, and/or compares and checks a first temperature value and a second temperature value acquired at the same gas temperature, or compares and checks a first density value and a second density value acquired at the same gas density, and can further upload received data to a background for data comparison by the background. The present disclosure further completes online self-check or mutual check of the gas density relay while being used for monitoring gas density of a gas-insulated or arc-control electrical apparatus, thereby improving efficiency, avoiding maintenance, reducing cost, and ensuring safe operation of a power grid.
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公开(公告)号：EP4027152A1
公开(公告)日：2022-07-13
申请号：EP20860654.1
申请日：2020-08-26
发明人： JIN, Haiyong , XIA, Tiexin , HUANG, Xiaobeng , GUO, Zhengcao , CHANG, Min , WANG, Lele , ZENG, Wei , WU, Yehong
摘要： The modification method for the gas density relay, the gas density relay with the online self-check function and the check method thereof provided by this application are used for high-voltage and medium-voltage electrical equipment, including a gas density relay body, a gas density detection sensor, a temperature regulating mechanism, an online check contact signal sampling unit and an intelligent control unit. Regulate temperature rise and fall of the temperature compensation element of the gas density relay body through the temperature regulating mechanism, which leads to a contact action of the gas density relay body, the contact action is transferred to the intelligent control unit through the online check contact signal sampling unit, and the intelligent control unit detects the operating value and/or return value of the contact signal of the gas density relay body based on the density value at the time of contact action. The gas density relay check can be completed without maintainer at the site, so as to realize free maintenance, greatly improve the reliability of power grid, increase work efficiency and reduce the cost.
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