Method of locating internal arcing in a gas-insulated line and an associated device

    公开(公告)号:US09702922B2

    公开(公告)日:2017-07-11

    申请号:US13806099

    申请日:2011-06-23

    IPC分类号: G01R31/08 G01R31/12 G06F17/00

    摘要: A method and a device for locating internal arcing that occurs in a compartment (CPi) of a gas-insulated line (L), each compartment being provided with at least one pressure sensor (Pi). The method comprises: triggering pressure measurements in a compartment as soon as the difference between the currents that flow through two current toroids (TCi) around two adjacent compartments exceeds a threshold value indicating the occurrence of internal arcing in the compartment; calculating a period Δt that separates the time at which the pressure detector began to detect a pressure variation and the time at which the internal arcing occurred; and calculating a distance d that separates the place at which the internal arc is formed from the position of the pressure sensor using the equation d=V/Δt in which V is the speed of sound in the gas.

    METHOD OF LOCATING INTERNAL ARCING IN A GAS-INSULATED LINE AND AN ASSOCIATED DEVICE
    2.
    发明申请
    METHOD OF LOCATING INTERNAL ARCING IN A GAS-INSULATED LINE AND AN ASSOCIATED DEVICE 有权
    在气体绝缘管线和相关设备中定位内部弧光的方法

    公开(公告)号:US20130191050A1

    公开(公告)日:2013-07-25

    申请号:US13806099

    申请日:2011-06-23

    IPC分类号: G01R31/08 G06F17/00

    摘要: A method and a device for locating internal arcing that occurs in a compartment (CPi) of a gas-insulated line (L), each compartment being provided with at least one pressure sensor (Pi). The method comprises: triggering pressure measurements in a compartment as soon as the difference between the currents that flow through two current toroids (TCi) around two adjacent compartments exceeds a threshold value indicating the occurrence of internal arcing in the compartment; calculating a period Δt that separates the time at which the pressure detector began to detect a pressure variation and the time at which the internal arcing occurred; and calculating a distance d that separates the place at which the internal arc is formed from the position of the pressure sensor using the equation d=V/Δt in which V is the speed of sound in the gas.

    摘要翻译: 一种用于定位在气体绝缘线(L)的隔室(CPi)中发生的内部电弧的方法和装置,每个隔室设置有至少一个压力传感器(Pi)。 该方法包括:一旦流经两个邻近隔室周围的两个当前环形线圈(TCi)的电流之间的差异超过指示隔室中内部电弧发生的阈值,则触发隔室中的压力测量; 计算一个时间段Deltat,分离压力检测器开始检测压力变化的时间和发生内部电弧的时间; 并且使用等式d = V / Deltat计算从压力传感器的位置形成内部电弧的位置的距离d,其中V是气体中的声速。

    ENCLOSURE FOR A CONDUCTOR OF ELECTRICITY, THE ENCLOSURE BEING PROVIDED WITH CURRENT SENSORS
    3.
    发明申请
    ENCLOSURE FOR A CONDUCTOR OF ELECTRICITY, THE ENCLOSURE BEING PROVIDED WITH CURRENT SENSORS 审中-公开
    电力传导器的外壳,外壳采用电流传感器

    公开(公告)号:US20120182708A1

    公开(公告)日:2012-07-19

    申请号:US13392695

    申请日:2010-09-24

    IPC分类号: H05K5/06 H05K5/00

    摘要: A characteristic enclosure, configured to surround a linear conductor, includes at least one internal cavity for receiving at least one fiber optic sensor or current transformer sensor wound about the enclosure and giving a measurement of current. The cavity is closed except at openings of small size in the outer wall through which the sensors are inserted, or are removed to replace them, and through which they are connected to a measuring apparatus. The enclosure includes grooves arranged on its surface or in separate tubes for guiding and maintaining loops of the sensors. Advantageously, one of the walls of the enclosure extends the walls of the adjacent enclosures for a regular flow of current induced along the enclosure.

    摘要翻译: 构造成围绕线性导体的特征外壳包括至少一个内部空腔,用于接收围绕外壳缠绕的至少一个光纤传感器或电流互感器传感器,并给出电流测量。 除了在传感器被插入的外壁中的小尺寸的开口或者被移除以更换它们之外,空腔是封闭的,并且它们通过它们连接到测量装置。 外壳包括在其表面上或分开的管中布置的凹槽,用于引导和保持传感器的环。 有利地,外壳的一个壁延伸相邻外壳的壁,用于沿外壳引起的规则的电流。