-
公开(公告)号：US20240305067A1
公开(公告)日：2024-09-12
申请号：US18650676
申请日：2024-04-30
申请人： Hubbell Incorporated
摘要： A spark gap assembly that includes a first spark gap segment and a second spark gap segment electrically connected in series with the first spark gap segment. The first spark gap includes a first spark gap and a first grading circuit electrically connected in parallel with the first spark gap. The second spark gap segment includes a second spark gap and a second grading circuit electrically connected in parallel with the second spark gap.
-
公开(公告)号：US12034379B2
公开(公告)日：2024-07-09
申请号：US17796847
申请日：2021-02-25
申请人： Hitachi, Ltd.
摘要： Provided is a power conversion system that can suppress a fault in a short-circuiting switch that bypasses a fault unit and enhance the reliability and redundancy of the system. The power conversion system is provided with a plurality of power converter units that are formed by using semiconductor switch elements and are connected in series, and comprises: switch elements that are provided to input terminals and/or output terminals of the power converter units and bypass the power converter units; and overvoltage suppressing elements which are connected in parallel with the switch elements and in which conducting states are changed by an application of a prescribed voltage.
-
公开(公告)号：US20240088652A1
公开(公告)日：2024-03-14
申请号：US18455697
申请日：2023-08-25
摘要： A surge protective device includes a first electrical terminal, a second electrical terminal, and an overvoltage protection circuit connected between the first electrical terminal and the second electrical terminal. The overvoltage protection circuit includes a spark gap assembly between the first electrical terminal and the second electrical terminal. The spark gap assembly includes a first spark gap (SG) electrode and a second SG electrode defining a spark gap therebetween, and a trigger circuit operative to ignite a main electric arc between the first and second SG electrodes across the spark gap. The trigger circuit includes a groove defined in the second SG electrode, and a trigger member disposed in the groove. The trigger member is operative to assist formation of a trigger arc.
-
公开(公告)号：US11839021B2
公开(公告)日：2023-12-05
申请号：US18159696
申请日：2023-01-26
发明人： James L Skinner
摘要： A spacing-assured gas discharge tube assembly is installed on a printed circuit board, which may be part of a motor controller. The discharge tube assembly includes a tube body and an electrostatic spacing shield disposed at least partially around the tube body. The shield is configured to prevent close physical proximity of adjacent structures having electrostatic fields that may alter the breakdown voltage of the tube body.
-
公开(公告)号：US11791611B2
公开(公告)日：2023-10-17
申请号：US17507017
申请日：2021-10-21
摘要： An apparatus includes a housing (e.g., a housing having a form factor of a molded case circuit breaker) and at least two phase terminals supported by the housing and configured to be connected to respective ones of at least two phase buses in an electrical panelboard. The apparatus further includes at least one fault generation device supported by the housing and including an arc containment chamber and first and second spaced-apart electrodes in the arc containment chamber and electrically coupled to respective ones of the at least two phase terminals.
-
公开(公告)号：US11710946B2
公开(公告)日：2023-07-25
申请号：US17339388
申请日：2021-06-04
申请人： TDK Electronics AG
发明人： Robert Hoffmann
摘要： A gas arrester is disclosed. In an embodiment a gas arrester for a data line system includes a discharge electrode, a plurality of individual electrodes configured to connect data lines and a common gas discharge region formed between the individual electrodes and the discharge electrode, wherein the gas arrester is configured to reduce voltage differences between lines or line pairs of the data line system with more than 2 lines.
-
公开(公告)号：US20230223749A1
公开(公告)日：2023-07-13
申请号：US17573743
申请日：2022-01-12
CPC分类号： H02H9/041 , H02H9/06 , H02H1/0046
摘要： A surge protective device includes an overvoltage protection circuit and a control module coupled to the overvoltage protection circuit that is configured to monitor at least one performance characteristic of the overvoltage protection circuit and is further configured to communicate the at least one performance characteristic to a destination external to the surge protective device.
-
公开(公告)号：US20230171879A1
公开(公告)日：2023-06-01
申请号：US18159696
申请日：2023-01-26
发明人： James L. Skinner
摘要： A spacing-assured gas discharge tube assembly is installed on a printed circuit board, which may be part of a motor controller. The discharge tube assembly includes a tube body and an electrostatic spacing shield disposed at least partially around the tube body. The shield is configured to prevent close physical proximity of adjacent structures having electrostatic fields that may alter the breakdown voltage of the tube body.
-
公开(公告)号：US20210296863A1
公开(公告)日：2021-09-23
申请号：US17339388
申请日：2021-06-04
申请人： TDK Electronics AG
发明人： Robert Hoffmann
摘要： A gas arrester is disclosed. In an embodiment a gas arrester for a data line system includes a discharge electrode, a plurality of individual electrodes configured to connect data lines and a common gas discharge region formed between the individual electrodes and the discharge electrode, wherein the gas arrester is configured to reduce voltage differences between lines or line pairs of the data line system with more than 2 lines.
-
公开(公告)号：US10992130B2
公开(公告)日：2021-04-27
申请号：US16124509
申请日：2018-09-07
申请人： WIDEX A/S
摘要： A head-worn device comprises a housing with an insulating housing wall and is housing a conducting element (24; 31) having at least one end embedded into the housing wall, and a component (22; 30) being arranged adjacent to the conducting element (24; 31). The component (22; 30) and the conducting element (24; 31) are being separated by a partitioning element (26; 28; 40) provided as an insulator. The partitioning element (26; 28; 40) is having a shape increasing the travelling distance for a spark between the conducting element (24; 31) and the component (22; 30) by at least 40%, and a thickness and a Dielectric Strength sufficient to resist 3 kV without breaking down.
-
-
-
-
-
-
-
-
-
搜索结果
1004 条记录 (耗时 0.024 秒)
