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71.发明授权公开(公告)号：US12062907B2
公开(公告)日：2024-08-13
申请号：US17856621
申请日：2022-07-01
发明人： Meng Li , Jinghan He , Keao Chen , Dahai Zhang , Pinghao Ni , Yin Xu , Xiaojun Wang , Guomin Luo , Xiangyu Wu , Fang Zhang
CPC分类号： H02H7/268 , G01R31/086 , G01R31/088
摘要： The present disclosure relates to a method for protecting DC line impedance phase based on protection and control coordination, and an application scenario of the method for protecting is a three-terminal flexible DC transmission network. The method uses high controllability of a converter after a fault, injects a characteristic signal at a characteristic frequency, and calculates a phase angle of input impedance to determine a fault interval, which effectively improves protection performance, turns passive to active, and is not affected by nonlinearity of the converter. At the same time, compared with a full-bridge MMC, using a half-bridge MMC does not need to perform fault ride-through first when identifying a fault, and does not need to add additional equipment, it creates fault features and can reliably identify an fault interval; improves protection quickness and at the same time also has better economic benefits. It has selectivity, and an entire system may not be shut down due to failure of a single line.
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公开(公告)号：US12061456B2
公开(公告)日：2024-08-13
申请号：US17041520
申请日：2019-07-16
发明人： Anthony D. Parfitt
IPC分类号： G05B19/042 , G01J5/00 , G01J5/12 , G08B21/18 , G08C17/02 , H01R13/713 , H02H5/04 , G08B3/10 , G08B5/22
CPC分类号： G05B19/0428 , G01J5/0096 , G01J5/12 , G08B21/182 , G08C17/02 , H01R13/7137 , H02H5/045 , G01J2005/123 , G05B2219/24024 , G08B3/10 , G08B5/22 , G08B21/185
摘要： An electrical safety device is described which includes a socket arranged to receive an electrical plug of an electrical appliance to connect a current supply to the electrical appliance, a thermal sensor arranged to detect the surface temperature of an electrical plug when received in the socket and a processor in communication with the thermal sensor, the processor configured to determine when the sensed surface temperature exceeds a predetermined threshold. The invention also includes an electrical safety system comprising the electrical safety device configured to communicate with a remote device. The device and system provide early detection of electrical faults and hazards to reduce the risk of fires.
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公开(公告)号：US20240266824A1
公开(公告)日：2024-08-08
申请号：US18409311
申请日：2024-01-10
申请人： DEHN SE
发明人： Klaus Bühler , Arnd Ehrhardt , Marco Kellermann
IPC分类号： H02H9/04
CPC分类号： H02H9/04
摘要： A surge arrester for DC mains comprises a spark gap for extinguishing mains follow currents in the DC mains, the current intensity of which is equal to or greater than a specified current threshold, and a triggerable extinguishing aid assigned to the spark gap, which is set up to extinguish mains follow currents below the specified current threshold. The surge arrester further comprises an evaluation module for triggering the extinguishing aid, the evaluation module being set up to trigger the extinguishing aid as soon as at least two tripping conditions are fulfilled which are characteristic of the fact that the spark gap alone 10 cannot extinguish the mains follow current within a specified time duration. Furthermore, a method of operating such a surge arrester is described.
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公开(公告)号：US20240266819A1
公开(公告)日：2024-08-08
申请号：US18576685
申请日：2022-07-03
发明人： Tobias GROTE , Lutz HEUER
CPC分类号： H02H3/10 , G01R15/202 , G01R19/10
摘要： A method for fault current monitoring during electrical coupling of a direct voltage load, via positive and negative conductors, to a direct voltage source, includes detecting a magnetic field formed around the positive and negative conductors; comparing the detected magnetic field with respect to a threshold value; and disconnecting the direct voltage load if the threshold value is passed. Further, a direct voltage switching device for coupling a direct voltage load, via positive and negative conductors, to a direct voltage source where the positive and negative conductors are routed through the direct voltage switching device, includes a switching element for coupling and decoupling the direct voltage load, a sensor for detecting a magnetic field formed around the positive and negative conductors; and an evaluation device, connected to the sensor and the switching element, for comparing the detected magnetic field with a threshold value and to activate the switching element to disconnect the direct voltage load when the threshold value is passed.
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公开(公告)号：US20240266131A1
公开(公告)日：2024-08-08
申请号：US18638207
申请日：2024-04-17
申请人： Pass & Seymour, Inc.
CPC分类号： H01H71/0207 , H01H71/04 , H02H3/044
摘要： A protective electrical wiring device including: a plurality of line terminals including a first line terminal and a second line terminal; a plurality of load terminals including a first load terminal and a second load terminal, wherein the plurality of line terminals and the plurality of load terminals are configured to be coupled to an AC electrical distribution system; a pair of contacts including a first contact and a second contact; and a latch block being configured to move between a first position and a second position, wherein in the first position the latch block permits the first line terminal and the first load terminal to be in contact with the first contact and the second line terminal and second load terminal to be in contact with the second contact, wherein, when moving from the first position to the second position, the latch block advances at least one of the first line terminal and the first load terminal away from the first contact and at least one of the second line terminal and the second load terminal away from the second contact.
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公开(公告)号：US20240264212A1
公开(公告)日：2024-08-08
申请号：US18570296
申请日：2022-05-19
摘要： A method of remotely determining an impedance of an earth connection (142) of a first electrical equipment (122) connected to a power supply network (300). The method comprises receiving (606), from a first measurement node (302) connected to the first electrical equipment, a first value of an insulation impedance of the power supply network and receiving (612), from a second measurement node (304) connected to the power supply network, a second value of an insulation impedance of the power supply network. The method further comprises calculating (614) the impedance of the earth connection of the first electrical equipment using the first value of the insulation impedance of the power supply network, the second value of the insulation impedance of the power supply network and a known impedance value of an earth connection (144) of the second measurement node.
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公开(公告)号：US12057684B2
公开(公告)日：2024-08-06
申请号：US17624421
申请日：2020-06-03
摘要： A variable frequency electromagnetic compensating device for protecting wind tower blades or other mobile or static structures includes two conductive adapters of connection (1, 2) charged, one (1) of the connections of the device with the external collectors of the element to be protected on the one hand and another (2) of the connections with the earth, on the other hand; and two elements of high reactance to the passage of high frequency current and absorbers of energy in form of heat (3, 4) connected on both sides of a frequency resonator composed of a dielectric insulator (9) located between a first and a second conductive elements (7, 8) and respectively to the two adapters (1, 2), generating a force against electromotive to the passage of initial high frequency current, lowering the frequency and absorbing a part of the energy generated in heat.
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公开(公告)号：US12057667B2
公开(公告)日：2024-08-06
申请号：US17740797
申请日：2022-05-10
申请人： Norman R. Byrne
IPC分类号： H01R27/02 , H01R13/66 , H01R13/68 , H01R13/717 , H01R24/68 , H01R27/00 , H01R103/00 , H02H9/04
CPC分类号： H01R27/02 , H01R13/6666 , H01R13/7175 , H01R24/68 , H02H9/045 , H01R13/68 , H01R27/00 , H01R2103/00
摘要： An electrical plug provides protection against electrical surges with a replaceable surge protector cartridge that is readily removable and replaceable along an exterior of the plug. Surge protector circuitry in the cartridge can absorb an electrical surge received at the plug from an electrical mains source, and the electrical plug can maintain electrical continuity from plug prongs to an electrical cord both before and after the surge protector has absorbed an electrical surge.
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公开(公告)号：US12055963B1
公开(公告)日：2024-08-06
申请号：US18327834
申请日：2023-06-01
申请人： VIA LABS, INC.
发明人： Jung-Chang Liu
摘要： A PD controller integrated circuit of a USB apparatus is disclosed, including a CC pad, a first switch, a second switch, a PD controller circuit, a high voltage sensing circuit, and a switch control circuit. The high voltage sensing circuit senses the CC pad. When a current voltage of the CC pad does not exceed a rated range, the first switch and the second switch connected in series between the CC pad and the PD controller circuit are turned on. When the current voltage exceeds the rated range, the first switch and the second switch are turned off, and the switch control circuit maintains a voltage of a common node between the first switch and the second switch at a reduced level lower than the current voltage.
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公开(公告)号：US12055569B2
公开(公告)日：2024-08-06
申请号：US18317806
申请日：2023-05-15
发明人： David J. Clarke , Stephen Denis Heffernan , Nijun Wei , Alan J. O'Donnell , Patrick Martin McGuinness , Shaun Bradley , Edward John Coyne , David Aherne , David M. Boland
IPC分类号： G01R19/165 , G01R31/00 , G01R31/28 , H01L23/525 , H01L23/60 , H01L23/62 , H01L27/02 , H02H9/00 , H02H9/04
CPC分类号： G01R19/16504 , G01R31/002 , G01R31/2832 , G01R31/2856 , H01L23/5256 , H01L23/60 , H01L23/62 , H01L27/0288 , H02H9/00 , H02H9/042
摘要： The disclosed technology generally relates to electrical overstress protection devices, and more particularly to electrical overstress monitoring devices for detecting electrical overstress events in semiconductor devices. In one aspect, an electrical overstress monitor and/or protection device includes a two different conductive structures configured to electrically arc in response to an EOS event and a sensing circuit configured to detect a change in a physical property of the two conductive structures caused by the EOS event. The two conductive structures have facing surfaces that have different shapes.
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