-
公开(公告)号：US12114464B2
公开(公告)日：2024-10-08
申请号：US17725169
申请日：2022-04-20
发明人： Chun-Teng Chiu
CPC分类号： H05K7/20236 , H05K7/20263
摘要： A liquid immersion cooler includes a metal case, a soldering layer, a heat conduction layer, and a porous structure. The metal case has a heated surface and a cooling surface disposed on back of the heated surface. The soldering layer is laid on the cooling surface. The heat conduction layer is laid on the soldering layer. The porous structure is laid on the heat conduction layer. Therefore, the waste heat from an electronic heat source may be rapidly dissipated.
-
公开(公告)号：US20240297491A1
公开(公告)日：2024-09-05
申请号：US18646937
申请日：2024-04-26
CPC分类号： H02H3/00 , H02H1/0015 , H02H3/08 , H02H9/02 , H02H9/041
摘要： A crowbar module includes first and second electrical terminals, a module housing, and first and second crowbar units. The first crowbar unit is disposed in the module housing and includes a first thyristor electrically connected between the first and second electrical terminals. The second crowbar unit is disposed in the module housing and includes a second thyristor electrically connected between the first and second electrical terminals in electrical parallel with the first crowbar unit.
-
公开(公告)号：US12055444B2
公开(公告)日：2024-08-06
申请号：US17961910
申请日：2022-10-07
发明人： Boris Borin
CPC分类号： G01K1/026 , G01K1/024 , G01K7/22 , G01K13/00 , H01R13/665 , H01R13/6666 , H01R13/6683
摘要： An electric vehicle supply equipment device includes a removable grid cord having an electrical plug and a device housed within the electrical plug. The device has a plurality of temperature sensing elements, a control module, and an electrical circuit electrically coupling the plurality of temperature sensing elements and the control module, the electrical circuit having an electrical power carrying conductor. The device further includes an in-cable control protection device. The control module communicates an indication of a temperature condition of the electrical plug to the in-cable control protection device via the electrical power carrying conductor.
-
公开(公告)号：US11942776B2
公开(公告)日：2024-03-26
申请号：US17821651
申请日：2022-08-23
申请人： Robert B. Stuart , Ronald E. Smith
发明人： Robert B. Stuart , Ronald E. Smith
CPC分类号： H02H3/162 , H02H1/0007
摘要： A system for preventing ground fault in a three-phase electric transmission line system caused by a line break, includes: the transmission lines, a programmable relay protection system, including a plurality of existing low sensitivity (LS) relays and a corresponding set of high sensitivity (HS) relays in parallel with the is relays. The HS relays on each line are programmed to include: preset acceptable operating parameter ranges of at least two electric operating conditions, at least one high sensitivity instantaneous undercurrent and at least one high sensitivity condition selected from line differential overcurrent and negative sequence overcurrent (and combinations thereof); monitoring; permitting closed circuit operation when all of the lines show that the two operating conditions are within the preset acceptable operating parameter ranges; tripping a circuit breaker on a broken line when that line shows that the two operating conditions are outside the preset parameter ranges; and shutting down power to the broken line before it otherwise causes a ground fault or other short circuit.
-
公开(公告)号：US11879654B2
公开(公告)日：2024-01-23
申请号：US17053096
申请日：2018-07-11
发明人： Ken Nakamura , Takayoshi Kubo
IPC分类号： H02H3/00 , F24F11/56 , F24F1/0007 , F24F1/06 , F24F3/00 , F24F11/88 , H03K17/28 , H02H3/093 , H04L12/413
CPC分类号： F24F11/56 , F24F1/0007 , F24F1/06 , F24F3/00 , F24F11/88 , H02H3/093 , H03K17/28 , H04L12/413
摘要： Provided is a transmission device for transmitting and receiving data through a transmission channel. The transmission device includes a transmission circuit unit configured to transmit data to the transmission channel. When an overcurrent caused by a simultaneous transmission of data to the transmission channel is detected during data transmission, the transmission circuit unit increases an output resistance, which is a resistance value for an output to the transmission channel, to an resistance value corresponding to a characteristic of a facility equipment item that transmits data to the transmission channel at the same time as itself.
-
公开(公告)号：US11831149B2
公开(公告)日：2023-11-28
申请号：US17280250
申请日：2019-09-26
CPC分类号： H02H3/33 , G01R31/52 , H02H1/0015
摘要： To recognize a fault in an arrangement including a transformer having a primary winding connected in series with a DC voltage line and a secondary winding coupled magnetically to the primary winding, and including an evaluation unit that processes a secondary signal on the secondary winding, a signal component at at least one frequency is determined from the secondary signal and a signal level of the signal component is compared with a signal threshold. The fault is detected when the signal level falls below the signal threshold.
-
7.发明公开公开(公告)号：US20230361552A1
公开(公告)日：2023-11-09
申请号：US18181482
申请日：2023-03-09
发明人： Hongwen Liu , Xianping Zhao , Jindong Yang , Chenchao Chai , Lijun Tang , Ding Nie , Quancong Zhu , Yongjie Nie , Dexu Zou , Shaolei Zhai , Zhilei Zhang
摘要： The embodiments of the present invention disclose a line protection method and a related apparatus for a flexible grounding system of a power distribution network. The method comprises outputting a first compensation voltage by a voltage source of a flexible grounding device of each line of a target power distribution network in the case where a ground fault occurs in the target power distribution network; starting to calculate the zero-sequence impedance of each line in real time by the zero-sequence impedance protection device; after the first compensation voltage is output for a first output duration, outputting a second compensation voltage; calculating the zero-sequence impedance of each line in real time by the line zero-sequence impedance protection device; determining a fault line by the zero-sequence impedance protection device, and cutting off the fault line to isolate the ground fault after a trip for a preset time delay.
-
公开(公告)号：US20230275418A1
公开(公告)日：2023-08-31
申请号：US18121227
申请日：2023-03-14
发明人： Xin Zhou , Brian E. Carlson , Yanjun Feng , Jianyang Liu , Michael Slepian , Andrew L. Gottschalk , Santhosh Kumar Chamarajanagar Govinda Nayaka
CPC分类号： H02H3/0935 , G01R15/14 , H02H3/006
摘要： A circuit interrupter including a current sensor having a normal sensor output and an over current detection output, a solid state switch module structured to have a closed state to allow current to flow through the circuit interrupter and an open state to interrupt current flowing through the circuit interrupter, a gate driver structured to control the solid state switch module including a desaturation function output, wherein the gate driver is structured to cause the solid state switch module to interrupt current flowing through the circuit interrupter when the DESAT function output changes to the on state, and an electronic trip circuit structured to output a trip signal to the gate driver when the normal sensor output reaches a first threshold level or the overcurrent detection output changes to the on state.
-
9.发明公开公开(公告)号：US20230261461A1
公开(公告)日：2023-08-17
申请号：US17672422
申请日：2022-02-15
申请人： Robert `B. Stuart , Ronald E. Smith
发明人： Robert `B. Stuart , Ronald E. Smith
摘要： A method for preventing ground fault in a three-phase electric transmission line system caused by a line break, includes: providing a programmable relay protection system, including a plurality of relay devices on each line, programmed to include: preset parameter ranges of at least two electric operating conditions, at least one high sensitivity instantaneous undercurrent and at least one high sensitivity condition selected from line differential overcurrent and negative sequence overcurrent (and combinations thereof), the preset ranges being acceptable operating parameter ranges; monitoring; permitting closed circuit operation when all of the lines show that the two operating conditions are within the preset acceptable operating parameter ranges; tripping a circuit breaker on a broken line when that line shows that the two operating conditions are outside the preset parameter ranges; and shutting down power to the broken line before it otherwise causes a ground fault or other short circuit.
-
公开(公告)号：US11682890B2
公开(公告)日：2023-06-20
申请号：US16984257
申请日：2020-08-04
申请人： ABB Schweiz AG
发明人： Daniele Angelosante
摘要： An electronic protection device for electric power distribution grids, the electronic protection device being adapted to control one or more switching devices in an electric power distribution grid and being capable of communicating, at local level, with one or more sensors or electronic devices of the electric power distribution grid and, at remote level, with a remote computerised platform. The electronic protection device is adapted to receive first grid monitoring data indicative of physical quantities related to the operation of the electric power distribution grid from the sensors or electronic devices, the first grid monitoring data including at least measured values indicative of a line current flowing along an electric line of the electric power distribution grid. The electronic protection device is adapted to carry out a predictive monitoring procedure of the operating conditions of the electric power distribution grid.
-
-
-
-
-
-
-
-
-
搜索结果
4078 条记录 (耗时 0.024 秒)
