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WO/2021/130447A1 |
The invention relates to a device (D) for detecting a fault in an electrical network (1), comprising at least one electrical equipment (E) which is electrically connected to a first power conductor (C1) and to a second power conductor (C...
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WO/2021/130449A1 |
The invention relates to a member (O1) for measuring a magnitude representative of a common mode voltage (Vres) in an electrical network (1) or in an equipment (E), the network (1) or the equipment (E) comprising at least one first power...
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WO/2021/130448A1 |
The invention relates to a member (O1) for measuring a variable representative of a common mode voltage (Vres) in an electrical network (1) or in a device (E), the network (1) or the device (E) comprising at least a first power conductor...
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WO/2021/122234A1 |
The invention relates to a protection device (8) for an electric DC grid (1), in particular for a high-voltage grid. According to the invention, the protection device (8) comprises: - a first voltage measuring device (SV1) between a posi...
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WO/2021/122811A1 |
A plug-in contact apparatus (100) for extinguishing an arc comprises a main contact, HA (112), and an auxiliary contact, HI (114), which each comprise a first contact half, HA1 (112-1) and, respectively, Hl1 (114-1), and a second contact...
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WO/2021/122187A1 |
Disclosed is a voltage converter (10) comprising at least one arm (24) extending between a first DC terminal (16) and a second DC terminal (28) and comprising at least one upper half-arm (24u) and one lower half-arm (24l) that are connec...
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WO/2021/125269A1 |
For example, an overcurrent protection circuit 71 has a hiccup control unit 71b for hiccup-driving a switching element 10 so as to repeat predetermined on-time ton and off-time toff when the output current Io flowing through the switchin...
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WO/2021/122812A1 |
The invention relates to a plug contact apparatus (100) for extinguishing an electric arc using an extension, comprising a main contact, HA (112), and an auxiliary contact, Hl (114). HA (112) and Hl (114) each comprise a first contact ha...
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WO/2021/124719A1 |
This semiconductor circuit that is connected to a load circuit and controls the supply of power to the load circuit is provided with: a power supply line to which a power supply voltage is applied; an overvoltage protection unit having a...
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WO/2021/121967A1 |
The electronics according to the invention comprise a load circuit (M1) having a circuit input (M1.1), a supply circuit (M2) having a circuit input (M2.1), having two circuit outputs (M2.2), (M2.3) and at least one chargeable energy stor...
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WO/2021/121656A1 |
The invention relates to a method for operating an electric vehicle and electric vehicle, comprising an electrical drive device for the driving movement of the vehicle, a control device for controlling the driving movement of the vehicle...
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WO/2021/127385A1 |
A system for protecting at least one electrochemical cell, comprising circuitry configured to disconnect the at least one electrochemical cell at a first threshold current magnitude based on a first current flow direction through at leas...
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WO/2021/124952A1 |
[Problem] To prevent electric shock to a human body without using an insulating means such as a transformer in a power source device for vehicles that is mounted in a vehicle and achieves a low voltage power source from a high-voltage po...
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WO/2021/119938A1 |
A hybrid circuit breaker (100), a hybrid circuit breaker system, and a circuit breaker method. The hybrid circuit breaker (100) comprises: a first mechanical contact (MC1); a semiconductor circuit breaker (MSS), which is connected to the...
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WO/2021/126659A1 |
A system for charging multiple electric vehicles is provided. The system includes a first electrical converter that supplies DC power to a ring bus. The ring bus is separated into a plurality of DC buses by electrical breakers. Second co...
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WO/2021/115757A1 |
An electric system (100) has circuitry with a first branch (10) and a second branch (20) to supply electric current to a load (13) and to an integrated circuit (22), respectively. The integrated circuit (22) is configured to control oper...
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WO/2021/116399A1 |
A method of detecting a serial arc fault in a DC-power circuit (1) includes injecting an RF-signal with a narrow band-width into the DC- power circuit and measuring a response signal related to the injected RF-signal in the DC-power circ...
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WO/2021/114599A1 |
A passive semi-controlled hybrid direct current circuit breaker and a control method therefor. The passive semi-controlled hybrid direct current circuit breaker comprises: a quick mechanical switch K, a resonant module, an energy-consumi...
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WO/2021/110230A1 |
The invention relates to a system that eliminates the risk of electrical damage caused by irregular and abnormal currents in electrical grids, devices and, lastly, throughout a building, with automatic disconnection as well as electricit...
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WO/2021/112576A1 |
The present invention relates to a smart earth leakage circuit breaker which is installed on a distribution line through which an electric current flows, measures, by means of a CT, a leakage current flowing through the distribution line...
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WO/2021/112475A1 |
A device for measuring a current of a three-phase inverter according to an embodiment of the present invention comprises: a current detection element connected to the lower end of one of three lower switches configuring an inverter; a cu...
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WO/2021/113252A1 |
A method for performing a low energy pulse testing in a power distribution network that causes contacts to close and then open in about one fundamental frequency cycle of current flow time and close on a voltage waveform that produces sy...
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WO/2021/112870A1 |
Ground-fault circuit interrupter positioned between energy controlled supply circuit and load circuit which includes fault detection circuit that senses ground path current leakage to the load circuit, fault processing circuit that detec...
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WO/2021/112737A1 |
The present invention relates to a residual current circuit breaker, RCCB, (100) for an electrical circuit (300). The RCCB comprises a first switching device (106) and a second switching device (140) coupled in series with each other bet...
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WO/2021/112452A1 |
The voltage monitoring circuit according to one embodiment of the present invention comprises: a clamping unit for clamping the voltage of input power supplied from a power source to base voltage, and outputting to an MCU; and a switch u...
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WO/2021/111629A1 |
A correction information calculation device (1) comprising a unique code acquisition unit (40), an individual information acquisition unit (41), and a calculation unit (42). The unique code acquisition unit (40) acquires a plurality of u...
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WO/2021/110496A1 |
An apparatus (100) comprising: a first fuse (110) having a first breaking capacity, a first set of time-current characteristics, and a first rating; a second fuse (120) having a second breaking capacity, a second set of time-current char...
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WO/2021/103017A1 |
Provided is a method for limiting lightning-strike flashover of a DC electricity transmission line, comprising: detecting a first event, the first event being characterized as an event in which an electricity transmission line is struck ...
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WO/2021/104664A1 |
The invention relates to an installation comprising a stored energy source and an electric motor which can be fed by an inverter, and to a method for operating an installation, wherein the stored energy source forms an electrical series ...
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WO/2021/106285A1 |
In order to accurately perform failure diagnosis of this earth leakage detecting device, a first voltage output unit (11a, OP1) generates a periodic voltage which changes periodically, and applies the same to an other terminal of a coupl...
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WO/2021/106284A1 |
In order to quickly and accurately perform failure analysis on a coupling capacitor of an earth leakage detection device, a voltage output unit (11a, OP1) generates a periodical voltage that changes periodically and applies the voltage t...
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WO/2021/103068A1 |
Provided are a protective circuit and method for use thereof and a coronary artery analysis system; the protection circuit comprises an input circuit (100) and an output circuit (200); the output terminal of the input circuit (100) is co...
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WO/2021/098871A1 |
An electric leakage protection switch, comprising a shell, a circuit breaker control circuit (2), and a live-state control device (1). A live wire port (31), a neutral wire port (32), an earth wire port (33), the circuit breaker control ...
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WO/2021/098870A1 |
A household appliance, comprising a housing, a main control board (2), and a live control circuit (1). A live wire port (31), a zero wire port (32), the main control board (2), and the live control circuit (1) are provided in the housing...
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WO/2021/101884A1 |
In a network data center, systems and methods which reduce the number and duration of power interruption events resulting from over-current and short-circuit conditions are disclosed. The systems and methods shift loads between electrica...
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WO/2021/099413A1 |
The present specification provides a method and device for determining a disturbance condition in a power transmission line. The method includes obtaining (302) a plurality of sample values corresponding to an electrical parameter measur...
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WO/2021/099429A1 |
Overcurrent detector (1) with an electric line (2) and a sensor (3) for monitoring an electric current in the line (2) and outputting a measurement signal, and an integral-unit (4) adapted to integrate an interval of consecutive values o...
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WO/2021/098183A1 |
Disclosed are a circuit breaker identification method and apparatus, and a device, wherein same are applied to a power distribution system. The power distribution system comprises a back plate communication busbar and a circuit breaker, ...
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WO/2021/101869A1 |
Various embodiments disclosed herein provide techniques for detecting electrical arcing in an electrical system. A powerline communications (PLC) application executing on a network communications device acquires, via a PLC modem, first v...
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WO/2021/098326A1 |
The present invention relates to the field of terminal power distribution management systems of a communication device. Disclosed is an intelligent terminal power distribution system. Currently, a general circuit breaker usually does not...
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WO/2021/097251A1 |
A temporary power delivery system includes a power source, a booth stringer, and a portable GFCI device. The GFCI device is receives current from the power source by a first terminal and delivers current to the booth stringer by a second...
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WO/2021/093430A1 |
The present application provides a contactor control device and a power supply system, used for protecting a loop when a control unit fails. The control device comprises an electric signal detection unit, the control unit, a contactor, a...
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WO/2021/095602A1 |
According to the present invention, first and second output transistors (MPOUT, MNOUT) are connected in series between a power supply terminal (101) and a ground terminal (102) via an output node (No) connected to an output terminal (103...
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WO/2021/090370A1 |
This power conversion device is provided with a power conversion circuit constructed so as to convert DC power to three-phase AC power, and a control device constructed so as to generate two-phase reverse phase current from the three-pha...
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WO/2021/084585A1 |
This DC circuit breaker (1) cuts off DC current flowing in a DC line (2). The DC circuit breaker (1) is provided with: a fault current breaker unit (3), which is a first breaker unit, and a load current breaker unit (4), which is a secon...
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WO/2021/084073A1 |
An adaptive strategy is developed to optimize a current threshold that is taken as a reference to initiate a mitigation process, applying a self-adjustment throughout the lifetime of an electronic device (407) to protect against SEL phen...
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WO/2021/086105A1 |
An electronic device for preventing a burnout caused by overcurrent and a method therefor are provided. The electronic device comprises: a power amplifier configured to amplify a transmitted signal; a battery configured to provide a bias...
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WO/2021/076323A1 |
Disclosed herein are systems for maintaining protection of electric power delivery systems in the event of a control power failure or other anomaly. A reliable power module conditions electric power from multiple independent sources and ...
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WO/2021/074812A1 |
A high-voltage overhead electric transmission line (1) is described, which extends from a first electrical substation (3) to a second electrical substation (5), and comprises at least one "T" junction (7) which forms a joint (9) with thr...
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WO/2021/074333A1 |
The invention relates to a method for determining the resistive component of the leakage current impedance (Riso) of a downstream branch (2) to an alternating current network having a live phase (L), a neutral conductor (N) and a protect...
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