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Matches 1 - 50 out of 34,836

Document Document Title
WO/2021/052949A3
The application relates to a method for detecting a short circuit (33) of a DC load (30), which can be connected to an AC network (20) via a rectifier (1) comprising an AC/DC converter (10). The method comprises the following steps: - se...  
WO/2021/090845A1
This power supply circuit for a work machine is provided with a first switch for switching connection and disconnection of a first electrical path provided between a battery and a load which is driven with the power of the battery, and a...  
WO/2021/090948A1
The present invention provides a protection circuit which is capable of improving the safety by reliably preventing overcurrents and sneak currents after shut-off, which enables cost reductions via device configurations that are simpler ...  
WO/2021/090947A1
Provided is a protection circuit that can reliably prevent overcurrent or sneak current after interruption and improve safety, that can realize a cost reduction with a device structure that is simpler than conventional device structures,...  
WO/2021/084873A1
The battery monitoring device (10) monitors a battery unit (3) equipped with a plurality of battery portions (3A). The battery monitoring device (10) has: a flexible board (20) equipped with a signal line (28) for transmitting a signal b...  
WO/2021/083656A1
A system for monitoring the state of a cable (C), comprising a plurality of reflectometry devices (M1,M2,M3,... Mn-1,Mn) capable of injecting a test signal at an injection point of the cable and measuring a signal back-propagated in the ...  
WO/2021/084573A1
An embodiment of the present invention is a voltage supply device characterized by having: a controller that outputs, from a power supply circuit to an external device, a signal indicating one bus voltage that is negotiated and determine...  
WO/2021/083655A1
A system for monitoring the state of a cable (C), comprising a plurality of transferometry devices (M1, M2, M3, ... Mn-1, Mn) capable of injecting a test signal into the cable and measuring a signal propagating in the cable, the transfer...  
WO/2021/085118A1
In this drive device, a first connection circuit (A), a second connection circuit (B), and a third connection circuit (C1) are separately connected between an input end (20a) and an output end (20b). A first motor (11) is connected betwe...  
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...  
WO/2021/087003A1
A method and apparatus for tertiary control with over-current protection. In one embodiment, the method comprises calculating at least one unconstrained optimal net intertie target for an area of a power network; calculating, for each re...  
WO/2021/053635A3
A smart sheath for the protection of an electric cable comprises an inner insulating tubular layer (3) adapted to contain the conductive elements (4) of the electric cable (1), an outer tubular protective layer (5) placed on the inner tu...  
WO/2021/080443A1
The invention relates to a superconducting electrical switch. The switch comprises two parallel branches of superconducting material in a loop, and a magnetic field generator which generates a time-varying magnetic field through the loop...  
WO/2021/077685A1
Disclosed is a DC-AC correction wave inverter having an output short circuit protection circuit. The DC-AC correction wave inverter comprises: a boosting unit, wherein the boosting unit is used for converting an input voltage; a rectific...  
WO/2021/080973A1
The present system and method allow for the detection and diagnosis of abrupt changes of a device operating condition using a sensor array disposed in the coolant where the device is located. The purpose of the sensor array is to identif...  
WO/2021/072913A1
A line protection traveling wave distance measurement method and apparatus. The method comprises: performing fault detection according to collected power frequency data and traveling wave data, and determining whether to perform protecti...  
WO/2021/073219A1
The present invention relates to a method and system for protecting a GIL-overhead hybrid line, the GIL-overhead hybrid line consisting of a GIL line segment and overhead line segments disposed at two ends of the GIL line segment. Two si...  
WO/2021/072884A1
Disclosed in the present invention are a bidirectional charging and discharging power line and a bidirectional charging and discharging circuit. The power line comprises: a first interface, a second interface, several transmission lines ...  
WO/2021/073663A2
Disclosed in the present invention are a pin multiplexing-based temperature protection method and a circuit. The method comprises: by means of a temperature system temperature measurement sub-circuit, measuring a real-time drive output c...  
WO/2021/070468A1
This general-purpose battery outer shape type wireless charging battery is provided with: a secondary battery; a wireless charging circuit which is connected to the secondary battery; exterior members (21, 22) which have outer shapes sim...  
WO/2021/069315A1
Disclosed is a motor protection device (1). The motor protection device (1) includes an interrupter unit (11, Q1, Q2) for electrically connecting a power supply (Vcc) and an electric motor (M) in an operation mode and electrically discon...  
WO/2021/063288A1
Embodiments of the present invention relate to the field of automotive technology and provide a battery that has application in automotive diagnostic tablets. The battery comprises a battery cell, a positive electrode interface, a negati...  
WO/2021/062464A1
A system for monitoring a multiple earth neutral (MEN) link enables the improved safety of electrical switchboards installed in buildings and other locations. The system comprises a switchboard connected to a mains power supply via an ac...  
WO/2021/063290A1
The present invention embodiments relate to the field of automotive technology. Disclosed is a battery that has application in automotive diagnostic tablets. The battery comprises a battery cell, a positive electrode interface and a nega...  
WO/2021/058088A1
The present invention relates to an instrument transformer (1) for high current and/or high voltage conversion and a method for fluid-level measurements within the instrument transformer (1), comprising a housing and at least an active p...  
WO/2021/056896A1
Provided in the present invention are a direct current microgrid branch linkage control system and method. The direct current microgrid branch linkage control system comprises: a detection unit, which detects in real time the voltage and...  
WO/2021/058197A1
The invention relates to an electronic circuit breaker (1), comprising two identical semiconductor switches (2), each having a switch element (21) and a diode (22) arranged antiparallel in relation to the switch element (21). In order to...  
WO/2021/059949A1
A cell selecting circuit (11) is provided between n (where n is an integer at least equal to 2) cells (C1 to C4) that are connected in series, and an inductor (L1), and is capable of providing conduction between both ends of a selected c...  
WO/2021/058089A1
The present invention relates to an instrument transformer (1) and a method for high current and/or high voltage conversion, comprising a housing, at least an active part, and at least a sensor (13) on a high voltage side of the instrume...  
WO/2021/058413A1
A method for protecting at least part of a network segment of an electrical energy distribution network comprises the following steps: voltage dips in the intermediate feeding devices of the power line assemblies are detected by means of...  
WO/2021/052731A1
The invention regards a cell for use in a Modular Multi-Level Converter, the cell comprising a half bridge or full bridge, which includes at least two transistors and an energy storage unit, the transistors being mounted to a heatsink an...  
WO/2021/055227A1
A control system and method for sectionalizing switches and a source interrupter/recloser in a feeder, or portion of the distribution grid, which enables fault location, isolation and service restoration without requiring a communication...  
WO/2021/055203A1
Techniques for avoiding false negative sense (NSN) detection in a flyback AC-DC converter are described herein. In an example embodiment, a secondary side controller of the AC-DC converter comprises a frequency detector, a negative sense...  
WO/2021/055858A1
An electrical transformer system includes an electrical transformer and a depressurization system in fluid communication with an outlet of the electrical transformer. The depressurization system may include a rupture disk having a domed ...  
WO/2021/053162A1
Disclosed is a method for managing overcurrent protection in a self-controlled synchronous machine with permanent magnets of a motor vehicle. The method makes it possible to adjust the activation threshold for the overcurrent protection ...  
WO/2021/052515A1
A photovoltaic assembly and a preparation method therefor. In each cell unit group (100) in the photovoltaic assembly, a first connection point (O) of two serially connected first cell strings (101) is electrically connected to a second ...  
WO/2021/052300A1
A high-voltage hybrid line fault section discrimination method using a ratio restraint differential principle. The method comprises: when a fault occurs in a hybrid line, tripping circuit breakers at two sides of the line by a protection...  
WO/2021/052949A2
The application relates to a method for detecting a short circuit (33) of a DC load (30), which can be connected to an AC network (20) via a rectifier (1) comprising an AC/DC converter (10). The method comprises the following steps: - se...  
WO/2021/055226A1
A control system and method for sectionalizing switches and pulse-testing interrupter/reclosers in a distribution grid feeder which enables fault location, isolation and service restoration without requiring an external communications in...  
WO/2021/053635A2
A smart sheath for the protection of an electric cable comprises an inner insulating tubular layer (3) adapted to contain the conductive elements (4) of the electric cable (1), an outer tubular protective layer (5) placed on the inner tu...  
WO/2021/047343A1
Provided are a method and device for protecting a DC line of a DC electrical power distribution grid, comprising: according to an electric current and voltage on the present side of a circuit, determining whether a line protection start ...  
WO/2021/047568A1
Disclosed is a method for restraining a tail current and preventing malfunction protection maloperation. A fault current is processed by means of a differential filtering algorithm to acquire first current data; the fault current is proc...  
WO/2021/048721A1
According to one or more embodiments, a current limiting device is provided. The current limiting device includes a transformer including: a primary winding configured to accept an input current, a core electromagnetically coupled to the...  
WO/2021/049174A1
An energization control device according to the present invention comprises: SW1 and SW2, which are connected to an inter-system bus; SW3 and SW4, which are connected to a sub-system bus; an SW control circuit (40) that controls the oper...  
WO/2021/009025A9
The invention relates to a method for detecting a short-circuited line in an electrical direct-voltage conductor network, comprising the following steps: • per conductor branch at a conductor node: ◦ determining a first current value...  
WO/2021/045669A1
An electronic circuit breaker (100) with self-triggering protection for a vehicle, comprising: an input (101) configured to be connected to an electric DC power supply; an output (102) configured to be connected to a load; the input is c...  
WO/2021/045351A1
The present invention provides an arc eliminator, comprising: a plurality of housings formed of an insulation material; fixed electrodes disposed on the upper sides of the insides of the housings and connected to each of high-voltage thr...  
WO/2021/045668A1
A battery junction box (100), comprising: a first input (101) connected to a first output (102) via a switch circuit (103), which switch circuit is configured to connect the first input to the first output upon receiving a control signal...  
WO/2021/045486A1
The present disclosure relates to an electronic device having an over-current protection function. An electronic device according to one embodiment comprises at least one power converting device and the at least one power converting devi...  
WO/2021/045670A1
An electronic circuit breaker (100) for a vehicle, comprising: an input (101) configured to be connected to a DC power supply; an output (102) configured to be connected to a load; said input connected to said output via a semiconductor ...  

Matches 1 - 50 out of 34,836