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WO/2023/097103A1 |
A direct current (DC) hybrid circuit breaker (HCB) includes a current sensor and a variable inductor. In the event of a short circuit fault current reaches a preset threshold, the current sensor will send a tripping signal to a controlle...
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WO/2023/088673A1 |
The invention relates to a method for locating an arc (LB) in a switchgear apparatus (10), wherein – the switchgear apparatus (10) is subdivided into two or more detection zones (Z1, Z2, Z3, Z4), - each detection zone (Z1, Z2, Z3, Z4) ...
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WO/2023/083496A2 |
A circuit interrupter includes separable contacts; an operating mechanism; an electronic trip unit; and a current sensor assembly including: a harvester circuit having a primary conductor through which input current passes, a secondary w...
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WO/2023/080493A1 |
The present invention relates to the development of a full electronic overcurrent breaker of which, by using a Kim-line current sensor which is not saturated at a high current (Korean patent No. 10-1981640), an overcurrent tripping time ...
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WO/2023/080820A1 |
The present disclosure relates to a sensor device (30) for detection of electrical abnormalities in association with electrical equipment, the sensor device (30) comprising: a housing (32); and an acoustic sensor element (301) arranged i...
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WO/2023/069307A1 |
A circuit breaker trip device includes a circuit interface configured to interface with a receptacle for providing electrical power; a trip mechanism, operatively connected to the circuit interface, configured to overload a circuit break...
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WO/2023/066277A1 |
A critical arc light phase locking determination method. The method is characterized in that same comprises the following steps: step 1, performing real-time monitoring, and collecting an arc light irradiation intensity in a switch cabin...
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WO/2023/068750A1 |
Disclosed is a wireless power transmitting apparatus. The wireless power transmitting apparatus comprises: a receiver receiving power from the outside; a resonator that converts the power received by the receiver into wireless power, and...
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WO/2023/063833A1 |
An underground enclosure for a wire termination includes a first enclosure defining an arc-initiation-protected-zone and a second enclosure defining an IP-4X rated zone. The first enclosure is stored within the second enclosure below gro...
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WO/2023/052540A1 |
A computer-implemented method for calculation of an estimated location of a ground fault short circuit in a railway network power supply arrangement, wherein an electricity substation (40) supplies a number of respective conductors (14) ...
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WO/2023/055823A1 |
A device (102) includes a protected terminal (VDD), a reference terminal (GND), and a rate- triggered circuit (404) coupled to the protected terminal and to the reference terminal. The rate- triggered circuit is configured to provide an ...
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WO/2023/046076A1 |
Some embodiments of the present disclosure provide an air conditioner, comprising a power supply circuit, a first sampling circuit, and a controller. The controller is connected to the power supply circuit and the first sampling circuit,...
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WO/2023/036466A1 |
A precharge device (1) for DC loads is disclosed, which comprises a switching element (SW, SW1, SW2), a magnetic core (MC..MC'') with negatively coupled coils (L1, L2) being switchably connected by the switching element (SW, SW1, SW2). M...
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WO/2023/027986A1 |
An optimized protection system for a power system consisting of power lines, transformers, generation units, and loads is provided. The optimized protection system includes grid-protection units (GPUs) each including at least one grid-pr...
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WO/2023/028300A2 |
A system includes a number of sensor units and a local controls station. The sensor units include one or more conductor sensors configured to monitor one or more parameters of a conductor in a power distribution system. The local control...
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WO/2023/015779A1 |
Disclosed is a high-reliability protection circuit and a power supply system. The high-reliability protection circuit comprises: a load overcurrent voltage monitoring module, which detects a load power supply voltage of a load and determ...
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WO/2023/018953A1 |
An arc fault detection system senses current flow in a power source branch and in one or more load branches in an electrical system. Over a frequency range divided into a predetermined number of frequency bins, a controller records and t...
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WO/2023/011701A1 |
The disclosure provides a circuit breaker for controlling a power supply to electrical appliances connected to a power line. The circuit breaker comprises: a signal acquisition module configured to acquire an electrical power signal indi...
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WO/2023/011974A1 |
Disclosed is a method for controlling the operation of an electric machine (1) of a motor vehicle, involving the steps of: - acquiring an error condition; - switching the electric machine (1) into one of at least two error modes of opera...
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WO/2023/006808A1 |
A method for protecting an electrical load (L) that is able to be connected to an electrical energy source (B) via a switch (S), in the event of a short circuit of the load (L), comprises: connecting the load (L) to the electrical energy...
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WO/2023/272751A1 |
A power source output protection method and circuit. A current measurement resistor (300) is arranged on a power source output loop; a first input end and a second input end of a control chip are respectively connected to two ends of a c...
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WO/2023/274503A1 |
The invention relates to a method for locating an arc (A) in low-voltage switchgear (20), comprising the following steps: - capturing arrival times (t1, t2, t3) at which an acoustic signal (10S) generated by the arc (A) arrives at each o...
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WO/2023/273404A1 |
The present application relates to a chip-level software/hardware co-operative relay protection apparatus. The apparatus comprises: a control chip, wherein a first control unit, a second control unit, and multiple logic circuits are inte...
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WO/2023/273405A1 |
The present application relates to a chip-level relay protection apparatus and system. The apparatus comprises a control chip, and the control chip comprises a master controller and a nanometer relay array. The nanometer relay array comp...
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WO/2023/274505A1 |
The invention relates to a short-circuiter and to a method for quenching a fault arc using a short-circuiter. The short-circuiter (30) is used to quench a fault arc (2) in a switchgear. The short-circuiter (30) has at least one power ele...
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WO/2023/274504A1 |
The invention relates to a method for locating an arc (A) in a low-voltage switchgear (20), including the following steps: - detecting a time of arrival (tEM,i) at which an electromagnetic radiation signal (10EM) generated by the arc (A)...
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WO/2023/274615A1 |
A testing arrangement is provided for an arc detecting system that comprises at least one optical detector (42) at a piece of electric equipment, where the testing arrangement comprises at least one light source (74) and a testing unit (...
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WO/2022/245375A1 |
An electric system (100) includes a plurality of electric devices (110), each electric device (110) having a cabinet (112), a common power source (130), each electric device (110) being electrically coupled to the common power source (13...
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WO/2022/243401A1 |
The present invention provides a transmission apparatus and method for protection signaling of a power system, the power system including a plurahty of power stations that are connected to each other over a WAN, where each power station ...
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WO/2022/243673A1 |
Disclosed herein is a fuse apparatus for connecting a local power distribution circuit to a mains power grid to provide electrical power to the local power distribution circuit from the mains power grid. The fuse apparatus comprises a cu...
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WO/2022/238322A1 |
The present invention relates to an arc mitigation apparatus for a low-, medium-, or high- voltage switchgear, the arc mitigation apparatus comprising: - an arc mitigation device (10); and - a solar-cell (40). The arc mitigation device i...
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WO/2022/239932A1 |
According to various embodiments, an electronic device may comprise: an input terminal configured to receive alternating current power from an external source; an output terminal configured to output the alternating current power; an SSR...
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WO/2022/227817A1 |
Disclosed in the present invention is a fault monitoring method for a multi-port internal passive load-free probabilistic load flow electric network. The method comprises: providing a current transformer on a wire; converting a current a...
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WO/2022/223759A1 |
Techniques for distance protection of a transmission line (11) include determining a fault inception time from a voltage and/or current, determining rate of change sample values indicative of a rate of change of the voltage and/or of a r...
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WO/2022/223089A2 |
PROBLEM SOLVED BY THE INVENTION: The invention makes it possible to carry out high-quality control of loads with PTC with minimal economic costs over the entire operating temperature range, using, together with the load, automatic protec...
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WO/2022/211605A1 |
The present invention comprises: a semiconductor switch unit including a first semiconductor switch having a drain terminal connected to a power grid, a second semiconductor switch having a drain terminal connected to a load, and first a...
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WO/2022/203257A1 |
Embodiments of the present specification relate to a circuit breaker control device, a circuit breaker, and a circuit breaker test system, in which: communication is performed with a test device in a data communication manner so as to re...
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WO/2022/194680A1 |
The invention relates to a system comprising a feed-in device and a plurality of field devices electrically connected to the feed-in device. The feed-in device is designed to provide electrical energy for an electrical energy supply to t...
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WO/2022/184708A1 |
A method for fault protection of a terminal box of an electric rotating machine, and an arrangement comprising a terminal box (100) for an electric rotating machine (200) for electrically connecting the electric rotating machine to an el...
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WO/2022/185094A1 |
The present invention discloses a method for recommending an intelligent electronic device (lED) from a plurality of lEDs connected in a communication network of a substation with a computing system. The computing system is communicative...
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WO/2022/179111A1 |
Disclosed are a method and apparatus for processing transmission data of a line-protection fiber channel, the method comprising: acquiring a numerical value of a data frame format in a communication message sent by an opposite side; when...
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WO/2022/177662A1 |
A charging system for charging a battery includes a rectifier that rectifies power received from an AC power source into a DC signal for charging the battery and an arc detection circuit that measures noise added to the DC signal and gen...
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WO/2022/171865A1 |
A self-triggering, bidirectional control electronics component for an electronic switch (50), for the detection and rapid shutdown of currents at a selected threshold value for both current flow directions, includes a threshold switch ha...
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WO/2022/167116A1 |
The invention relates to a system comprising a feed-in device (400) and a plurality of field devices (100) electrically connected to the feed-in device. The feed-in device (400) is designed to provide electrical energy for an electrical ...
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WO/2022/167493A1 |
The invention relates to a line assembly for a DC voltage onboard electrical system of a motor vehicle, comprising: - a power source (11), - at least one load (L); - a supply line (5) which has a shielding (3) and an inner conductor (1) ...
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WO/2022/164663A1 |
A circuit breaker with arc fault detection by accumulation of machine learning classifications is provided. The circuit breaker comprises a microcontroller including a processor, a memory and computer-readable software code which, when e...
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WO/2022/106311A9 |
In the field of High Voltage Direct Current (HVDC) power transmission networks, there is a need for an improved protection circuit to protecting a whole or part of such a network. A protection circuit (10; 100), for protecting a whole or...
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WO/2022/158989A1 |
A method of detecting a high-voltage power line fault in a three-phase power supply system, comprising acquiring voltage data from the low-voltage side of a three-phase distribution transformer; processing the voltage data to determine a...
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WO/2022/148074A1 |
A method for solving for converter valve states and valve currents based on valve-side current timing characteristics. The process is as follows: acquiring valve-side three-phase alternating currents, direct currents, and converter valve...
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WO/2022/136414A1 |
The invention relates to a method for protecting an electrical low-voltage circuit for a protective switching device, in which method: a mechanical break contact unit (MK) is connected in series with an electronic interrupter (EU). The m...
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