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WO/2023/174703A1 |
The invention relates to a method for protecting against fault arcs in a hierarchically structured electric distribution network (100) in which electric power from a feed point (4) is distributed via a common superordinate main distribut...
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WO/2023/174706A1 |
The invention relates to a method for protecting against fault arcs in an electric power distribution system (100) in which electric power from an electric feed point (4) is distributed via a common superordinate main distribution line (...
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WO/2023/172487A1 |
A system and method for estimating fault current using a sliding observation window that is shorter than one cycle. The method may also include providing a pickup level that defines a current threshold for opening a switch in response to...
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WO/2023/171848A1 |
The present invention relates to an earth leakage breaker with a built-in trip modular circuit breaker, wherein the earth leakage breaker is installed between a power supply and a load line and includes a trip module for breaking the lin...
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WO/2023/168026A1 |
Apparatuses, systems, and methods are described for providing event indication. The system includes a protection device, an event indicator associated with the protection device, including a housing having an opening; a translation membe...
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WO/2023/165047A1 |
Provided are an overcurrent protection apparatus and protection method for a T-type three-level inverter, the overcurrent protection apparatus comprising a T-type three-level inverter circuit, an overcurrent protection circuit and a swit...
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WO/2023/167886A1 |
An arrester assembly including a first support member and a constant tension spring including a first end and a second end. The first end is mechanically coupled to the first support member such that the second end of the constant tensio...
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WO/2023/166874A1 |
An overcurrent protection circuit 34, for example, comprises: an overcurrent detection unit 341 configured to compare monitoring target current IOUT and an overcurrent detection threshold value IOCD; a current interruption unit 342 confi...
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WO/2023/167620A1 |
A bus bar current interruption device (1) comprising a casing (2), providing an enclosure (3), and a bus bar arrangement (4). The bus bar arrangement (4) is arranged to extend through the enclosure (3) and comprises a first terminal end ...
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WO/2023/166263A1 |
The invention relates to a system (2) for protecting an electrical network (1) comprising a plurality of digital protective relays (18) which are each arranged on a power supply line (6) of the network, respectively, each relay (18) comp...
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WO/2023/167211A1 |
Provided is a vehicle power supply device capable of implementing inexpensive and reliable electric shock preventative measures. A vehicle power supply device 1 is provided with: a first power storage element group 2 in which multiple ...
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WO/2023/162554A1 |
This current breaker comprises: a first measurement unit that measures a current flowing through a current path; a second measurement unit that includes an air core coil wound around the current path and measures a differential value of ...
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WO/2023/160202A1 |
Provided in the present application are a sensor microphone output protection circuit and a sensor microphone. The sensor microphone comprises an amplification output circuit, a power supply end and an audio output end, wherein the ampli...
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WO/2023/161951A1 |
The present invention relates to a protected distribution board (PDB) integrated with low voltage load power distribution system in buildings with four levels of over current protection and three levels of ground fault protection for con...
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WO/2023/160968A1 |
The invention relates to a method for operating a circuit breaker (100) which couples a load circuit (200) to be protected to a supply circuit (300). The circuit breaker (100) has a mechanical switch element (110) and an electronic switc...
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WO/2023/159279A1 |
An electrical testing device comprising a first conductor, a second conductor, an active conductor, a neutral conductor, an earth conductor and one or more connectors to connect the active conductor, the neutral conductor and the earth c...
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WO/2023/160965A1 |
The invention relates to a method for operating a circuit breaker (100) which protects an electric circuit (200). The circuit breaker (100) has a mechanical switch element (110) and an electronic switch element (120) connected in series ...
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WO/2023/161622A1 |
A multi-phase electrical machine (100) for use in an aircraft (1), the electrical machine comprising: a stator (110) comprising a plurality of electrical phases, each electrical phase comprising phase windings, the phase windings in each...
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WO/2023/156829A1 |
A method for protecting a low-voltage distribution network. The low-voltage distribution network includes a low-voltage side of a three-phase distribution transformer that is configured to supply electrical power to at least one single-p...
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WO/2023/158198A1 |
The present invention relates to an energy optimization power saving apparatus using return luminous energy of infrared synthetic wavelength equipped with an overload protection apparatus and provides an energy optimization power saving ...
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WO/2023/155416A1 |
Provided is a blocking-type surge protector for accelerated turn-off, comprising: a first transistor (M1), a drain electrode thereof connected to a first port; a second transistor (M2), a drain electrode thereof connected to a source ele...
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WO/2023/152428A1 |
The invention relates to a monitoring method implemented in a vehicle comprising a rechargeable main battery and coupled to a charging connector able to be temporarily coupled to a power source to receive a charging current having an ind...
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WO/2023/152424A1 |
Disclosed is a method of measuring current for fault detection in a distribution grid (410). The method comprises: using three current transformers, wherein three current transformers are connected to one another; installing three connec...
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WO/2023/151872A1 |
For a hybrid circuit breaker (1), comprising a mechanical bypass switch (8) and a voltage source arrangement (9) disposed in an outer conductor path (2), a first semiconductor circuit arrangement (11) connected parallel to the mechanical...
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WO/2023/150385A1 |
A circuit interrupting device including a line terminal, a wideband current sensor configured to measure a current flowing through the line terminal, a zero cross detection circuit configured to measure a voltage and frequency of the lin...
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WO/2023/149710A1 |
The present invention relates to a display device and a control method therefor. The display device comprises: a display; a first communication interface unit; a second communication interface unit; a power supply unit; and a control uni...
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WO/2023/145511A1 |
A DC circuit breaker 25a comprises: a parallel connection part between a mechanical switch 40 and a semiconductor switch 44; and a switch control unit 39 which is connected in series to one side of the parallel connection part. The switc...
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WO/2023/142371A1 |
Provided in the present disclosure is a hot-swap application circuit, comprising a hot-swap detection and power supply unit, a power supply switch transistor, a switch circuit, a voltage stabilizing capacitor bank and a load device. A se...
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WO/2023/142703A1 |
An overvoltage protection circuit and apparatus, and a display panel (30) and a display. The overvoltage protection circuit comprises: an overvoltage detection circuit (10) and an overvoltage counting circuit (20), wherein the overvoltag...
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WO/2023/143846A1 |
The invention relates to a control circuit for an active rotational speed sensor (10) of a vehicle. The active rotational speed sensor (10) is designed to detect the rotational speed of a wheel and to output a sensor signal on that basis...
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WO/2023/145465A1 |
An in-vehicle power supply system (100) comprises a storage battery (10) and a voltage conversion module (40). When a charger (50) and the storage battery are connected to each other via the voltage conversion module, the charging voltag...
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WO/2023/144002A1 |
A monitored DC voltage charging method for charging an in-vehicle traction battery (B1, B2) via an in-vehicle charging circuit using a vehicle-external charging voltage source (SQ) is described. The traction battery (B1, B2) has a rated ...
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WO/2023/139173A1 |
The invention relates to an electronic circuit arrangement for current limitation in a load circuit, having a power semiconductor (M1) located between a supply voltage and a load, the control input of which power semiconductor is connect...
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WO/2023/138880A1 |
The invention relates to a monitoring device (1) for an electrical grid, in particular for an IT electrical grid, preferably for an IT direct current electrical grid, comprising an earthing line (2), which runs from a tapping end (3), at...
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WO/2023/134970A1 |
The invention relates to a high-voltage supply for drive motors of an electric vehicle, comprising a distribution box which receives high-voltage components and which comprises high-voltage connections (72.1 - 72.4) arranged thereon, sai...
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WO/2023/137324A1 |
A system for an electromechanical transfer or disconnect switch wherein the system can comprise one or more contacts, a mechanical lever, and an actuator. The mechanical lever can comprise a first end, which can comprise a pivot and one ...
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WO/2023/135224A1 |
A voltage limiting device (15) for constant current circuits (10) comprises input terminals (153) for connecting the voltage limiting device to a current supply (11) of a constant current circuit, output terminals (154) for connecting th...
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WO/2023/133041A1 |
Electrical connectors with integral fault detection are provided. The connectors are adapted to be coupled to AC multi-phase electrical cables, and can include a plurality of phase contacts, a detector, and an indicator. The phase contac...
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WO/2023/133578A1 |
An over-voltage protection system is provided for use with electrical equipment. The system includes a protection circuit having a first bus (141) for receiving electrical power, a second bus (142) for providing power to the equipment (2...
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WO/2023/123677A1 |
Provided are a control method and device of a power type energy storage apparatus and a regional power system. The power type energy storage apparatus is connected to an incoming line end of a second transformer by means of a first trans...
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WO/2023/123640A1 |
Disclosed in the present invention is a convenient and fast treatment method for an inter-phase short circuit of a three-phase electric power system. The method comprises: firstly, cutting off a fault current; then, constructing a detect...
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WO/2023/128838A1 |
The invention is a surge protector comprising a housing and discharge modules. The discharge modules comprise insulating bodies and a plurality of electrodes arranged in said insulating bodies with the formation of discharge gaps between...
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WO/2023/128737A1 |
A junction temperature estimating device according to a first embodiment of the present invention comprises: a power loss calculation unit for calculating a power loss by receiving a voltage and a current of a switching element as inputs...
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WO/2023/117711A1 |
The invention relates to a disconnection module (30) for an electronic control unit (20) of a motor vehicle (1), said electronic control unit (20) comprising a disconnection module (30) configured to be electrically connected to at least...
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WO/2023/118726A1 |
The invention relates to a method for protecting an electrical network, comprising the steps of: - monitoring at least one electrical quantity of the network; - triggering actions on physical protections included in the network according...
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WO/2023/122421A1 |
A method of monitoring a fuse of a work machine includes sensing a fuse current; detecting when the fuse current exceeds a threshold; quantifying a difference current that is a difference between the fuse current and the threshold curren...
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WO/2023/116991A1 |
The invention relates to a method for checking the switch-off capability of an electronic breaker (3), which is in the form of a MOSFET and which is used as a circuit breaker between a voltage supply and a control unit, in which the MOSF...
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WO/2023/120909A1 |
The present invention relates to a solid state circuit breaker, comprising: a semiconductor switch unit including a semiconductor switch that electrically connects or disconnects a power system and a load according to a voltage applied t...
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WO/2023/122065A1 |
A method and system are provided to control circuit breaker operations. In the method and system, near-field RF signal is monitored at or around electrical contacts of the circuit breaker using at least one near-field radio frequency (RF...
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WO/2023/112352A1 |
The protection control terminal according to the present embodiment is connected to a process bus and has an output unit, a communication unit, and a calculation unit. The output unit is connected to one circuit breaker within a power sy...
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