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WO/2018/122632A1 |
The present invention relates to a method for detecting CT saturation during inrush. The method comprising, computing an estimated sampled value of a current signal from a CT at a first time instance using sampled values of the current s...
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WO/2018/126020A1 |
A circuit breaker system is disclosed in the present application. The circuit breaker system includes a housing to hold an electrical interrupter within an internal region separated from an external ambient region. The electrical interru...
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WO/2018/109161A1 |
The invention relates to an overcurrent and/or short circuit detector (1), particularly for a safety switching device (2), having at least one current sensor (3) for picking up a current signal with a definable time resolution in at leas...
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WO/2018/108876A1 |
In a protection arrangement (1) for protecting a transformer (2), an AC source (6) and/or AC sink (6), comprising a transformer (2), of which one winding (3) is connected to an AC source (6) or to an AC sink via a first and a second line...
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WO/2018/104181A1 |
The invention relates to an electrical installation (1a, 1b), comprising a switchgear cabinet (2, 2a, 2b) and a protective switch (3) arranged in the switchgear cabinet (2, 2a, 2b). The electrical installation (1a, 1b) also has an optica...
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WO/2018/099902A1 |
A system for protecting an electrical circuit comprises an electrical protection switching module comprising: neutral and live input terminals for electrical connection to a supply of the circuit, a neutral output terminal for electrical...
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WO/2018/102100A1 |
Methods include sensing phase currents (100) through a circuit interruption device (110), generating at least one symmetrical component harmonic current signal (220) for at least one harmonic of the phase currents responsive to the sense...
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WO/2018/091830A1 |
The subject matter of the present invention is a device for protecting an electronic computer (2) against a short circuit, the electronic computer (20), a sensor (40) comprising a first sensor pin (40_1), and a shunt resistor (100), char...
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WO/2018/080516A1 |
A current monitor circuit includes a sense resistor coupled to a direct current (DC) power supply to sense a current signal, an operational amplifier (op-amp) coupled to the sense resistor to sense a voltage developed across the sense re...
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WO/2018/075789A1 |
An instrumented electric power arrester includes a temperature sensor, wireless transmitter, and a visual over-temperature indicator. A disk shaped module, a replacement varister block, or a dummy block containing the sensor/transmitter ...
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WO/2018/069009A1 |
The invention relates to a device (10) for detecting an arcing fault in an electric power supply circuit (20). To this end, a voltage fed at the input end is compared with a voltage available at the output end in the electric power suppl...
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WO/2018/065568A1 |
A sensor arrangement for an optical arc flash detection system, the arrangement comprising a body part (10), a connector part (20) releasably connected to the body part and adapted to connect to at least two optical fibres, a lens part (...
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WO/2018/054675A1 |
The invention relates to a DC overvoltage protection device (10) for an energy storage system, an energy storage system (200, 205) having such a DC overvoltage protection device, a method for operating a DC overvoltage protection device ...
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WO/2018/054673A1 |
The invention relates to a DC overvoltage protection device for an energy storage system and/or energy generating system, an energy storage system and/or energy generating system comprising said type of DC overvoltage protection device, ...
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WO/2018/050360A1 |
The present invention relates to a method for operating a security device, comprising a housing with at least one current-carrying element, wherein the current-carrying element is arranged in the housing interior and is enclosed by the h...
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WO/2018/046435A1 |
According to an embodiment a device (100) for protecting an electrical circuit having at least two contacts (102, 105) connected by an interrupting module (104) and a diplexer (101) is disclosed. The diplexer (101) splits a low frequency...
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WO/2018/041474A1 |
The invention relates to an overvoltage protection device with monitoring and communication functions, in particular for the information and process industries, having at least one surge arrester with a self-diagnostics unit and a wirele...
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WO/2018/037262A1 |
In aspects, the present invention provides a method for phase controlled energizing of a power transformer (130). The method comprises acquiring electrical voltage signal from a voltage sensing device (160, 170) connected to the power tr...
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WO/2018/005664A1 |
An antenna unit for monitoring the RF transmission line and RF signal path to an antenna unit used in a distributed antenna system. The antenna has a resistor connected to ground, and a DC injector including a capacitor having a first si...
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WO/2018/001515A1 |
A multilevel converter for converting between AC and DC comprises a cell (HBA), which comprises an energy storage element (C), a first branch of series-connected switching units(S1, S2) in parallel with the energy storage element, each s...
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WO/2017/209703A1 |
The invention is electricity monitoring, cutting and sending faults device which collects digital data and communicates via IP Network. There are copper, fiber optic, and wireless networks and/or any other similar communication systems w...
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WO/2017/208197A1 |
The invention relates to a method and a device for detecting faults in transmission and distribution systems. The method is characterised by the following steps: a. rectifying the AC current signal from the three-phase "auxiliary service...
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WO/2017/207031A1 |
The invention relates to an arcing fault recognition unit for an electric low-voltage circuit, comprising at least one current sensor for periodically ascertaining electric current values in the electric circuit, the current sensor being...
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WO/2017/207030A1 |
The invention relates to a fault-arc identification unit for a low-voltage electric circuit, having: at least one voltage sensor for the periodic determination of electric voltage values (un, un-1) of the electric circuit; and at least o...
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WO/2017/207535A1 |
The invention relates to an arc fault identification unit for an electrical three-phase alternating current circuit with three phase conductors and a neutral conductor, having - voltage sensors which are assigned to each phase conductor ...
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WO/2017/207032A1 |
The invention relates to an arcing fault recognition unit for an electric low-voltage circuit, comprising at least one voltage sensor for periodically ascertaining electric voltage values (un, un-1) in the electric circuit, the voltage s...
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WO/2017/207029A1 |
The invention relates to a fault-arc identification unit for an electric circuit, having: at least one voltage sensor assigned to the circuit, for the periodic determination of electric voltage values of the electric circuit; and at leas...
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WO/2017/200747A1 |
Multiple relays are connected in parallel by including one or more semiconductor devices connected across the relay contacts. The semiconductor devices are triggered to conduct and shunt transient currents during the opening and closing ...
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WO/2017/200469A1 |
In a multi-phase power grid fed by a power source, earth fault (460) is located by means of a power supply source synchronized with the power grid, which is connected between a zero point of the grid and earth. In a fault current compens...
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WO/2017/196649A1 |
The invention relates to a novel approach for the protection of electrical circuits from ground faults and parallel and series arc faults in a fully solid-state circuit configuration. Solid-state circuits and methods of use are described...
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WO/2017/192106A1 |
A smart control system (1) for detecting plug-in or removal of electrical devices, detecting short circuit, sensing human contact to the conductor line and protecting human from electrical shocks, comprising microprocessor (A), switching...
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WO/2017/178481A1 |
There is provided a method of operating a reconfigurable differential protection scheme for carrying out differential protection of an electrical power network (10), the electrical power network (10) comprising a plurality of terminals (...
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WO/2017/174495A1 |
The invention relates to an electronic circuit (1) for detecting the current winding temperature of phase windings (10) and/or for detecting other characteristics of an electronically commutated electric motor (2) which is connected, or ...
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WO/2017/167514A1 |
The invention relates to a circuit arrangement for protecting loads (7) connected to a multi-phase network (L1; L2; L3), having an undervoltage and overvoltage switch-off function, transient overvoltage protection, and network reconnecti...
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WO/2017/168429A1 |
The present invention an integrated overload and earth fault protection system, which protects the load / electrical appliances from overload and earth fault. The system comprising Vacuum Circuit Breaker (VCB); Protection Relay; Phase Cu...
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WO/2017/158513A1 |
The present disclosure relates to a rotary triboelectric generator, device comprising different triboelectric materials for generating electricity, said generator comprising: a rotor shaft; a first triboelectric material plate fixed on s...
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WO/2017/155558A1 |
A safety device is provided that could be incorporated in an electrical appliance and the safety device is configured to sense any smoke produced by the faulty or overheated electrical appliance and immediately shutting off the electrica...
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WO/2017/153110A1 |
The invention relates to a device for actuating a three-phase drive device (102), in particular for a roll stabilizer, for a vehicle (100). The three-phase drive device (102) has a supply line connection (118) for providing a supply volt...
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WO/2017/149038A1 |
An apparatus (9) for detecting an electrical arc fault in an electrical system (1), is disclosed. The apparatus comprises an interface (13) configured for receiving data on operation of the electrical system and a processing unit (15) co...
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WO/2017/148826A1 |
The invention relates to a current measuring device (1) for a busbar (3), said current measuring device (1) having an annular or pipe clamp-shaped magnetic field shielding (2) which can be mounted on the busbar (3) so as to surround the ...
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WO/2017/148823A1 |
The invention relates to a device (1) for non-contact current measurement of at least one electric current (I) flowing through a current conductor (3), comprising: a magnetic field shield (2), which surrounds the at least one current con...
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WO/2017/140691A1 |
An apparatus (100) for determining a phase associated with a ground fault on a multiphase power distribution network, the apparatus configured to, based on determination of a spike fault, determine which of a plurality of RMS values of p...
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WO/2017/142639A1 |
A fault current limiter may include a current limiting leg to transmit a first current and a control leg in parallel with the current limiting leg, the control leg to transmit a second current. The control leg may include a plurality of ...
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WO/2017/129277A1 |
An arc fault current detector for an electricity supply having at least two supply conductors (P1, P2) comprises a coil (L1) disposed adjacent to but not surrounding at least one of the conductors and inductively coupled thereto. A circu...
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WO/2017/118558A1 |
The invention relates to a control device for an electromagnetic drive of a switchgear, comprising a plurality of network parts (101, 102), each of which is configured to provide an electrical power sufficient for operating the electroma...
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WO/2017/102489A1 |
The invention relates to a detection device (100) for detecting an arc (104a–i; 909) occurring between a first current-carrying element (103; 903a) and at least one conductive element (103b, 108; 903b, 907), comprising at least one mea...
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WO/2017/087058A1 |
Methods, systems, and apparatus for collect historical power consumption data and power consumption statistics for one or more locations and devices at the location to generate historical power consumption and health data ("historical da...
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WO/2017/068067A1 |
In the field of differential protection schemes for electrical power systems there is a need to employ a synchronization technique to enable time alignment of local terminal current with received current from a remote terminal in order r...
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WO/2017/063944A1 |
The invention relates to a controller, in particular a controller for a motor vehicle, an electric vehicle or a hybrid vehicle. The controller comprises a detection device for detecting an electric arc. The controller comprises a housing...
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WO/2017/060265A1 |
The present disclosure relates to a method of determining phasor components of a periodic waveform, wherein the method comprises: a) sampling the periodic waveform, b) determining a frequency spectrum of the sampled periodic waveform by ...
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