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Matches 1 - 50 out of 2,017

Document Document Title
WO/2018/224424A1
The present invention concerns a detection device (19) for detecting a short circuit current in an electrical power transmission cable (1), comprising: - an electrical power transmission cable (1) for a high-voltage DC network, comprisin...  
WO/2018/217883A2
An arc fault protective wiring device disposed in an electrical distribution system is disclosed, the device including a pulse frequency digitizer, the pulse frequency digitizer being configured to receive a plurality of pulses, each pul...  
WO/2018/203859A2
The present invention is a stray current protection device (100) comprising a first line (101) and a second line (102) for connecting a load (300) to a power supply (200), in order to interrupt the current applied to the load (300) in ca...  
WO/2018/200010A1
A circuit for mitigating electric shock including an external impedance detection circuit (120) and a test and holdoff circuit (140). The external impedance detection circuit detects a presence of an external impedance (R16), such as by ...  
WO/2018/200457A1
Embodiments of the present disclosure may enable an electrical component within an electrical distribution equipment cabinet to be audibly monitored via an electrical fault detection device mounted on the housing of the cabinet. The elec...  
WO/2018/185051A1
Electrical switching device (1), comprising at least one semiconductor switch (2, 3) which is arranged in the current path (4, 5), electrical measuring devices (7, 8, 9, 24), a control device (6) which evaluates the measured values ascer...  
WO/2018/177806A1
A domestic appliance (1) comprises a first power supply unit (2), which generates electrical power intended for operation of the domestic appliance from an alternating supply voltage (Ua) provided by a supply network (A), and at least on...  
WO/2018/171240A1
A method and a system for protection against disconnection of power transmission and distribution lines. The method comprises: injecting a monitoring signal at at least one point of at least one phase of power transmission and distributi...  
WO/2018/171923A1
The invention relates to a power switch for breaking an electrical circuit when current and/or current time span threshold values are exceeded, comprising an energy converter, which on the primary side is connected to the electrical circ...  
WO/2018/172138A1
An electric power system comprises recording devices (101-105) located at different elements of the electric power system and configured to record waveform samples of quantities related to operation of the elements of the electric power ...  
WO/2018/162452A1
The invention relates to a DI-circuit breaker device comprising a differential current transformer for detecting fault currents in a phase conductor and a neutral conductor, and a detection device for detecting faulty states of a protect...  
WO/2018/160924A1
A method of detecting a partial discharge in an electrical asset (102) includes sensing of a discharge current in the electrical asset (102) using a transducer (110) and responsively providing a transducer output; processing the transduc...  
WO/2018/160531A1
Communication enabled circuit breakers and circuit breaker panels are described. Methods associated with such communication enabled circuit breakers and circuit breaker panels are also described. A circuit breaker panel may include a cir...  
WO/2018/159914A1
The present invention relates to a complex multifunctional relay system and a control method therefor, by which a relay circuit can complexly perform functions, such as an overcurrent shutdown, an arc fault shutdown, and an electric leak...  
WO/2018/149606A1
The invention relates to a device for protecting consumers (S/L) connected to a supply voltage source (K130) via a connecting line (VL) against an overvoltage on the connecting line (VL), wherein the consumers (S/L) are connected to the ...  
WO/2018/137805A1
The invention relates to a power switch for interrupting an electrical circuit when current and/or current time span threshold values are exceeded, comprising an energy converter, which on the primary side is connected to the electrical ...  
WO/2018/132324A1
A circuit interrupter (10) includes an electronic trip unit (40) structured to receive power from a power supply (15). The electronic trip unit includes a start-up process and is structured to proceed through the start-up process when th...  
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...  
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...  
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...  
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...  
WO/2018/104440A3
The invention relates to an electrical installation (1a, 1b), comprising a switch cabinet (2, 2a, 2b) and a protective switch (3) arranged in the switch cabinet (2, 2a, 2b). The electrical installation (1a, 1b) also comprises two measuri...  
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...  
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...  
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...  
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...  
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...  
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 ...  
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...  
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 (...  
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 ...  
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, ...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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 ...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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 (...  

Matches 1 - 50 out of 2,017