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Patent Searching and Data


Matches 1 - 50 out of 2,096

Document Document Title
WO/2020/099412A1
The proposed solution relates to an electric motor assembly, comprising at least one electric motor (1) and a control device (2) for controlling the electric motor (1), as well as an electronic detection device (3a, 3b) for detecting at ...  
WO/2020/084297A1
Methods for detecting an arc in an electric circuit carrying alternating current (AC) are provided including monitoring emission of electromagnetic radiation or acoustic noise and corresponding amplitude modulation for each emission of e...  
WO/2020/075181A1
An intelligent transformer monitoring system to detect and monitor random failures in distribution transformers due to improper usage and poor maintenance is provided. The intelligent transformer monitoring system includes a GSM-GPRS, a ...  
WO/2020/075123A1
A device (9) for protecting a direct current electrical system (1) having one or more modules (2) from electric arcs comprises: a first sensor (10) provided with a first ring of ferromagnetic material configured to generate a first signa...  
WO/2020/069697A1
The invention relates to a method for determining a short circuit with the occurrence of an arc on an electrical conductor. The method comprises: capturing a measurement signal for an electrical conductor by means of a sensor device havi...  
WO/2020/064926A1
In order to detect a fault (F) in an arrangement comprising a transformer (4) that has a primary winding (L1) connected in series with a DC voltage line (DC+, DC-) and a secondary winding (L2) coupled magnetically to the primary winding ...  
WO/2020/064110A1
The invention relates to a Rogowski coil for determining the magnitude of the electrical current of a conductor of a low-voltage AC circuit, which outputs an analogue voltage which is equivalent to the magnitude of the electrical current...  
WO/2020/058162A1
The invention relates to a device for coupling two DC grids comprising source-side and load-side capacitors (7, 8) by means of a switching device (1) for regulating the current. The switching device (1) comprises two switching modules (1...  
WO/2020/051645A1
A smoke alarm system including a smoke detecting unit, a relay to control electrical power supply to all or part of a switchboard located remote to the smoke detecting unit, wherein when the smoke detecting unit detects smoke, the smoke ...  
WO/2020/026163A3
The present invention relates to a method for supervising a voltage transformer (110) and operating a circuit breaker(150) connected to a protection relay(100a), the supervisory relay (100) being interfaced with a voltage transformer (11...  
WO/2020/033297A1
A cargo (22) detection system for a refrigerated cargo container (10) includes a cargo sensor (50) body configured to detect presence of cargo (22) in a refrigerated cargo container (10) and a sensor bracket (56) configured for securing ...  
WO/2020/030518A1
The present invention relates to a device (100) for detecting an arc fault in incident light. A device according to the invention has means (110) for detecting the intensity of the incident light in at least two wavelength ranges, wherei...  
WO/2020/023589A1
A wiring device including an interrupting device, a fault detection device, and a controller. The interrupting device is configured to place the wiring device in a tripped condition in which the flow of power between one or more line ter...  
WO/2020/022875A1
Monitoring system for monitoring a medium-voltage electric power network, which can be defined as a network on an operating voltage of approximately 3 kV to 25 kV, the system comprising at least one monitoring device and a controller arr...  
WO/2019/149755A9
The application relates to a fault detection apparatus (108, 208) of a local substation (100, 200) for detecting a grid fault in at least one low-voltage grid (102, 202) connected to the local substation, comprising at least one recordin...  
WO/2020/008019A1
The invention relates to appliance circuit breakers having intelligent limit-value determination. In a training phase, the appliance circuit breaker is adjusted for a certain appliance and for the load behavior thereof. In a subsequent m...  
WO/2019/243470A1
There is provided a digital circuit breaker controller (400) for controlling a circuit breaker. The digital circuit breaker controller (400) comprises programming logic configured to handle interlocking functions, configurations, signall...  
WO/2019/245724A1
A solid-state circuit breaker and method of use. The circuit breaker includes current and voltage sensors, a power converter, and a digital signal processor. The digital signal processor operates the power converter between three operati...  
WO/2019/238369A1
The disclosure relates to a protection device (100) for transferring energy from a two-pole voltage terminal (101) to an electrical load (103). A first fuse circuit (105) is designed to interrupt the flow of a line current from the volta...  
WO/2019/241023A1
Systems and methods for detecting an arc fault in a circuit breaker use a single-coil current rate of change (di/dt) sensor for monitoring both low-frequency alternating current (AC) and broadband high frequency noise on a power line. Th...  
WO/2019/232462A1
A load protection system and a method of protecting a load. The load protection system includes a PLC transmitter module and a PLC receiver module, which are configured to communicate a plurality of bits of data, each bit transmitted nea...  
WO/2019/219894A1
A method and an apparatus for use in an earth-fault protection in a three-phase electric network, the apparatus configured to detect a phase-to-earth fault (60) in the three-phase electric network (50), to determine for each of the three...  
WO/2019/221362A1
Disclosed are a self-power relay and a method for preventing a malfunction thereof. A self-power relay of the present invention comprises: a self-power generation unit for autonomously generating a driving power by performing conversion ...  
WO/2019/219897A1
A method and an apparatus for use in an earth-fault protection in a three-phase electric network, the apparatus configured to detect a phase-to-earth fault (60) in the network (50), to determine for each of the phases (A, B, C) of the ne...  
WO/2019/217352A1
Example embodiments of the invention perform updating of arc-fault detection protection software in a dual function/combination arc-fault circuit interrupter (DF/CAFI) device, without requiring any hardware changes to the device. Mainten...  
WO/2019/217349A1
A detection method and system are provided to detect an arc fault signal in a (HF) high frequency signal monitored on a power line. The HF signal is monitored on the power line over a predefined time period such as a half-cycle of a base...  
WO/2019/212125A1
A circuit breaker control module is disclosed. The circuit breaker control module of the present invention comprises: a plurality of semiconductor switching units for blocking current flows of transmission distribution lines or performin...  
WO/2019/206658A1
The invention relates to a surge arrester (1) having a socket (10) for receiving a cable (8) (e.g. in order to electrically connect the surge arrester to a transformer). The surge arrester has a contact (13) for contacting a cable (8) th...  
WO/2019/199611A1
An electronic device includes a first switch configured to connect a VCONN supply terminal of a Universal Serial Bus Type-C (USB-C) controller to a first configuration channel (CC) terminal of the USB-C controller in response to a USB-C ...  
WO/2019/186490A1
The present invention discloses a method and device for protection in a multi-terminal power transmission system. The device obtains measurements of pre-fault and during-fault currents for each terminal of the power transmission system a...  
WO/2019/180159A1
The invention relates to a power supply unit (1) for operating on an electric AC network with a specified network frequency (26). The power supply unit (1) has at least one transformer (2) with a core (3) which has an opening (4) for pas...  
WO/2019/175030A1
An electrical apparatus comprises a coolant carrier (FA1, FA2, FA3, RA1, RA2, FB1, FB2, RB1, RB2) for carrying coolant, the coolant carrier (FA1, FA2, FA3, RA1, RA2, FB1, FB2, RB1, RB2) arranged to interconnect a plurality of positions (...  
WO/2019/171768A1
A power distribution network monitoring system (10) is provided with a plurality of LTLS (7) and an abnormality determination unit (56). The plurality of LTLS (7) are disposed at prescribed positions of power lines constituting the power...  
WO/2019/172505A1
The present invention relates to an earth leakage breaker and an arc detection apparatus and, more specifically, to an earth leakage breaker and an arc detection apparatus attachable/detachable to/from the earth leakage breaker. An earth...  
WO/2019/172504A1
The present invention provides a protection assistance device of multiple circuit breakers in a low-voltage system, in which protection assistance in both directions from the upper side to the lower side or from the lower side to the upp...  
WO/2019/168256A1
A digital protection relay according to an embodiment of the present invention is a digital protection relay connected to a plurality of devices via a ring network, and comprises: a message transmission unit for transmitting a first stat...  
WO/2019/164572A1
Methods and systems are provided for automatically coordinating protection settings for relays within an electrical power distribution network. A method includes using a graph traversal mechanism to analyze geographical-based equipment d...  
WO/2019/158295A1
The invention relates to a compensation filter for damping common-mode interferences. The compensation filter has a current line, an electric amplifier, a decoupling circuit between the current line and an input of the electric amplifier...  
WO/2019/158289A1
The invention relates to a compensation filter for damping common mode interferences caused by an electrical load. The compensation filter has an operational amplifier, a capacitive element, one first and one second resistive element and...  
WO/2019/149755A1
The application relates to a fault detection apparatus (108, 208) of a local substation (100, 200) for detecting a grid fault in at least one low-voltage grid (102, 202) connected to the local substation, comprising at least one recordin...  
WO/2019/130165A1
The present invention is related to diagnostic operations carried out by an IntelligentElectronic Device (IED), the IED performing a diagnostic operation at a first location and communicatively connected through a gateway device to a ser...  
WO/2019/122041A1
The present invention relates to a method of remotely monitoring a status of a surge arrester disconnector via a long-range wireless mesh communication system of surge arrester disconnectors organized in clusters, each cluster including ...  
WO/2019/115508A1
A fault clearing circuitry (10) is disclosed, which comprises an electrical energy storage (12), at least one controllable switch (14) connectable between the electrical energy storage (12) and at least one electric line (16; 16', 16", 1...  
WO/2019/101626A1
The invention relates to a circuit-breaker module (9) for a field bus system (7), comprising a switch-on unit (12), a control unit (20), a supply inlet (80) designed to feed supply power to said circuit-breaker module (9), a first supply...  
WO/2019/102247A1
The present invention relates to a protection circuit (20) for a shunt resistor comprising: an input terminal (6a) and an output terminal (22), wherein the output terminal is adapted to be connected to a shunt resistor, a normally closed...  
WO/2019/095536A1
An overvoltage protection circuit and a projector, relating to the technical field of projection devices, and the circuit comprising: a first detection circuit (10), a switch circuit (20), and an action and delay recovery circuit (30). T...  
WO/2019/086625A1
A signal acquisition device for a sensor, comprising a differential amplifier, two bias resistors for biasing the measurement device, a common-mode and differential-mode filtering circuit, and two lightning-limiter components. The differ...  
WO/2019/081553A1
The invention relates to a method and to a system for planning an electrical installation (1), wherein components (2..11, S1..S6, 11..13) of the planned installation (1) are registered and a hazard potential (G) for the electrical instal...  
WO/2019/075916A1
Provided are a signal recognition and processing unit, a method for recognizing and processing a signal, and a computer-readable medium, relating to the field of control technology. The signal recognition and processing unit comprises a ...  
WO/2019/075217A1
Arc fault detection devices and methods are described current between a source and a load is periodically measured. A variance of the periodically measured current values is derived and an arc fault can be detected abased on the derived ...  

Matches 1 - 50 out of 2,096