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WO/2020/131005A1 |
A system (100) includes a facility power bus (102) coupled to a utility power grid (112), a power generation sub-system (108) coupled to the facility power bus via one or more first power converters (138), and a fault current control sub...
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WO/2020/132498A1 |
An electric utility distribution system in which power is supplied by a distribution transformer through an electric utility meter including an apparatus for detecting the presence of a back-feed voltage source connected to the load. The...
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WO/2020/126128A1 |
For an arc fault detector (1) with a first electric line (2) and one sensor (3) adapted for monitoring an electric current or voltage spectrum in the first electric line (2) and outputting a broadband measurement signal, it is suggested ...
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WO/2020/126727A1 |
The invention relates to a high-voltage device (10) for the operation of a high-voltage application. The high-voltage device (10) comprises at least one detector (50) for detecting an opened touch-protection cover (38) for at least one v...
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WO/2020/120308A1 |
The invention relates to a circuit assembly, to a system and to a method for switching a high-voltage battery (201) and to a vehicle having such a circuit assembly and such a system. The circuit assembly comprises a transistor for conduc...
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WO/2020/120866A2 |
An electronic current-switching system comprising a driver unit (20) and a switching device (10) with a controlled transistor (12), a control unit (16) coupled to said transistor (12), a power supply unit (17) for supplying the control u...
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WO/2020/115275A1 |
An electrical system forming part of a solar power plant (1) is described. The electrical system includes a plurality of photovoltaic (PV) panels (8), a power converter (2), and a controller (54). In response to a detected electric arc o...
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WO/2020/108795A1 |
The invention relates to a system having an electric consumer, in particular having a drive, in particular having an electric motor supplied by an inverter, wherein the system has an electric device having a switch apparatus and lines, i...
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WO/2020/108509A1 |
A protection circuit(100) for ground short circuit protection, the circuit(100) comprising: a high conduction circuit(110) for controlling the supply of electric power for a functional circuit(1000), wherein the functional circuit(1000) ...
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WO/2020/110060A1 |
The invention relates to remote activation of a communication module of a self-powered intelligent electronic device (IED). The IED controls an auto recloser mounted on an electric pole of a power distribution network. A controller of th...
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WO/2020/103308A1 |
An overcurrent protection control circuit (100) for use in a level shift circuit. The overcurrent protection control circuit can determine that detected large current is stable large current caused by the short circuit of the wiring of a...
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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 ...
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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...
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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 ...
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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...
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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...
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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 ...
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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...
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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...
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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 ...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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 (...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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