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WO/2015/114151A1 |
The invention relates to a method and a circuit for detecting an electric arc in an electric circuit supplied with AC current during a supply period, which comprises measuring at least one input signal (S) among a current (I) and an inpu...
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WO/2015/102824A1 |
An intelligent fuse provides the operational status of the power network upon whit the fuse is installed to a mobile device of a remote user. A fuse electronic circuit embedded in the fuse holder of the fuse captures the characteristic v...
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WO/2015/101426A1 |
Devices and Methods for Arc Fault Detection The present invention is directed towards devices and methods for arc fault detection based on arc sound signals. The de- vice can monitor sound data from a power device by one or more micropho...
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WO/2015/094518A1 |
A system for diagnosing circuit protection device field issues includes a remote computer system (58) and a diagnostic circuit protection device (2) installed at a customer location, wherein the circuit protection device includes a proce...
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WO/2015/091071A1 |
The invention relates to a method for detecting electric arcs in a closed chamber having no openings larger than 5 mm and defining a gas volume to be monitored. Said method comprises: a step (11, 13) of measuring a sound level captured b...
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WO/2015/086571A2 |
The invention relates to a device (30) for short-circuiting an electrical installation (10) that comprises at least two electrical conductors (12), which includes at least two connection terminals (42), each being capable of being connec...
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WO/2015/082629A1 |
Alternating current circuit breaker having a processing unit arranged to control a first and second galvanic separation switch (SW2, SW3), a bypass switch (SW1) and a semiconductor switch element (IGBT). A power supply unit is provided w...
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WO/2015/080599A1 |
An overcurrent protection circuit for use in a power supply system to control switching on of the circuit. The circuit is connected between a voltage source and a load. A current sensing resistor senses the current flowing to the load an...
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WO/2015/075614A1 |
The invention relates to the field of power distribution in a protection relay. The invention is a self-powered protection relay adapted to supply power to itself from a power line and to measure current in a power line with at least one...
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WO/2015/075410A1 |
A method for detecting electrical faults in an electrical circuit (24) having transmission wires (22) for power transmission includes determining whether a potential electrical fault condition (38) exists along the transmission wires and...
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WO/2015/057405A1 |
A turbine-based energy generation system (100) includes an electric generator (102) and auxiliary load (112). A power system for the turbine-based energy generation system includes a main converter (106) and an auxiliary converter (110)....
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WO/2015/050506A1 |
The object of the invention is a multipurpose smart module (A,B) for detecting the operating status of electric devices (D) that enables monitoring the status of functioning devices (D) through installation. The module (A,B) of the inven...
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WO/2015/047123A1 |
The invention relates to a fault detection method and system in an Electronic Trip Unit (ETU). An ETU includes a Protection Function (PF) and a Metering Function (MF), each of the PF and MF measuring in parallel the same one or more p...
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WO/2015/028062A1 |
The invention relates to a differential protection method for producing an error signal that indicates an error for a primary component (11, 21) of an electrical power supply system, in which at least two different measurement points (11...
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WO/2015/007779A1 |
In order to compensate for a leakage current in a photovoltaic system, a reference current flowing from at least one current-conducting line (8, 9) under voltage to ground via a capacitor (C1, C2) is detected. A compensation current with...
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WO/2015/002633A1 |
An arc fault circuit interrupter (AFCI) outlet is disclosed which detects and interrupts upstream parallel arc faults. The example AFCI outlet includes a switching element coupled between the line and neutral conductors at the outlet. Th...
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WO/2014/197942A1 |
This disclosure relates to a method for tripping a residual current device comprising a detection of leakage characterised in that the detection of leakage creates a current imbalance between an active conductor and a neutral conductor o...
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WO/2014/193256A1 |
The invention relates to a circuit breaker having an apparatus (22) for use in said circuit breaker (R), the apparatus (22) comprising: a control module (32) configured to control a switch unit (44) electrically connected with two pow...
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WO/2014/187678A1 |
A coil actuator for a low and medium voltage switching apparatus comprising a coil electromagnet (2), a power and control unit (3), which comprises a power circuit (31) operatively connected to said coil electromagnet (2) and a processin...
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WO/2014/171866A1 |
The object of the present invention is to provide a protective arrangement for protection of receiving and/or transmitting devices against High Power Microwaves, wherein the protective device comprises; a conductive layer, a breakdown re...
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WO/2014/147056A1 |
The invention relates to a device comprising at least one first portion (1) for detecting an electrical defect arising in a power grid, and a second portion (2) comprising at least one switch (5) connecting said power grid to a power sup...
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WO/2014/135680A1 |
A power line protection system and method are described with a current meter for monitoring the current (i) in the protected power line (10) and a circuit breaker (13-1,13-2,13-3), with the current meter including a sensor (15), particul...
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WO/2014/137440A1 |
A display unit (110; 110'; 210; 310; 410; 510) is configured for use with a circuit interrupter (100; 100') which outputs a trip notification, trip information, and direct current power to the display unit. The display unit comprises: a ...
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WO/2014/128144A1 |
The invention relates to a method for checking multiple spatially distributed protective devices (SE1, SE2) of an energy supply network (3). In the event of a fault (5) in the energy supply network (3), each of the protective devices (SE...
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WO/2014/124713A1 |
A circuit interruption device (10) comprises: a main branch (12); a secondary branch (14) having an electrical on-resistance which is higher than an electrical on-resistance of the main branch (12); and first and second terminals (16, 18...
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WO/2014/104982A1 |
The subject of the invention is an electronic device for residual current circuit breakers of types A/AC/B/B+/B++, where device enables the implementation of improved methods of protective functions in comparison with the currently known...
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WO/2014/090378A1 |
The invention relates to a transformer protection system (10), comprising a protective housing (12), comprising a transformer which is arranged in said protective housing, in particular a dry transformer, having a transformer core (14) a...
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WO/2014/092880A2 |
A circuit interrupter (2) for a power circuit (4) includes separable contacts (10), an operating mechanism (12) structured to open and close the separable contacts, and a trip circuit (14) cooperating with the operating mechanism to trip...
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WO/2014/087205A1 |
The invention specifically relates to a protection relay that generates a trip signal to operate a circuit breaker in case of fault condition. The protection relay comprises of a first module (505) for measurement and analysis of power p...
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WO/2014/083247A1 |
The invention relates to a device for measuring at least one electrical quantity of a current flowing in an electric apparatus (2), including a main module (20) to be mounted on the electric apparatus (2), the main module (20) including:...
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WO/2014/083271A1 |
Device for limiting disturbances of an electrical nature, such as currents induced by overvoltages caused by these disturbances, in particular electromagnetic, for example relating to events of lightning type in an electrical installatio...
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WO/2014/083193A1 |
The invention relates to an arrangement for detecting arcs in an electric installation arrangement. The installation arrangement has at least one first sub-network (1) and a second sub-network (2). At least one first detector (4) for mea...
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WO/2014/078904A1 |
An electrical supply system including a voltage converter including having an input electrically coupled to a supply for receiving a supply signal and an output for supplying an output signal having a output voltage different to a supply...
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WO/2014/062397A1 |
In a power protection and distribution assembly (10) a trip system (24) monitors electrical current and sends a current status signal (30) to an arc flash protection system (26) indicating whether current characteristic of an arc event i...
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WO/2014/057017A1 |
The aim of the invention is to monitor a line network, in particular an on-board DC electrical system of a motor vehicle, for arcs by connecting a sensor line (10) to a ground wire (14), which connects a load (2) to ground (M), via a fir...
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WO/2014/055042A1 |
The object of the invention is a multipurpose smart module (A,B) for detecting the operating status of electric devices (D) that enables monitoring the status of functioning devices (D) through installation. The module (A,B) of the inven...
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WO/2014/051827A1 |
A direct current (DC) arc fault detector (4) includes a first current sensor (10) sensing an alternating current (AC) component of current flowing in a DC power circuit; a second current sensor (12) sensing a DC component of the current;...
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WO/2014/044736A1 |
The invention relates to a switching apparatus (1) having a switchgear cabinet (2), a piece of switchgear (3), which is arranged in the switchgear cabinet (2), and an interface (4) for wireless communication. The invention is distinguish...
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WO/2014/042941A1 |
Nuisance tripping is reduced in a power protection and distribution system (10) including an upstream circuit breaker (16), a power distribution bus (18), and one or more downstream circuit breakers (20A, 20B,..., 20N). A signal (26A, 26...
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WO/2014/040620A1 |
The invention inter alia relates to a method of detecting a high-impedance fault occurring in an electric distribution circuit that distributes a three-phase alternating current, the method comprising the steps of : applying a plurality ...
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WO/2014/032688A1 |
The present disclosure relates to communication between substations, and in particular to transmission and reception of packets in substation networks. In order to enable routing of otherwise non-routable packets, a device internal tunne...
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WO/2014/032650A1 |
The invention relates to a method and to a device with which the occurrence of arcs in electrical circuits is detected with great reliability. In order to detect the interfering frequencies emitted by arcs in the form of a "pink noise", ...
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WO/2014/031262A1 |
In an electrical distribution system 12 having an arc management system for removal of arcing voltage from feeder circuits 24a-c triggered at least in part by light signals, a primary 61 and secondary 63 optical detectors monitor a downs...
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WO/2014/031261A1 |
In an electrical distribution system an arc management system has a transducer 27 mounted in proximity to the circuit breaker 26 for detecting and signaling a secondary effect of an overcurrent event within the case 25 of the circuit bre...
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WO/2014/019623A1 |
The present invention relates to a power supply and measuring device for an electronic device (e.g. an IED), which is configured to provide supervision, control, protection, communication and/or monitoring functionalities for LV or MV ci...
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WO/2014/009976A1 |
A circuit branch measurement system and device (7) are provided for detecting electrical current by circuit branches in an electrical distribution panel. The circuit branch measurement device consist of a current measurement and data tra...
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WO/2014/009035A1 |
The present invention relates to a method for the ultra-high-frequency (UHF) measurement of a partial discharge (PD), wherein said measurement is carried out using an ultra-high-frequency sensor (C) at at least one point of a gas-insulat...
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WO/2014/005615A1 |
A current transformer assembly is provided. The current transformer assembly includes a carrier frame that supports a busbar sub-assembly and multiple electromagnetic sub-assemblies. The carrier frame is adapted to support the busbars al...
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WO/2014/005639A1 |
The invention relates to a device (100) for a three-phase load (200). In order to provide an improved device (100) for a three-phase load (200), which device can be constructed in an in particular space-saving and cost-saving manner, the...
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WO/2013/188229A1 |
A circuit breaker (112), such as a miniature circuit breaker, that wirelessly communicates state and fault information to a main energy monitoring module (116). The wireless circuit breaker (112) includes a transceiver (114) and a power ...
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