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WO/2012/054337 |
An electronic circuit breaker includes controllable contacts 812) adapted to connect a power source (10) to at least (11), and a microcontroller (14) for monitoring the flow of power to the load (11), detecting different types of fault c...
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WO/2012/054363 |
An electronic circuit breaker includes controllable mechanical contacts (12) adapted to connect a primary power source (10) to at least one load (11); and control circuitry (14-19) for monitoring the flow of power from the primary power ...
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WO/2012/048121 |
A solid-core surge arrester includes a module assembly. The module assembly includes at least one metal oxide varistor (MOV) disk with an outer circumferential surface, and a material applied to the outer circumferential surface. The mat...
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WO/2012/041647 |
The arrangement according to the invention serves for monitoring electrical power consumption of a conductor circuit (2), wherein the conductor circuit (2) comprises at least one series built-in unit (1) and is coupled to a monitoring de...
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WO/2012/042318 |
A self powered relay having a feature for powerless trip reset in the relay is provided. The relay makes use of one or more capacitors (120, 130) for storing energy for trip operations during the normal condition in an electrical system....
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WO/2012/028247 |
The invention relates to a method and device for safely switching a direct-voltage system (1), in particular a photovoltaic system, in the event of an arc occurring on the direct-current side, wherein the generated direct current and the...
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WO/2012/013737 |
The invention relates to a device for monitoring a circuit breaker and to a circuit breaker, in particular for low voltages, for interrupting an alternating current flowing through a conductor (2) when a current limit value is exceeded w...
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WO/2012/012486 |
A system is provided including: an arc fault circuit interrupter AFCI (12) having a line side terminal (L,N,G) and a load side terminal (L',N',G'), wherein the line side terminal is coupled to a voltage source (16 '), and a current sourc...
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WO/2012/003074 |
An electrical assembly having an elongated electrical component, such as a surge arrester, coupled to a grading device for distributing an electric field along the electrical component during operation. The grading device includes a grad...
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WO/2011/151267 |
An arc fault detector comprises a current transformer (CT) having a primary winding and a secondary winding (W1), the primary winding being formed by at least one conductor (L) of an AC or DC supply circuit. The inductance of the CT is s...
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WO/2011/151267 |
An arc fault detector comprises a current transformer (CT) having a primary winding and a secondary winding (W1), the primary winding being formed by at least one conductor (L) of an AC or DC supply circuit. The inductance of the CT is s...
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WO/2011/143374 |
An overvoltage protection circuit includes a voltage clamping device having a predefined voltage threshold at which it starts conducting to prevent an overvoltage condition. A switch is operable to control a flow of current from a power ...
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WO/2011/127498 |
In the case of a residual current device (1) having a test circuit (2) for production of a fault test current, which test circuit (2) has at least one first test resistor (3) and a test button (4), it is proposed for accurate checking of...
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WO/2011/127270 |
In one aspect, a method of electrical arc fault detection when high frequency (e.g., RF noise) is present is disclosed. The method includes determining if first arcing criterion is met, determining if delay criterion is met, implementing...
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WO/2011/126460 |
The purpose of the invention is to create a switch (4), by means of which formation of an arc due to e.g. a defect of a conductor or due to a contact between conductors could be detected in a DC electric current, and prompt interrupting ...
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WO/2011/127270 |
In one aspect, a method of electrical arc fault detection when high frequency (e.g., RF noise) is present is disclosed. The method includes determining if first arcing criterion is met, determining if delay criterion is met, implementing...
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WO/2011/121386 |
The invention describes a method for coordinated transfer of control in a substation system comprising IED or logical devices (LD1, LD2) /servers using GOOSE messages with preconfigured data models with logical nodes (LN1, LN2) containin...
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WO/2011/120112 |
improvements introduced in monitoring system of dielectric state of high voltage equipments with cap acitive insulation, such as condensive bushings, current transformers, potential transformers and similar allow to detect quick evolutio...
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WO/2011/091820 |
The invention relates, inter alia, to a method for operating an arrangement (10) which is suitable for protecting, controlling and/or monitoring an electrical switchgear or energy supply system and comprises: a central control unit (20),...
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WO/2011/091348 |
Detection of fault occurrences within a power distribution system. A transient detector and fault classification system (10) implements an algorithm that detects transients which may result from the occurrence of a fault in the power dis...
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WO/2011/088500 |
A safety control method and system to activate equipment includes multiple operation of an activation device e.g. as a safety interlock, such as a manual foot or hand control (e.g. a trigger, switch, pedal or button) to initiate activati...
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WO/2011/091348 |
Detection of fault occurrences within a power distribution system. A transient detector and fault classification system (10) implements an algorithm that detects transients which may result from the occurrence of a fault in the power dis...
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WO/2011/073019 |
The invention relates to a method for testing electric components (3, 4) in a mains supply, in particular a mains supply for a building, according to which a test command (CH) is transmitted by a test unit (1) in the form of a data trans...
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WO/2011/073772 |
A direct current arc fault circuit interrupter includes separable contacts and a trip circuit to trip open the contacts. The trip circuit includes a number of alternating current sensors structured to sense a current flowing through the ...
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WO/2011/073772 |
A direct current arc fault circuit interrupter includes separable contacts and a trip circuit to trip open the contacts. The trip circuit includes a number of alternating current sensors structured to sense a current flowing through the ...
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WO/2011/052860 |
The present invention relates to an improved PCB plate circuit mounted in a thermotherapy device used for providing heat fomentation and hot massage effects. The PCB plate circuit according to the present invention comprises a main contr...
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WO/2011/039074 |
A communication network for a low-voltage switchboard comprising three types of communication bus. The first communication bus is designed to provide a first communication channel with at least one electronic protection device. A second ...
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WO/2011/027010 |
The present invention relates to a method for protecting human beings against electric shocks. The method is used to detect power being passed through a human body that is insulated from the earth or has no earth connection, said method ...
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WO/2011/022124 |
Energy dissipative tubes and sealing devices are provided, along with methods of fabricating and installing the energy dissipating tubes and sealing devices. An energy dissipative tube can include a length of tubing, a first resin layer ...
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WO/2011/014895 |
An arc detector comprises an analysis unit for evaluating the first measurement signal according to at least one first evaluation scheme for detecting an arc or at least one electrical effect of the arc on the electrical load network (2)...
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WO/2011/012450 |
The invention relates to a supply device for providing electrical energy at a load circuit, containing a safety and monitoring device (50) separately associated with the load. The load circuit can be connected via connection means (10) t...
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WO/2011/003816 |
The invention relates to a method for operating a closing device (1) in a motor vehicle for detecting a pinching case, wherein an object is pinched between a moving closing element (2) of the closing device and a stop edge (3) of the clo...
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WO/2011/003475 |
An Intelligent Electronic Device (IED) having a faceplate provided with at leastone visual indicator (33) which emits light to indicate a status of the IED to a viewer, the IED having enhancing means for enhancing the visual impact of th...
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WO/2010/147832 |
An apparatus to detect arc is presented. The apparatus includes a fiber sensor to detect characteristics of an arc flash and a processor to process at least two characteristics of the are flash. The processor is further configured to gen...
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WO/2010/144689 |
A circuit protection device for protecting a photovoltaic (PV) system from an overcurrent condition. The circuit protection device includes a first electrode electrically connectable to a first line of an electrical circuit, a second ele...
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WO/2010/142525 |
The present invention is concerned with simplified engineering of protection lockout functionality in a Substation Automation (SA) system. Wiring complexity as well as supervision related engineering is replaced by including some protect...
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WO/2010/140055 |
Arc fault detection method and apparatus employ an impedance-based current sensor to provide a sensing signal indicative of current through a conductor. The impedance-based current sensor diverts high frequency components of current thro...
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WO/2010/130296 |
The invention concerns a FPAA-based Mho distance relay considering CVT transient supervision and a method of realizing such a relay. Said relay comprises : - means for applying zone one polarizing and operating signals for three phase to...
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WO/2010/096852 |
The invention relates to a detector unit (1) for detecting high-frequency electric disturbances in electric networks, comprising at least one sensor (2) for the essentially signal-authentic capture of a high-frequency current and/or volt...
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WO/2010/096851 |
The invention relates to an arc detector (1) for detecting light arcs in electric networks, comprising at least one sensor (2) for the essentially signal-authentic capture of a current and/or voltage signal in at least one electric line ...
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WO/2010/094049 |
In order to reduce the risk of fire due to faults in electrical networks, it is proposed in a circuit breaker (11), comprising break contacts for the predetermined shut-off of an electrical network, wherein the break contacts can be actu...
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WO/2010/094049 |
In order to reduce the risk of fire due to faults in electrical networks, it is proposed in a circuit breaker (11), comprising break contacts for the predetermined shut-off of an electrical network, wherein the break contacts can be actu...
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WO/2010/078889 |
The invention relates to a monitoring unit for monitoring and/or signaling or visualizing a plurality of operating parameters of a gas-insulated switchgear system, having a current and voltage supply unit (100) located in the housing of ...
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WO/2010/079325 |
A solar power conversion device has an embedded security module for creating trusted metering data in relation to power generated and for delivering it to a metering data output. The security module might for example be constructed as an...
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WO/2010/076002 |
The present invention relates to a method for determining partial discharges at an electrical component (10). According to the method, an electrical signal comprising partial discharge impulses due to partial discharges of the electrical...
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WO/2010/077830 |
An outage intelligence application receives event messages indicative of occurrences associated with various devices within a power grid. The outage intelligence application determines a state of the various devices based on the event me...
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WO/2010/070430 |
An electrical switching apparatus (14A;20;22;34;64;1 18;120;142) comprises: a first terminal (40); a second terminal (42); separable contacts (44) electrically connected between the first terminal and the second terminal; an operating me...
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WO/2010/070436 |
An arc fault circuit interrupter includes separable contacts, an operating mechanism and an arc fault detector structured to detect an arc fault condition operatively associated with the contacts. The arc fault detector includes a tuned ...
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WO/2010/054415 |
In a residual current circuit breaker (1) having a first unit (2) which is designed to detect a residual current inside an electrical power supply system and to output an analogue residual current signal, an analogue/digital converter (3...
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WO/2010/036218 |
There is disclosed an electrostatic discharge (ESD) protection device and method. An electronic device (100) that employs an exemplary embodiment of the present invention comprises an electronic component (106) having a signal input cond...
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