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Matches 601 - 650 out of 12,748

Document Document Title
WO/2014/136229A1
In order to obtain an electric power conversion device whereby equipment can be made more compact and cost less, and the time until restarting operation after an accident can be reduced, in a DC power transmission grid that connects a pl...  
WO/2014/135351A1
The invention relates to an overvoltage protection device with a short-circuit function for protecting installations and persons for low-voltage installations, wherein at least one overvoltage protection element and a thermally activatab...  
WO/2013/171186A3
The invention relates to a rail vehicle circuit arrangement, having at least one transformer (20) which, in a first operating mode, is electrically connected to a drive unit (28) and to a railway power supply system (12), and in a second...  
WO/2014/133750A1
A ground fault protection system (216) is disclosed. The ground fault protection system may include a controller (306) that is configured to receive signals representing a ground fault detection voltage and a DC link voltage of a machine...  
WO/2014/132067A1
A fault current limiter (FCL) has a core structure with a first and second magnetisable core members and an AC magnetomotive force source configured to generate a varying magnetic flux in at least a portion of the first and second magnet...  
WO/2014/131564A1
The invention relates to a disconnecting and switching circuit for the overvoltage protection comprising at least one dissipation element, further one thermal disconnecting point which is integrated in the electrical connection path of t...  
WO/2014/132066A1
A fault current limiter (FCL) has a core structure including first and second, spaced magnetisable core members; and an AC magnetomotive force source configured to generate a varying magnetic flux in at least a portion of the first and s...  
WO/2014/132396A1
The purpose of the invention is to obtain a power conversion device used in a DC power transmission system in which a plurality of power supply systems are connected therebetween by a DC line and interconnected with each other and being ...  
WO/2014/127580A1
An electrostatic protection circuit, a display device and an electrostatic protection method. The electrostatic protection circuit comprises a first switch transistor, a second switch transistor, a third switch transistor, a fourth switc...  
WO/2014/128697A1
There is provided a fault current limiter that comprises a magnetically saturable core. The FCL comprises a first DC coil wound around a first portion of the core, with the first DC coil being arranged to saturate at least part of the co...  
WO/2014/128999A1
The present invention relates to a current limiting device for limiting the amount of overcurrent generated, for example, when an accidental short circuit occurs in a power system. The current limiting device comprises: a current limitin...  
WO/2014/126006A1
A superconducting fault current limiter (10) is provided with superconducting elements (71, 72) that are in a superconducting state during electrification with a current value in a fixed range and in a normal conducting state during elec...  
WO/2014/126703A1
A protection monitoring system is provided that includes a protection fault handler. The protection fault handler includes a protection fault indicator. The protection fault handler is configured to activate the protection fault indicato...  
WO/2014/121636A1
Provided is a resonant current limiter based on an insulator-metal phase change resistor. The resistor (RPC) made of an insulator-metallic phase change material is in parallel connection with a capacitor (C), and then is in series connec...  
WO/2014/120450A1
Aspects of the invention provide for an ESD protection device for an SST transmitter. In one embodiment, the ESD protection device includes: a primary ESD protection structure at an output of the SST transmitter; and an additional protec...  
WO/2014/117608A1
An apparatus (20) for breaking a current of a circuit (44) and a control method thereof. The apparatus (20) for breaking a current of a circuit (44) comprises a unidirectional direct current breaker (10) and a bridge branch circuit. The ...  
WO/2014/118316A1
A safety switching device (10) for failsafe switching on and off of a technical installation (11) has an input (24) for picking up an input signal and a failsafe control/evaluation unit (28) which processes the input signal and generates...  
WO/2014/113970A1
An apparatus for eliminating electrostatic charge from a mould, such as a wind turbine blade mould (2). The apparatus comprises heating wires (4) within the mould for heating a zone of a moulding surface of the mould (2), an electrical p...  
WO/2014/114516A1
The invention relates to a measuring system for continuously monitoring a high-voltage bushing. If measurements for monitoring are to be continuously performed at the measurement connection of a high-voltage bushing, the measurement conn...  
WO/2014/107995A1
A false-trigger-proof power supply clamping ESD protection circuit, comprising: an ESD impact detection component, a discharge transistor, a discharge transistor activation access, and a discharge transistor deactivation access. The circ...  
WO/2014/108360A1
The invention relates to a measurement arrangement (1, 22) for a rail potential in a DC railway system, wherein rails (10) of the DC railway system are connected to earth (2) by means of at least one switchable semiconductor element (32)...  
WO/2014/107854A1
A power grid current-limiting apparatus, a power grid current limiter, and a power grid current-limiting system. The power grid current-limiting apparatus comprises: a first current-limiting reactor (101), a first smart high-speed switch...  
WO/2014/108010A1
A fault current limiter based on a combined quick switching switch; the combined quick switching switch is firstly connected to a capacitor (C) in parallel, and then connected to a conventional reactor (L) in series; the combined quick s...  
WO/2014/107115A1
A high voltage blocking device for a manpack antenna (1), the manpack antenna (1) having a radiating element (8) that is designed to be in electrical contact with a radio transmitter (2), wherein a capacitor (10) is connected in serial b...  
WO/2014/104208A1
An oxide superconducting wire which is provided with: an oxide superconducting laminate which comprises a tape-like base, an intermediate layer that is laminated on the base, an oxide superconducting layer that is laminated on the interm...  
WO/2014/102445A1
The invention relates to a method and an arrangement for determining an end-of-life of an overvoltage protection element (2) by determining (101) a predefined voltage limit based on a nominal voltage, determining (102) a measuring voltag...  
WO/2014/103406A1
An electrical circuit forming unit is constituted by forming a steady-state electrical circuit by arranging a plurality of mutually adjoining contact members (11) capable of contacting with and separating from each other between a first ...  
WO/2014/098674A1
According to an embodiment a method for an SPD (300a; 300b) is provided. The method comprises obtaining (405) a current measurement value I from a measurement of an input or an output current of a victim unit (210) associated with the SP...  
WO/2014/094830A1
Regulated power supply assembly for use in electrical switch A regulated power supply assembly (106) suitable for use in an electrical switch (100) is disclosed. The regulated power supply assembly regulates an excitation current provide...  
WO/2014/089751A1
A System and a method are disclosed for suppressing rush current noise in a power switch cell. The system comprises: a power switch (306) having an operational condition dependent upon the state of a control signal; and an inrush current...  
WO/2014/089928A1
An anti-surge power supply circuit and an LED lamp. The power supply circuit comprises an input end (10) and an output end (20), and also comprises a filter circuit (30), a rectifier circuit (40), an anti-surge circuit (50) and a voltage...  
WO/2014/086378A1
The invention concerns an interface for cutting off the power supply for any fault current Id ≤ 300 milliamperes such that: Id≥ IPE + k.Ih where IPE represents the current returning to the power source via the protective conductor co...  
WO/2014/086231A1
An overvoltage protection device and method. The overvoltage protection device (100) includes: a judgment unit (101), the input end of the judgment unit is connected with the input end (Pin) of the device, the output end of the judgment ...  
WO/2014/063666A3
Method of controlling an apparatus compensating ground fault currents for compensating for fault currents in an n-phase distribution system. The apparatus compensating ground fault currents (2) with controlled current sources (3, 3', 3")...  
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...  
WO/2014/082805A1
The present invention relates to an overvoltage protection device that can be adapted to a programmable automaton power supply, including a first detection and protection device capable of detecting a possible overvoltage at a first poin...  
WO/2014/083190A1
The invention relates to a switching device (1), particularly a protective switch, comprising a first contact gap (2) and a second contact gap (3) that each have break contacts (4), said switching device (1) comprising a switching mechan...  
WO/2014/079508A1
The invention discloses temporary load device (2) comprised in a subsea distribution bus (14) connecting a power load system (3) to electrical power supplied by an AC power supply (1) by means of at least one long cable (7). The subsea d...  
WO/2014/081234A1
The present invention relates to a combined overcurrent protection device for blocking a current and a voltage in abnormal conditions, and more specifically, to a complex overcurrent protection device for blocking a current and a voltage...  
WO/2014/079352A1
A power source protection circuit and a chip thereof. The power source protection circuit comprises a clamping circuit (1), a first transistor (M0) and a second transistor (M24). The clamping circuit is coupled between a power source (VD...  
WO/2014/081233A1
The present invention relates to a combined overcurrent protection device for blocking a current and a voltage in abnormal conditions, and more specifically, to a complex overcurrent protection device for blocking a current and a voltage...  
WO/2014/044542A3
The invention relates to a line arrester (1), comprising a discharge column (2), which can be fastened to an overhead line (3) so as to hang. The discharge column (2) can perform an oscillating movement. A corona ring (4) connected to th...  
WO/2014/075989A1
The invention relates to a protective circuit (12) for a current transformer (10) for preventing a secondary voltage (Us) on a secondary circuit (10.1) of the current transformer (10) exceeding a secondary voltage threshold. The protecti...  
WO/2014/075782A1
The subject matter of the invention is an ignition circuit (Z) for a series circuit comprising at least two spark gaps for limiting overvoltages with medium and high power, in particular overvoltages corresponding to the pulse shapes 8/2...  
WO/2014/075111A1
The present invention provides a system and method for an intrinsically safe device. An IS mobile device has a housing, a PCB, a plurality of fuse circuits on the PCB, and a plurality of operational components on the PCB. The IS device i...  
WO/2014/072027A1
The invention deals with a method and device for controlling the ignition of electric arc in the intercontact break of a disconnector during the operation of opening and closing the disconnector used in gas-insulated switchgear. The inve...  
WO/2014/071628A1
A surge protection device (100) having a short-circuit protection function, comprising a surge protection module (102) and a short-circuit current protection module (101).The surge protection module discharges and suppresses a surge curr...  
WO/2014/072300A1
A lightning protection component, comprising at least one main input (2.1) capable of transmitting a lightning signal, at least one main output (3.1) designed to be connected to a piece of equipment (T) to be protected from the lightning...  
WO/2014/067272A1
Embodiments of the present invention relate to a protective apparatus. The apparatus comprises a switching device and a first isolator; one end of the switching device is connected to a negative electrode of a power supply or is connecte...  
WO/2014/032631A3
The design of the triggering circuit (1) of the overvoltage protection connected in three poles to the spark gap (4) of the overvoltage protection, provided with input terminals I (2) and II (3), comprising an auxiliary electrode (7) of ...  

Matches 601 - 650 out of 12,748