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WO/2012/050610A1 |
A connector assembly (10) with integrated protection circuitry including a plug subassemby (12) and a sensor connector subassembly (14).The sensor connector subassembly is selectively connectable to the plug subassembly. A circuit board ...
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WO/2012/045610A1 |
The invention relates to a surge protection device (5). The surge protection device (5) has an arrester (1). The arrester (1) should produce an equalization between different potentials and arrest a surge current during use. A sensor (2)...
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WO/2012/045795A1 |
Described herein are arrangements and methods for achieving intrinsic safety for a radio transmission module. One aspect provides an apparatus for transmitting signals in an explosion-hazardous area with intrinsic safety, including: a ra...
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WO/2012/037770A1 |
A new method for protecting thyristors in a direct-current converter valve from discontinuous currents is provided. During the normal working process of the direct-current converter valve, a thyristor is triggered normally when the volta...
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WO/2012/030765A1 |
High voltage direct current systems are provided including one or more outlets (115) and an electronic current limiter circuit associated with the one or more outlets. The electronic current limiter circuit is configured to limit current...
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WO/2012/030963A2 |
Methods and apparatus to clamp overvoltages for inductive power transfer systems are described. An example overvoltage protection circuit has a first terminal (130) configured to receive an alternating current signal for conversion to a ...
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WO/2012/028575A1 |
The invention relates to a circuit for limiting current, having a thermal resistor disposed in a current path to a consumer, and having a switch for bypassing the thermal resistor. The invention further relates to a corresponding method ...
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WO/2012/024014A1 |
In some embodiments, an electrical device can include: (a) an electrical power input configured to receive an input electrical power signal, the input electrical power signal includes a reference power line signal; (b) a power supply con...
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WO/2012/023524A1 |
A magnetizing inrush current suppression device (6) that suppresses magnetizing inrush current in a three-phase, concurrently operating circuit breaker (2) that opens and closes a connection between a power source bus (1) and a modified ...
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WO/2012/016202A2 |
Fault Current Limiters (FCL) provide protection for upstream and/or downstream devices in electric power grids. Conventional FCL require the use of expensive conductors and liquid or gas cryogen handling. Disclosed embodiments describe F...
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WO/2012/013046A1 |
The present invention provides a mobile terminal, which includes: a charging port, a Power Management Unit (PMU), a battery and an anti-surge protective circuit for charging set between said charging port and said PMU. Said anti-surge pr...
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WO/2012/013165A1 |
The apparatus represents a controlled current source (1) that is connected in-between a transformer neutral point (3) and the earth potential. It works not only as a compensator of ground fault currents and higher harmonics of fault curr...
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WO/2012/013166A1 |
The apparatus represents a controlled current source (1) that is connected in-between phase conductors of the transformer (3) of the distribution system and the earth potential. It works not only as a compensator of ground fault currents...
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WO/2012/012426A2 |
A continuous grounding system for use in an alternating current system including a transformer is disclosed. The system includes a switch assembly connected between a transformer neutral of a transformer and a ground, the switch assembly...
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WO/2012/003113A2 |
A grounding switch is described which operates properly even in the presence of negative voltages on a signal line. The grounding switch uses isolated field effect transistors that have their substrates tied to different voltages. The is...
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WO/2012/003114A1 |
Apparatus and methods for providing transient electrical event protection are disclosed. In one embodiment, an apparatus (10) comprises a detection and timing circuit (21), a current amplification circuit (22), and a clamping circuit (23...
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WO/2011/160116A1 |
A fault current limiter (406) that maximizes transient stability by minimizing the power swing experienced by the generator during a fault condition is disclose. A superconducting fault current limiter (SCFCL) (407) is used, whereby the ...
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WO/2011/159893A1 |
Several embodiments of a novel technique for limiting transmission of fault current are disclosed. Current power distribution systems typically have an impedance, or reactor; on the output of the network equipment to limit current In the...
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WO/2011/150828A1 |
A lightning protection circuit includes a lightning protection unit (1) and an interface (2) which are electrically connected with each other. The lightning protection unit (1) includes an internal connected terminal block (11), three pi...
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WO/2011/150985A1 |
The invention concerns a method and a system for online ferroresonance detection in a high voltage electrical distribution network. The method includes: -Overflux detection (23),which acts as the start element, overflux being set if the ...
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WO/2011/146402A1 |
Provided is a system, a tool and a method for communicating with a faulted circuit indicator (FCI), the faulted circuit indicator including a detection circuit for monitoring an electrical conductor of a power system. The system includes...
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WO/2011/141695A1 |
An electronic power conditioner circuit for use in an I EC 61 158 Fieldbus network comprising a series element, a capacitor and a resistor formed as a gyrator circuit, and a biasing circuit, in which said biasing circuit supplies a contr...
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WO/2011/143374A1 |
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/2011/143320A2 |
A surge suppressor device includes a first housing defining a first cavity, input and output conductors disposed in the first cavity of the first housing, a capacitor connected in series with the input conductor and the output conductor,...
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WO/2011/139459A2 |
An overvoltage protection circuit (10) may include a reference voltage generator (22), a trigger circuit (44), and a clamping device (32). The reference voltage generator (22) is for providing a reference voltage that is relatively const...
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WO/2011/139269A1 |
A converter module for a variable speed drive having a semiconductor device for precharge is described. The precharge circuit includes switching modules, one switching module with a first semiconductor switch connected in parallel or ser...
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WO/2011/139204A1 |
A victim unit (310, 410) connectable to a surge protective device (300, 400a) via an alternating current system or a direct current system, the victim unit (310) comprises at least one victim unit sensor (313a, 314a, 315) adapted to meas...
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WO/2011/135094A1 |
A voltage clamp circuit (7) is described for reflecting a voltage at an input node (N1). The voltage clamp circuit (7) comprises a circuit (9) for providing at least two currents (lmir, lref) at its output terminals (OUT1, OUT2). It furt...
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WO/2011/137261A1 |
Various disclosed aspects provide for protecting components (e.g., integrated circuits) from spurious electrical overvoltage events, such as electrostatic discharge. Embedded components with voltage switchable dielectric materials may pr...
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WO/2011/130905A1 |
A pulse current sensor and a lightning protection cabinet with surge wave recording composed of the sensor are provided. The pulse current sensor(17) includes a pair of semi-circular magnetic cores(22) which are installed oppositely, air...
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WO/2011/124605A2 |
A method for the operational control of an inverter (4) designed for DC/AC voltage conversion that has at least one direct-voltage input (2, 3) and that can be connected to a power supply grid via at least one alternating-voltage output ...
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WO/2011/124767A1 |
The object of the invention is a transformer circuit arrangement comprising a first protection unit (116) integrated to a secondary circuit (104) of a transformer (100) in serial connection to at least one capacitive element (112) to pro...
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WO/2011/116488A1 |
The invention relates to a method and apparatus for suppressing an inrush current of a three-phase transformer (15) connected to a three-phase power supply via a triple- pole circuit breaker (20), the transformer (15) being connected and...
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WO/2011/119723A2 |
An Ethernet surge protector can be mounted externally and/or internally to a wall of a building. The Ethernet surge protection device may include a housing, a threaded port, and a surge filter. The housing may define a space along an axi...
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WO/2011/119437A1 |
Apparatus and methods for electronic circuit protection are disclosed. In one embodiment, an actively-controlled protection circuit (15) includes a detector (20), a timer (22), a current source (24) and a latch (26). The detector is conf...
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WO/2011/112130A1 |
An electronic fuse (506, 507) suitable for use in a direct current, DC, applications which is exposed to surges. The electronic fuse (506,507) comprises a current sensor (500) for measuring a current flowing in a current path of the DC s...
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WO/2011/108793A1 |
Disclosed is a superconducting current limiter for suppressing a bus voltage drop of an electric power system. A first wire, a second wire, and a third wire are wound on the same iron core, and a superconductor is connected to one of the...
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WO/2011/104922A1 |
Provided is a surge absorbing circuit which absorbs surges stably and does not affect signals in a signal wire even in the case of high-frequency signals, and also provided is an electronic device which uses the surge absorbing circuit. ...
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WO/2011/098359A1 |
A surge-limiting device (10) according to the invention comprises a varistor (11) that is connected in series to a parallel circuit (12) consisting of a preferably electronic switch (13) and an electronic component (14) with a surge-limi...
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WO/2011/098145A1 |
An arrangement for protecting a solid-state dc-breaker during a fault condition causing a voltage transient across the dc-breaker, wherein the arrangement comprises a first and a second varistor arranged in parallel with the dc-breaker, ...
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WO/2011/097945A1 |
A switching power supply for suppressing high voltage surges comprises a transformer (T1), an input circuit at the primary side of the transformer and an output circuit at the secondary side of the transformer. The input circuit comprise...
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WO/2011/097921A1 |
A Digital Subscriber Line (DSL) protection circuit includes a DSL and Plain Old Telephone Service (POTS) broadband-narrowband mixed signal port (4), a narrowband POTS port (5) and a splitter (6). The DSL and POTS broadband-narrowband mix...
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WO/2011/095199A1 |
The invention relates to a device for limiting current having variable coil impedance. A current limiter is proposed, wherein by using a superconducting coil (5) inside a choke coil (1), the inductance and thus the impedance of the choke...
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WO/2011/095782A1 |
A method of testing a short circuit protection system applied to a spur of an electric circuit, in which the short circuit protection system comprises a current limiting means which applies a current limit to said spur if the current the...
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WO/2011/095624A1 |
Circuit (1) for connecting and disconnecting an energizable electric system (2), in particular for generating and/or storing electric energy, and an electric network (3) of a vehicle, wherein the circuit (1) comprises at least one mechan...
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WO/2011/090827A2 |
An electrostatic discharge (ESD) protection clamp (21, 21', 70, 700) for protecting associated devices or circuits (24), comprises a bipolar transistors (21, 21', 70, 700) in which doping of facing base (75) and collector (86) regions is...
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WO/2011/085563A1 |
A surge suppressor with a thermal protective function comprises an outer case (1) and a base (3) having an assembly plate (2). The base is provided with a surge suppressing element and a thermal protective device (4). The thermal protect...
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WO/2011/073540A1 |
The invention relates to a protection assembly including a protection module (20) that comprises at least one varistor (1) having an operation power threshold. A cutoff apparatus (21), connected to the protection module (20), includes a ...
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WO/2011/069866A1 |
A monitoring device (1) for monitoring a condition of a surge arrester comprises monitoring means (210) adapted to monitor a leakage current recovery of the surge arrester after an occurrence of a surge over a recovery monitoring period ...
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WO/2011/067690A1 |
A device may include a switch and a circuit coupled to the switch. The switch may include a structure with a top portion and a bottom portion and a material included within the structure. The material is configured to expand within the s...
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