1253results about "Overvoltage arrestors using spark gaps" patented technology

An arrester for preventing an insulator supporting a power line from experiencing an electrical flashover comprises an electrode, a varistor, and a separating device. The electrode is spaced apart from the power line or a conductor that is electrically tied to the power line so as to define an external gap therebetween. The separating device, in turn, comprises two portions operative to separate from one another when the varistor experiences an electrical condition sufficient to cause the varistor to fail. The electrode, the external gap, the separating device, and the varistor are arranged in electrical series with one another and in electrical parallel with the insulator.

A surge protection element for a conventional cable connector includes a printed circuit board preferably shaped as two concentric rings connected by two spokes. The outer ring is electrically connected to the grounded portion of the cable connector body. A printed circuit trace on one of the spokes is separated from a printed circuit trace on the inner ring by a spark gap. If a high voltage surge is carried by the coaxial cable transmission line, a spark is formed in the gap. As a consequence, the high voltage surge is transferred to the surge protection element which in turn conducts the electricity to the grounded body of the connector.

An electrically conductive element for protecting electrical components positioned within a cable connector or cable terminator from high voltage surges includes a ring that is positioned in circumferentially surrounding relation to the input pin of the connector or terminator that carries the signal being transmitted by the coaxial cable. The ring includes at least one prong that extends radially inward therefrom which terminates in close but non-contacting relation to the input pin. When a high voltage surge of electricity is carried by the coaxial cable transmission line, a spark is formed in the gap between the prong and the cable connector or terminator. As a consequence, the high voltage surge is transferred to the surge protection element which in turn conducts the electricity to the grounded body of the connector or terminator.

An overvoltage protection device for protection of low voltage electrical installations, has a device base part with terminals for phase conductors and ground or neutral conductors and at least one overvoltage protection element, with at least one arrester which is located in a housing. The base part of the device has at least one telecommunications contact which has a switch for remote indication of the state of at least one overvoltage protection element, the base part of the device having plug contacts which are connected to the terminals, and the overvoltage protection element having corresponding connector contacts so that the overvoltage protection element can be plugged onto the base part of the device. The overvoltage protection device is improved by the overvoltage protection element having an optical status display and the optical status display and the switch of the telecommunications contact being actuated via a common mechanical actuating system.

The invention concerns a wind power installation. Such wind power installations of modern type, for example one of type E-40 or E-66 from Enercon are usually equipped with a lightning protection system which is known for example from DE 44 36 197.The present invention assists to minimise the number of interference with the electronic system by virtue of the flash-over effects at the spark path. A wind power installation comprising an arrangement for continuously discharging electrostatic charging of at least one rotor blade of a wind power installation.

The proposal relates to a device for protecting an electrical and / or electronic component, arranged on a carrier substrate, from electrostatic discharges, an overvoltage occurring in the case of discharge at a carrier-substrate contact element connected to the component being diverted to a ground connection, bypassing the component. It is proposed that the protective device include a first electroconductive structure conductively connected to the jeopardized contact element, and a second electroconductive structure arranged adjacent to the first structure on the carrier substrate and conductively connected to the ground connection. Mutually facing sections of the electroconductive structures are set apart spatially from one another by a defined gap in such a way that an overvoltage transmitted to the contact element is transferred by a spark discharge in the gap from the section of the first electroconductive structure to the section of the second electroconductive structure, and is diverted to the ground connection.

An ESD protection device has a structure that allows ESD characteristics to be easily adjusted and stabilized. The ESD protection device includes a ceramic multilayer substrate, at least a pair of discharge electrodes located in the ceramic multilayer substrate and facing each other with a space disposed therebetween, and external electrodes located on a surface of the ceramic multilayer substrate and connected to the discharge electrodes. The ESD protection device includes a supporting electrode disposed in a region that connects the pair of discharge electrodes. The supporting electrode is made of a conductive material coated with an inorganic material having no conductivity.

The invention discloses a thunder-lightening induced solid-phase arc-extinguishing lightning arrester. The thunder-lightening induced solid-phase arc-extinguishing lightning arrester mainly consists of a lightning arrester shell, an arc-extinguishing rotary table, an electric conduction metal plate, a starting rod, a clamping rod, an induction coil, an arc-extinguishing barrel and a counting pointer; the arc-extinguishing rotary table is arranged inside the lightning arrester shell, and a flat spiral spring for pushing the arc-extinguishing rotary table to rotate is arranged at the central position of the arc-extinguishing rotary table; the electric conduction metal plate is arranged at the upper part of the arc-extinguishing rotary table; the arc-extinguishing rotary table is provided with a plurality of arc-extinguishing gas pills in the peripheral direction; one side of each arc-extinguishing gas pill is provided with a trigger electrode and a groove respectively, one end of each trigger electrode is connected with one of trigger ends of the corresponding arc-extinguishing gas pill through a lead, and the other ends of the trigger electrodes extend out of the edge of the arc-extinguishing rotary table; and the other of the trigger ends of the corresponding arc-extinguishing gas pill is connected with the electric conduction metal plate through a lead. The thunder-lightening induced solid-phase arc-extinguishing lightning arrester is simple in structure, reasonable in design, high in arc-extinguishing ability and stable and reliable to work, and the arc-extinguishing gas pills are changed quickly and conveniently.

An arc containment device is presented. The arc containment device includes a shock shield further having a multiple apertures for escape of gas, the shock shield configured to surround an arc source. The device further comprises an inner enclosure having a multiple openings generally aligned with the multiple apertures, the inner enclosure configured to provide an electrical insulation base for the arc source. An outer enclosure disposed is provided around the inner enclosure, the outer enclosure configured to direct the gas to the environment outside the device.

PCT No. PCT / RU96 / 00251 Sec. 371 Date May 18, 1998 Sec. 102(e) Date May 18, 1998 PCT Filed Sep. 5, 1996 PCT Pub. No. WO97 / 19456 PCT Pub. Date May 29, 1997An electric power transmission line with protection devices against lightening overvoltages in the form of a lighting arrester with a surface discharge. Having a relatively long discharge path, the impulse lightening flashover does not lap over a power arc of operational frequency and, after passing of the lightening overvoltage impulse current, the line will continue a trouble-free operation without being disconnected. Simple and reliable arrester designs are disclosed among which are fittings with dielectric covers and insulators, integrating their direct functions with the lightening arrester's functions.

A device and method are disclosed for protecting a wireless communication system from impulse surges occurring in the system under the impact of lightning discharges. The device includes a high frequency line, and a first decoupling filter formed as a λ / 4 section and a gas arrestor, sequentially connected to the high frequency line, in which the gas arrestor is connected between the first decoupling filter and the ground. A low frequency line and a second decoupling filter are connected in series between an output terminal, through which a signal flows into a circuit, and a contact point between the first decoupling filter and the gas arrestor. The low frequency line includes a low voltage limiter and a low pass filter. A T-shaped high pass filer is connected to the high frequency line.

This invention relates to an efficient laminated graphite discharge arc gap device including: N+1 arc gaps and a pi-shaped connection capacitor set with N capacitors in the same capacitance value, in which, the gaps are serial to each other, the first one is connected with the live wire, the last one is connected to the earth, one end of each capacitor in the set is connected with the conduction piece between the two arc gaps and the other end is connected to the earth, the arc gap is made of graphite, insulation ring pad is set between the graphite electrodes, the arc gaps are assembled in lamination, parameter of each capacitor in the set is selected according to C=In / 2pifVK, in which, In is the induced discharge current on the capacitors, In=I / N, I is the total current of the set, N is the number of capacitors, f is a lightning wave frequency, V is a rating voltage and K is a safety factor greater than or equal to 1.

A different-voltage-class subsection arc-extinguishing anti-thunder gap device comprises an arc-extinguishing device and a protective gap device which is arranged nearby an insulator chain in parallel. The protective gap device is mainly composed of a low-voltage end electrode and a high-voltage end electrode; the arc-extinguishing device comprises an arc-extinguishing cylinder and an arc-extinguishing projectile storage bin I in a disc shape, wherein a trigger coil, a trigger electrode, a projectile trigger position, arc-extinguishing projectiles and a plane scroll spring are arranged inside the arc-extinguishing projectile storage bin I; one end of the trigger electrode is connected with the trigger coil, and the other end of the trigger electrode extends to the projectile trigger position and is connected with the arc-extinguishing projectiles; the plane scroll spring is arranged at the center of the arc-extinguishing projectile storage bin I; the arc-extinguishing projectiles are arranged in a projectile storage rail of the arc-extinguishing projectile storage bin I; one end of the low-voltage end electrode is arranged on a pole and tower cross arm through a connection hardware fitting, and the other end of the low-voltage end electrode is arranged in the trigger coil of the arc-extinguishing device; one end of the high-voltage end electrode is arranged on an overhead conductor, and the other end of the high-voltage end electrode points to the low-voltage end electrode. The different-voltage-class subsection arc-extinguishing anti-thunder gap device is easy to install and replace, long in service life, and capable of greatly improving stability of an electrical power system.

An ESD protection device is manufactured such that its ESD characteristics are easily adjusted and stabilized. The ESD protection device includes an insulating substrate, a cavity provided in the insulating substrate, at least one pair of discharge electrodes each including a portion exposed in the cavity, the exposed portions being arranged to face each other, and external electrodes provided on a surface of the insulating substrate and connected to the at least one pair of discharge electrodes. A particulate supporting electrode material having conductivity is dispersed between the exposed portions of the at least one pair of discharge electrodes in the cavity

The disclosed discharge switch includes upper and lower electrodes setup inside insulated case. Pressure inside the air locked shell body formed by the insulated case and flanges at two ends of the case is 10 -3 - 10 -4 Pa. At least one of the upper and lower electrodes is a movable electrode. Trigger electrode is inlaid inside the fixed electrode or setup between the upper and lower electrodes. Since being air locked in vacuum environment, the upper and lower electrodes possess tremendous ability of ducting transient current in high energy. Moreover, operation reliability of pulse switch is raised because vacuum environment is not interfered from outside. Features are: raised reliability, very low ablation rate of electrode, and wide range of stable operation voltage.

The present invention is provided with a composite electronic device comprising an inductor element and an ESD protection element formed between two magnetic substrates, wherein the inductor element includes insulation layers made of a resin, and conductor patterns formed on the insulation layers, the ESD protection element includes a base insulation layer, a pair of electrodes arranged via gap formed therebetween on the base insulation layer, and an ESD absorbing layer arranged at least between the electrodes, and the ESD absorbing layer includes a composite material having an insulation inorganic material and a conductive inorganic material discontinuously dispersed in a matrix of the insulation inorganic material.

Rack-mountable, tiltable surge protector housings having translatable surge protector trays for surge protector accessibility are disclosed. Related assemblies, methods, and base station equipment are also disclosed. The surge protector housings may be installed in an equipment rack to support the surge protector housing for use. The surge protector housings support one or more surge protectors for receiving input power through the surge protector housing. The surge protector housing is configured to provide surge protected output power from the received input power. The surge protector housings include a surge protector tray having surge protectors supported therein that is translatable to be extendible from and retracted into the surge protector housing to provide convenient access to the surge protectors, such as during installation and replacement of surge protectors, and connecting power to and disconnecting power from the surge protectors.

An ESD protection device includes a ceramic multilayer board, a cavity disposed in the ceramic multilayer board, at least one pair of discharge electrodes having ends, edges of the ends being opposed to each other at a predetermined distance in the cavity, and external electrodes disposed on outer surfaces the ceramic multilayer board and connected to the discharge electrodes. The ceramic multilayer board includes a composite portion, which is disposed in the vicinity of the surface on which the discharge electrodes are disposed and is at least disposed adjacent to the opposed ends of the discharge electrodes and to a space between the opposed ends. The composite portion includes a metal material and a ceramic material.

A socket having an overheating destructive limiting element includes a housing, a live wire conductive plate, a neutral wire conductive plate, at least one live wire terminal, at least one neutral wire terminal, and at least one limiting element. The live wire terminal includes a live wire contact portion in contact with the live wire conductive plate. The neutral wire terminal includes a neutral wire contact portion in contact with the neutral wire conductive plate. The limiting element is an insulating body, and is placed at contact parts of the live wire conductive plate and the live wire contact portion, and / or at contact parts of the neutral wire conductive plate and the neutral wire contact portion. When an operating temperature becomes excessively high, the limiting element becomes deformed and destructed to form a turn-off position.

An in-line surge suppressor assembly having a body with a side aperture and an inner conductor positioned coaxial within a bore of the body. An insert having a planar inductor coil with a post extending from an origin point of the planar inductor coil is positioned with the post passing through the side aperture and coupled to the inner conductor at a distal end. An outer rim of the planar inductor coil is electrically coupled to the body.

A fine arrestor having a body with a bore there through, an inner conductor within the bore, an inner conductor capacitor within the bore coupled between a surge portion of the inner conductor and a protected portion of the inner conductor, and an inner conductor inductor within the bore coupled electrically in parallel with the inner conductor capacitor. A first shorting portion coupled between the surge portion of the inner conductor and the body and a second shorting portion coupled between the protected portion of the inner conductor and the body, for conducting a surge to ground. Also, other coaxial in-line assemblies may be formed incorporating the inner conductor cavity for isolation of enclosed electrical components.

A surge suppressor configured to receive signals from a coaxial line having a signal carrying inner conductor and a grounded outer conductor. The surge suppressor includes an inner conductor exhibiting capacitance and configured to connect to the coaxial line inner conductor, an outer conductor configured to connect to the coaxial line outer conductor and to ground, and an inductor formed of a wire encapsulated in an encapsulating material electrically coupling the inner conductor and the outer conductor. RF signals in the surge suppressor's operating bandwidth pass through the surge suppressor relatively unimpeded while electrical surges will be diverted through the inductor to the outer conductor, and therefore to ground, and possible residual pulses will be blocked from passing through the surge suppressor by the capacitance.

A surge suppression device may include a housing having a cavity, a center conductor positioned within the cavity, a spiral inductor having an inner curve coupled to the center conductor and an outer curve, a coil capture device connected to the outer curve of the spiral inductor, and a ring assembly having a first ring connected to the coil capture device, a second ring connected to the housing, and a voltage limiting device positioned between the first ring and the second ring.

An ESD protection device is manufactured such that its ESD characteristics are easily adjusted and stabilized. The ESD protection device includes an insulating substrate, a cavity provided in the insulating substrate, at least one pair of discharge electrodes each including an exposed portion that is exposed in the cavity, and external electrodes provided on a surface of the insulating substrate and connected to the discharge electrodes. Supporting electrodes obtained by dispersing conductive powder in an insulating material defining the insulating substrate are provided along a bottom surface and a top surface that define the cavity between the exposed portions of the at least one pair of discharge electrodes.

There is provided a surge protector assembly for use with a 66-M type terminal connector block having a plurality of parallel rows of opposed terminals which are laterally spaced apart from each other. The surge protector assembly includes a housing module formed of co-mating front and back halves. A miniature printed circuit board is disposed within the housing module. Surge protector devices, a protector-operational status indicator circuitry, and a ground-connected status indicator circuitry are disposed on the miniature printed circuit board. A plurality of tip / ring terminal contacts are disposed within a lower portion of the housing module for mating with corresponding ones of the opposed terminals of the 66-M type terminal connector block.

An electrostatic protection component includes: a body in which a plurality of ceramic substrates is laminated; and a pair of discharge electrodes which are formed within the body and which are spaced to face each other. The discharge electrodes include main body portions extending along a longitudinal direction, and the main body portions include tips in the longitudinal direction and side edges extending along the longitudinal direction. The pair of discharge electrodes are arranged such that both the main body portions are adjacent to each other in a short direction. The discharge electrodes face each other in the short direction between the side edges, and discharge occurs only between the side edges, between the discharge electrodes.

A method for manufacturing a spark plug and a spark plug manufactured by the method in which a gasket used for securing the air-tightness when mounting the spark plug on an internal-combustion engine is prevented from falling out from the metal shell with a simple step.

Disclosed therein is an electric dipole streamer discharge type lightning conductor, which can gather electric charges in the atmospheric air at one side thereof and generate an electric discharge due to a dielectric breakdown when a potential difference is formed between the electric charges gathered by an electric dipole and the electric charges of the earth so as to emit a great deal of electric charges of the earth toward thunderclouds to thereby induce a thunderbolt.