1152results about "Spark gap details" patented technology

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.

A surge suppressor includes a surge suppression device. A novel current limiting fuse design prevents current flow when the surge suppression device fails. A thermal fusing device is configured to prevent current flow when excessive heat is generated in the surge suppression device. A novel enclosure is used for containing the surge suppression device, over current fuse and thermal fuse.

The foregoing and other objects, features and advantages of the invention will become more readily apparent from the following detailed description of a preferred embodiment of the invention which proceeds with reference to the accompanying drawings.

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.

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.

A spark plug, a center electrode therefore and method of construction is provided. The spark plug has a generally annular ceramic insulator extending between a terminal end and a nose end. A conductive shell surrounds at least a portion of the ceramic insulator and a ground electrode having a ground electrode sparking surface is operatively attached to the shell. An elongate center electrode has a body extending between opposite ends, wherein the body is compacted and sintered of a conductive or semi-conductive ceramic material. One of the electrode ends provides a center electrode sparking surface to provide a spark gap between the center electrode sparking surface and the ground electrode sparking surface.

The invention discloses a multi-channel gas spark switch. Two main electrodes (5) are arranged inside a shell body, a trigger electrode (6) is arranged between the two main electrodes (5), screw holes are evenly distributed in the side face of the trigger electrode (6), a blind hole with a smaller hole diameter is formed in the front end of the trigger electrode (6), a needle electrode is arranged in the blind hole, and spraying holes which are communicated with the bottom of the blind hole are formed in an end face of the trigger electrode (6). The inner portion of the blind hole is used as a plasma spraying cavity, the needle electrode and the trigger electrode (6) in the plasma spraying cavity discharge to generate plasma in the plasma spraying cavity, and the plasma can enter one spark gap through the spraying holes. According to the multi-channel gas spark switch, the plasma spraying technology is used as a gas switch trigger method, discharge delayed time is reduced, multi-channel discharge is caused to occur on the peripheries of the plurality of spraying holes, spark inductance caused by discharge is reduced, the service life of the switch is prolonged, the switch can work under a low working voltage condition, and the high trigger characteristics are ensured.

An overvoltage protection device includes first and second electrically conductive electrode members and a varistor member formed of a varistor material and electrically connected with each of the first and second electrode members. The overvoltage protection device has an integral fail-safe mechanism operative to electrically short circuit the first and second electrode members about the varistor member by fusing first and second metal surfaces in the overvoltage protection device to one another using an electric arc.

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.

A disconnector assembly for an arrester includes a housing having first and second opposite ends. A cavity is disposed within the housing. A first electrical terminal is disposed at the first end of the housing, and a second electrical terminal is disposed at the second end of the housing. A cartridge with an explosive charge disposed in the cavity between the first and second electrical terminals. The cartridge has a powder load greater than 0 grams and not greater than approximately 0.15 grams. The powder load is sufficient to separate said second electrical terminal from said first electrical terminal upon cartridge detonation while minimizing the intensity of the explosive separation upon unintended cartridge detonation.

A device for protecting an electrical system against surge voltages, comprising one or more protection components provided with means for connecting same with said system and means for disconnecting said component from said system, characterised in that it comprises arc-breaking means for preventing the generation of electric arcs between the disconnection means and the connection means when the disconnection means is in an open state, wherein said arc-breaking means consist of an insulating flap capable of moving within the gap and comprising a central portion to be positioned between the disconnection and connection means, and side portions shaped in such a way as to prevent the electric arc from bypassing the arc-breaking means. Electrical surge voltage protection devices are also described.

A device for protecting an electrical system against surge voltages, comprising one or more protection components (10), means (20) for disconnecting the protection component (10) and means (30) for visually indicating the state of the component (10), operationally connected to the disconnection means (20) and comprising at least one control part (40) and at least one means (50) for indicating the state of the protection component (10), combined with the control part (40), whereby the relative arrangement of the control part (40) and the disconnection means (20) is such that, when the disconnection means are opened (20), the disconnection means release the control part (40), thereby allowing the control part to move.

An explosion-proof and flameproof pullout safety surge-absorbing module includes a surge-absorbing unit, a protective unit, a function member, and a hot melt component. The unit has a body defining an electrode side. The middle section of electrode side defines a partially exposed electrode side further connected to a first pin. The protective component includes a base and a top cover conjoint to the base. The body is between the base and the top cover. The function member includes a recovery component and a function part. The recovery component is flexible, of which one terminal connects the base and the other terminal connects the function part pivoting onto the base and working in a first state and a second state. In the first state, one terminal of the function part is connected to the partially exposed electrode side; in the second state, the hot melt component is heated and melt.