31results about "Overvoltage arrestors using spark gaps" patented technology

The application provides a capacitor parallel type controllable lightning arrester device, and relates to the technical field of lightning control, which comprises an outer box, two groups of connecting electrodes are fixedly arranged in the middle of the outer box, a lightning arrester group is arranged at the top of the connecting electrodes, and a capacitor is connected to the outside of the connecting electrodes; two groups of positioning templates are arranged, and the two groups of positioning templates are fixedly arranged on the two sides of the inside of the outer box; a slope clamping block is arranged, an automatic on-off control function is provided, the pressure in the hollow electrode strip is gradually increased through the mode of extruding gas, the lowermost air expansion rod is first entered into the lowermost partition support to support the slope clamping block, the slope clamping block is further adhered to the slope clamping block, the sliding contact block is moved, the sliding contact block moves to the positioning template, the sliding contact block is adhered to the spring contact point, the connecting electrode, the capacitor and the hollow electrode strip are connected, rapid control is realized, and the problem that the existing device cannot be gradually automatically connected through integrated unified power is solved.

Circuit protection device (130) for use in a circuit having at least one pair of conductors, wherein the circuit protection device (130) is configured to generate an arc, and wherein the circuit protection device (130) comprises: at least one pair of electrode arrangements (213), wherein a first electrode arrangement of the pair of electrode arrangements (213) is electrically connected to a first conductor of the at least one pair of conductors, and a second electrode arrangement of the pair of electrode arrangements (213) is electrically connected to a second conductor of the at least one pair of conductors; a conductor base (210) designed to support the electrode arrangements (213) on it; a cover (202) which is connected to the conductor base (210) and defines at least one insulation chamber (247), wherein the at least one pair of electrode arrangements (213) is arranged in the at least one insulation chamber (247); an enclosure shield (206) movably connected to the cover (202) in the isolation chamber (247), wherein the enclosure shield (206) defines an enclosure chamber (249) configured to enclose charged particles generated by the arc, and wherein the enclosure shield (206) operates such that it moves relative to the cover (202) in response to a pressure change generated by the arc in the enclosure chamber (249); and an insulation arrangement (207) connected to at least one cover (202) and to the enclosure shield (206), wherein the insulation arrangement (207) is configured to prevent the cover (202) from touching the enclosure shield (206).

A surge protective device (SPD) module for mounting on a busbar includes a busbar terminal contact, an overvoltage clamping element and a feed terminal. The busbar terminal contact is configured to electrically connect the SPD module to the busbar. The feed terminal is configured to electrically connect a feed cable to the SPD module. The overvoltage clamping element and the feed terminal are both electrically connected to the busbar by the busbar terminal contact when the SPD module is mounted on the busbar.

The invention relates to a fuse (10) for a surge protection device (12). The fuse (10) has a housing (16) in which a horn spark gap (24) is arranged, the spark gap having two electrodes (26, 28) separated from each other by a gap (32) in an ignition section (30). The fuse (10) has an adjustment mechanism (40) configured to increase the gap (32) between the electrodes (26, 28) and / or an ignition gap (39) in order to increase the dielectric strength of the fuse (10). The adjustment mechanism (40) is manually operable or coupled to a tripping mechanism (64) configured to automatically trip the adjustment mechanism (40) following at least one tripping event. The invention further relates to an assembly (8) comprising the fuse (10) and a surge protection device (12).

This application relates to the field of power transmission and distribution equipment technology, specifically to a multi-chamber arc extinguishing device, comprising a substrate, an arc extinguishing frame, and a first reinforcing column. The substrate has an axis arranged in a vertical direction, and the arc extinguishing frame is embedded in the substrate. The arc extinguishing frame includes multiple layers of arc extinguishing units arranged at intervals from top to bottom. Each arc extinguishing unit includes an open-ring structure consisting of a solid section and an open section. The solid section and the open section are arranged around the axis to form an open-ring structure. The open sections of at least two adjacent layers of arc extinguishing units are arranged vertically opposite each other, and the vertically aligned open sections form a channel through which casting material can continuously pass. During the casting of the substrate, a columnar casting body can be formed in this channel, and the reinforcing column forms a reinforcing core inside the columnar casting body, thereby enhancing the connection strength between adjacent layers of arc extinguishing units. The multi-chamber arc extinguishing device of this application improves the rigidity of the multi-chamber arc extinguishing device while ensuring compactness.

The invention relates to a surge arrester (1). The surge arrester (1) comprises a housing (3) which has a feed-through (15) having an electrical conductor (17), and comprises a discharge column (5) arranged in the housing (3). The discharge column (5) can be moved relative to the housing (3) along a longitudinal axis (21) of the discharge column (5) between a first end position in which a first end (39) of the discharge column (5) contacts the electrical conductor (17), and a second end position in which the discharge column (5) is electrically separated from the electrical conductor (17). The two electrical conductors (17) are axially positioned on each end (35, 27) of the discharge column (5).

This invention relates to the field of lightning protection technology for high-voltage transmission lines in power systems, specifically to a non-following current multi-stage gap lightning protection device and overvoltage protection method. The device includes multiple multi-stage gap bodies, a high-voltage fixing component, and a low-voltage fixing component. The two ends of each multi-stage gap body are connected to the high-voltage and low-voltage fixing components, respectively. Each multi-stage gap body includes multiple transverse electrodes. These transverse electrodes all point towards the space enclosed by the multiple multi-stage gap bodies and are arranged transversely at intervals in the longitudinal space, forming multi-stage discharge gaps between adjacent transverse electrodes. The high-voltage and low-voltage fixing components are respectively equipped with high-voltage and low-voltage electrodes. This invention employs a split-type distributed structure. The ingenious arrangement of multiple transverse electrodes forms exposed multi-stage discharge gaps, which can quickly guide the movement of the electric arc. The flashover path has stable and reliable discharge performance, effectively dissipating lightning energy and protecting the safety of the distribution network lines.

A feed-in terminal (1) for connecting at least two electrical potentials is shown and described, comprising a terminal housing (2) with three conductor connection points (31, 32, 33) for connecting one conductor each, and with three busbars (41, 42, 43), wherein each busbar (41, 42, 43) is electrically connected to a conductor connection point (31, 32, 33), wherein two bridge slots (51, 52) are formed in the terminal housing (2), so that the potentials applied to the two busbars (41, 42) via each conductor connection point (31, 32) can be distributed to an adjacent terminal block (20) via a bridge element (6) inserted into each bridge slot (51, 52).The feed-in terminal is suitable for additional applications in that at least one busbar section (71, 72) is arranged in the terminal housing (2), in which a connection option (8) corresponding to a bridge shaft (51, 52) is formed for a bridge element (6) that can be inserted into the bridge shaft (51, 52), and in that a disconnect point (91, 92) is formed between the busbar section (71, 72) and a busbar (41, 42), so that the busbar (41, 42) and the busbar section (71, 72) can be connected to each other via a functional element (10, 11) arranged in or insertable into the disconnect point (91, 92).

This invention relates to the field of power system lightning protection technology, specifically to a lightning protection device and method for extinguishing arcs by blowing air through a tortuous channel. The lightning protection device includes multiple lightning arrester units, a high-voltage electrode, and a low-voltage electrode. The multiple lightning arrester units are vertically connected end-to-end, with discharge electrodes at the connection points. Each lightning arrester unit includes an insulating main shaft and sheds spaced apart outside the insulating main shaft. A tortuous channel is provided inside the insulating main shaft, with air inlets formed at the corners of the tortuous channel. Gas-generating components are located between adjacent air inlets within the tortuous channel, without blocking the tortuous channel. The high-voltage electrode is located at the top of the lightning arrester unit at the top; the low-voltage electrode is located at the bottom of the lightning arrester unit at the bottom. The top of the tortuous channel is connected to either the high-voltage electrode or the discharge electrode, and the bottom is connected to either the low-voltage electrode or the discharge electrode. The tortuous channel extends the flashover path, facilitating rapid cooling. During flashover, the gas-generating components release gas upon heating, which blows out the arc within the channel.

A feed-in terminal (1) for connecting at least two electrical potentials is shown and described, comprising a terminal housing (2) with three conductor connection points (31, 32, 33) for connecting one conductor each, and with three busbars (41, 42, 43), wherein each busbar (41, 42, 43) is electrically connected to a conductor connection point (31, 32, 33), wherein two bridge slots (51, 52) are formed in the terminal housing (2), so that the potentials applied to the two busbars (41, 42) via each conductor connection point (31, 32) can be distributed to an adjacent terminal block (20) via a bridge element (6) inserted into each bridge slot (51, 52).The feed-in terminal is suitable for additional applications in that at least one busbar section (71, 72) is arranged in the terminal housing (2), in which a connection option (8) corresponding to a bridge shaft (51, 52) is formed for a bridge element (6) that can be inserted into the bridge shaft (51, 52), and that a disconnect point (91, 92) is formed between the busbar section (71, 72) and a busbar (41, 42), so that the busbar (41, 42) and the busbar section (71, 72) can be connected to each other via a functional element (10, 11) arranged in or insertable into the disconnect point (91, 92).

The invention relates to a surge arrester (1). The surge arrester (1) comprises a housing (3) having a feedthrough (15) with an electrical conductor (17), and a discharge column (5) arranged in the housing (3). The discharge column (5) is displaceable relative to the housing (3) along a longitudinal axis (21) of the discharge column (5) between a first end position, in which a first end (39) of the discharge column (5) contacts the electrical conductor (17), and a second end position, in which the discharge column (5) is electrically isolated from the electrical conductor (17).

Circuit protection device (130) for use in a circuit containing at least one pair of conductors, wherein the circuit protection device (130) is configured to generate an arc, wherein the arc products generating the arc include arc gases, and wherein the circuit protection device (130) comprises: at least one pair of electrode arrangements (213), wherein a first electrode arrangement of the pair of electrode arrangements (213) is electrically connected to a first conductor of the at least one pair of conductors, and a second electrode arrangement of the pair of electrode arrangements (213) is electrically connected to a second conductor of the at least one pair of conductors, wherein the at least one pair of electrode arrangements (213) is configured to generate the arc; a conductor base (210) for mounting the electrode arrangements (213) on it; a cover (202) connected to the conductor base (210) and defining at least one insulation chamber (247), wherein the at least one pair of electrode arrangements (213) is arranged in the at least one insulation chamber (247); an enclosure shield (206) arranged on the conductor base (210) in the insulation chamber (247), wherein the enclosure shield (206) defines an enclosure chamber (249) enclosing the at least one pair of electrode arrangements (213), wherein the enclosure shield (206) is configured to at least partially enclose arc products in the enclosure chamber (249); and a preload arrangement (246) positioned between the cover (202) and the enclosure shield (206) and connected to at least one of the cover (202) and the enclosure shield (206), wherein the preload arrangement (246) is configured to allow the enclosure shield (206) to move away from the conductor base (210) in order to define a gap between the conductor base (210) and the enclosure shield (206) to allow at least some of the arc gases to escape from the enclosure chamber (249).

The present invention relates to a safety device for surge protection devices. [Solution] The safety device 10 has a housing 16 in which a horn gap 24 is located, and the horn gap has two electrodes 26, 28 separated from each other by a gap 32 in the ignition section 30. The safety device has an adjustment mechanism 40 configured to increase the dielectric strength of the safety device by increasing the gap between the electrodes and / or the ignition gap 39. The adjustment mechanism is coupled to an actuation mechanism 64 configured to be operated manually or to be operated automatically as a result of at least one actuation event. The present invention further relates to an assembly comprising a safety device and a surge protection device.

The invention is a surge arrester that includes a housing and discharge modules. Discharge modules include insulating bodies and a plurality of electrodes placed in the insulating bodies and forming discharge gaps between themselves. The discharge modules are located in the housing and electrically connected in series. The mechanical strength of the housing is higher than the mechanical strength of the discharge modules. The technical result of the invention is to reduce the size of the surge arrester compared to surge arresters of the corresponding voltage classes.

The invention relates to a monitoring module (16) for monitoring a surge protection module (21). The monitoring module (16) has a first connection (18) and a second connection (20) for the surge protection module (21). The monitoring module (16) has an overload protection device (22) which is connected to the first connection (18) via a line (26) and can be connected in series with the surge protection module (21) via the first connection (18). The monitoring module (16) includes a bridge circuit (28) for voltage detection. The monitoring module (16) has an evaluation unit (30) which is connected to the line (26) via a tap (29) of the bridge circuit (28) in order to detect and evaluate a voltage drop across the overload protection device (22) and / or a voltage drop between the first connection (18) and the second connection (20). A surge protection system (10) is also described.

Integrated device having GDT and MOV functionalities. In some embodiments, an electrical device can include a first layer and a second layer joined with an interface, with each having an outer surface and an inner surface, such that the inner surfaces of the first and second layers define a sealed chamber therebetween. The electrical device can further include an outer electrode implemented on the outer surface of each of the first and second layers, and an inner electrode implemented on the inner surface of each of the first and second layers. The first layer can include a metal oxide material such that the first outer electrode, the first layer, and the first inner electrode provide a metal oxide varistor (MOV) functionality, and the first inner electrode, the second inner electrode, and the sealed chamber provide a gas discharge tube (GDT) functionality.

The present invention provides a surge protective device and a corresponding module. According to an aspect of the invention a surge protective device (1) comprises a base part (2) which is arranged to be fixed on a mounting rail. The base part (2) includes at least a first elongated plug-in section (P1) including at least a first to fourth mating contacts (M1-M4). An elongated first module (PM1) is arranged in the first plug-in section (P1) and includes a first and a second protective circuit component (OV1, OV2) adjacently arranged in longitudinal direction and fixedly mechanically connected to each other. The first module (PM1) includes at least a first to fourth contact pin (C1-C4) inserted in the first to fourth mating contacts (M1-M4), wherein the first and second contact pin (C1, (2) are electrically connected to the first protective circuit component (OV1) and the third and fourth contact pin (C3, C4) are electrically connected to the second protective circuit component (OV2). The base part (2) includes first wiring means (W1) for electrically connecting at least two mating contacts (M2, M3) of the first plug-in section (P1).

The application discloses a closed adjustable distance discharge gap protection device for a neutral point protection equipment, which comprises a sealed shell, a discharge gap, a gas protection device and insulating gas packaged in the sealed shell, and a distance adjusting mechanism, wherein the distance adjusting mechanism comprises a driving motor and a limiting sleeve arranged from top to bottom, a second sealing plate is fixedly connected between the limiting sleeve and a first sealing plate, and a transmission shaft of the driving motor penetrates into the limiting sleeve downward; the first sealing plate and the second sealing plate are cooperatively provided with a through hole in communication, and a horizontal channel in communication with the through hole is arranged in the middle of the limiting sleeve; the discharge gap comprises a gap grounding electrode and a high-voltage electrode, one end of the gap grounding electrode penetrates into the horizontal channel through the through hole, a tooth groove is arranged on the gap grounding electrode, and a gear meshing with the tooth groove is arranged on the shaft part of the transmission shaft in the limiting sleeve. The application aims to provide a device which is convenient for gap distance adjusting of the discharge gap and adopts a closed structure to protect the internal discharge gap and other electrical elements.

The embodiment of the application provides a gas discharge tube and a manufacturing method and device of the gas discharge tube, and belongs to the technical field of overvoltage protection. The gas discharge tube comprises: a porcelain tube uniformly provided with a plurality of discharge gaps; a first mounting surface is arranged around each discharge gap on a first surface of the porcelain tube, a second mounting surface is arranged around each discharge gap on a second surface of the porcelain tube, and corresponding first electrodes and second electrodes are arranged; a first target electrode is connected with a first pin, each first electrode pair comprises two first remaining electrodes connected through a connecting piece, a second target electrode is connected with a second pin, each second electrode pair comprises two second remaining electrodes connected through a connecting piece, and the relative positions of the first electrode pair and the second electrode pair on the first mounting surface or the second mounting surface corresponding to the discharge gap are not completely same. Through the provided scheme, the intermediate electrode is omitted, the volume of the gas discharge tube is reduced, and the production efficiency is further improved.

An arrester (30) for surge protection is described, having a housing (31), wherein the housing (31) functions as an outer electrode, a central electrode (33), wherein the central electrode (33) is arranged fully in an inner region (31a) of the housing (31), and wherein a discharge region is formed between the central electrode (33) and the housing (31), a ceramic body (36) for the electrical insulation of the housing (31) and the central electrode (33), wherein the ceramic body (36) is arranged offset to the discharge space, a shielding element (32), wherein the shielding element (32) is arranged on an inner side (31b) of the housing (31) and wherein the shielding element (32) extends over an entire longitudinal extent of the central electrode (33) along the inner side (31b) of the housing (31).

There is described a surge protection device configured to be fitted to a plurality of electrical wires, the device comprising: a body comprising: surge protection circuitry configured to conduct a voltage to earth during a surge condition; and a plurality of accommodating regions, each accommodating region being configured to receive an electrical wire; wherein each accommodating region comprises a protruding electrical terminal arranged in electrical communication with the surge protection circuity; and a lid configured to extend over the plurality of accommodating regions; wherein the lid is configured to be coupled to the body to clamp any wires received in the accommodating regions against the protruding electrical terminals in the accommodating regions such that, for each accommodating region, a conductor of any wire received in the accommodating region is electrically connected to the surge protection circuitry by the respective protruding electrical terminal.

The utility model belongs to the lightning protection technical field, concretely relates to a kind of lightning protection circuit of blocking and the lightning protection module of blocking using the circuit, lightning protection circuit, including the main circuit for transmitting signal or electric energy, the input end, transient current blocker, ground circuit, output end are sequentially in the transmission direction on the main circuit, ESD protector is set on ground circuit.Lightning protection module, including shell, the input contact piece, transient current blocker, ground circuit, output contact piece are sequentially connected in the shell, ESD protector is set on ground circuit.In lightning protection circuit, high-speed transient current blocker is connected to ESD protector after ground, lightning protection circuit can quickly produce discharge current, reach the response current of high-speed transient current blocker, make high-speed transient current blocker fast action, guarantee the effectiveness and timeliness of lightning protection.The circuit parasitic capacitance of the lightning protection circuit whole is small, and the universality is higher.Using the lightning protection circuit, the miniaturization of lightning protection product can be realized.

The invention relates to a horn spark gap assembly (20) comprising a horn spark gap (18) and an quenching chamber (22) associated with the horn spark gap (18). The horn spark gap (18) has two electrodes (24, 26) between which an arc (28) can be generated, which propagates into the quenching chamber (22). A thermally triggered activation element (32) is associated with one of the electrodes (24, 26) and is configured to be triggered by the arc (28) that has propagated into the quenching chamber (22). The thermally triggered activation element (32) includes a solder joint (34) configured to disconnect the corresponding electrode (24) of the horn spark gap (18). The invention further relates to a disconnect module (12) and a method for operating a horn spark gap assembly (20).

An approach is disclosed for generating seed electrons at a spark gap (100) in the absence of 85Kr. The present approach utilizes the photo-electric effect, using a light source (120) with a specific nominal wave length (or range of wavelengths) at a specific level of emitted flux to generate seed electrons. A spark gap (100) device is provided that includes a first electrode (104) having a first surface and a second electrode (102) having a second surface offset from and facing the first surface. The spark gap further includes a light source (120) configured to emit light toward at least the first surface such that photons emitted by the light source when the spark gap is operated are incident on the first surface and cause electron emission from the first surface.

The utility model relates to gas discharge tube technical field discloses a kind of gas discharge tube, including insulating tube and two electrodes, insulating tube is internally hollow pipe body structure;Two electrodes are oppositely arranged at the two ends of insulating tube, and are enclosed with insulating tube to form sealed cavity, and one end of each electrode towards another electrode is provided with discharge structure, and the facing side of two discharge structures has discharge surface, and two discharge surfaces are spaced and arranged in parallel, and discharge gap is enclosed between two discharge surfaces, and discharge surface includes at least two connection surfaces arranged in intersection. The utility model increases the effective discharge area of electrode, and improves the current-carrying capacity of gas discharge tube.

The utility model relates to the technical field of electrical protection devices, in particular to a miniaturized surge protection device. The module comprises a concave base, a module head is arranged in a notch of the concave base, a protector module is arranged in the module head, a PE electrode end and an N electrode end are arranged on one vertical edge of the concave base, and an L electrode end is arranged on the other vertical edge of the concave base. The protector module comprises a pressure-sensitive protection unit and a gas discharge tube protection unit, the pressure-sensitive protection unit is connected with the L-pole electrode end and the N-pole electrode end, and the gas discharge tube protection unit is connected with the PE-pole electrode end and the N-pole electrode end. According to the invention, the width of the 2P surge protection device with the nominal discharge current equal to 20kA is reduced to 18mm, the installation space of the product is effectively reduced, and the product cost is effectively reduced by reducing the volume.

The invention relates to a conductor arrangement (1) having an electrical conductor (2), an overvoltage arrester (3) and an electrically insulating support (6), the overvoltage arrester having a longitudinal direction (12), an operating state in which the overvoltage arrester (3) is designed for limiting overvoltages occurring in the electrical conductor (2), and a test state in which the overvoltage arrester (3) is not designed for limiting overvoltages, the support being arranged between the overvoltage arrester (3) and the electrical conductor (2) in the longitudinal direction (12), wherein the support (6) is supported by the electrical conductor (2) and the overvoltage arrester (3) is supported by the support (6).

The application discloses a closed discharge gap dynamic sealing distance adjusting structure for a neutral point protection device, which comprises a sealing shell, a gap grounding electrode and an adjusting rod. A cover plate is fixedly arranged on the port of the sealing shell, a through hole is arranged in the middle of the cover plate, and a grounding shield is penetrated into the through hole. An insulating plate is fixedly arranged between the grounding shield and the cover plate, a channel capable of penetrating into the gap grounding electrode is arranged in the middle of the grounding shield, and a grounding row is arranged on the end of the grounding shield outside the cover plate. One end of the gap grounding electrode penetrates into the sealing shell through the grounding shield, and the other end is provided with a connecting block. The adjusting rod is inserted into the channel and fixed with the connecting block, and the adjusting rod is threadedly connected with the grounding shield. The application aims to provide a distance adjusting structure with good sealing performance and capable of adjusting the distance of the discharge gap according to requirements.