278results about "Overvoltage arrestors using spark gaps" patented technology

An overvoltage protection device having a casing with an internal space, an earth branch, a positive branch, and a negative branch that join. The device also has an earth connector, n1 positive connectors, n1 being greater or equal to 3, and n2 negative connectors, n2 being greater than or equal to 3.

The invention relates to a signal wall box with strong electromagnetic pulse combined protection and high shielding effectiveness, which belongs to the field of shielding square cabins of electronic equipment and comprises a shell, an out-cabin panel, an in-cabin panel and a filter. The peripheral shell wall of the shell penetrates through a cabin plate of the square cabin, and an outer cabin panel and an inner cabin panel are installed at the outer end and the inner end of the shell respectively. A plurality of connector sockets are arranged on the out-cabin panel and the in-cabin panel in a one-to-one correspondence mode, and a signal interface is formed by a group of corresponding connector sockets. The plurality of filters are installed in the shell, each signal interface corresponds to one corresponding filter, and the filters are connected in series in a signal loop of a group of connector sockets. The filter comprises a combined filter, a radio frequency protection filter and a short wave protection filter. The signal wall box has lightning protection, high-altitude nuclear explosion electromagnetic pulse protection and high shielding effectiveness at the same time, and provides reliable protection for a signal window of an electronic equipment shielding square cabin in a strong electromagnetic pulse environment.

The invention relates to a monitoring device (14) for detecting a leakage current in a surge protection device (12). The monitoring device (14) has a connection (15) for series connection with the surge protection device (12). The monitoring device (14) has a short-circuit current-quenching and / or overvoltage-switching component (20). The monitoring device (14) has a detection circuit (22) connected in parallel to the short-circuit current-quenching and / or overvoltage-switching component (20). The detection circuit (22) comprises at least one measuring capacitor (24) with a measuring capacitance, which is connected in series with the surge protection device (12). The detection circuit (22) comprises measuring electronics (26) configured to detect a leakage current-relevant parameter. Furthermore, an assembly (16) and a method for detecting a leakage current in an overvoltage protection device (12) are described.

The invention provides a line arrester gap distance correction method and a gap structure thereof, and relates to the technical field of power transmission and distribution primary equipment of a power system. The method for correcting the gap distance of the line lightning arrester comprises the following specific steps: S1, calculating the series gap distance of the lightning arrester according to the 50% discharge voltage of the positive polarity lightning impulse of the lightning arrester with the gap at the altitude of 1000mm and the gap power frequency withstand voltage when the lightning arrester breaks down, and taking the series gap distance as a reference value for correcting the gap distance at different altitudes; by calculating and testing the series gap distance of the line lightning arrester under atmospheric pressure at different altitudes, a correction method for the series gap distance of the line lightning arrester at different altitudes is obtained, reliable action of the series gap distance of the line lightning arrester under lightning overvoltage at different altitudes is ensured, a line insulator is protected, and the service life of the line lightning arrester is prolonged. Line insulator breakdown or flashover is prevented, and the line trip-out rate is reduced; and meanwhile, the maximum power frequency overvoltage occurring in the system can be tolerated.

The invention relates to an ignition device (100) for a spark gap arrangement (200) comprising at least one first and one second ignition capacitor (C1, C2) for voltage division between a first and a second electrode of the spark gap arrangement, a first trigger spark gap (Tgr1) arranged in a first parallel branch to the first ignition capacitor, and a second trigger spark gap (Tgr2) arranged in a second parallel branch to the second ignition capacitor. The invention is characterized in that a first ignition resistor (P1b) is provided in the first parallel branch, wherein a first potential point (101) between the first ignition resistor and the first trigger spark gap is connected to an ignition electrode (ZE2) of the second trigger spark gap.The invention further relates to a spark gap arrangement with the ignition device, an arrangement with a high-voltage device and the spark gap arrangement for protecting the high-voltage device, and a method for igniting the spark gap arrangement.

To provide a transient voltage protection device capable of restraining degradation of transient voltage protection characteristics.SOLUTION: A transient voltage protection device ED1 includes an external electrode 10 disposed on an end face 1a and a plurality of side faces 1c, an external electrode 20 that are spaced apart from the external electrode 10 and disposed on an end face 1b and side faces 1d, an internal electrode 30 that is disposed inside an element body 1 and connected to the external electrode 10, and an internal electrode 40 that is disposed inside the element body 1 and connected to the external electrode 20. The internal electrode 30 includes an end 33 that is exposed to the end face 1a and the side faces 1c and connected to the external electrode 10. The internal electrode 40 includes an end 43 that is exposed to the end face 1b and the side faces 1d and connected to the external electrode 20.SELECTED DRAWING: Figure 2

The present application relates to the field of lightning arresters, and specifically discloses a single-column multi-parallel independent unit lightning arrester, comprising a first unit and a second unit; the first unit comprises a first upper hardware, a first insulating jacket, and a first lower hardware connected in sequence, a first resistor, a first metal pad, and a first electrode are sequentially arranged inside the first insulating jacket along the direction from the first upper hardware to the first lower hardware, a wire is connected between the first upper hardware and the first lower hardware, the wire is passed between the first resistor, the first metal pad, and the first electrode, and a second insulating tube is arranged on the outside of the wire; the second unit comprises a second upper hardware, a second insulating jacket, and a second lower hardware connected in sequence, a second resistor, a second metal pad, and a second electrode are sequentially arranged inside the second insulating jacket along the direction from the second upper hardware to the second lower hardware. The present application sets up multiple parallel independent unit lightning arresters in one place, which is suitable for places with high protection performance requirements and difficult maintenance.

A printed circuit board (PCB) assembly for electrostatic discharge (ESD) protection is disclosed. The assembly includes a top layer comprising at least one signal track and configured to support at least a portion of a plurality of electronic components mounted thereon. A middle layer disposed beneath the top layer. The middle layer comprises at least one ground tack configured to receive electrostatic discharge currents from adjacent layers. A bottom layer disposed beneath the middle layer. The bottom layer comprising at least one power track and configured to support another portion of the plurality of electronic components. A plurality of metal discharge elements disposed on at least one of the top layer or the bottom layer. Each of the metal discharge element is electrically connected to the at least ground track of the middle layer.

The invention relates to a protective device (11) for an electronic component (10), wherein the protective device (11) can be arranged to at least partially encompass the at least one electronic component (10) and an electronic component (10) with such a protective device (11).

A protection device against pulsed currents intended to transmit signals having frequencies lying in a transmission frequency band. The protection device has a signal conduction path and a shielding disposed around the signal conduction path. The signal conduction path has two spark gaps mounted in series and an inductor element linking a portion of the signal conduction path situated between the spark gaps. The inductor element is linked to the shielding. The protection device is configured as a high-pass filter allowing passage over the signal conduction path of the signals having frequencies lying within the transmission frequency band.

A surge protection device (200), SPD, for protecting electrical circuits from transient overvoltage events is disclosed. The surge protection device includes an SPD base (220) comprising a set of terminals and a set of slots electrically coupled to the terminals, and an SPD module (230)comprising a housing, a set of pins configured to engage the slots, and a printed circuit board (PCB) bus contained within the housing. The PCB bus includes a first suppression circuit path and a second suppression circuit path. A suppression component is coupled to the first suppression circuit path. A switch is configured to automatically reconfigure the SPD from the first suppression circuit path to the second suppression circuit path upon failure of the suppression component. The SPD module may include a user-operable switch or jumper configured to select between a fail-open mode and a fail-closed mode. Redundant surge protection modules may be connected through a dual SPD base.

The invention relates to an electrode (100) for a horn spark gap, comprising a connection part (1) with a first connection point (1a); and a load part (2) with at least a second connection point (2a), wherein the second connection point (2a) is connectable to the first connection point (1a) and thereby the load part (2) is mechanically and electrically conductively connectable to the connection part (1); the load part (2) comprises a burn-resistant material; and the load part (2) forms an ignition area (10) for an arc, wherein the first connection point (1a) comprises at least a first contact surface (K1) and a second contact surface (K2) and the second connection point (2a) comprises at least a third contact surface (K3) and a fourth contact surface (K4), wherein when the first and second connection points (1a) are connected,2a) the first contact surface (K1) is in contact with the third contact surface (K3) and the second contact surface (K2) is in contact with the fourth contact surface (K4) and then within a region of the first connection point (1a) and / or within a region of the second connection point (2a) there is an axis of rotation (P) which runs perpendicular to a longitudinal direction of the load part (2) and the first contact surface (K1) and the third contact surface (K3) support a rotation of the connection part (1) against the load part (2) in a first direction of rotation about the axis of rotation (P) and the second contact surface (K2) and the fourth contact surface (K4) support a rotation of the connection part (1) against the load part (2) in a second direction of rotation about the axis of rotation (P), the first direction of rotation being opposite to the second direction of rotation.

The present invention relates to a lightning protection system based on Coulomb's law, belonging to the field of lightning prevention technology. It comprises: a lightning conductor and a discharge ground wire for attracting lightning to a predetermined lightning strike object; an energy storage capacitor for charging the lightning conductor; a high-voltage DC power supply for charging the conductor; an electric voltage regulator for adjusting the voltage according to the intensity of lightning; a power supply for providing power to the high-voltage DC power supply and the overvoltage protection trigger controller; and a spherical gap discharge and protection circuit for ensuring the overvoltage safety of the entire circuit. The lightning protection system of the present invention can effectively avoid damage to humans caused by lightning and ensure the safety of people's lives and property. In addition, the lightning protection system of the present invention has a simple structure, is easy to install, and has good social and economic benefits.

The invention relates to an overvoltage protection assembly comprising: a modular circuit breaker (1) including a second phase connection terminal (2), a second neutral connection terminal (3) and a first housing (4), a modular surge arrester (5) including a third phase connection terminal (6), a third neutral connection terminal (7), a first earth connection terminal (8) and a second housing (9), electrical and mechanical connection means including a first phase electrical conductor (10) and a second neutral electrical conductor (11), characterized: in that it includes a connection module (12) including the electrical and mechanical connection means including the first phase electrical conductor (10) for connection to the second phase connection terminal (2) and to the third phase connection terminal (6),the second neutral electrical conductor (11) for connection to the second neutral connection terminal (3) and to be connected to the third neutral connection terminal (7), and a second earth connection terminal comprising an input for connection with the first earth connection terminal (8) of the modular surge arrester (5) and an output (15), and a third box (16), in that the modular circuit breaker (1), the modular surge arrester (5) and the connection module (12) respectively form a first entity delimited by the first box (4), a second entity delimited by the second box (9) and a third entity delimited by the third box (16).

The invention relates to an overload protection device (1) for protecting electrical components (2), comprising at least two electrical components (2), comprising a carrier (3), which has a plurality of connecting elements (31) for connecting the electrical components (2), and comprising at least one actuator (4), at least one separating element (6) is displaceably arranged on the carrier (3), which separating element (6) is applied by the actuator (4) with a force (F) such that the separating element (6) can be moved by the actuator (4) from a first position into a second position, and the separating element (6) interacts with the two electrical elements (2) in such a way that the separating element (6) can be moved by the actuator (4) from the first position to the second position. In the event of a thermal overload, the two electrical components (2) can be transferred by the separating element (6) to the second position thereof.

The invention relates to the technical field of direct-current power transmission, in particular to an optimization method of a lightning arrester with a series gap and a related device.The optimization method comprises the steps that the steady-state insulation resistance, the series gap insulation resistance and a first fixed value factor of the lightning arrester with the series gap to be optimized are obtained, and the target maximum resistance value is determined according to the steady-state insulation resistance, the series gap insulation resistance and the first fixed value factor; obtaining action equivalent resistance and a second constant value factor of the lightning arrester with the series gap, and determining a target minimum resistance value according to the action equivalent resistance and the second constant value factor; constructing a target resistor assembly according to the target maximum resistance value and the target minimum resistance value; the target resistor assembly is connected to the two ends of the lightning arrester body of the lightning arrester with the series gap in parallel, the optimized lightning arrester with the series gap is obtained, and the technical problem that an existing lightning arrester with the series gap is difficult to adapt to a pseudo-bipolar direct-current power transmission system is solved.

A static electricity elimination component according to the present invention is provided with an element body, a first discharge electrode, a second discharge electrode, and a first lead-out electrode. The element body has a discharge cavity therein. The first discharge electrode is embedded in the element body and has a first exposed section that is exposed to the discharge cavity. The second discharge electrode is embedded in the element body, and has a second exposed section which is exposed to the discharge cavity and faces the first exposed section with a gap therebetween. The first lead-out electrode is embedded in the element body and is connected to the first discharge electrode. The first lead-out electrode has a higher resistance value than the first discharge electrode.

The invention discloses an intelligent nonlinear current-limiting direct lightning protection device, which belongs to the field of direct lightning protection and comprises a current-limiting lightning rod, a multi-gap assembly and a lightning current measurement assembly. By arranging the multi-gap assembly on the current-limiting lightning rod, when the lightning current exceeds the through-current capability of the current-limiting lightning rod, the lightning current is conducted and reduced through the main gap and the multiple gaps on the multi-gap assembly; under the action of the current-limiting lightning rod, the main discharge time of lightning is prolonged from microsecond level to millisecond level, and when the lightning flows through too many gaps, a radial arc spraying effect is generated to further prolong the main discharge time of lightning, so that the lightning waves are changed from continuous waves to discontinuous waves, flashover of the current-limiting lightning rod is avoided, and damage of lightning current to the rod body is avoided; the direct lightning protection device has a self-protection capability; by arranging the lightning current measurement assembly, the device has intelligent functions of lightning current data measurement and transmission, and lightning big data is formed to provide support for follow-up research, product improvement, customer demand meeting and the like.

A spark protection cap plate (20) is disclosed, the spark protection cap plate (20) comprising: a base (22); and two or more spark protection caps (21a, 21b, 21c); each spark protection cap (21a, 21b, 21c) includes a cover portion (24) extending from the base (22), the cover portion (24) defining a cavity (26) inside the spark protection cap (21a, 21b, 21c) within which an end (203) of the fastener (202) may be enclosed. Also disclosed is a fastener joint (200), the fastener joint (200) comprising: a structural member (28); two or more fasteners (202), each fastener (202) having a fastener end (203) protruding from a surface of the structural member (28); and a spark shield cap plate (20), the spark shield cap plate (20) comprising a base (22) and two or more spark shield caps (21a, 21b, 21c), each of the spark shield caps (21a, 21b, 21c) comprising a cover portion (24) extending from the base (22), the cover portion (24) defining a cavity (26) inside the spark shield cap (21a, 21b, 21c), an end (203) of the fastener (202) may be enclosed inside the cavity; and a cured sealing material (27) disposed between the spark shield cap plate (20) and the structure (28), the cured sealing material fixing the spark shield cap plate (20) to the structure (28) in a position such that each end (203) of each fastener (202) is enclosed within the spark shield cap (21a, 21b, 21c).

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).

The invention relates to a terminal block system for DC voltage distribution comprising a base element (G), wherein the base element (G) is suitable for receiving at least two pluggable elements, wherein the terminal block system further comprises a current measuring element (S) that can be plugged into the base element, wherein the current measuring element (S) is configured to measure a current (I) flowing through the current measuring element (S) regardless of the current direction, wherein the current measuring element (S) has a local display (DIS) for displaying the currently measured current, and wherein the current measuring element (S) can be supplied by means of the current (I) flowing through the current measuring element (S).

The invention provides a design method and system for a high-gradient power transmission line lightning arrester. The design method comprises the steps that the minimum through-flow capacity needed by the lightning arrester is calculated according to the voltage grade of a power transmission line and the lightning environment where the power transmission line is located; calculating a through-current capability margin when the high-gradient zinc oxide resistor disc independently forms a resistor disc core body by taking the minimum through-current capacity as a constraint, and further determining the composition of the lightning arrester resistor disc; designing an internal mechanical structure of the lightning arrester on the basis of determining the composition of the resistor disc of the lightning arrester; and designing an insulation height and a creepage distance, and determining the umbrella skirt structure of the lightning arrester. The lightning arrester resistor disc composition designed by the application gives consideration to the characteristics of high gradient and large through-flow of the lightning arrester, the designed internal mechanical structure reduces the internal contact resistance of the lightning arrester body and improves the overall through-flow capability, heat dissipation effect and sealing performance, and the designed lightning arrester umbrella skirt structure reduces the size of the lightning arrester and reduces the cost. And high reliability, large through-flow capacity and excellent external insulation performance are realized.

To provide a transient voltage protection device that can control a discharge part.SOLUTION: A transient voltage protection device 1 comprises: an element assembly 2 that has a cavity S formed therein; internal electrodes 5, 6 that extend along a first direction D1 and are provided in the element assembly 2 to face each other across the cavity S; external electrodes 3, 4 that are connected with the internal electrodes 5, 6; and a discharge auxiliary unit 7 that is provided in the element assembly 2 to be in contact with the internal electrodes 5. 6. The internal electrodes 5, 6 have a principal surface 5f and a principal surface 6f facing each other in a second direction D2 orthogonal to the first direction D1, and apical surfaces 5b, 6b connecting the principal surface 5f and principal surface 6f with each other, respectively. Principal surfaces are in contact with the discharge auxiliary unit 7. The principal surfaces 5f, 6f are in contact with the element assembly 2. The apical surfaces 5b, 6b are in contact with the element assembly 2. The element assembly 2 has a projection that enters the inside of the cavity S from between the principal surfaces 5f, 6f and is located between the apical surfaces 5b, 6b.SELECTED DRAWING: Figure 3

The invention relates to a sensor element with overvoltage protection, comprising: a carrier element; a sensor structure applied or attached to the carrier element for detecting a measurement variable, the sensor structure having a first electrical contact point and a second electrical contact point, the sensor structure being operable by applying a voltage between the first electrical contact point and the second electrical contact point; and an overvoltage protection element applied to the carrier element and comprising a sub-element pair consisting of a first sub-element comprising a first conductor rail and a first pad and a second sub-element comprising a second conductor rail and a second pad spaced apart from the first pad, a first conductor rail electrically connects the first electrical contact to the first pad and a second conductor rail connects the second electrical contact to the second pad, the first pad and the second pad being designed and arranged on the carrier element at a first distance from each other such that a spark gap is formed between the first pad and the second pad.

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.