281results about "Spark gap details" 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 discloses a gas spark switch coating electrode and a preparation method and application thereof, and belongs to the technical field of high-power pulse. The gas spark switch coating electrode comprises a gas spark switch metal electrode substrate and a surface composite graphite coating, the preparation method comprises the following steps: (1) performing injection on the surface of the gas spark switch metal electrode substrate to form the superficial nanometer strengthening layer; and (2) sequentially depositing an intermediate transition layer, an in-situ gradient growth composite layer and a titanium-doped graphite-like layer on the surface of the superficial nanometer strengthening layer, and periodically and repeatedly depositing to obtain the titanium-doped graphite-like composite layer. The gas spark switch coating electrode has excellent conductivity, ablation resistance and strong interface bonding performance, and can obtain an effective thickness of 10-20 [mu] m by regulating and controlling cycle repetition times, so that the gas spark switch coating electrode can show uniform ablation morphology and relatively low ablation loss under high-power, high-voltage and large-current breakdown test conditions; and a long-service-life electrode solution is provided for a high-pulse power device.

The invention provides a spark discharge device and a spark discharge accurate control method, and relates to the technical field of spark discharge. The device comprises a pair of spark electrodes, a rotary switch, a capacitor and a power supply, wherein a gap exists between working ends of the spark electrodes; the spark electrode, the rotary switch and the capacitor are connected in series to form a discharging loop, and the capacitor and the power supply are connected in series to form a charging loop; the rotary switch comprises a rotatable rotor and a toothed bar connected with the rotor; a contact is arranged in the discharge loop, and when the contact is in contact with the toothed bar, the discharge loop is conducted. According to the invention, the discharge loop is rapidly switched on and switched off through the rotary switch, various parameters of spark discharge can be accurately and stably controlled, so that the spark discharge is not influenced by the environment, such as spark breakdown voltage, discharge frequency and the like, and the spark discharge can be prevented from being converted into corona, glow or arc discharge, for example, the spark discharge can be normally generated under low air pressure.

An overvoltage protection apparatus (14) has at least one isolator apparatus (38) which is provided in a housing (50), a thermally conductive element (40), an operating element (42) for operating an indicator apparatus (44), and a locking element (58), wherein the thermally conductive element (40) is in contact with the housing (50). The operating element (42) is attached to the thermally conductive element (40) by means of the locking element (58) and the attachment is formed in such a way that the locking element (58) becomes detached from the thermally conductive element (40) and / or from the operating element (48) and releases the operating element (42) when a predetermined temperature at the locking element (58) is exceeded. The invention further discloses a modular overvoltage protection system (10).

Disclosed is a spark plug (1) having a longitudinal axis and comprising: • a housing (2) having a bore along the spark plug longitudinal axis and an end face (27) facing the combustion chamber; • an insulator (3) that is located at least in part within the housing (2), the insulator having an insulator base that extends from an insulator (3) end face facing the combustion chamber to an insulator base neck; • a central electrode (4) located at least in part within the insulator (3); and • at least one ground electrode (5) on the housing (2), the at least one ground electrode (5) and the central electrode (4) being arranged in such a way that the at least one ground electrode (5) forms a spark gap (54) along with the central electrode (4), a width of said spark gap (54) being defined by an inter-electrode distance between the central electrode (4) and the at least one ground electrode (5); • the inter-electrode distance between the central electrode (4) and the at least one ground electrode (5) is not greater than 0.4 mm, and the spark gap (54) is formed at least in part within the housing (2).

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).

The application discloses a kind of pipe plate structure aerosol electric charging device, including variable diameter metal pipe, insulating box, variable diameter pipe, variable diameter metal pipe is the variable diameter structure of thick lower thin, the outer wall of thin end of variable diameter metal pipe is equipped with the insulating object of cylindrical shape, and the opening of lower end of variable diameter metal pipe is provided with pipe discharge electrode. Insulating box is cylindrical, including upper insulating plate, insulating ring, lower insulating plate, the top surface of insulating ring is connected with the bottom surface of upper insulating plate, and the bottom surface of insulating ring is connected with the top surface of lower insulating plate. The center of upper insulating plate is provided with inlet, and the lower end of variable diameter metal pipe is located in the inner cavity of insulating box by penetrating inlet, and variable diameter metal pipe is coaxially installed with upper insulating plate by insulating object. The top surface of lower insulating plate is provided with flat plate electrode at the center, and a plurality of round hole outlets are evenly provided along the circumferential direction of flat plate electrode. Variable diameter pipe is circumferentially connected with the bottom edge of lower insulating plate. The device uses pipe plate structure, utilizes the edge of pipe and negative plate to generate gas discharge, and improves the charging efficiency.

The present invention discloses a high-voltage arc extinguishing device, belonging to the field of high-voltage arc extinguishing, which includes a turntable and an arc extinguishing barrel assembly. A number of jet component storage grooves are provided on the turntable, and gas pressurizing components are placed in the jet component storage grooves. The arc extinguishing barrel assembly is hermetically arranged with the jet component storage grooves or the gas pressurizing components. The present invention can improve the safety ability of the solid-phase arc extinguishing and lightning protection device, and will not damage the external structure under the condition that the external structure is not strengthened; by improving the sealing strength of the gas generation unit to enhance the gas pressure, the gas generation material fuel burns more fully, the gas generation is more concentrated and the direction is controllable, further improving the arc extinguishing effect. The sealing component has a simple structure, well prevents the leakage of strong air flow, can ensure that the generated strong air flow acts on the arc maximally, and ingeniously combines the switching mechanism and the sealing structure. The structure is simple and the connection relationship is not complex, greatly enhancing the reliability of lightning protection and arc extinguishing.

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 invention relates to a surge protection element comprising a housing (2), a surge protection component (3), an overcurrent protection element (4), and an indicator device (5, 6), wherein the indicator device has a force-absorbing portion (51) and an indicator portion (61), and wherein, when the overcurrent protection element is triggered, an actuating element (7) moves into a second position in which it applies a force to the force-absorbing portion, thereby initiating a movement of the indicator portion. A receptacle (8) for the overcurrent protection element is formed in the housing of the surge protection element, wherein the receptacle has an opening (81) through which the movable actuating element protrudes, and wherein a stop (82) is formed in the receptacle and an edge (91) is provided on the overcurrent protection element, by means of which edge the overcurrent protection element rests against the stop, wherein the stop is at a distance a from the force-absorbing portion and the edge is at a distance b from the front face of the actuating element such that the front face of the actuating element, in the first position, is at a predetermined distance x from the force-absorbing portion of the indicator device.

A surge protective device (SPD) module comprises: a first spark gap electrode (124) having an inner end (124A) and an opposing outer end (124B), the inner end (124A) electrically connected to a first electrical terminal of an overvoltage protection circuit; a second spark gap electrode (126) spaced apart from the first spark gap electrode (124), the second spark gap electrode (126) having an inner end (126A) and an opposing outer end (126B), the inner end (126A) of the second spark gap electrode (126) electrically connected to a second electrical terminal of the overvoltage protection circuit; and a semiconductive member (154) having a first end face (154A) and an opposing second end face (154B) interposed between the first spark gap electrode (124) and the second spark gap electrode (126).

An assembly contains a disconnecting device for a surge-arresting device. A first contact and a second contact of the disconnecting device are connected by a first path having a switching element which can be thermally tripped. A second path is disposed electrically in parallel with the first path. An impedance element is disposed in the second path. A spark gap is disposed in the first path.

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 a device for improving the through-flow arc control of a high-voltage large-capacity gas gap switch, and the device comprises a test cavity which is used for providing a controllable gas insulation environment and serves as a carrier of a high-voltage large-current discharge test; the trigger discharge loop is used for generating a high-voltage pulse to drive the trigger cavity to generate plasma jet and induce the main gap to be broken down and conducted at a preset moment; and the large current generation loop is used for storing energy and generating a high-energy fault current simulating an actual working condition after the main gap is conducted. A main gap can form a stable and controllable initial discharge channel under high-voltage and large-gap conditions, active constraint is carried out on an arc movement track in a high-energy fault current flowing stage, and long-term residence of an arc root in a local area of an electrode is avoided, so that the ablation degree of the electrode is remarkably reduced, the through-flow life is prolonged, and meanwhile, the service life of the electrode is prolonged. A transverse magnetic field generated by the spiral groove structure enables an electric arc to rotate along the surface of the electrode, the stability of an arc column is effectively improved, and the reliability under the condition of large current flow is improved.

The invention relates to a collecting device, in particular to a gas switch electrode ablation product collecting device, and solves the technical problem that an existing gas switch electrode ablation product is difficult to stably collect. The gas switch electrode ablation product collection device comprises two first collection fixing discs and two second collection fixing discs which are arranged in a gas switch, and a sampling piece, the two first acquisition fixing discs are respectively connected with the inner walls of the gas switches corresponding to the upper electrode and the lower electrode through electrode lead rods, and the two first acquisition fixing discs are arranged in parallel; the two second acquisition fixing discs are vertically connected between the two first acquisition fixing discs respectively and are positioned on the two sides of the electrode respectively; a collection channel is formed between the two first collection fixing discs and the two second collection fixing discs; the sampling piece is detachably arranged in the mounting hole and used for collecting electrode ablation products in the collecting channel when the gas switch is conducted for discharging.

The application relates to the technical field of pulse power, in particular to a magnetic core auxiliary coaxial pre-ionization three-electrode gas switch, which comprises a gas switch main body, the gas switch main body comprises a low-voltage electrode, a high-voltage electrode and a trigger electrode which are coaxially arranged in an insulating support; the trigger electrode and the low-voltage electrode form a pre-ionization gap, and the trigger electrode and the high-voltage electrode form a main gap; the trigger electrode is used for receiving a trigger pulse voltage; when the trigger pulse makes the bottom of the trigger electrode produce strong field distortion, the pre-ionization gap is rapidly broken down, the main gap is pre-ionized by ultraviolet, and the gas switch main gap is rapidly broken down after the trigger pulse reaches the low-voltage electrode. The switch can improve the stability of the main gap breakdown.

A monitoring arrangement for monitoring a surge through a surge arrester, the surge arrester being adapted to be connected to a power network in order to protect an electrical equipment of the power network against incoming surges passing through the surge arrester. The monitoring arrangement detects a reignition surge, which reignition surge has been occasioned by a switching of a circuit breaker. The monitoring arrangement further calculates the number of detected reignition surges.

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 provides a large-energy ignition triggering device for a sphere gap switch, which can well meet the use requirements of the sphere gap switch device in the field of high-voltage tests and ensure the reliability and stability of ignition triggering. Comprising a light-operated charging circuit which is used for charging according to a charging signal sent by a test control end; the direct-current boosting module is connected with the light-operated charging circuit, the light-operated trigger ignition circuit and the energy storage circuit and used for boosting the voltage of the power supply to a voltage value required for driving a subsequent circuit; the light-operated charging feedback circuit is connected with the direct-current boosting module and the energy storage circuit and is used for feeding back the full electric signal to a test control end; the light-operated trigger ignition circuit is connected with the sphere gap switch and is used for performing trigger ignition action on the sphere gap switch; the energy storage circuit is connected with the sphere gap switch and is used for releasing charges and discharging through the sphere gap switch; the light-operated charging circuit, the light-operated trigger ignition circuit, the light-operated charging feedback circuit and the test control end are all in optical fiber communication.

The present invention belongs to the field of optical fiber supporting equipment and discloses a Y-shaped three-phase arc high-voltage discharge system for an optical fiber fusion splicer. A ZYNQ development board generates two signals, which serve as drive signals for the switching tubes of a Boost circuit module and a Flyback circuit module, respectively. The ZYNQ development board boosts the input DC voltage through the Boost circuit module. The boosted voltage serves as the input voltage for three groups of Flyback circuit modules, thereby obtaining three groups of three-phase DC high voltages with the same voltage amplitude and a phase difference of 120°. The three groups of Flyback circuit modules are connected to a three-phase discharge device. The three-phase DC high voltage breaks through the air to form a three-phase "Y-shaped" arc. The radiant heat zone generated by the arc is used to fuse optical fibers. The system has a large-area thermal radiation field and high heat generation power, which is conducive to the welding of large-diameter optical fibers. The temperature in the thermal radiation field is radially and symmetrically distributed, and the center of the temperature zone is heated evenly, resulting in a good heating effect.

This invention provides a multi-point discharge high-voltage pulse electrode device and its usage method. The device includes a positive electrode and a negative electrode; a positive insulating sleeve is fitted around the positive electrode, an electrode insulating component is fitted around the positive insulating sleeve, and a negative electrode is fitted around the electrode insulating component; the upper end of the positive electrode is connected to a positive connector, which is connected to the positive coaxial cable of a high-voltage pulse power supply; a negative fixing ring is fitted on the outer wall of the negative electrode, which is connected to a negative connector, which is connected to the negative coaxial cable of the high-voltage pulse power supply; the positive electrode can move up and down relative to the electrode insulating component along the axial direction. This invention achieves flexible configuration of the number of discharge points and the superposition effect of stress waves inside the rock, thereby significantly expanding the breaking range of a single pulse and improving rock breaking efficiency.

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.

A rotary spark gap that operates as a high-speed, high-voltage switch includes a rotor assembly having a plurality of rotors and a plurality of insulating spacers mounted on a rotatable rotor shaft with the rotors spaced and separated by the insulating spacers in an axial direction. Each rotor has a plurality of rotor points on the periphery and spaced apart around the outer circumference of the rotor. The rotor points electrically couple with a pair of bar electrodes disposed on opposite sides of the rotors. Each bar electrode is in heat conducting relation with a thermally-conductive heat to dissipate heat from the plasma generated by the arcing between the rotor points and the bar electrode. The rotary spark gap is configured for use with a Tesla coil in a Pulsed Electromechanical Field (PEMF) therapy system or device.

The present invention discloses a self-blowing arc-extinguishing graphite gap surge protection device and a surge protector. The surge protection device includes a first electrode, a second electrode, and a self-blowing arc-extinguishing graphite gap structure located between the first and second electrodes; wherein the first electrode and the second electrode are arranged opposite each other and connected to an external circuit; the self-blowing arc-extinguishing graphite gap structure includes two insulating columns arranged oppositely to form an accommodating cavity, a plurality of insulating rings located within the accommodating cavity, and a plurality of graphite electrodes located on the insulating rings; wherein the two insulating columns and the plurality of insulating rings are each provided with an arc-extinguishing cavity, and the arc-extinguishing cavities are connected to form a gas channel to extinguish the arc generated between the graphite electrodes. The present invention provides arc-extinguishing cavities on both the insulating columns and the insulating rings, thereby forming a gas channel through which gas can flow, thereby extinguishing the arc generated by the graphite electrodes. The high continuous current interruption capability of the surge protection device is greatly improved, thereby optimizing the performance of the surge protection device.

The application discloses a recoil arc-extinguishing cylinder for a solid-phase gas arc-extinguishing lightning protection device, which comprises a top-closed arc-extinguishing cylinder body; a first through hole and a second through hole are arranged on the top of the arc-extinguishing cylinder body; an arc leading mechanism and a gas generator with built-in arc-extinguishing gas pills are arranged on the first through hole and the second through hole respectively; a recoil tube is arranged in the arc-extinguishing cylinder body; the recoil tube is vertically connected to the inner wall of the top of the arc-extinguishing cylinder body, and the recoil tube and the first through hole are in communication with each other. The recoil tube is combined with the arc-extinguishing cylinder, the recoil effect of the recoil tube is utilized to weaken arc energy and reduce the difficulty of solid-phase gas arc-extinguishing; the gas generator utilizes external energy for arc-extinguishing, the recoil tube utilizes lightning energy for arc-extinguishing, and the internal and external energy double synergistic effect is formed to extinguish higher arc energy.

The invention relates to a surge protection device (5); said surge protection device (5) comprising: - a housing having an internal space; - a grounding branch (19), a positive branch (17) and a negative branch (18) which join together; - a grounding connector (7); - n1 positive connectors (8, 9, 10, 11), n1 being greater than or equal to 3; and - n2 negative connectors (12, 13, 14, 15), n2 being greater than or equal to 3. Figure for the abstract: 1