306results about "Air-break switches" patented technology

This disclosure proposes a vacuum circuit breaker, comprising a stationary conductive component and a moving conductive component. The moving conductive component is configured to adjustably move toward and contact the stationary conductive component to achieve the closing action of the vacuum circuit breaker. The solid-sealed pole also includes a buffer energy-absorbing mechanism, which includes a first movable member and a second movable member. The first movable member is located on the side of the stationary conductive component opposite to the moving conductive component. The second movable member is located on the side of the stationary conductive component opposite to the moving conductive component and is movably connected to the stationary conductive component. The second movable member is movably connected to the first movable member. The buffer energy-absorbing mechanism is used to absorb the impact energy generated when the stationary conductive component contacts the moving conductive component. Through the above design, this disclosure utilizes the movable connection design between the first movable member and the stationary conductive component and the movable connection design between the second movable member and the first movable member to construct a buffer structure with two degrees of freedom, thereby achieving a buffer function in the above two degrees of freedom.

This invention discloses a pole-type environmentally friendly gas-insulated switchgear, belonging to the field of switchgear. It includes a gas cabinet with a sealed environmentally friendly gas chamber inside. An isolating bracket and a pole-type bracket are both fixedly installed within the environmentally friendly gas chamber. A disconnecting switch is fixedly mounted on the isolating bracket, with its upper end electrically connected to an upper conductive terminal. A pole-type circuit breaker is fixedly mounted on the pole-type bracket, with its upper end electrically connected to the lower end of the disconnecting switch. The lower end of the pole-type circuit breaker is electrically connected to a lower conductive terminal. The upper conductive terminal is sealed on the upper part of the environmentally friendly gas chamber, and the lower conductive terminal is sealed on the lower part of the environmentally friendly gas chamber. Through the rational installation and structural improvements of the upper and lower conductive terminals, the disconnecting switch, the pole-type circuit breaker, the isolating bracket, and the pole-type bracket within the gas cabinet, the connections between these components are more compact, the environmentally friendly gas chamber is smaller, and leakage is less likely, effectively ensuring the safety of the entire device.

This application relates to a vacuum circuit breaker and a current aging method based on the vacuum circuit breaker. The vacuum circuit breaker includes a circuit breaking module, a transmission module, and a tripping drive module, which are connected sequentially. The circuit breaking module separates the moving contact from the stationary contact in the vacuum interrupter to achieve a tripping action. The separation of the moving and stationary contacts is achieved by the tripping drive module driving an insulating rod to separate according to a received circuit breaking command. The transmission module transmits the kinetic energy of the tripping action to the tripping drive module. Before the kinetic energy is transmitted to the overtravel spring connected to the insulating rod, the overtravel spring is compressed to a preset compression level to cause the moving contact to rebound. The tripping drive module absorbs the kinetic energy of the tripping action. This application provides an effective and cost-efficient method for fully aging the contacts of the vacuum circuit breaker.

The utility model discloses a high -voltage vacuum switch is with locking type insulation base of switch base technical field, including connecting base, switch panel, connecting pipe and fixing part, switch panel setting in the inner chamber of connecting base, the connecting pipe fixed connection in the inner side wall rear side middle part of connecting base, the fixing part fixed connection in the rear side wall middle part of switch panel, the rear side wall fixed connection of switch panel has fixed sleeve, the inner side wall rear side fixed connection of connecting pipe has the tooth in card, the inner side wall rear side fixed connection of connecting base has the limit rod, the outside wall upper side fixed connection of fixing part has the fixed plate, the rear side wall fixed connection of fixed plate has the axle body, this high -voltage vacuum switch is with locking type insulation base, and the structure design is reasonable, makes switch panel rotatable use according to the placement position and direction of electrical equipment, is more convenient, and effectively solves the potential safety hazard.

The invention relates to an arrangement (1) of at least two vacuum interrupters (2) for switching high voltages, wherein each vacuum interrupter (2) has: at least one enclosure (3); at least one fixed contact piece (4) which comprises a contact plate (6) and a contact bolt (7); and at least one movable contact piece (5) which comprises a contact plate (6) and a contact bolt (7). The at least one enclosure (3) comprises at least one ceramic segment (8) and a metallic switching chamber (9). The contact bolt (7) of each of the movable contact pieces (5) is guided into the relevant enclosure (3) via at least one bellows (10). The at least two vacuum interrupters (2) are connected in series and are each designed to switch voltages greater than or equal to 52 kV.

The application discloses an environment-friendly grounding switch with a gas arc-extinguishing medium, which comprises a grounding transmission spring mechanism, a transmission box assembly, a shell support sealing system, a grounding switch moving side assembly and a grounding switch static side conductor assembly; the grounding transmission spring mechanism is in driving connection with the grounding switch moving side assembly through the transmission box assembly; the grounding switch moving side assembly and the grounding switch static side conductor assembly are correspondingly arranged in the shell; the shell support sealing system provides support, sealing and gas chamber environment for the whole; the built-in air cylinder and the piston of the grounding switch moving side assembly form a gas blowing structure, and forced gas blowing auxiliary arc extinguishing is formed during opening. Compared with the prior art, the environment-friendly grounding switch has the advantages that the design structure is convenient to operate and use, and clean dry air or mixed gas arc-extinguishing medium with different proportions of N2 and O2 can be used.

This utility model discloses a circuit for preventing a 6kV vacuum contactor switch from erroneously closing automatically, relating to the field of safety protection technology for high-voltage electrical control equipment. It includes a main control circuit and a suppression circuit, both electrically connected to a control power supply and connected in parallel. The main control circuit includes an inductor L1 and a time relay KT1, both electrically connected to the control power supply and connected in parallel, and both connected in parallel with the suppression circuit. This utility model uses auxiliary contacts CH1 / CH3 to monitor the voltage status in real time, achieving millisecond-level rapid disconnection. Simultaneously, the time relay KT1 ensures complete release of electromagnetic energy, and capacitors C1 / C2 specifically absorb the energy coupled from the cable's distributed capacitance and inductance, thus constructing a triple protection system of electrical detection, timing control, and energy absorption.

The utility model relates to the field of electric power system and high voltage switch equipment discloses vacuum circuit breaker with signal feedback mechanism, including arc extinguishing chamber, the bottom fixedly connected with mechanism box of arc extinguishing chamber, the outside of mechanism box is provided with quick -witted connection mechanism, the top fixedly connected with voltage transformer of quick -witted connection mechanism, the outside fixedly connected with base of mechanism box, the outside of base is provided with quick -witted break mechanism, quick -witted connection mechanism includes support connecting plate, the outside fixedly connected with air cylinder no.

The application discloses an environmental protection gas load switch and belongs to the electrical equipment field, which is used to solve the problem of how to inhibit or eliminate the arc generated when the static contact and the moving contact of the load switch are disconnected. The environmental protection gas load switch comprises a shell, a moving contact, an operating mechanism, a first static contact and an arc extinguishing device. The moving contact is rotatably arranged in the interior of the shell, the operating mechanism is used for controlling the rotation of the moving contact, and the first static contact is fixedly arranged in the interior of the shell. The arc extinguishing device comprises a shell body, a rotating arm, a vacuum bubble and a reset spring, the shell body is fixedly arranged on the shell, the rotating arm is rotatably arranged on the shell body and is provided with an electrically conductive part, the electrically conductive part is arranged on the rotating path of the moving contact, the vacuum bubble is arranged on the shell body, and the two ends of the vacuum bubble are electrically connected with the electrically conductive part and the first static contact respectively, and the reset spring is arranged between the rotating arm and the shell body. When the moving contact is disconnected with the first static contact, the moving contact is electrically connected with the electrically conductive part.

The invention relates to a power switch (1). The power switch (1) comprises a housing (3), which is made of an electrically conductive material, an interrupter unit (5), which is arranged in the housing (3) and is spaced apart from a housing wall (15) of the housing (3) by an intermediate space (17), and a solid insulator (7), which is arranged in the intermediate space (17) and which is at least predominantly made of an electrically insulating insulator material.

The application discloses a kind of gas insulation high-voltage combined electric appliance, including pressure increasing mechanism, cooling mechanism, collection mechanism, control cabinet, circuit breaker, mutual inductor, outgoing line switch, voltage transformer, the pressure increasing mechanism includes protective housing, pressure increasing motor, half gear, rack, pressure increasing piston, slide bar, separation cylinder, second pressure increasing pipe, second pressure increasing pipe, air inlet pipe, line pipe, the protective housing is fixedly arranged in the outside of pressure increasing mechanism, the pressure increasing motor is fixedly connected with the inside of protective housing, the output shaft of the half gear is fixedly connected with pressure increasing motor. By setting pressure increasing mechanism, the pressure of sulfur hexafluoride gas can be additionally increased when the device is arc extinguishing, so as to improve the gas molecular density, and then improve the arc extinguishing performance of the device.

The present invention has been devised to solve the above-described problems, with the objective of the present invention being to provide a load interrupter switch having a function for preventing reconnection due to rebound that may occur during interruption. The load interrupter switch according to one aspect of the present invention is provided with a shaft lever and a rebound prevention latch assembly, thus preventing rebound from occurring after interruption.

A circuit breaker includes a blade operable between a closed-contacts position to close the electrical contacts and an opened-contacts position to open the contacts; a kicker lever with a kicker operable to move the blade to the opened-contacts position or to release the blade from the opened-contacts position; a catch lever operable to a latched position for holding the kicker lever in the opened-contacts position and an unlatched position for unlatching and releasing the kicker lever, and thus the blade, from the opened-contacts position to the closed-contacts position; and a moveable slider operable in a first direction to move and latch the blade, via the kicker and catch levers, in the opened-contacts position and in a second direction to unlatch and release the blade from the opened-contacts position to the closed-contacts position. The catch lever (or portion thereof) is located below or under the slider or portion thereof.

The application discloses a transformer on-load tap changer based on a phase selection technology and a gear switching method, which comprises a main circuit and a transition circuit connected with transformer winding taps, the main circuit comprises gear selection circuit and on-off circuit connected in sequence, the gear selection circuit comprises at least four relays for switching the working gear of the transformer; the on-off circuit is composed of vacuum circuit breaker VCB2, diode D2 and vacuum circuit breaker VCB4 connected in series; the transition circuit is formed by transition resistor R, vacuum circuit breaker VCB1 and diode D1 connected in parallel, and vacuum circuit breaker VCB3 connected in sequence, the transition circuit cooperates with the main circuit to realize the arcless switching of the transformer gear; all the vacuum circuit breakers are controlled to act by permanent magnet operating mechanisms, and the permanent magnet operating mechanisms are used to drive the vacuum circuit breakers to realize the fast on-off according to the voltage phase signal. The application controls the action of the vacuum circuit breaker by the phase selection technology and the conduction and cutoff characteristics of the diode, reduces the generation of arc, and prolongs the electric life.

The utility model relates to a pole switch with integrated coupler and capacitive voltage sensor, including, first electric capacity CH is connected with power A, and second electric capacity CL is connected with first electric capacity CH, one input of high pass filter and low pass filter is connected with one end of second electric capacity CL respectively, the output of high pass filter is connected signal coupler, the utility model promotes long -term reliability and measurement accuracy: in traditional scheme, because voltage sensor and communication coupler are separate, are easily affected by outside environment and lead to system unreliable or measurement inaccuracy. And the utility model through adopting low pass filter isolation high frequency signal ensures voltage sensor normal work, and uses high pass filter to guarantee signal coupler normal operation, effectively prevented high frequency communication signal to voltage sampling loop's crosstalk and strong power frequency voltage to coupler's damage, improved the long -term reliability and voltage measurement accuracy of system.

The application belongs to the technical field of switches, and particularly relates to a circuit breaker or disconnector, which increases a backflow channel structure on the side wall of an arc extinguishing chamber, after the circuit breaker or disconnector arcs, the arc moves upwards, the pressure above the arc extinguishing chamber increases, the pressure in the middle region of the moving and static contacts below the arc decreases, the backflow channel is used to supplement the gas in the space behind the arc with the cold gas above, the arc is inhibited from falling back, and the arc extinguishing performance of the product is improved.

The application relates to a primary and secondary deep fusion complete set pole circuit breaker, and relates to the technical field of power devices, which comprises a case, a solid-sealed pole, a traveling wave combined current sensor, a zero sequence current sensor and a mounting limiting mechanism, the solid-sealed pole comprises an insulating shell, a load end conducting rod and a vacuum arc-extinguishing chamber, and the insulating shell is internally provided with a mounting groove. The traveling wave combined current sensor and the zero sequence current sensor are axially embedded in the mounting groove, and the mounting limiting mechanism partially extends into the mounting groove after the sensors are preferentially mounted, so that the mounting groove is divided into a first containing area and a second containing area which are respectively adapted to the traveling wave combined current sensor and the zero sequence current sensor. The traveling wave combined current sensor is preferentially installed close to the vacuum arc-extinguishing chamber through structural limiting, which is beneficial to reducing the loss and reflection of the traveling wave signal, reducing signal distortion and improving fault detection stability.

This gas-insulated switchgear device (100) comprises: a tank (1) in which an insulating gas is sealed and which comprises in the interior thereof a current path connecting a first external conductor (15) that has a DC current input thereto and a second external conductor (16) that outputs the DC current; a first cutoff unit (10) and a second cutoff unit (20) which are installed along the current path in the tank (1); and a resistor (70) which is installed in parallel with the second cutoff unit (20), wherein, in a feed operation, the first cutoff unit (10) alone is first brought into a feed state, and the first cutoff unit (10) and the second cutoff unit (20) are brought into the feed state after a preset period of time has elapsed.

The utility model provides a vacuum circuit breaker operating mechanism, vacuum circuit breaker operating mechanism includes vacuum circuit breaker body, the corner of vacuum circuit breaker body is equipped with the snap -fit assembly and two stable components for adapting the snap -fit assembly of different size protection component usefulness, a plurality of protection components all sleeve the corner of vacuum circuit breaker body, the one end of a plurality of protection components all stably inserts into two stable components, the other end of a plurality of protection components and the top of snap -fit assembly are engaged, and the corner of vacuum circuit breaker body still is equipped with the scale of being convenient for snap -fit assembly and two stable components installation usefulness, the utility model provides vacuum circuit breaker operating mechanism, through setting up snap -fit assembly and two stable components at the corner of vacuum circuit breaker body, protection component can adopt one end stable, one end snap -fit composite connection mode, makes device use effect good, convenient installation and disassembly and high applicability.

The application discloses a structure-reinforced longitudinal magnetic contact and a vacuum arc-extinguishing chamber using the same, and belongs to the technical field of vacuum arc-extinguishing chambers. The structure-reinforced longitudinal magnetic contact comprises a static contact combined structure and a dynamic contact combined structure. The static contact combined structure comprises a static conductive rod, a static excitation contact seat welded at one end of the static conductive rod, a static stainless steel cup seat with a wing piece and a static contact piece. The dynamic contact combined structure comprises a dynamic conductive rod, a dynamic excitation contact seat welded at one end of the dynamic conductive rod, a dynamic stainless steel cup seat with a wing piece and a dynamic contact piece. The wing piece structure attached to the dynamic and static stainless steel cup seats is matched with the slotted gap of the dynamic and static excitation contact seats, and is installed in the longitudinal magnetic slotted gap to play a supporting role. The surfaces of the dynamic and static stainless steel cup seats and the attached wing pieces are coated with an insulating layer, and the electrical performance of the original contact is not affected. On the basis of meeting the insulation, current flow and excitation design of the contact, the mechanical strength of the contact is greatly reinforced.

The invention relates to a vacuum interrupter (1) for switching high voltages, said vacuum interrupter comprising: at least one enclosure (2); at least one fixed contact piece (3) which has a contact plate (5) and a contact bolt (6); and at least one movable contact piece (4) which has a contact plate (5) and a contact bolt (6). The at least one enclosure (2) comprises at least one ceramic segment (7) and a metallic switching chamber (8). The contact bolt (6) of the at least one movable contact piece (4) is guided into the at least one enclosure (2) via at least one bellows (9). The at least one bellows (9) is at least partially spatially enclosed by the metallic switching chamber (8). The arrangement (12) according to the invention comprising a vacuum interrupter (1) has a metal tank housing and / or an insulator housing (13) in which the vacuum interrupter (1) is arranged, in particular filled with clean air as the insulating gas (14).

The present invention relates to a high-voltage power switch (1) having: - a first circuit breaker unit (7) electrically connected to at least two high-voltage terminals, the first circuit breaker unit being configured to establish an electrical connection between at least two high-voltage terminals according to a mechanical switching operation, for which the first circuit breaker unit (7) has a movably disposed first switch contact (11), characterized in that: - a first coupling drive (16) is provided, the first coupling drive being mechanically coupled to the movable first switch contact (11) of the first circuit breaker unit (7), thereby the mechanical switching operation of a drive unit (15) mechanically coupled to the first coupling drive (16) can be transmitted to the movable first switch contact (11), wherein - the first coupling drive (16) is configured to convert the rotational motion of the drive unit (15) into a translational motion so as to transmit the mechanical switching operation of the drive unit (15) to the movable first switch contact (11), thereby enabling the movable first switch contact (11) to operate. Furthermore, the present invention relates to a high-voltage power switching device (2) and a method.

This reduces the possibility of a decrease in creepage insulation performance due to condensation on the outer surface of the vacuum valve container. [Solution] The circuit breaker (1) comprises a sealed container (21), a switch (20) having a pair of energizing terminals (22), and a housing (30) that houses the switch, and further comprises a sound wave generator (40) inside the housing that irradiates the sealed container with sound waves.

The utility model discloses a kind of equalization electric field fixed sealing pole, comprising: pole body, moving contact, vacuum arc-extinguishing chamber, static contact seat and external component;Along the axial direction of pole body, the middle part is provided with the installation cavity through both ends;Moving contact is arranged in one end of installation cavity;Vacuum arc-extinguishing chamber is arranged in installation cavity;Static contact seat is arranged in installation cavity, and its one end is connected with moving contact, and the other end is connected with the one end of vacuum arc-extinguishing chamber close to moving contact;External component one end is connected in the one end of vacuum arc-extinguishing chamber away from static contact seat, and the other end is arranged in the one end of installation cavity away from moving contact. To solve the discharge problem caused by uneven electric field.

In a switchgear of the embodiment, a transmitting mechanism transmits a driving force of an operating mechanism to a second contact part through a first contact part to make the second contact part approach the first contact part when executing a closing operation and make the second contact part separate from the first contact part when executing an opening operation. The transmitting mechanism has a reversing lever, a connecting link, and a fulcrum lever. A reversing lever one end part is rotatably connected to the second contact part. A reversing lever other end part and a connecting link one end part are rotatably connected. A connecting link other end part is rotatably connected to the first contact part. A fulcrum lever one end part is rotatably connected to an airtight container. A fulcrum lever other end part is rotatably connected to a reversing lever fulcrum part.

The application relates to a vacuum arc-extinguishing chamber and high-voltage power equipment, which can solve the problem of low installation precision of a telescopic guide structure during installation in a vacuum arc-extinguishing chamber. The static conductive rod of the vacuum arc-extinguishing chamber is arranged in a static end cover plate, the dynamic conductive rod is arranged in a dynamic end cover plate, the corrugated pipe assembly comprises a guide mechanism and a corrugated pipe body, the dynamic end cover plate is provided with a first positioning part, one end of the guide mechanism is provided with a first mounting part, the other end of the guide mechanism is provided with a second mounting part, the rod body of the dynamic conductive rod is provided with a second positioning part, the second positioning part comprises an axial positioning part and a circumferential positioning part which are connected with each other, the axial positioning part and the circumferential positioning part are configured as follows: the second mounting part can be assembled in the axial positioning part along the axial direction of the dynamic conductive rod and can rotate around the axial direction of the dynamic conductive rod to abut against and be limited by the circumferential positioning part, and when the second mounting part abuts against and is limited by the circumferential positioning part, the first mounting part and the first positioning part are matched with each other in position.

To provide a circuit breaker which can reduce an external arc space.SOLUTION: A circuit breaker includes a stator 22 having a stationary contact point 22a, a mover 23 having a movable contact point 23a movable when a circuit on a power supply side relative to the stator 22 and a circuit on a load side are connected or interrupted, and an arc-extinguishing chamber 24 having a grid 25 for arc-extinguishing an arc 2 generated at the time of current interruption and an exhaust port 4 for exhausting hot gas generated from the arc 2, wherein a resin structure 5 composed of a resin material is arranged outside the exhaust port 4 and an internal exhaust path 12 of the hot gas is formed, and a metal structure 19 composed of a metal material is arranged on the downstream side of the internal exhaust path 12.SELECTED DRAWING: Figure 2

A method for controlled switching of a switching device is described. In one example, a rate of decrease of a first dielectric strength (RDDS) value and a second RDDS value is determined. Once determined, the first RDDS value is compared to an absolute peak value of a gap voltage. If the first RDDS value is less than the absolute peak value of any one of a plurality of half cycles of the gap voltage, switching of the switching device at a second time can be performed. To this end, the second time is an offset relative to a first time such that the absolute peak value of the gap voltage does not intersect a range defined by the first RDDS value and the second RDDS value.

This application belongs to the field of switch technology, specifically an arc-extinguishing chamber and a circuit breaker or disconnecting switch. The upper part of the arc-extinguishing chamber is divided into multiple independent spaces by a partition structure, which together with the lower arc-extinguishing chamber, forms multiple arc-extinguishing chambers connected in series. Each space has a pressure relief channel connected to the outside. After the circuit breaker or disconnecting switch ignites, the arc moves independently within each partition, preventing the gas in the high-pressure area of ​​the strong magnetic blow-out region from flowing to the low-pressure area of ​​the weak magnetic blow-out region. This effectively promotes the entry of gas into the grid plates (such as the last few grid plates on the moving contact side) in areas with weaker magnetic blow-out force, thereby improving the arc-extinguishing performance of the arc-extinguishing chamber grid plates.

The application provides a closed disconnecting switch with ice breaking function, which comprises a first static contact assembly, a second static contact assembly and a movable contact blade assembly connecting the first static contact assembly and the second static contact assembly. One end of the movable contact blade assembly is rotatably connected with the first static contact assembly, and the other end of the movable contact blade assembly can be separated from or contacted with the second static contact assembly, so as to realize the opening and closing of the disconnecting switch. The closed disconnecting switch with ice breaking function reduces the ice thickness of the joint between the movable contact blade assembly and the first static contact assembly through the sealing design. On the other hand, the opening and closing function is realized by the rotation of the movable contact blade assembly around the first static contact assembly, and the ice at the joint between the first and second insulating housings is cut by the knife edge formed by the edge of the second insulating housing used for cooperating with the first insulating housing, so that the ice breaking capacity is improved.