271results about "Switchgear details" patented technology

The invention relates to a high-service-life low-voltage complete switch cabinet applied to the field of power distribution, a feedback assembly is arranged on a movable mounting plate, a plurality of butt joint grooves with different diameters corresponding to the feedback assembly are formed in a static mounting plate, and in the closing process of a drawer body, the position accuracy of the drawer body can be monitored and fed back in real time through the feedback assembly; when the position of the drawer body deviates, movement of the drawer body can be stopped immediately and early warning can be carried out, so that the movable contact and the static contact are not prone to butt joint dislocation, damage of the movable contact and the static contact is reduced, the service life of the device is prolonged, meanwhile, the position deviation degree of the drawer body can be effectively judged through comparison of actual monitoring data and initial data of the feedback assembly, and the accuracy of the device is improved. Besides, through the arrangement of the image acquisition assembly, image acquisition is performed on the state of the feedback assembly, the position condition of each long rod is obtained, the position deviation degree of the drawer body is further visually and accurately judged, and a more effective data supporting effect is achieved for subsequent inspection of the drawer body.

The invention relates to the technical field of safety protection of power system equipment, in particular to an intelligent safety protection device for a switch cabinet, which comprises a cabinet body, the cabinet body is divided into a four-chamber structure, the upper part of the cabinet body is a bus chamber and is internally provided with a wire row template, the middle part of the cabinet body is a circuit breaker chamber and is connected with the bus chamber through a bus joint end plate, and the lower part of the cabinet body comprises two chambers. The independent sealing structure of the four chambers of the cabinet body is combined with condensation and drying circulation processing of the circulation collection assembly on moisture, moisture permeation among the chambers is effectively avoided, and the risk of insulation degradation is reduced. A humidity sensor monitors humidity distribution of each chamber in real time, triggers a generator to drive fan blades to accelerate airflow circulation and prevent local condensation, and triggers a sound-light alarm when the water level of a collecting pipe exceeds the limit to avoid short circuit caused by overflow of condensate water; the environment sealing assembly is in linkage with the traction rod through the limiting guide frame, an opening of the heat dissipation cover can be rapidly closed when external dust or humidity is too high, an internal circulation mode is switched, external pollution is isolated, and the operation safety of the device is improved.

The application is suitable for the electrical engineering technical field, and provides a high-voltage switch cabinet plum blossom contact contact state evaluation method, device and terminal equipment, the high-voltage switch cabinet plum blossom contact contact state evaluation method comprises the following steps: calculating the temperature rise limit value of the plum blossom contact under the current operating condition according to the equipment operating parameter of the high-voltage switch cabinet;Determine the minimum limit value of the contact pressure of the single contact finger of the plum blossom contact;Calculate the maximum limit value of the contact pressure of the single contact finger of the plum blossom contact;Based on the temperature rise limit value, the minimum limit value and the maximum limit value of the contact pressure of the plum blossom contact, the plum blossom contact contact state evaluation criterion is established.The application utilizes the contact state evaluation criterion, can effectively guide the equipment operation and maintenance personnel to carry out equipment operation and maintenance, and ensures the safe and good operation of the plum blossom contact.

The invention discloses a switch cabinet five-prevention system based on digital real-time monitoring. The switch cabinet five-prevention system comprises a state signal monitoring module, an anti-error logic verification module, a locking driving module, a man-machine interaction module and a communication module. The invention further provides a monitoring method of the switch cabinet five-prevention system based on digital real-time monitoring. The monitoring method comprises the following steps: (1) comprehensive digital sensing; (2) performing real-time logic verification; (3) accurate locking; (4) intelligent prompting; and (5) sharing external data. The five-prevention function is realized by adopting the digital technology, the work division is clear, the cooperative work is realized, the accuracy is high, and the reliability and the stability of the five-prevention system are improved.

The application discloses a kind of on-off mechanism for processing phase-to-phase fault, including two single-pole double-throw switches and a third switch, single-pole double-throw switch includes first arc chamber and second arc chamber, first fixed contact is provided in first arc chamber, second fixed contact is provided in second arc chamber, first composite movable contact is provided between first arc chamber and second arc chamber, first composite movable contact one end is located in first arc chamber, first composite movable contact other end is located in second arc chamber, first composite movable contact is connected with first fixed contact when then is disconnected with second fixed contact, first composite movable contact is connected with second fixed contact when then is disconnected with first fixed contact;Third switch includes third arc chamber, third fixed contact and third movable contact are provided in third arc chamber.The on-off mechanism structure is simple, can realize one fault phase conduction and make another fault phase connect ground or public wire, and it is convenient to be used with existing screen cabinet, with important practical value.

The invention provides an interlocking device for a switch cabinet, the switch cabinet and a method for testing insulation resistance of the switch cabinet, the interlocking device comprises a first switch assembly movably arranged on a handcart chamber, and the first switch assembly is used for opening or closing an operation hole; the program lock assembly is provided with an unlocking key, the program lock assembly is arranged on the handcart chamber, the program lock assembly has an unlocking state and a locking state, when the circuit breaker is located at the test position, the program lock assembly is in the unlocking state so that the unlocking key can be pulled out, and after the unlocking key is pulled out, the program lock assembly is locked. When the circuit breaker is located at the connecting position, the program lock assembly is in a locked state, so that the unlocking key is fixed on the program lock assembly; and the second switch assembly is provided with a lock hole, and the second switch assembly and the program lock assembly share an unlocking key, so that when the circuit breaker is located at the test position and the unlocking key is pulled out, the second switch assembly can open the electricity testing door through the unlocking key.

The invention relates to the technical field of switches, in particular to modular high-low voltage switch equipment which comprises a switch cabinet, a chassis handcart, moving contacts, static contacts, an inner supporting assembly, a pushing assembly and an inner supporting plate, the chassis handcart is installed in the switch cabinet in a sliding mode, and the moving contacts are fixedly installed on the chassis handcart; a plurality of static contacts are installed in the switch cabinet, an inner supporting assembly is arranged in the moving contact, the inner supporting plate is connected with the inner supporting assembly, the pushing assembly and the chassis handcart move in the same direction, when the pushing assembly moves, the inner supporting assembly pushes the inner supporting plate to move, and when the inner supporting plate moves, the contact piece slides on the installation base in a limited mode. When the moving contact is matched with the static contact, the inner supporting plate supports the moving contact open, damage caused by collision between the moving contact and the static contact when the handcart is manually operated to move is avoided, and meanwhile safety accidents caused by electric arcs generated when the moving contact and the static contact are connected are prevented.

The invention relates to the technical field of switch cabinets, in particular to an intelligent power grid high-voltage switch cabinet, a switch cabinet interlocking device and a safe operation method thereof.The intelligent power grid high-voltage switch cabinet is characterized in that a rotating sleeve is rotationally installed in a cabinet body, a supporting rod axially slides in the rotating sleeve, and a limiting mechanism connected with a handcart is arranged on the supporting rod; the elastic pushing mechanism is arranged on the rotating sleeve and the supporting rod, and the elastic pushing mechanism is connected with a static contact; the connecting and disconnecting mechanism is arranged on the rotating sleeve, connected with the elastic pushing mechanism and comprises a moving contact matched with the static contact, the limiting state of the limiting assembly on the handcart can be adjusted through cooperation of the connecting and disconnecting mechanism and the elastic pushing mechanism, when the moving contact and the static contact are connected, the position of the handcart is locked, and the handcart is prevented from being damaged. And when the moving contact is separated from the static contact and the handcart moves, the position of the moving contact is locked so as to ensure that the circuit breaker is in a disconnected state when the handcart moves.

The invention relates to the technical field of switch cabinets, in particular to an intelligent low-voltage switch cabinet which comprises a cabinet body. The execution unit comprises a circuit breaker handcart used for disconnecting the current of the load circuit and a plurality of contactors used for switching the load circuit; the detection unit is used for detecting the instantaneous reduction voltage of the load, the current harmonic phase difference of the phase current signal of the main bus, the current harmonic signal proportion and the environment temperature in the cabinet body; the control unit is used for determining a load protection grade according to the instantaneous reduction voltage of the load, and determining the interval duration of starting the circuit breaker handcart and the contactor in the inrush current impact compensation mode according to the load protection grade and the duration of the instantaneous reduction voltage; the asynchronous action starting mode of the contactors is adjusted according to the harmonic wave phase difference, and the access proportion of the reactive load is adjusted according to the harmonic wave signal proportion and the progressive increase node similarity of the environment temperature in the cabinet body in the time sequence. According to the invention, the load stability is improved.

The utility model relates to a drawer cabinet contact box, relates to contact box technical field, including cabinet shell, fixing mechanism, drawer cabinet, cabinet body and contact box, the cabinet shell is provided with switch cabin, the fixing mechanism includes locking assembly, the locking assembly includes slide rail, second cylinder and limit block, the cabinet body is in sliding connection in the switch cabin, and the limit block is in sliding connection in the switch cabin. The drawer cabinet is arranged on the cabinet body, the contact box is arranged on the cabinet body, the sliding rail is arranged on the cabinet body, a plurality of limiting holes are formed in the sliding rail, a sliding groove is formed in the cabinet shell, the second air cylinder is arranged on the cabinet shell through the sliding groove, and the limiting block is arranged on an output shaft of the second air cylinder. According to the utility model, by adopting the locking assembly in the fixing mechanism, the problem that in the process of maintaining the contact box by the drawer cabinet contact box, the drawer cabinet is in a movable switch state, so that maintenance personnel cannot conveniently maintain the contact box is solved.

The invention discloses a connecting structure and a circuit breaker chassis truck, and relates to the field of circuit breaker chassis trucks. The pushing assembly is connected with the chassis truck and is used for horizontally moving; the swinging assembly is movably arranged on the pushing assembly and used for changing the movement track of the pushing assembly; the push rod is arranged between the swing assembly and the chassis truck; the pushing assembly, the swing assembly and the push rod are connected to the chassis truck to prolong the distance and prevent the internal structure of the chassis truck from being broken. The moving direction of the push rod is the vertical direction, transverse component force cannot be generated, and therefore the service life of the push rod is effectively prolonged.

The invention discloses a vehicle-mounted distribution box, and belongs to the technical field of case cabinets, the vehicle-mounted distribution box comprises a box body and a mounting assembly, the box body comprises a skeleton and a plurality of panels, the skeleton comprises a plurality of detachably connected column beams, and every two adjacent column beams are detachably connected to form a hollow frame structure; each panel is detachably mounted on each end face of the cuboid so as to form an accommodating space in the box body; and at least one panel is provided with a heat dissipation component. The mounting assembly comprises electrical mounting plates, each electrical mounting plate is detachably fixed in the accommodating space, each electrical mounting plate comprises a mounting surface and a wire binding surface, and the mounting surface is provided with a mounting position. And a wire binding frame is arranged on the wire binding surface. The invention provides a vehicle-mounted distribution box, which can meet the use requirements of different vehicle-mounted transportation scenes, can meet the structural strength of the box body, can also facilitate wiring in a cabinet, simplifies the installation form of the box body, and remarkably improves the safety and practicability of the distribution box.

The invention belongs to the technical field of high-voltage cabinet maintenance, and particularly discloses a high-voltage cabinet grounding knife-switch and circuit breaker interlocking device which comprises a high-voltage cabinet closing loop, a rotating shaft, a base, a connecting piece and a circuit breaker track, a grounding knife-switch is connected in series in the high-voltage cabinet closing loop, the rotating shaft is fixedly connected with a connecting rod of the grounding knife-switch, and the rotating shaft is rotationally connected with the base. A spiral shaft is arranged on the rotating shaft, two bearing inner rings are arranged on the rotating shaft, a spring is arranged on each bearing outer ring, the two springs are rotationally connected with a connecting piece, a rolling shaft is arranged on the connecting piece, the rolling shaft is in rolling connection with the surface of the spiral shaft, a position baffle is connected to the connecting piece, a baffle hole is formed in the circuit breaker track, and the baffle hole and the position baffle movably penetrate through the baffle hole; according to the device, the rotating shaft rotates to push the position to move, so that a circuit breaker handcart is prevented from being pushed into a working position, and the problem that a grounding knife-switch can still be rocked into the circuit breaker handcart in a closed state due to the fact that an interlocking device fails or an operator does not strictly execute safety regulations is solved.

A bushing for a metal clad medium voltage switchgear includes a hollow body and a t-off and pin assembly. The hollow body is made from polyamide. The t-off and pin assembly is made from polyamide. A first end of the hollow body is configured to connect to a compartment of a medium voltage switchgear. The t-off and pin assembly is configured to connect to a second end of the hollow body. The t-off and pin assembly is configured to connect to a T-off and pin.

The invention relates to the technical field of test wire storage, and particularly discloses a special tool for preventing a handcart of a switch cabinet of a power distribution system from being pushed by mistake. The handcart element is detachably mounted in the cabinet body element, and metal bottom plates are arranged on the two sides of the handcart element; the metal bottom plate is arranged on the cabinet body element, the telescopic element is arranged on the side wall of the metal bottom plate and slides along the transverse direction of the metal bottom plate, the handcart element is connected with the cabinet body element in a sliding mode through a pulley on a chassis, and a contact on the handcart element is connected with a static contact behind a cabinet body baffle. By introducing a mode of combining a specially designed telescopic baffle block with a corresponding working position, the handcart is ensured to be pushed into a corresponding compartment only when the handcart is in a correct position. The mechanism fundamentally solves the problem of high risk caused by only depending on manual selection and judgment in the traditional method.

The utility model discloses a special copper guide rail which comprises a linear track frame arranged on the inner side wall of a switch cabinet, and the linear track frame comprises a linear track used for supporting a pulley of a handcart, a grounding copper support used for being in contact with a jointing clamp of the handcart, and an anti-warping support. And a space for accommodating a pulley of the handcart is formed between the anti-warping bracket and the linear rail. According to the utility model, the grounding copper bracket and the anti-warping bracket are combined, so that the grounding copper bracket is only arranged in the electrified connection stroke of the handcart and is used for ensuring grounding, and the anti-warping bracket is used for bearing the handcart and performs respective functions, thereby ensuring the effect of sufficient grounding and the supporting strength of the whole guide rail, and improving the safety of the whole guide rail. And meanwhile, the material cost is also saved.

The present invention discloses a switch cabinet drawer side lock hand-pull propulsion mechanism, which is used for the drawer to enter and exit the switch cabinet, wherein the switch cabinet includes a bottom support plate, and the drawer is arranged on the bottom support plate; and further includes a locking assembly, wherein the locking assembly includes an unlocking piece, a locking rod, and a positioning plate arranged on the drawer. The present invention adopts a locking assembly separately arranged on the drawer and the bottom support plate, and sets a plurality of locking points. The drawer position can be accurately locked during the push-in and pull-out action of the drawer, and the locking assembly is independent of the connection structure between the drawer and the switch cabinet, and is not affected by the large deadweight of the drawer, effectively ensuring the service life and the accurate locking position. In combination with the micro switch and the telescopic position display assembly that are precisely set, the position status of the drawer can be accurately marked when any point is locked, so that the user can clearly obtain the current position information, and the user experience is friendly.

The application discloses an intelligent connector quick configuration system for a power cabinet, which comprises a power cabinet body, a front cover fixedly installed on the front side of the power cabinet body, four adaptive holes formed in the front cover, four guide rail structures fixedly installed on the inner walls of the two sides of the power cabinet body, and eight guide rail structures arranged in one-to-one correspondence; four power connectors matched with the four adaptive holes, slide rail structures fixedly arranged on the two sides of the four power connectors and matched with the corresponding guide rail structures; a partition plate fixedly installed in the power cabinet body, four matching holes formed in the partition plate, four notches formed in the two sides of the partition plate, and lock catch structures slidably installed in the eight notches; and four groups of conductive structures installed on the rear inner walls of the power cabinet body. The device upgrades the power cabinet connection operation into an intelligent process of "plug and use", improves the operation efficiency, reduces the push-pull friction and prolongs the service life.

Provided in the present application is a low-voltage cabinet with an assisting function for cable plugging and unplugging, the low-voltage cabinet comprising a first cabinet body, a second cabinet body, a plurality of groups of plugging and unplugging assemblies, a sliding assembly, and adjustment assemblies. Each plugging and unplugging assembly comprises a first sliding structure, a lifting structure, and a clamping structure, wherein the first sliding structure is in transmission connection with the lifting structure; the clamping structure comprises a fixed clamping plate and a movable clamping plate, the fixed clamping plate being in transmission connection with the first sliding structure; and the lifting structure is in transmission connection with the movable clamping plate. The sliding assembly comprises a second sliding structure, a third sliding structure, and a plurality of sliding boxes, wherein the third sliding structure is in transmission connection with the second sliding structure; the plurality of sliding boxes are arranged corresponding to a plurality of plugging and unplugging assemblies in any group of plugging and unplugging assemblies, and the second sliding structure is in transmission connection with the plurality of sliding boxes; a mounting cavity is formed at the top end of each sliding box; and at least part of each movable clamping plate can extend into a mounting cavity. Each adjustment assembly comprises an adjustment structure and an abutting plate, wherein the adjustment structure is in transmission connection with the abutting plate, so as to adjust the distance between the abutting plate and a movable clamping plate in a third direction.

The invention relates to the field of circuit breaker auxiliary equipment, and discloses a positioning mechanism and a lifting type switch handcart, comprising an operating rod which comprises a mounting rack fixedly connected with equipment, a first control rod rotatably connected with the mounting rack, a positioning pin arranged at one end of the mounting rack, and a diameter expanding plate located in the positioning pin, the limiting screw sleeve is in sliding connection with one group of mounting frames, and the limiting screw sleeve is in threaded connection with the first control rod; through the synergistic effect of the expansion type positioning pin driven by the operating rod and the limiting mechanism, double reliable fixing is achieved, and the defects that a traditional single hook is insufficient in constraining force and prone to loosening are thoroughly overcome; and meanwhile, the four sets of independently-controlled lifting mechanisms are matched with visual indication of the bubble parallelism instrument, so that accurate adjustment and judgment of the height and the horizontal state of the handcart are realized, the problems that a traditional handcart is difficult to level and low in butt joint efficiency are solved, and the safety and the efficiency of operation are remarkably improved.

To implement "improvement of space efficiency" or "space saving", etc., by arranging a current sensor in such a manner that a conductor of a vacuum circuit breaker cradle passes the inside of a substantially annular current sensor.SOLUTION: In an arrangement system 1 for arranging a current sensor 3 in a vacuum circuit breaker 2, the substantially annular current sensor 3 is arranged in conductors 2b of at least two lines among conductors 2b of three lines in a cradle 2a of the vacuum circuit breaker 2 in such a manner that the conductors 2b pass the inside of the current sensor 3 including a winding 3b which is wound around a substantially annular core 3a. A mounting part 3c extending outside from an outer peripheral side of the substantially annular current sensor 3 is mounted on an inner wall surface of the cradle 2a or conductive shield parts 4 provided on an inner peripheral side and an outer peripheral side of a winding 3b wound in the substantially annular current sensor 3 may also be grounded. In a board 10 including the arrangement system 1, the vacuum circuit breaker 2 and the current sensor 3 in a board housing 11, a plurality of vacuum circuit breakers 2 is stacked in a vertical direction.SELECTED DRAWING: Figure 1

The invention provides an intelligent temperature control type low-voltage draw-out switch cabinet, which is applied to the technical field of low-voltage draw-out switch cabinets, and is characterized in that the intelligent temperature control type low-voltage draw-out switch cabinet comprises a cabinet body, a wiring cavity for wiring and a plurality of drawer grooves are arranged in the cabinet body, and electrical drawers are assembled in the plurality of drawer grooves in a draw-out manner; the controller is arranged on the cabinet body; the cold air system is controlled by the controller; a first temperature sensor is arranged in the wiring cavity, and a second temperature sensor is arranged in each drawer groove; when the temperature detected by the first temperature sensor and / or the second temperature sensor reaches or exceeds a threshold value, the controller controls the cold air system to supply cold air to the corresponding position; an air outlet is formed in the cabinet body; the intelligent temperature control switch cabinet has the technical effects that intelligent temperature control of different modules in the switch cabinet is realized through partitioned temperature monitoring and directional air supply control, local overheating is effectively prevented, and the service life of electrical components is prolonged.

The application discloses an extracted high-low voltage switch cabinet and relates to the technical field of electrical equipment. The cabinet body is internally provided with an extraction device, a supporting device and a limiting device. The inner wall of the cabinet body is provided with a sliding groove, the front side of the cabinet body is provided with a movable door, the bottom of the cabinet body is provided with universal wheels, and the inside of the cabinet body is provided with an extraction device, a supporting device and a limiting device. The circular rod cooperates with a No.1 spring, a piston block, a fixed cylinder and hydraulic oil to effectively reduce collision, prevent the damage of the receiving plate to the cabinet body, reduce noise, improve the use experience, prolong the service life, and ensure the use safety. The trigger block moves cooperatively with a pressure rod, a sliding block, a sliding groove block, a No.2 spring, a heart-shaped groove, a connecting rod, a buckle and a trigger block to prevent the receiving plate from being completely separated by accident, ensure the use safety, and replace the previous push-pull extraction mode with the pressure rod, the No.2 spring, the sliding groove block, the connecting rod, the buckle, the trigger block and the pressure rod to improve the use speed of the handcart circuit breaker.

The present invention discloses a more responsive dual-shaft quick-opening, high-current valve mechanism. The technical solution employed includes a valve mechanism and a locking mechanism, characterized in that the valve mechanism primarily comprises a base, an upper crank arm, a lower crank arm, an upper valve push rod, a lower valve push rod, an upper rotating shaft, a lower rotating shaft, a driving bent plate, and a torsion spring. The upper and lower rotating shafts are fixed to the front end of the base at intervals, and the upper and lower valve push rods are fixed to the rear ends of the upper and lower crank arms, respectively. The upper and lower crank arms are rotatable about the upper and lower rotating shafts, respectively, and the torsion spring is used to reset the upper crank arm.

The invention relates to the technical field of switch cabinets, and discloses a high-altitude high-voltage switch cabinet which comprises a switch cabinet body, a first partition plate is fixedly connected to the interior of the switch cabinet body, and sliding rails are fixedly connected to the two sides of the top of the first partition plate. The handcart type circuit breaker is pushed in along the sliding rails after being attached to the middles of the two sets of sliding rails, the sliding rails can be driven to move by movement of the handcart type circuit breaker when the handcart type circuit breaker is pushed in, opening and closing of the first sealing baffle and the second sealing baffle are achieved through a series of transmission after the sliding rails move, and when an operator assembles and disassembles the handcart type circuit breaker, the handcart type circuit breaker can be assembled and disassembled conveniently. An operator can be effectively prevented from accidentally touching a live static contact and other parts, electric shock accidents are avoided, dust, small animals and the like can be prevented from entering the circuit breaker after the first sealing baffle and the second sealing baffle seal the jacks, and the problems of insulation performance reduction, part corrosion and the like caused by environmental factors are reduced.

The present invention relates to a monitoring system of a power device, including: a bracket, a bracket terminal formed at a rear side of the bracket; a circuit breaker, mechanically and electrically connected or disconnected with the bracket terminal; at least one or more position detection devices, installed inside the circuit breaker and detecting a position of a circuit breaker body in real time; and a display part, outputting a movement characteristic of the circuit breaker body detected by the position detection devices.

The present invention relates to the technical field of switch cabinets, and discloses an electric trolley for switch cabinets, comprising a frame, wherein a first mounting plate is fixedly connected to the top of the frame, a first slide is provided on one side of the first mounting plate, a first slider is slidably connected in the first slide, a mounting frame is fixedly connected to one side of the first slider, a first threaded rod is rotatably inserted into the top of the first mounting plate, the first threaded rod is threadedly inserted into the first slider, a plurality of insulators are fixedly connected to one side of the mounting frame, an insulating cover is fixedly connected to the other end of the insulator, a guide post is inserted into the insulator, the guide post passes through the insulating cover, a contact arm is fixedly connected to the other end of the insulating cover, the contact arm is electrically connected to the guide post, and a plum blossom contact is fixedly connected to the other end of the contact arm. The present invention can adjust the height of the plum blossom contact, thereby facilitating connection with busbar contacts of different heights, thereby accurately completing docking with the busbar contact.

This invention provides a driving device for a centrally located switchgear valve baffle, comprising an actuating mechanism, an active mechanism, a transmission mechanism, and a guiding mechanism. The actuating mechanism is located on the lower front side of the switchgear truck for the operator to apply force to drive the switchgear truck into the trolley compartment. The active mechanism is located on the left and right rear sides of the switchgear truck for applying force to the transmission mechanism during the movement of the switchgear truck into the trolley compartment. The transmission mechanism includes an upper transmission mechanism and a lower transmission mechanism located on the left and right side plates of the trolley compartment. The upper and lower transmission mechanisms are adapted to drive the upper and lower valve baffles respectively to open under the force applied by the active mechanism, thereby exposing the high-voltage stationary contacts. The guiding mechanism is located on the rear side plate of the trolley compartment for vertically guiding the movement of the upper and lower valve baffles. This application features a clever and simple structural design that can simultaneously drive both sides of the valve baffle, making the opening and closing action of the valve baffle more flexible, stable, and reliable, effectively avoiding valve baffle jamming.

The invention discloses a high-voltage metal-enclosed switchgear which comprises a cabinet body made of metal plates, the interior of the cabinet body is divided into a bus chamber for placing buses, a circuit breaker chamber for placing circuit breakers and a cable chamber for placing cables from top to bottom, and a vertical public pressure relief channel is arranged on the right side of the cabinet body. The center line of each corresponding upper contact box and the center line of each corresponding lower contact box are located on the same vertical axis, an upper contact arm and a lower contact arm of the circuit breaker are also located on the vertical axis and stretch out and draw back up and down, and the upper contact arm and the lower contact arm penetrate through the upper valve and the lower valve respectively. And the upper static contact and the lower static contact are respectively connected to form a conductive loop. According to the invention, the size is greatly reduced, the manufacturing cost is reduced, the current-carrying capability is improved, the discharge of the contact arm to the ground and air is effectively prevented, and the safety is better ensured.

The invention relates to the technical field of low-voltage reactive compensation, in particular to a low-voltage reactive compensation drawer type device for an electric power system, which comprises a cabinet body, a main bus and a plurality of drawer units, and is characterized in that a drawer module comprises a drawer box, and a capacitor, a combination switch, a high-voltage fuse and a moving contact plug-in which are arranged in the drawer box and are electrically connected in series in sequence; when the drawer box is pushed into the cabinet body, the moving contact plug-in is electrically connected with the main bus, the cabinet body is provided with an intelligent compensation controller, the drawer box is provided with a secondary plug-in, the intelligent compensation controller and the secondary plug-in are connected with the combination switch through secondary wires and transmit control and detection signals, and when the drawer box is pushed into the cabinet body, the secondary plug-in is electrically communicated with the intelligent compensation controller. The device is connected with the intelligent compensation controller on the cabinet body through the secondary plug-in of the drawer module, parameters such as voltage, current and power factors of a power grid are monitored in real time, reactive power is accurately compensated according to the parameters, and the problem that an existing reactive power compensation device is lack of intelligent control is solved.