147results about "Switchgear details" patented technology

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 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 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.

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 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.

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 provides a passive high-voltage live display locking device and a distribution network electricity verification locking anti-error system. The passive high-voltage live-line display locking device comprises N live-line indication circuits and a controller, wherein each phase of circuit is integrated with a rectification circuit, a signal driving circuit, and a light emitting diode and a first optical coupler which are connected in series. The signal driving circuit controls the assembly to supply power according to the direct-current signal, and the controller determines the live-line state of the high-voltage equipment by collecting the frequency of the pulse signal output by the first optocoupler. As the light-emitting diode is connected in series with the first optocoupler, the optical signal frequency is completely synchronous with the pulse signal frequency, and the consistency of the physical indication of the light-emitting diode and the digital judgment result of the controller is ensured. According to the device, the defect that display and judgment are inconsistent due to discreteness of components of a traditional device is effectively overcome, the hidden danger of misoperation is eliminated, high-reliability electricity testing locking guarantee is provided for an intelligent power distribution system, and operation and maintenance safety is remarkably improved.

The present invention relates to a current transformer and a switchgear comprising the same, the current transformer comprising a current transformer body (1) that is formed by casting; a current transforming assembly (2) that is embedded in the current transformer body; and a primary conductor (3), the primary conductor (3) comprising a first end (31) and a second end (32), wherein one of the first end and second end serves as an input terminal of the current transformer, and the other serves as an output terminal of the current transformer, and wherein the first end is also constructed as a stationary contact of the current transformer. Since the terminal of the current transformer serves as a stationary contact, a separate stationary contact and a separate conductor connecting the current transformer and the stationary contact in the prior art are omitted, reducing the number of components and reducing costs. The current transformer also has an integrated temperature measuring device, which is able to more accurately measure the temperature of a movable contact that contacts the stationary contact and an electrical component where the movable contact is located, and is furthermore able to monitor the temperature of an external component, such as a copper busbar or a cable on a busbar side.

The application discloses a switch room interlocking mechanism and a ground knife interlocking mechanism and belongs to the field of power distribution equipment. The switch room interlocking mechanism comprises a contactor cabinet and a first interlocking mechanism arranged in the shell. The first interlocking mechanism comprises a ground knife operation shaft and a linkage shaft in mesh transmission with the end bevel gear of the ground knife operation shaft. The linkage shaft is fixed with a linkage plate one in a triangular structure. The linkage plate one serves as a transmission center and drives the second and third interlocking mechanisms through a connecting rod assembly to convert the state of the ground switch into mechanical locking of front and rear doors. The application further comprises a locking assembly two. The locking assembly two directly drives a locking rod to deflect and rise to block a handcart by using the movement of a ground knife operation hole shielding plate. The switch room interlocking mechanism and the ground knife interlocking mechanism are divided by a bevel gear rigid reversing and a triangular linkage plate. The forced synchronization of the ground switch and the locking of front and rear cabinet doors is realized. The active linkage of the shielding plate and the locking rod forms a safe logic of operation and locking. The safety of the equipment is improved.

The invention belongs to the technical field of electrical equipment, and particularly discloses a switch cabinet handcart push-pull device and a handcart low-impact design method.The switch cabinet handcart push-pull device comprises a pick-up trolley, a supporting platform, a push-pull unit and a power unit.The supporting platform is supported at the top of the pick-up trolley; the push-pull unit comprises a suction cup assembly and a sliding rod, the suction cup assembly is connected with one end of the sliding rod, and the sliding rod is in horizontal sliding fit with the supporting platform; the power unit can drive the sliding rod to move horizontally. The invention discloses a low-impact design method for a switch cabinet handcart. The method is used for determining optimal working parameters of a power unit, a buffer unit and a suction cup assembly in a switch cabinet handcart push-pull device. According to the invention, the problem that pulling-out and pulling-in of the handcart switch are strenuous can be solved.

A technique for monitoring a control cabinet (200) is described. One aspect of the technique concerns a device (100) in the control cabinet (200). The device (100) comprises a data acquisition module (102) which acquires at least two data values ​​from sensor data of the control cabinet (200); a parameterization module (104) which, during a learning phase of the device (100), sets at least one parameter of a classification of nominal states of the control cabinet (200) based on the acquired data values ​​of the sensor data; and a monitoring module (106) which, during a monitoring phase of the device (100), determines, based on the acquired data values ​​of the sensor data, whether a current state of the control cabinet (200) is a nominal state according to the classification dependent on the at least one set parameter.

A hinge-protected main circuit connector for unit compartment incoming lines, and a unit assembly. The main circuit connector comprises: an insulating housing, the front end of which is provided with a front socket; and a hinge protection structure, which is mounted at the front end of the insulating housing and closes the front socket. When a copper bar of a unit main circuit moving connector is inserted into hinges, the hinges are driven to open; and when the unit main circuit moving connector is withdrawn, the hinges automatically close. The hinge-protected main circuit connector for unit compartment incoming lines is applied to an incoming line side of a unit compartment, thereby enabling the protection level of the unit compartment incoming lines to be improved.

The invention discloses a high-voltage switch cabinet convenient for handcart maintenance, which belongs to the technical field of switch cabinets and comprises a switch cabinet body, a movable handcart is arranged in a handcart chamber in the switch cabinet body, a static contact is fixed on the inner wall of the handcart chamber, and a moving contact is arranged on the handcart at a position corresponding to the static contact; the closing driving unit is arranged in the handcart chamber in a sliding manner; the polishing unit is rotationally mounted in the handcart chamber and is in sliding connection with the moving contact; and the rotating unit is rotationally connected to the end part of the polishing unit and rotationally connected with the surface of the static contact. By arranging the polishing unit and the rotating unit, the moving contact and the static contact can be automatically polished and cleaned in the switching-on process of the handcart, oxide layers and impurities on the surfaces of the contacts are removed, contact resistance is reduced, contact heating faults are reduced, and the service life of a switch cabinet is prolonged; by arranging the buffer unit, the rigid collision between the moving contact and the static contact can be avoided, the stability of the contact pressure of the contacts is maintained, and the reliability of circuit conduction is improved.

The utility model discloses a drawer type circuit breaker side plate transmission structure which comprises a side plate (1), a guide rail (2) is arranged on the side plate (1), a sliding plate (3) is installed on the guide rail (2) and can slide back and forth under the action of external force, and a first transmission gear (4) is installed on the side plate (1) and located outside the guide rail (2). The first transmission gear (4) is meshed with a second transmission gear (5) arranged on the sliding plate (3), transmission teeth (301) are arranged on the sliding plate (3), and the first transmission gear (4) is in meshed transmission with the second transmission gear (5) and is also meshed with the transmission teeth (301) to drive the sliding plate (3) to move at the same time. According to the whole transmission structure, the number of transmission parts on the side plates is reduced through rearrangement and design of the transmission structure on the side plates, the transmission structure is more compact, the size is reduced, and transmission is stable and reliable.

The invention provides a draw-out type high-low voltage power distribution cabinet, which comprises a power distribution cabinet shell, a draw-out type power distribution cabinet, a limiting semi-sphere, a power distribution cabinet driving mechanism, a displacement connecting mechanism, a power distribution cabinet sealing mechanism, a PLC (Programmable Logic Controller) and a smoke sensor, the upper surface of the draw-out type power distribution cabinet is provided with a power distribution cabinet sealing mechanism, and the design solves the problem that an original high-low voltage power distribution cabinet needs a worker to quickly draw out the high-low voltage power distribution cabinet for fire extinguishing, the rear end in the power distribution cabinet shell is provided with a displacement driving motor, and the two sides in the power distribution cabinet shell are respectively provided with a driving screw. Each driving screw is connected with the power distribution cabinet shell through a screw support, the driving screws are connected with the screw supports through bearings, the problem that an original draw-out type power distribution cabinet needs manual drawing to achieve power-on and power-off of the power distribution cabinet is solved, and compared with the prior art, the draw-out type power distribution cabinet is reasonable in structure, convenient to combine and install, wide in application range and high in reliability.

The utility model provides a drawer type power distribution cabinet. The drawer type power distribution cabinet comprises a cabinet body; the bus assembly extends in the height direction of the cabinet body and is arranged in the cabinet body, the bus assembly comprises a first surrounding plate, a top plate, a bottom plate and a bus, the top plate and the bottom plate are both connected with the first surrounding plate and form an accommodating cavity with the first surrounding plate, and the top plate is provided with a bus mounting part communicated with the accommodating cavity; at least part of the bus passes through the bus mounting part and then extends into the accommodating cavity; wherein the bus mounting part is a through hole, and the passing area of the through hole can be adjusted. The drawer-type power distribution cabinet effectively solves the problem that in the prior art, metal foreign matters are easy to fall into the upper end seal of the vertical channel in the drawer-type power distribution cabinet.

This utility model relates to the field of low-voltage switchgear technology, specifically an interlocking mechanism for a movable drawer unit and the movable drawer unit itself. The interlocking mechanism includes a position interlocking mechanism, comprising a position interlocking drive plate and a movable portion position locking plate. The movable portion position locking plate is located on the back of the movable drawer unit and is fixed to the movable portion. The position interlocking drive plate is positioned by embedding a positioning element into a corresponding position positioning hole on the movable portion position locking plate. The fixed and movable portions of the movable drawer unit are interlocked through the aforementioned interlocking mechanism. The advantages are: the interlocking mechanism has complete functions, low structural cost, small space occupation, and enables unit miniaturization; the use of T-shaped sliding columns and guide rails for push-guided limiting reduces the precision requirements of sheet metal parts processing, lowers costs, solves push-up failures, controls the upward tilting of the rear of the movable portion, and also increases the internal width of the unit.

A method for indicating a position of a circuit breaker in a switchgear and a system thereof are disclosed. The method includes aspects of determining a position of a follower based on movement of the circuit breaker between a test position and an operating position of the circuit breaker in a circuit breaker compartment of the switchgear. The method also includes aspects of operating an indicator to indicate at least one of the test position and the operating position of the circuit breaker based on the determined position of the follower.

The present invention discloses an arrangement for controlling temperature in a switchgear using thermoelectric devices, the arrangement comprises, one or more contacts of a switchgear panel (100) and at least one thermoelectric device (107). The one or more contacts of the switchgear panel (100) transfers heat generated in the switchgear. The at least one thermoelectric device (107) comprising a first base and second base. The at least one thermoelectric device (107) is mounted suitably on each of the one or more contacts of the switchgear panel (100) to remove heat from the one or more contacts of the switchgear panel (100) by creating temperature difference on the first base and second base.

The utility model discloses a drawer type soft starting device which comprises a drawer cabinet body, and an integrated soft starting integral component is detachably arranged in the drawer cabinet body. The integrated soft start integral component comprises a soft start assembly used for soft start of the motor, a contactor assembly used for bypassing the soft start assembly to be connected with the motor after soft start of the motor, and an air switch assembly used for providing overload and short circuit protection. The soft starting assembly, the contactor assembly and the air switch assembly are fixedly connected and electrically connected into a whole. According to the utility model, through the arrangement of the integrated soft starting integral component, the whole soft starting device can be produced, assembled and independently tested before being put into the drawer, so that flow line production is realized, the production efficiency is improved, and the integrated soft starting integral component can be integrally taken out for operation in later overhaul and maintenance; therefore, the maintenance is more convenient, and the maintenance time and cost are reduced.

The invention relates to the technical field of high-voltage switch cabinets, and discloses a removable high-voltage switch cabinet with a modular microcomputer protection device, the removable high-voltage switch cabinet comprises a cabinet body for mounting a relay and a cleaning mechanism, the cleaning mechanism comprises a plurality of dust removal assemblies, and each dust removal assembly comprises an extension pipe and a fixed pipe; the suction assembly is communicated with the plurality of dust removal assemblies through the conveying assembly, and the suction assembly is extruded, so that suction force is generated at the extension pipe to suck and remove impurities at the relay contact; when the relay is installed in a cabinet handcart chamber, the handcart tray is pushed to enable the relay to move, the suction assembly is extruded to generate suction force, the suction force is transmitted to the dust removal assembly through the conveying assembly, negative pressure is formed at the positions of the extension pipe and the fixed pipe, and impurities such as dust and metal chippings at the position of a relay contact are accurately sucked away. And the extension pipe and the fixed pipe can synchronously move along with the relay contact, so that the effect that the contact end of the relay contact is cleaned firstly and then the relay contact is adjusted to be cleaned is achieved.

Embodiments of the present disclosure provide an electrical cabinet. The electrical cabinet includes a frame; a mating assembly disposed on the frame; a drawer assembly including a fixing part disposed on the frame and a movable part connected to the fixing part, wherein the movable part is pushed in or pulled out relative to the frame; and a counter connected to the movable part and including a rotating arm adapted to be driven by the mating assembly to switch between an initial position and a counting position during a process of the movable part being pushed in relative to the frame.