85results about "Switchgear shutters/guards" patented technology

The invention relates to the technical field of GIS switch cabinets, and discloses a GIS switch cabinet with a stable safety device, the GIS switch cabinet comprises a switch cabinet, the inner cavity of the switch cabinet is provided with a circuit breaker mounting bin, the inner cavity of the switch cabinet is also provided with a static contact, and the bottom of the circuit breaker mounting bin is fixedly provided with a slide rail component. And a slidable handcart component is arranged on the inner wall of the slide rail component. A second fixing plate, a rotating frame, a rotating wheel and a pull rod are wrapped through a protection plate, so that personnel cannot directly make contact with the structure, and the problem that when no circuit breaker body exists in the circuit breaker installation bin, personnel can open and close a valve assembly at will, and consequently electric shock accidents are increased is solved. By limiting the two groups of rotating frames, the two groups of rotating frames are kept in a locked state, so that the problem that the two groups of rotating frames relatively move due to external force when the top of the track does not bear the circuit breaker main body through the handcart component is solved, and the safety of the valve component is further improved.

The present disclosure relates to a shutter assembly and a switchboard comprising same, and provides a shutter assembly comprising: a shutter plate arranged to cover an outer terminal arranged on the rear surface of a switchboard case; and a shutter driving unit which is connected to one side of the shutter plate and which moves the shutter plate in the left and right directions, wherein the shutter driving unit has at least a portion pressed and rotated by means of a circuit breaker according to the entry of the circuit breaker into the switchboard case, so that the outer terminal covered by the shutter plate is exposed toward the inside of the switchboard, and thus the shutter plate is moved.

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 nuclear power plant safety protection equipment, and discloses a movable equipment fixing device which comprises a device body, an upper moving unit is installed on the device body, an upper positioning insertion hole is formed in the upper moving unit, a positioning pin is arranged on movable equipment in a matched mode, and the positioning pin is suitable for being matched with the upper positioning insertion hole to be inserted and positioned; the lower fixing unit is fixedly installed on the device body, a lower electromagnetic adsorption assembly is installed on the lower fixing unit, and the movable equipment is suitable for being adsorbed and fixed to the electromagnetic adsorption assembly; and the bottom plate fixing unit is fixedly installed at the bottom of the device body, a wheel fixing and limiting mechanism is arranged in the bottom plate fixing unit, and wheels of the movable equipment are suitable for being matched with the wheel fixing and limiting mechanism for limiting. According to the movable equipment fixing device, through triple synergistic effects of mechanical positioning, electromagnetic adsorption and wheel limiting, sliding, shaking or toppling of the movable equipment in an earthquake can be effectively restrained, and the safety and stability of the equipment are improved.

A handcart type high-voltage switch cabinet disclosed by the present invention comprises a cabinet body, a driving assembly and a baffle plate, the cabinet body is fixedly provided with a guide rod, the guide rod is sleeved with a lifting shell, the lifting shell is slidably provided with a sliding plate, and the baffle plate is connected with the sliding plate; a rotating pin is rotationally arranged on the lifting shell, a spiral groove is formed in the rotating pin, a protruding block is fixedly arranged on the sliding plate, and the protruding block is arranged in the spiral groove in a sliding mode; by arranging a rotating pin, before a baffle slides upwards, a connecting shaft slides in a connecting hole, the rotating pin is driven to rotate through a rotating pipe and a rotating ring, a sliding plate drives the baffle to slide towards the outer side through cooperation of a spiral groove and a protruding block, the baffle is separated from a shielding position, friction between the baffle and the cabinet body in the sliding process is avoided, and the cabinet body is protected from being damaged. And then the connecting shaft abuts against the top of the connecting hole, the lifting shell and the baffle are driven to move upwards, the static contact is exposed, a moving contact on the circuit breaker can be conveniently connected with the static contact in an inserted mode, and operation portability is improved.

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 invention discloses a valve structure of a handcart-type circuit breaker, and the structure comprises a fixed part which is provided with a plurality of through holes; the movable part is linked with the circuit breaker handcart; the plurality of through holes and the movable parts are arranged in two groups, and the two groups of movable parts are arranged in an upper layer and a lower layer; the forward or reverse movement of the circuit breaker handcart is converted into the movement of the two groups of moving parts through the linkage assembly, and the two groups of moving parts correspondingly open or close the through hole so as to expose or shield the circuit breaker static contact in the cavity shell. The invention also discloses a handcart type circuit breaker. According to the handcart type circuit breaker and the valve structure thereof, it is ensured that the movable part and the circuit breaker handcart can move synchronously, the through holes are accurately opened and closed, and an electric shock accident caused by mistakenly touching a static contact by a person is prevented; the structure is simple and reliable, and long-term stable operation of equipment can be ensured.

The utility model relates to the technical field of complete switch equipment, in particular to a hinge protection type main circuit connector for incoming lines of a unit chamber, which comprises an insulating shell, a main circuit board, a main circuit board and a main circuit board, and is characterized in that the front end of the insulating shell is provided with a front socket; and the hinge protection structure is arranged at the front end of the insulating shell and seals the front jack. When the unit pushes the copper bar of the unit main circuit movable plug-in to be inserted into the hinge, the hinge is driven to be opened, the unit main circuit movable plug-in is withdrawn, and the hinge is automatically closed. According to the hinge protection type main circuit connector for the incoming line of the unit room, the inter-phase center of the connector corresponds to the inter-phase center of the unit main circuit movable plug-in and the circuit breaker, a main circuit is not in lap joint connection, the structure of the circuit breaker is not changed, and the problems of application feasibility and universality are solved; the hinge protection type main circuit connector for the incoming line of the unit room is applied to the incoming line side of the unit room, so that the protection grade IP40 of the incoming line of the unit room reaches the high standard.

Locking device (100) for a switchgear compartment (599) with a circuit breaker (999), wherein the locking device (100) comprises a main locking lever (200) which can be in at least one locking position and in a trip prevention position, characterized in that the main locking lever (200) comprises at least two legs (210; 220), wherein the first leg (210) in the locking position blocks the transition of the locking device (100) to the trip prevention position if the circuit breaker (999) is in the OFF position, and wherein the second leg (220) in the switch-off prevention position blocks the transition of the circuit breaker (999) to the OFF position.

Switchgear (1) comprising a first compartment (200) accommodating a drawer-type VMC (5) with a vacuum contactor (55) and a power fuse (12), and a second compartment (300, 400) accommodating a main circuit (30, 40), the switchgear (1) being adapted to perform a connection / disconnection between the vacuum contactor (55) and the main circuit (30, 40) by a pulling operation, the switchgear (1) comprising: a fixing frame (4) separating the first compartment (200) and the second compartment (300, 400) from each other and having two bushings (9a, 9b) arranged in a perpendicular direction with respect to a pulling direction of the vacuum contactor (55) for connecting terminals (51, 52) of the vacuum contactor (55) and terminals (7a, 8a) of the main circuit (30, 40); and Closing means (10a, 10b) for closing the two passages (9a, 9b) at a time of separation, wherein one end of the power fuse (12) is located between the two bushings (9a, 9b) in a position ensuring insulation from the closed closure devices (10a, 10b) in a separated state, and another end of the power fuse (12) is located above the vacuum contactor (55), so that the power fuse (12) is mounted so that its longitudinal direction has predetermined angles with respect to the pulling direction and the vertical direction.

The present discussion relates to a bus bar for preventing unintentional contact. One example includes an immersion tank and a protected automated busbar assembly located in the immersion tank. A protected automatic busbar assembly may include a conductor and a deployable protector biased on the conductor. An example may include a computer including a device controller and an electrical connector. The device controller may be configured to overcome the bias voltage and transition the deployable protector away from the conductor to allow the conductor to be engaged by the electrical connector to couple the computer to the conductor of the protected automatic busbar assembly.

The utility model discloses a door interlocking device which comprises an interlocking rod, one end of the interlocking rod is provided with a hook portion used for locking the closing state of a handcart chamber door, and the handcart chamber door is provided with an interlocking bolt used for being connected with the hook portion in a clamped mode. The other end of the interlocking rod is arranged to be a transmission end used for being connected with a valve mechanism in a handcart chamber in a transmission mode, and an interlocking axis used for being fixedly connected with the handcart chamber is arranged in the middle of the interlocking rod in a hinged mode. According to the utility model, a linkage structure of the interlocking rod and the valve mechanism is arranged, when the handcart chamber door is operated to be closed to enable the handcart to be rocked into a working position, the handcart chamber door is synchronously locked through the interlocking rod, so that an operator cannot open the handcart chamber door without additional active locking operation of the operator, and the electrical five-prevention requirement is met.

The invention relates to the technical field of power supply equipment, in particular to a high-voltage movable switch cabinet which comprises a vertically arranged frame body, and box plates are fixedly connected to the left side and the right side of the frame body through bolts; a control chamber is arranged at the upper end of the front part of the frame body; the upper end of the rear part is provided with a wire inlet chamber in which a bus assembly is arranged; the lower end of the front part is provided with a circuit breaking chamber which is internally provided with a circuit breaking assembly and a valve assembly. A cable chamber is arranged at the lower end of the rear part and is internally provided with a grounding assembly and an on-off assembly; a linkage assembly is further arranged in the frame body, and the linkage assembly is used for achieving action linkage of the circuit breaking assembly and the on-off assembly so as to ensure that the circuit breaking assembly can be pulled out in the power-off state. The grounding assembly comprises a grounding switch, and the grounding switch achieves the on-off operation with the wire bar through the switching-on and switching-off operation of the grounding switch. The on-off assembly comprises a pull rod, and the pull rod pulls the grounding switch to perform rotary opening and closing operation.

A locking mechanism (20) for a control center (100) comprises a locking cover (8) attached to a partition plate (7) that separates a busbar chamber (5) from a functional unit chamber (4) in which a functional unit (1) to be mounted is arranged for the control center.The closure cover (8) has a front projection (9) on its base, which projects forward in a forward direction, wherein the functional unit (1) has a spacer (11) on its base surface and, when the functional unit (1) is inserted into the functional unit chamber (4), the front projection (9) of the closure cover (8) is pressed by the spacer (11) provided on the functional unit (1) such that the closure cover (8) moves in a latching manner to open simultaneously with the insertion of the functional unit, thereby enabling a connection between the busbar (6) and a terminal (2) of the functional unit (1).

The present invention relates to the technical field of valve structures, and discloses a switch cabinet and a valve locking device, comprising a valve structure and a locking structure. The valve structure comprises a valve body that is longitudinally movably assembled on the switch cabinet. The locking structure comprises a locking plate that is movably assembled in the switch cabinet, a transmission shaft that is transmission-connected to the locking plate, and a driving handle that drives the transmission shaft. The valve body is provided with a bayonet, and the locking plate is provided with a buckle that engages with the bayonet. During its movement, the locking plate has a locking position in which the buckle engages with the bayonet to lock the valve body and an unlocking position in which the buckle disengages from the bayonet to unlock the valve body. An operator drives the transmission shaft to move in the switch cabinet through the driving handle, and the transmission shaft drives the locking plate to move in the switch cabinet. The buckle of the locking plate engages with the buckle on the valve body, thereby locking the valve body and locking the position of the valve body. This ensures the stability of the valve in its working state and prevents sliding or falling off, thereby improving the reliability of the valve and the switch cabinet.

The utility model provides a drawer type switch cabinet protection device which is applied to a drawer type switch cabinet, a top plate of the drawer type switch cabinet is provided with an opening, and the protection device comprises a cover plate, a telescopic mechanism, a flexible pipe, a sensor and a controller; the cover plate is positioned above the opening; the outer contour of the cover plate is larger than the aperture of the opening; one end of the telescopic mechanism telescopic assembly is connected with the cover plate, and the other end is connected with the top plate; the flexible pipe is arranged between the cover plate and the top plate and is buckled in the opening; a plurality of through holes are formed in the side wall of the flexible pipe; the sensor is used for detecting whether a target exists around the top plate; and the controller is electrically connected with the telescopic mechanism and the sensor. According to the scheme, the flexible pipe with the cover opened with the hole is arranged, and the through hole is formed in the flexible pipe, so that when the sensor detects that a target object exists around the top plate, the flexible pipe can be driven to contract through the telescopic mechanism, the actual hole diameter of the through hole is reduced, and the target object is prevented from entering the drawer type switch cabinet. Therefore, the working reliability of the drawer type switch cabinet can be improved.

The drawer cabinet instrument panel convenient to maintain and install comprises a cabinet body, a cabinet door is hinged to one side of the front face of the cabinet body, an installation cavity is formed in one end of the cabinet door, grooves are formed in the two ends of one side of the inner wall of the installation cavity, and reset springs are fixedly connected to the inner walls of the two grooves. A displacement plate is fixedly connected to one ends of the two reset springs, a plurality of locking rods are fixedly connected to the surface of the displacement plate, an electromagnet is fixedly embedded in the middle of one side of the inner wall of the mounting cavity, an iron sheet is fixedly embedded in the middle of the displacement plate, and a plurality of locking grooves are formed in one end of one side of the inner wall of the cabinet body; according to the drawer cabinet instrument panel convenient to overhaul and install, the instrument panel is convenient to open, internal instruments are convenient to overhaul and install, maintenance is convenient, the instrument installation position is provided with a buffering and damping structure, damage of external impact to the instruments can be reduced, and the drawer cabinet instrument panel is safer.

A protective barrier system is provided to control access to conductors of a bus system of a distribution board. The system includes an electrically insulating or non-conductive barrier for preventing access to conductors of the bus system. The barrier may include a plurality of removable baffles arranged side-by-side on the open side of the bus system to prevent installation of circuit breakers on conductors of the bus system and provide touch / finger safety protection. The system also includes a barrier interlock for the bus system. The barrier interlock may include a lock for the shutter. The lock is operable between a locked position and an unlocked position. The lock locks the shutter in the locked position to prevent the shutter from being removed, or unlocks or releases the shutter in the unlocked position, thereby enabling removal of the shutter and connection of the circuit breaker to the conductor of the bus system.

The present disclosure relates to an electrical switching device for low-voltage or medium-voltage applications, which comprises a cabinet, a draw-out switchgear, and a shutter assembly movable along a reference movement plane. The shutter assembly comprises a first shutter panel and a second shutter panel which are at least partially made of a conductive material and are spaced apart from each other. The shutter assembly comprises one or more elongated connecting elements which mechanically connect the first shutter panel and the second shutter panel by means of rigid linkages such that the first shutter panel and the second shutter panel move together along the reference movement plane while maintaining their relative positions. Each connecting element is at least partially made of a conductive material and has an elongated blunt shape including a rounded edge.

The utility model belongs to the technical field of switch cabinets, and discloses a fuse handcart and a switch cabinet. The fuse handcart comprises a box body, wherein a first insulator, a lightning arrester, a second insulator and a discharge counter are sequentially arranged on the box body from top to bottom at intervals; the first insulator is provided with a first contact arm, the second insulator is provided with a second contact arm, a fuse is arranged between the first contact arm and the second contact arm, one end of the lightning arrester is connected with the first contact arm, and the other end of the lightning arrester is conductively connected with the discharge counter. When the fuse handcart is designed, the first insulator and the second insulator are arranged at intervals and installed at corresponding positions of the box body, the lightning arrester is installed between the first insulator and the second insulator, and the discharge counter is arranged at a position, close to the bottom, of the box body. According to the fuse handcart, the mode that a box body is directly heightened at the top and a lightning arrester and a discharge counter are arranged at the top in the prior art is replaced, the overall fuse handcart box body is prevented from being too high, the structure is simple, arrangement is compact, and cost can be effectively reduced.

The invention discloses a high-voltage vacuum power distribution device with a grounding switch. According to the technical scheme, the high-voltage circuit breaker is movably arranged in the main box body through a chassis truck, the box cover and the junction box are arranged on the two sides of the main box body respectively, and a three-phase input moving contact and a three-phase output moving contact are arranged at the front end of the high-voltage circuit breaker. One side of the main box body is provided with a static contact assembly matched with the moving contact, the static contact assembly comprises an insulating sleeve and a conductive assembly arranged on the insulating sleeve, the conductive assembly comprises a conductive rod, a static contact, a nut assembly and a grounding contact knife, and the conductive rod is arranged at the rear end of the insulating sleeve. The grounding switch has the advantages that the grounding contact knife is integrally formed in the static contact seat and can be very conveniently matched with the grounding switch, so that grounding is more convenient and safer, and meanwhile, the grounding switch is more reasonable in layout and small in occupied space.

The invention relates to the technical field of circuit breaker auxiliary tools, in particular to a robot switch cabinet circuit breaker quick assembly and disassembly torque protection tool which comprises a rotation stopping base and a rotation stopping plate used for being installed on a cabinet body. The rear end of the torque limiting mechanism is rotatably connected with a tool sleeve, the tool sleeve is composed of a front section, a middle section and a rear section, threads are arranged on the inner circumferential face and the outer circumferential face of the front end of the front section of the tool sleeve, a square hole is formed in the rear end of the rear section of the tool sleeve, and the rear end of the tool sleeve is provided with a quick release mechanism used for being quickly connected with a circuit breaker. The front side of the rotation stopping seat is provided with a rotation stopping mechanism used for limiting the working state of the tool, and the torque limiting mechanism is arranged to limit the transmission torque value of the tool by controlling the friction force, so as to meet the requirements of higher operation speed and load change in the operation process of the handcart. And the problem of operation failure caused by torque control failure of the robot is further avoided.

The invention relates to the technical field of electrical equipment, and discloses a drawer type circuit breaker, which comprises a left baffle plate, the outer surface of the left baffle plate is fixedly connected with a drawer device, the outer surface of the drawer device is fixedly connected with a circuit breaker main body, and the outer surface of the left baffle plate is fixedly connected with a secondary circuit device. The outer surface of the secondary circuit device is fixedly connected with a right baffle plate, the outer surface of the secondary circuit device is clamped with a wire arrangement mechanism, the outer surface of the left baffle plate is clamped with a bracket mechanism, and the outer surface of the left baffle plate is provided with an auxiliary mechanism. The insulation performance is stabilized; component corrosion is prevented, and mechanical wear is reduced; the safety performance can be enhanced, and accidents caused by faults are avoided; and the maintenance efficiency can be improved, the cleaning frequency is reduced, the troubleshooting difficulty is reduced, the reliable operation of the circuit breaker is comprehensively ensured, and the operation and maintenance cost is reduced.

A distribution board in which a drawer-type device (2) is housed, the distribution board comprising: a partition board (20) that partitions a high-voltage compartment (100D) and a drawer-type device compartment (100A), is movable to a pull-out position and an insertion position in conjunction with a pull-out operation and an insertion operation of the drawer-type device (2), and has electrical conductivity; and a bushing (7) which is fixed to a fixing frame (30) provided to the housing (1) of the distribution board, and to which a fixing terminal (10) to which a main circuit terminal (11) of the drawer-type device (2) engages is attached.

A reinforced drawer one-time static plug-in comprises a plug-in body, a copper bar, a metal plate support, a limiting piece and a sleeve. According to the utility model, the limiting piece fixedly connected to the metal plate bracket is arranged, and the copper bar is matched with the sleeve on the limiting piece, so that the circumferential pulling resistance of the copper bar is improved; therefore, after the cable is connected, when the cable is circumferentially pulled under the action of self weight or external force, the sleeve can prevent the copper bar from being deformed, and the phenomenon of poor contact is further prevented.