40results about "Switchgear with horizontal withdrawal" patented technology

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.

An electrical and mechanical circuit breaker position indicator (1) in an electrical switchgear (100) comprising an enclosure (101) housing a circuit breaker assembly mounted on a truck (102) movable between a first, racked-out, test position, a second, intermediate position, and a third, racked-in, service position of said circuit breaker assembly. The electrical and mechanical circuit breaker position indicator (1) comprises a single kinematic chain (10) which operatively connected to said truck (102) and movable between a first, a second and a third operative position respectively in correspondence of said first, racked-out, test position, a second, intermediate position, and a third, racked-in, service position of said truck (102) and circuit breaker assembly and providing an electrical signal and a mechanical indication in correspondence of each of said first, racked-out, test position, a second, intermediate position, and a third, racked-in, service position of said truck (102) and circuit breaker assembly.

The present invention discloses an electrical connection device, which is connected between the body of an electrical device with a draw-out structure and the draw-out device. The electrical connection device includes: a draw-out device connection component, a body connection component, and a flexible component. The draw-out device connection component is fixed on the draw-out device and is electrically connected to the incoming and outgoing line ends of the draw-out device. The body connection component includes a contact piece with a clamping mechanism, and the clamping mechanism enables the contact piece to closely adhere to and clamp the body busbar. The flexible component connects the draw-out device connection component and the body connection component, and the body connection component, the flexible component, and the draw-out device connection component form an electrically conductive path. The contact piece of the body connection component offsets in response to the position offset of the body busbar, so that the contact piece closely adheres to and clamps the body busbar, and the flexible component absorbs the offset of the contact piece through its own deformation, so that the offset is not transmitted to the draw-out device connection component.

The utility model relates to a centrally installed switchgear convenient for operating a circuit breaker. The centrally installed switchgear comprises a cabinet body and a circuit breaker moving mechanism. An instrument chamber, a circuit breaker chamber and a cable chamber are arranged in the cabinet body; the circuit breaker moving mechanism comprises a base, a lead screw, a moving seat and a circuit breaker; the base is arranged in the circuit breaker chamber; the lead screw is horizontally and rotatably arranged on the base and is arranged along the moving direction of the circuit breaker; the movable seat sleeves the lead screw in a threaded manner; the circuit breaker is mounted on the moving seat; an insertion hole is formed in the outer side end part of the lead screw; a circuit breaker joint is arranged in the cable chamber, and one end of the circuit breaker joint extends into the circuit breaker chamber and directly faces the circuit breaker; and the other end of the circuit breaker joint is provided with a plurality of copper bar interfaces. According to the utility model, the circuit breaker can be quickly and effectively operated to be switched on or switched off.

Switchgear (1) comprising within a housing (10): a circuit breaker chamber (20a, 20b) accommodating a circuit breaker (2a, 2b); a bus chamber (40) accommodating a bus (4) connected to the circuit breaker (2a, 2b); a cable chamber (30) which accommodates a cable (3) connected to the circuit breaker (2a, 2b); and a control chamber (50, 50a, 50b) accommodating a control device for controlling opening / closing of the circuit breaker (2a, 2b), wherein the circuit breaker chambers (20a, 20b) are provided on several levels, and a frame-like cover having a left side portion (120), a right side portion (130), a lower side portion (140), and an upper side portion (110) is provided so as to cover a gap between a door (11) provided on a front side of the circuit breaker chamber (20a) at a lowest stage and having an inner frame portion (11b) along inner edge sides opposite to a front surface portion (11a), and the circuit breaker chamber (20a), wherein at least one of the portions of the frame-like cover other than the upper side portion (110) is detachable from and attachable to the circuit breaker chamber (20a).

A switching apparatus for electric power distribution grids comprising: - a withdrawable first switching unit having one or more first electric poles; - a withdrawable second switching unit having one or more second electric poles and electrically connected ins series with said first switching unit; - a controller implementing control strategies directed to increase the safety of the withdrawal manoeuvres of said first and second switching units.

Electrical device comprising: - a circuit breaker intended to be installed in an electrical switchgear cell, the circuit breaker being configured to be moved between a plugged-in position and a unplugged position; - a socket (50) configured to be connected to the circuit breaker and comprising a housing (52) and a locking means (54) connected to said housing (52), the locking means (54) being configured to, when the socket (50) is connected to the circuit breaker, move between a locked position, in which the locking means (54) engages at least one anchoring element provided on the housing (52), and an unlocked position, in which the locking means (54) is released from at least one anchoring element, the socket (50) further comprising a sensor (80) configured to detect the locked position and / or the unlocked position of the locking means (54),in which the circuit breaker (40) is configured to be moved between an inside and an outside of the electrical switchgear cell (20), the sensor (80) further configured to cause the circuit breaker (40) to trip before the circuit breaker (40) is moved from the inside to the outside of the electrical switchgear cell (20) when the locking means (54) is in the unlocked position and / or to cause the circuit breaker (40) to trip and allow the movement of said circuit breaker (40) between the plugged-in and unplugged positions when the locking means (54) is in the locked position.

A draw out circuit breaker has a reduced partial discharge in insulation surrounding a primary stab bus. A circular disk plate on one end of the bus includes tapped inserts located at a radial separation distance from the bus. An insulator sleeve surrounding the bus is formed to encapsulate the tapped inserts. Raised embosses on the circular disk plate separate the end portion of the insulator sleeve by a gap distance from the inward facing surface of the disk plate. The increased gap distance reduces formation of a triple point region between the surface of the disk plate and the insulator sleeve, thereby reducing occurrence of partial discharges in the insulator sleeve near the gap.

An electrical switchgear for low-voltage or medium-voltage applications includes a cabinet, a withdrawable switching device, and a shield assembly movable along a reference plane of motion. The electrical switchgear includes one or more power connection blocks, each including line contacts, disconnect contacts, and an insulating housing. According to the invention, at least the line contacts and the insulating housing form an integral structure.

The invention relates to a station signal device for a draw-out type circuit breaker and the draw-out type circuit breaker with the station signal device, and the station signal device comprises a switch actuating element which is fixedly installed on a movable part; the plurality of groups of switch assemblies are fixedly arranged in the cabinet body and are arranged at intervals along the moving direction of the switch actuating element, and the group number of the plurality of groups of switch assemblies is designed to be the same as the station number, so that each group of switch assemblies can be actuated by the switch actuating element which moves to the corresponding station to generate a corresponding electric signal; wherein each group of switch assemblies comprises at least two switch parts which are sequentially arranged far away from the switch actuating element in the direction transverse to the moving direction of the switch actuating element, and each switch part of each group of switch assemblies can actuate the switch part located on the side far away from the switch actuating element. The at least two switch elements are moved to the corresponding stations, so that each group of switch assemblies can actuate the at least two switch elements when being actuated by the switch actuating elements moved to the corresponding stations, thereby generating at least two corresponding electric signals.

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.

Switchgear (1) with two circuit breakers (10) arranged in an upper frame and a lower frame of the switchgear (1), wherein three main busbars (4b) which are arranged in the lower frame of the switchgear (1) and which are longer in a width direction than in a thickness direction, have a flat surface and extend in a lateral direction, are arranged parallel to each other in a top-bottom direction, such that the flat surfaces of these face each other, wherein positions at which three branch busbars (6) connecting the three main busbars (4b) to the lower circuit breaker (10) are connected to the three main busbars (4b) differ from each other in the lateral direction, and wherein the positions in the lateral direction where the three branch busbars (6) are connected to the three main busbars (4b) correspond to gaps between three power cable connecting conductors (5) arranged side by side in the lateral direction.

An electrical device (30) comprising: - a circuit breaker (40) intended to be installed in an electrical equipment unit (20), the circuit breaker (40) being configured to move between an engaged position and a disengaged position; - a plug (50) configured to be connected to the circuit breaker (40), the plug (50) comprising a housing (52) and a locking means (54) connected to the housing (52), the locking means (54) being configured to move between a locked position, in which the locking means (54) engages with at least one anchoring element (90) provided on the housing, and an unlocked position, in which the locking means (54) is released with respect to the at least one anchoring element (90), when the plug (50) is connected to the circuit breaker (40), the plug (50) further comprising a sensor (80) configured to detect the locked position and / or the unlocked position of the locking means (54).

A switch device (1) includes, inside a frame (10), a breaker chamber (20a, 20b) in which breakers (2a, 2b) are housed, and a control chamber (50a, 50b) in which control equipment (510, 520, 530, 540) that controls opening and closing of the breakers is housed, the control chamber (50a, 50b) being disposed in front of the breaker chamber (20a, 20b), the control equipment (510, 520, 530, 540) being housed on a door (9a, 9b) side of the frame (10), and a control equipment chamber (510a, 520a, 530b, 540b) having a box (511a, 521a, 531b, 541b) being provided.

The application discloses an activity locking structure, a switch cabinet and a locking method, and belongs to the technical field of power grid equipment, wherein the activity locking structure comprises a cabinet body, a shielding piece, a first supporting rod, a moving rod, a limiting electronic lock and a control console, the shielding piece is sleeved with the first supporting rod and is in sliding cooperation with the first supporting rod, and the moving rod is installed on the shielding piece; the limiting electronic lock is installed on the cabinet body, the limiting electronic lock is provided with a lock tongue plate which is used for cooperating with the moving rod; the control console is electrically connected with the limiting electronic lock, and the control console is used for monitoring the locking state of the limiting electronic lock; and the shielding piece has two moving positions, and the shielding piece is limited by the lock tongue plate at one of the moving positions. The shielding piece is used for shielding a leakage position or a dangerous position in the cabinet body, when the shielding piece moves to one of the moving positions, the shielding piece is limited by the lock tongue plate, and maintenance personnel is prevented from entering the cabinet body and touching dangerous equipment.

A scalable power tap off system is provided for a power distribution system. The system can have components including a line-side connector assembly for connecting to an upstream power supply, a load-side connector assembly for connecting to downstream load(s), and a draw-out circuit breaker assembly connected between the line-side and load-side connector assemblies. The system also includes a shutter assembly having a movable shutter for proving a barrier to prevent access to at least line-side electrical components on the breaker assembly when the breaker assembly is in the racked-out state, and insulated interconnect buses for electrically connecting the line-side connector assembly and the load- side connector assembly to the breaker assembly. An enclosed compartment is provided to house the load-side connector assembly in isolation from other components and allows access to the load-side connector assembly when the breaker assembly is in a racked-out state or the load-side connector assembly is de-energized.

A slide-in clamping device (100) for removably connecting a first electrical terminal of a withdrawable low-voltage circuit breaker to a corresponding second electrical terminal of a respective stationary base in a withdrawable low-voltage circuit breaker unit comprises at least one pair of first clamping fingers (131) facing each other and at least partially laterally delimiting a first clamping seat (110) for one of said first and second electrical terminals, the first clamping seat (110) comprising a respective slide-in opening (111); at least one pair of second clamping fingers (132) facing each other and at least partially laterally delimiting a second clamping seat (120) for the other of said first and second electrical terminals, the second clamping seat (120) comprising a respective slide-in opening (121) facing oppositely relative to the slide-in opening (111) of the first clamping seat (110); bias elastic means (140) acting on said at least one pair of first clamping fingers (131) and said at least one pair of second clamping fingers (132) so as to urge the clamping fingers (131, 132) of each pair towards each other in a clamping direction (Y-Y) substantially perpendicular to respective slide-in directions (X1-X1) of said first clamping seat (110) and said second clamping seat (120). In the clamping device (100) at least one displaceable spacer assembly (170) is provided having a displaceable spacer member (171), wherein the displaceable spacer member (171) is displaceable between an active position, in which the displaceable spacer member (171) contacts the first clamping fingers (131) of the at least one pair of first clamping fingers or the second clamping fingers (132) of the at least one pair of second clamping fingers urging them away from each other in the clamping direction (Y-Y), and an inactive position, in which the displaceable spacer member (171) does not apply any force to said first clamping fingers (131) or said second clamping fingers (132). A withdrawable low-voltage circuit breaker unit comprising the slide-in clamping device (100) is also disclosed.

Switchgear (1) with a housing (10) the interior of which is partitioned into compartments, wherein the switchgear (1) has a circuit breaker compartment (20a, 20b) which accommodates a circuit breaker (2a, 2b) and a control compartment (50a, 50b) which accommodates a control device (510, 520, 530, 540) for controlling an opening / closing of the circuit breaker (2a, 2b), wherein the control chamber (50a, 50b) is located in front of the circuit breaker chamber (20a, 20b), a control device chamber (510a, 520a, 530b, 540b) which accommodates the control device (510, 520, 530, 540) is provided on one side of a door (9, 9a, 9b) of the housing (10) in the control chamber (50a, 50b), the control device chamber (510a, 520a, 530b, 540b) has a small door (512a, 522a, 532b, 542b) and a box body (511a, 521a, 531b, 541b) which accommodates the control device (510, 520, 530, 540), and the small door (512a, 522a, 532b, 542b) is provided for the door (9, 9a, 9b) of the housing (10), and the box body (511a, 521a, 531b, 541b) is designed such that the control chamber (50a, 50b) is not exposed to the outside world when the small door (512a, 522a, 532b, 542b) is open.

The present disclosure relates to an extractable type hybrid switchgear. A switchgear for an electrical distribution network, comprising: - an extractable first switch unit having one or more first electrodes; - an extractable second switch unit having one or more second electrodes and electrically connected in series with the first switch unit; - a controller implementing a control strategy for increasing the safety of the extraction manoeuvre of the first switch unit and the second switch unit.

A control unit (100) comprises a control unit housing (10) and a plurality of control devices (20). The control unit housing (10) has separating plates (30) that separate the control devices (20) from one another. Each control device (20) has a locking rod (24) that moves linearly synchronously with the ON / OFF operation of an actuating handle (23). The control device (20) has a locking mechanism (50) with a locking plate (51) that has a separating plate engagement section (51A) which can be engaged with the control unit housing (10) in an operating position, and a locking rod control section (51B) that controls the locking rod (24) so ​​that it can only be engaged with the separating plate (30) when the separating plate engagement section (51A) has been engaged with the control unit housing (10).

To reduce a work load by boltless attachment and detachment, etc., while relaxing structural restrictions.SOLUTION: A draw-out type vacuum circuit breaker (1) includes a circuit breaker body (25) mounted on a truck (20) having a wheel (21), and a cradle (10) containing the circuit breaker body placed on a bottom plate (11), and a fall prevention tool (30) prevents the circuit breaker body from falling out of the cradle. The cradle includes a hole (18) formed in a guide (12) and penetrating vertically, and a pin (17) protruding upward from the bottom plate. The fall prevention tool includes a main body (31) arranged on the bottom plate and extending in a direction crossing a travel route (R) of the wheel, an insertion piece (32) formed in the main body and inserted into the hole from below, and an opening (33) formed in the main body and into which the pin can be inserted from the upper end.SELECTED DRAWING: Figure 2

A primary metering cabinet includes a frame including a plurality of vertical frame members and a plurality of horizontal frame members, the frame defining an interior volume; a line connection located within the interior volume and coupled to the frame; a load connection located within the interior volume and coupled to the frame; a current transformer electrically coupled to the line connection and the load connection between the line connection and the load connection; and a carriage assembly coupled to the current transformer and mounted to the frame such that the current transformer is mounted to the frame via the carriage assembly. The current transformer and the carriage assembly are collectively movable relative to the frame between an installation position and a service position.

To smoothly draw out and push in a breaker by only one worker.SOLUTION: A handle portion protruding from the front panel and configured to be operated when a position of the handle portion is changed from a first position at which the movement of the circuit breaker is prohibited to a second position at which the movement of the circuit breaker is permitted, and an interlock lever portion that returns from the second position to the first position when an external force for holding the interlock lever portion at the second position is removed, wherein the assist tool has an elongated shape, has a first engaging portion that engages with the interlock lever portion at one end, and has a second engaging portion that engages with the handle portion at the other end so that the interlock lever portion engaged with the first engaging portion is held at the second position.SELECTED DRAWING: Figure 3