CN220139093U - Switch cabinet handcart for processing power faults and switch cabinet - Google Patents

Abstract

The utility model discloses a switch cabinet handcart for processing electric power faults and a matched switch cabinet, wherein the handcart comprises a saddle, and is characterized in that a supporting seat is arranged on the saddle, two sleeves are arranged on the supporting seat, vacuum bubbles are arranged in the sleeves, a fixed contact in the vacuum bubbles is connected with a first plug of the sleeve, a moving contact in the vacuum bubbles is connected with a second plug of the sleeve, the moving contact is connected with an insulating terminal, the insulating terminal is connected with a transmission device, and the transmission device is connected with a power source. The second socket of the switch cabinet is combined with the second plug of the handcart, and the second socket is connected with the public lead through a resistor. The handcart is matched with the switch cabinet, and can be used for controlling on-off of two-phase split phases aiming at phase-to-phase short circuit, single-phase grounding and other power faults under the environment of the switch cabinet, thereby providing convenience for the processing of the power faults.

Description

Switch cabinet handcart for processing power faults and switch cabinet

Technical Field

The utility model relates to the field of power system protection, in particular to a switch cabinet handcart for processing power faults and a matched switch cabinet.

Background

The interphase short circuit and the single-phase grounding fault are common faults of the power system, and aiming at the interphase short circuit fault, one fault phase is kept conducting and other fault phases are tripped when the interphase short circuit happens, then the other fault phase is grounded or a public wire is connected, a charged phase is grounded or the public wire is grounded so as to form a closed loop with two fault phases connected through the short circuit, current or current pulse is generated, and then the duration of the current or the number of the current pulse is detected through a controlled switch and the tripping is carried out so as to cut off the fault; troubleshooting a single-phase earth fault also involves operations that require grounding of the non-fault (patent applications 202011453631.0, 202011453632.5, 202011451441.5). When the interphase short circuit or the single-phase ground fault is processed in the switch cabinet environment (but not in the column environment), the handcart of the switch cabinet is required to realize unidirectional control of connecting or disconnecting a certain phase with the earth, but the conventional switch cabinet handcart is generally three-phase linkage and cannot be subjected to single-phase on-off operation by a needle, so that the conventional switch cabinet handcart cannot process the power fault by adopting the method.

Disclosure of Invention

The utility model aims to provide a switch cabinet handcart for processing power faults, which is matched with a switch cabinet, can control on-off of two-phase split phases for power faults such as interphase short circuit, single-phase grounding and the like in a screen cabinet environment, and provides convenience for processing the power faults.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a cubical switchboard handcart for handling electric power trouble, includes the saddle, and its characterized in that is equipped with the supporting seat on the saddle, installs two sleeves on the supporting seat install the vacuum bubble in the sleeve, the stationary contact in the vacuum bubble links to each other with telescopic first plug, and the moving contact in the vacuum bubble links to each other with telescopic second plug, the moving contact links to each other with insulated terminal, and insulated terminal links to each other with transmission, and transmission links to each other with the power supply.

Preferably, the transmission device comprises a bracket, a reciprocating mechanism, a reversing mechanism and a positioning mechanism, wherein the reciprocating mechanism comprises a sliding block, a reset spring, a connecting plate, a first deflection block and a second deflection block, the sliding block is arranged on the bracket, the upper part of the sliding block is connected with the power source, the lower part of the sliding block is connected with the reset spring, one end of the connecting plate is rotationally connected with the sliding block and can reciprocate along with the sliding block, and the first deflection block and the second deflection block enable the axial direction of the connecting plate to deviate from the moving direction of the sliding block towards two sides alternately; the reversing mechanism comprises a reversing groove plate, a swinging plate and a swinging plate support, wherein the reversing groove plate is fixedly connected with a rotating shaft and is rotatably installed on the support, a sliding groove is formed in the reversing groove plate, the other end of the connecting plate is slidably connected in the sliding groove, the reversing groove plate is pushed to rotate reciprocally when the connecting plate reciprocates, the reversing groove plate is rotatably connected with the swinging plate, the swinging plate is rotatably supported on the swinging plate support, the swinging plate is driven to swing around the swinging plate support when the reversing groove plate rotates reciprocally, the rotating shaft is fixedly connected with a reversing driving plate, the reversing driving plate is connected with the reversing driving plate, the reversing driving plate is rotatably installed on the support, and the reversing driving plate is driven reciprocally by the reversing driving plate and enables the first deflection block and the second deflection block to act on the connecting plate alternately; the positioning mechanism comprises a positioning swing arm which is fixedly connected with the rotating shaft, the positioning swing arm is connected with a positioning slide rod in a sliding manner, the positioning slide rod is rotatably arranged on a positioning support plate, and a positioning pressure spring is arranged on the positioning slide rod.

Preferably, the bracket comprises a first side plate and a second side plate, the sliding block is arranged between the first side plate and the second side plate, the reset spring is arranged on the first side plate and/or the second side plate, a slide way is arranged on the first side plate and/or the second side plate, and the sliding rod passes through the sliding block and the slide way to be connected with the reset spring.

Preferably, the connecting plate is located between the first side plate and the second side plate, the first deflection block and the second deflection block are respectively installed on two sides of the first side plate and the second side plate in a rotating mode and are connected with the torsion springs, the first deflection block extends out of the first pressing tongue between the first side plate and the second side plate, the second deflection block extends out of the second pressing tongue between the first side plate and the second side plate, the first pressing tongue can enable the connecting plate to deflect towards the second deflection block, the second pressing tongue can enable the connecting plate to deflect towards the first deflection block, a first protruding edge is arranged on one side of the first deflection block, a second protruding edge is arranged on one side of the second deflection block, the reversing poking plate can push the first protruding edge so that the first pressing tongue is far away from the connecting plate, and the reversing poking plate can push the second protruding edge so that the second pressing tongue is far away from the connecting plate.

Preferably, the reversing groove plate comprises a first groove plate and a second groove plate which are arranged in parallel, the sliding groove is correspondingly arranged on the first groove plate and the second groove plate, the connecting plate is arranged between the first groove plate and the second groove plate and is slidably arranged on the sliding groove through a first pin shaft, the swinging plate comprises a first swinging plate and a second swinging plate which are arranged in parallel, the first swinging plate and the second swinging plate are rotatably arranged on the first groove plate and the second groove plate through a second pin shaft, and a push-pull rod connecting sleeve is further arranged on the first groove plate and the second groove plate.

Preferably, a positioning sliding sleeve is arranged on the positioning swing arm, the hinged end of the positioning sliding rod is rotatably arranged on the first supporting plate and the second supporting plate through a fourth pin shaft and penetrates through the positioning sliding sleeve, and the positioning pressure spring is sleeved on the positioning sliding rod and is located between the hinged end and the positioning sliding sleeve.

Preferably, the positioning swing arm comprises a first swing arm and a second swing arm which are arranged in parallel, and the positioning sliding sleeve is arranged between the first swing arm and the second swing arm.

Preferably, the transmission device is a swinging plate, one end of the swinging plate is connected with the insulating terminal, and the other end of the swinging plate is connected with the bidirectional electromagnetic driving device.

The utility model also provides a switch cabinet for processing the power failure, which comprises a cabinet body and a handcart, wherein the handcart is the switch cabinet handcart for processing the power failure, the cabinet body comprises a first socket and a second socket, the first socket is combined with a first plug of the handcart, the second socket is combined with a second plug of the handcart, and the second socket is connected with a public lead through a resistor.

In the scheme, the support frame is arranged on the handcart, the two switch sleeves are arranged on the support frame, so that vacuum bubbles, the transmission device and the power source can be fixed in a limited space, and split-phase on-off control of two phases is realized. According to the utility model, the sliding block can acquire unidirectional force from a unidirectional power source, the sliding block downwards pushes the connecting plate, the connecting plate can alternately push the reversing groove plate towards two directions, the specific direction is determined by the first deviation placing block and the second deviation placing block, and then the swinging plate is output to the switch, so that the pushing or pulling bidirectional force application of the switch is realized, and after the force application is finished, the in-situ retaining force is also realized due to the action of the positioning mechanism until the next action, the mechanism action is reliable, and the safety is high; a bidirectional power source and a swinging plate can also be arranged to realize the reciprocating motion of the moving contact. The whole device is small in size and suitable for being configured in a limited size space of a screen cabinet. The switch cabinet with the handcart can rapidly process interphase short circuit or unidirectional ground fault by using the method in the background technology by means of resistors and common wires.

Drawings

FIG. 1 is a schematic side cross-sectional view of the present utility model;

FIG. 2 is a schematic view of the back structure of the present utility model;

FIG. 3 is a schematic view of the present utility model with the seat and support removed;

FIG. 4 is a schematic perspective view of a transmission;

FIG. 5 is a schematic diagram of the front view of the transmission;

FIG. 6 is a schematic cross-sectional view of a transmission;

FIG. 7 is a schematic view of a positioning mechanism;

FIG. 8 is a schematic diagram of the positioning action of the positioning swing arm and the positioning slide bar;

FIG. 9 is a schematic view of the positioning swing arm and positioning slide bar rotated to an intermediate state;

FIG. 10 is a schematic perspective view of another angle of the transmission

FIG. 11 is a schematic side cross-sectional view of another embodiment of the present utility model.

Detailed Description

The utility model is further illustrated by the following examples, taken in conjunction with the accompanying drawings:

as shown in the figure, the switch cabinet handcart for handling power failure is provided with a saddle 500, a supporting seat 503 is fixedly connected to the saddle 500, two sleeves 504 are arranged on the supporting seat 503 side by side, two branch pipes are reserved on the sleeves 504, and a first plug 501 and a second plug 502 are respectively arranged on the sleeves. Each sleeve 504 is provided with a vacuum bulb 100, a fixed contact in the vacuum bulb is connected with the first plug 501, and a movable contact is connected with the second plug 502. The moving contact is also connected to a transmission device via an insulating rod 506, and the transmission device is connected to a power source.

In one type of embodiment, the power source is a unidirectional power source 104, and the unidirectional power source is matched with the transmission device to complete the reciprocating separation and closing operation of the driving moving contact and the static contact. Specifically:

the transmission device is provided with a bracket 1, and a reciprocating mechanism, a reversing mechanism and a positioning mechanism are arranged on the bracket 1. In one embodiment, the stand 1 includes a first side plate 101 and a second side plate 102, a platform 103 is disposed on top of the first side plate 101 and the second side plate 102, a perforation 108 is disposed on the platform, and the platform 103 is used for disposing a power source 104, such as an electromagnetic driving mechanism, etc.

The reciprocating mechanism comprises a sliding block 2, a connecting plate 3, a reset spring 4, a first deflection block 5 and a second deflection block 6, wherein the sliding block 2 is positioned between the first side plate 101 and the second side plate 102 and can slide up and down, a connecting hole 201 is formed in the sliding block 2, the sliding block 2 can be connected with a power source 104 through a through hole 108 through the connecting hole 201, and accordingly the power source 104 can push the sliding block 2 to move downwards. The sliding block 2 is provided with a perforation 202, a sliding rod 203 is fixedly arranged on the perforation 202, the sliding rod 203 respectively penetrates through the sliding way 104 on the first side plate 101 and the sliding way 106 on the second side plate to two sides and is connected with the reset springs 4 arranged on the two sides, and the reset springs 4 can enable the sliding block to move upwards to reset. The connection plate 3 is located between the first side plate 101 and the second side plate 102, and the upper end is hinged to the slider 2 through the shaft 301, i.e., the connection plate 3 can move up and down with the slider 2 and rotate relative to the slider 2. A first deflection block 5 is arranged on one side of the first side plate 101 and the second side plate 102 through a pin shaft 501, and a second deflection block 6 is arranged on the other side through a pin shaft 601. The first deviation block 5 is buckled on the first side plate 101 and the second side plate 102 in a U shape, a first pressing tongue 502 extends between the first side plate 101 and the second side plate 102 in the lower direction, and a first convex edge 503 is reserved on one side of the first deviation block 5. The second bias block 6 is fastened on the first side plate 101 and the second side plate 102 in a U shape, and a second pressing tongue 602 extends between the first side plate 101 and the second side plate 102 in the lower direction, and a second convex edge 603 is left on one side of the second bias block 6. Torsion springs 7 are provided on the first and second bias blocks 5 and 6 to apply force to the first and second bias blocks 5 and 6 to the first and second side plates 101 and 102. Both the first pressing tongue 502 and the second pressing tongue 602 can push against the connecting plate 3, the first pressing tongue 502 can deflect the connecting plate 3 towards the second pressing tongue 602 (at this time, the second pressing tongue 602 is pushed away and does not act on the connecting plate 3), the second pressing tongue 602 can also deflect the connecting plate 3 towards the first pressing tongue 502 (at this time, the first pressing tongue 502 is pushed away and does not act on the connecting plate 3), and if the first pressing tongue 502 and the second pressing tongue 602 push against the connecting plate 3 alternately, the connecting plate 3 is deflected towards the left side and the right side alternately and deviates from the moving direction of the sliding block 2.

The reversing mechanism comprises a reversing groove plate 8, a swinging plate 9 and a swinging plate support 10. In one embodiment, the reversing slot plate 8 includes a first slot plate 801 and a second slot plate 802, both of which are provided with a sliding slot 808, the connecting plate 3 is penetrated in the sliding slot 808 by the first pin shaft 302 and can swing in the sliding slot 808, the first slot plate 801 and the second slot plate 802 are connected with a rotating shaft 803, the rotating shaft 803 is an optional spline shaft, etc., and the rotating shaft 803 penetrates through the first side plate 101 and the second side plate 102 to two sides, i.e., the first slot plate 801 and the second slot plate 802 can drive the rotating shaft 803 to rotate on the first side plate 101 and the second side plate 102. One end of the first groove plate 801 and one end of the second groove plate 802 are connected with the swinging plate 9 through a second pin shaft 804, the middle part of the swinging plate 9 is supported on the swinging plate support 10 through a pin shaft 11, and the swinging plate 9 is driven to swing around the swinging plate support 10 when the reversing groove plate 8 rotates in a reciprocating mode. In one embodiment, the swinging plate 9 includes a first swinging plate 901 and a second swinging plate 902 which are arranged in parallel, a push-pull rod connecting sleeve 12 is clamped at one end of the first swinging plate 901 and one end of the second swinging plate 902, and the push-pull rod connecting sleeve 12 can be connected with a push-pull rod of a switch, so that the switch is opened or closed by pulling up or pulling down the push-pull rod, and for a single-pole double-throw switch, a composite moving contact can be separated from a first fixed contact and contacted with a second fixed contact. The reversing driving plate 13 is arranged on one side of the second side plate 102, the reversing driving plate 13 is fixedly arranged on the rotating shaft 803 and can rotate reciprocally along with the rotating shaft 803, the reversing driving plate 13 is provided with the transmission handle 14, the reversing driving plate 16 is further arranged on the second side plate 102 through the rotating shaft 15, one end of the reversing driving plate 16 is provided with the opening 17, the transmission handle 14 is positioned in the opening 17, thus the reversing driving plate 13 can drive the reversing driving plate 16 to rotate reciprocally when rotating reciprocally, the other end of the reversing driving plate 16 is contacted with the first convex edge 503 of the first deflection block 5 and the second convex edge 603 of the second deflection block 6, and the first deflection block 5 and the second deflection block 6 can be pushed open alternately when rotating reciprocally, so that the first pressing tongue 502 or the second pressing tongue 602 loses the pushing deflection effect on the connecting plate.

The positioning mechanism comprises a positioning swing arm 18, the positioning swing arm 18 is fixedly connected with a rotating shaft 803 and can rotate along with the rotating shaft 803, the positioning swing arm 18 is also in sliding connection with a positioning slide rod 19, a hinged end 27 of the positioning slide rod 19 is rotatably arranged on a positioning support plate 20 through a pin roll 28, and a positioning pressure spring 21 is sleeved on the positioning slide rod 19. In a preferred embodiment, the positioning swing arm 18 includes a first swing arm 24 and a second swing arm 25 that are disposed in parallel, a positioning sliding sleeve 26 is disposed on the first swing arm 24 and the second swing arm 25, one end of the positioning sliding rod 19 is disposed on the positioning sliding sleeve 26 in a penetrating manner, and the positioning pressure spring 21 is disposed between the positioning sliding sleeve 26 and the hinge end 27 in a sleeved manner. When the rotation shaft 803 rotates, the positioning swing arm 18 is driven to rotate, the positioning slide rod 19 swings, and the positioning compression spring 21 is compressed until the rotation is completed and then is stretched and restored (the intermediate state of the rotation is shown in fig. 7). Because of the pushing action of the positioning pressure spring 21, the positioning swing arm 18 and the rotating shaft 803 are kept at the position after the rotation, and the rotating shaft 803 and the positioning swing arm 18 can not change positions until the sliding block 2 drives the connecting plate 3 to push the reversing groove plate 8 to rotate again under the action of the power source, so that the contact force for keeping the moving contact and the fixed contact of the switch is actually provided before the position is changed.

When the transmission device works, the power source 104 is arranged on the platform 103, and the power output rod of the power source 104 is connected with the sliding block 2 through the through hole 108, so that the sliding block 2 can be pushed downwards. Assuming that the state shown in fig. 1 is an initial state (the sliding block is located at an initial position, the return spring is in a natural state, the first deflection block 5 is pushed up by the reversing poking plate 16 and does not act on the connecting plate 3, the second deflection block 6 deflects the connecting plate 3 leftwards, the lower end of the connecting plate 3 is located at the upper left part of the sliding groove 808), the sliding block 2 moves downwards to enable the connecting plate 3 to push the reversing groove plate 8 downwards (meanwhile, the return spring 4 is stretched), the reversing groove plate 8 is pushed by the connecting plate 3 to rotate anticlockwise, the other end of the corresponding reversing groove plate 8 is lifted up to drive the left end of the swinging plate 9 to lift up, the right end of the swinging plate 9 moves downwards, the push-pull rod of the switch moves downwards through the push-pull rod connecting sleeve 12 to enable the switch to open (or a combined moving contact leaves the first fixed contact and contacts with the second fixed contact), at the moment, the upper end of the reversing poking plate 16 leaves the first deflection block 5 to push up the second deflection block 6, the first deflection block 5 starts to push the connecting plate 3 under the action of the torsion spring 7, and meanwhile, the positioning of the connecting plate 18 and the swing rod 19 rotates under the action of the positioning spring 21 is kept at the position; when the power output rod of the power source 104 is out of force after the stroke is finished, the sliding block 2 moves upwards under the action of the return spring 4, the connecting plate 3 moves upwards along with the sliding block 2 (in the process, the connecting plate 3 is pushed to the right side by the first deflection block), the lower end of the connecting plate 3 slides upwards in the sliding groove 808 of the reversing groove plate 8 until the sliding block 2 is reset (at the moment, the lower end of the connecting plate 3 is positioned at the upper right end of the sliding groove 808), and at the moment, the reversing groove plate 8 is positioned by the positioning mechanism and is kept still. When the slide block 2 moves downwards again, the push connection plate 3 moves downwards to the right, and finally the reversing groove plate 8 rotates reversely to enable the push-pull rod of the switch to move upwards to realize switch closing (or opening or contact between the composite moving contact and the first fixed contact when leaving the second fixed contact), the reversing poking plate 16 turns to and transposes again to release the second deflection block 6 and push the first deflection block 5, meanwhile, the positioning swing arm 18 and the positioning slide rod 19 rotate and reverse and keep the position, the slide block 2 drives the connection plate 3 to ascend and reset after the power source 104 loses force, the second deflection block 6 continuously pushes the connection plate 3 to deflect leftwards in the process, and the reversing groove plate 8 is kept motionless by the positioning mechanism, so that the initial state is returned. The subsequent work repeats the above process.

In another class of embodiments, the power source is an electromagnet bi-directional power source 510 and is directly connected to a swing plate 511, which drives the moving contact to reciprocate through an insulated pull rod.

The switch cabinet comprises a cabinet body and the handcart, wherein the cabinet body comprises a first socket and a second socket, the first socket is combined with a first plug of the handcart, the second socket is combined with a second plug of the handcart, and the second socket is connected with a public lead through a resistor.

The switch cabinet can realize two-phase analysis control in a three-phase power system under the environment of the screen cabinet, and can be used for processing interphase short-circuit faults or single-phase grounding faults.

The above embodiments are merely illustrative of the inventive concept and implementation and are not limiting, but the technical solutions without substantial transformation remain within the scope of protection under the inventive concept.

Claims (9)

1. The switch cabinet handcart for processing the power failure comprises a saddle, and is characterized in that a supporting seat is arranged on the saddle, two sleeves are arranged on the supporting seat, vacuum bubbles are arranged in the sleeves, a fixed contact in the vacuum bubbles is connected with a first plug of the sleeve, a moving contact in the vacuum bubbles is connected with a second plug of the sleeve, the moving contact is connected with an insulating terminal, the insulating terminal is connected with a transmission device, and the transmission device is connected with a power source; the transmission device comprises a bracket, a reciprocating mechanism, a reversing mechanism and a positioning mechanism, wherein the reciprocating mechanism comprises a sliding block, a reset spring, a connecting plate, a first deflection block and a second deflection block, the sliding block is arranged on the bracket, the upper part of the sliding block is connected with the power source, the lower part of the sliding block is connected with the reset spring, one end of the connecting plate is rotationally connected with the sliding block and can reciprocate along with the sliding block, and the first deflection block and the second deflection block enable the axial direction of the connecting plate to deviate from the moving direction of the sliding block towards two sides alternately; the reversing mechanism comprises a reversing groove plate, a swinging plate and a swinging plate support, wherein the reversing groove plate is fixedly connected with a rotating shaft and is rotatably installed on the support, a sliding groove is formed in the reversing groove plate, the other end of the connecting plate is slidably connected in the sliding groove, the reversing groove plate is pushed to rotate reciprocally when the connecting plate reciprocates, the reversing groove plate is rotatably connected with the swinging plate, the swinging plate is rotatably supported on the swinging plate support, the swinging plate is driven to swing around the swinging plate support when the reversing groove plate rotates reciprocally, the rotating shaft is fixedly connected with a reversing driving plate, the reversing driving plate is connected with the reversing driving plate, the reversing driving plate is rotatably installed on the support, and the reversing driving plate is driven reciprocally by the reversing driving plate and enables the first deflection block and the second deflection block to act on the connecting plate alternately; the positioning mechanism comprises a positioning swing arm which is fixedly connected with the rotating shaft, the positioning swing arm is connected with a positioning slide rod in a sliding manner, the positioning slide rod is rotatably arranged on a positioning support plate, and a positioning pressure spring is arranged on the positioning slide rod.

2. The switchgear trolley for handling electrical faults according to claim 1 characterised in that the support comprises a first side plate and a second side plate, the slide is arranged between the first side plate and the second side plate, the return spring is arranged on the first side plate and/or the second side plate, a slideway is arranged on the first side plate and/or the second side plate, and the slide bar is connected with the return spring through the slide and the slideway.

3. The switch cabinet handcart for handling electric power failure according to claim 2, wherein the connecting plate is located between the first side plate and the second side plate, the first offset block and the second offset block are respectively rotatably installed at two sides of the first side plate and the second side plate and are connected with torsion springs, the first offset block extends out of a first pressing tongue between the first side plate and the second side plate, the second offset block extends out of a second pressing tongue between the first side plate and the second side plate, the first pressing tongue can deflect the connecting plate towards the second offset block, the second pressing tongue can deflect the connecting plate towards the first offset block, a first protruding edge is arranged at one side of the first offset block, a second protruding edge is arranged at one side of the second offset block, the reversing poking plate can push against the first protruding edge so as to enable the first pressing tongue to be far away from the connecting plate, and the reversing poking plate can push against the second protruding edge so as to enable the second pressing tongue to be far away from the connecting plate.

4. A switchgear trolley for handling electrical faults as claimed in claim 3, wherein the reversing channel plate comprises a first channel plate and a second channel plate arranged in parallel, the sliding channels are correspondingly arranged on the first channel plate and the second channel plate, the connecting plate is arranged between the first channel plate and the second channel plate and is slidably arranged on the sliding channels through a first pin shaft, the swinging plate comprises a first swinging plate and a second swinging plate arranged in parallel, the first swinging plate and the second swinging plate are rotatably arranged on the first channel plate and the second channel plate through a second pin shaft, and a push-pull rod connecting sleeve is further arranged on the first channel plate and the second channel plate.

5. The switch cabinet handcart for handling electric power failure according to claim 4, characterized in that a positioning sliding sleeve is arranged on the positioning swing arm, the hinged end of the positioning sliding rod is rotatably arranged on the first supporting plate and the second supporting plate through a fourth pin shaft and is penetrated on the positioning sliding sleeve, and the positioning pressure spring is sleeved on the positioning sliding rod and is positioned between the hinged end and the positioning sliding sleeve.

6. The switchgear trolley for handling electrical faults of claim 5 in which the locating swing arm comprises a first swing arm and a second swing arm arranged in parallel, the locating slide sleeve being disposed between the first swing arm and the second swing arm.

7. The switchgear trolley for handling electrical faults according to claim 1 in which the power source is a unidirectional power source.

8. The switchgear trolley for handling electrical faults according to claim 1, characterized in that the transmission means are a swinging plate, one end of which is connected to the moving contact via an insulating pull rod, and the other end is connected to the power source, which is a bi-directional electromagnetic drive.

9. A switchgear for handling power failures, comprising a cabinet body and a trolley, characterized in that the trolley is a switchgear trolley for handling power failures according to any one of claims 1 to 8, the cabinet body comprising a first socket and a second socket, the first socket being combined with a first plug of the trolley, the second socket being combined with a second plug of the trolley, the second socket being further connected with a common conductor through a resistor.