CN117133579A - High-voltage circuit breaker and monitoring method - Google Patents

Abstract

The application discloses a high-voltage circuit breaker and a monitoring method, which belong to the technical field of electric power devices. The device is through adjustment driver and screw rod for the bridgehead increases the distance to realize the quick arc extinguishing operation of electric arc, the electric arc is the spark that produces when high voltage circuit breaker divides the breaking current, through quick arc extinguishing, can cut off the circuit rapidly and eliminate electric arc, the safety of protective apparatus and system, the quick arc extinguishing of electric arc ensures that the circuit breaker accomplishes the break-make operation rapidly, the time that has reduced electric arc to last, the disconnection efficiency has been improved, in conclusion, realize quick arc extinguishing through adjusting the distance and be the main benefit of this kind of device, ensure that high voltage circuit breaker is quick to kill electric arc at break-make in-process, improve the reliability of equipment, the steady operation of protection electric power system, simultaneously, the guiding effect of explosion frame also helps accelerating the arc extinguishing process, ensure safe circuit disconnection.

Description

High-voltage circuit breaker and monitoring method

Technical Field

The application belongs to the technical field of power devices, and particularly relates to a high-voltage circuit breaker and a monitoring method.

Background

A high voltage circuit breaker is an electrical apparatus for controlling and protecting a high voltage power system. Its primary function is to open or close current in the high voltage circuit to protect electrical equipment and systems from damage caused by overload, short circuits, or other faults.

High voltage circuit breakers are commonly used in electrical transmission and distribution systems, typically rated at kilovolts (kV) or higher. High voltage circuit breakers are an important component of an electrical power system for ensuring reliable operation and safety of the electrical grid.

The principle of operation of high voltage circuit breakers is basically to protect electrical equipment and systems from damage by rapidly disengaging contacts, creating an arc extinguishing process, and directing fault currents to the ground or other safe locations. The choice of such a high voltage circuit breaker depends on the specific requirements and the rated voltage class of the power system.

The traditional high-voltage circuit breaker is operated by adopting a vacuum arc-extinguishing chamber, and the more conventional vertical high-voltage circuit breaker has the condition that continuous electric arcs can not be disconnected in time when the disconnection opening is still formed.

The present application has been made in view of this.

Disclosure of Invention

The application aims to overcome the defects and shortcomings of the prior art and provides a high-voltage circuit breaker and a monitoring method.

The technical scheme adopted by the application is as follows: a high voltage circuit breaker, comprising:

a base;

the insulators are sequentially stacked to form a plurality of columnar structures and are arranged on the upper surface of the base;

a bridge;

a power receiving seat;

the bridge frame and the electric connection seat are respectively arranged at the top ends of columnar structures formed by the corresponding insulators, and are respectively connected with the cables to form a loop;

the conductive arm is arranged on the inner wall of the power receiving seat and used for conducting electric power;

a bridge head;

the bridge head is fixed at one end of the conductive arm and is electrically connected with the power receiving seat through the conductive arm, and the bridge head and the bridge frame are in an arc-shaped movement track non-coincident state;

an electric telescopic rod;

a connecting rod;

one end of the connecting rod is movably connected with the power receiving seat, the other end of the connecting rod is fixed with the execution end of the electric telescopic rod, and the inclination of the conductive arm is controlled and adjusted by the electric telescopic rod;

a traversing assembly;

the transverse moving assembly is arranged on the inner wall of the base and used for controlling the superposition of the horizontal position of the bridge frame and the arc-shaped movement track of the bridge head.

As a further aspect of the application: connecting flanges are arranged at two ends of the insulators, and adjacent insulators are fixed through the connecting flanges.

As a further aspect of the application: the bridge comprises a first insulating seat fixed with a corresponding insulator, an insulating boss is arranged on the inner wall of the first insulating seat, a plurality of conducting strips are arranged on two sides of the insulating boss, the conducting strips are fixed on the inner wall of the first insulating seat, an insulating gasket is fixedly connected with the inner wall of the first insulating seat, and a first arc extinguishing frame is arranged on two sides of the first insulating seat.

As a further aspect of the application: the upper surface of base is provided with overhead seat, mount pad and sideslip slide that is used for the columnar mechanism installation that the insulator constitutes, overhead seat and mount pad all are connected with the upper surface fixed of base, the spacing slip of sideslip slide is in the both sides of base.

As a further aspect of the application: the bridge head comprises a conductive head fixed with the connecting rod, the end part of the conductive head is provided with a clamping head matched with the insulating boss, and the surface of the conductive head is fixedly connected with a second arc extinguishing frame matched with the first arc extinguishing frame.

As a further aspect of the application: the transverse moving assembly comprises two partition boards fixed on the inner wall of the base, a screw rod is jointly penetrated and rotated between the two partition boards, a driver for driving the screw rod is arranged at one end of the screw rod, the driver is fixed on one side of the corresponding partition board, a threaded sleeve is in threaded fit with the surface of the screw rod, and the threaded sleeve is fixedly connected with the transverse moving sliding seat.

As a further aspect of the application: the electric connection seat comprises a second insulating seat fixed with two corresponding insulators, the surface of the second insulating seat is movably connected with a movable frame through a pin shaft, the movable frame is fixedly connected with the bottom end of a conductive arm, the top end of the movable frame is fixedly provided with a support arm, the support arm is movably connected with a transmission arm through a pin shaft, the inner wall of the transmission arm is movably connected with the top end of a connecting rod through a pin shaft, the inner wall of the second insulating seat is fixedly connected with a connection piece, the upper surface of the connection piece is fixedly connected with a first clamping seat, the lower surface of the connection piece is fixedly connected with a second clamping seat, and the two sides of the second insulating seat are provided with third arc extinguishing frames.

As a further aspect of the application: the right end of the base is fixedly provided with a vertical frame, and the electric telescopic rod is movably connected to the top end of the three-dimensional body through a pin shaft.

As a further aspect of the application: a method of monitoring a high voltage circuit breaker, comprising the steps of:

when the bridge head is separated from the bridge frame, if the third arc-extinguishing frame and the first arc-extinguishing frame or the second arc-extinguishing frame generate electric arcs, when the electric arcs are generated between the third arc-extinguishing frame and the first arc-extinguishing frame or between the second arc-extinguishing frame and the third arc-extinguishing frame respectively, the driver is started, so that the screw rod rotates, the screw sleeve moves, and the sliding seat moves on the surface of the base until the sliding seat moves away from the bridge head and the electric arc-receiving frame, so that the electric arcs are disconnected.

The beneficial effects of the application are as follows: according to the device, the distance between bridge heads is increased by adjusting the driver and the screw rod, so that the rapid arc extinguishing operation of an electric arc is realized. An arc is a spark generated when a high voltage circuit breaker breaks a current, and if the arc is continuously present, it may cause damage to equipment or even explosion. By rapid arc extinction, the circuit can be rapidly cut off and the arc can be eliminated, thereby protecting the safety of equipment and systems. The quick arc extinction of electric arc ensures that the circuit breaker accomplishes the break-make operation rapidly, has reduced the time that electric arc continuously exists, has improved the disconnection efficiency, and to sum up, realizing quick arc extinction through adjusting the distance is the main benefit of this kind of device, and it can ensure that high voltage circuit breaker is in break-make in-process quick extinction electric arc, improves the reliability of equipment, protects electric power system's steady operation. Meanwhile, the guiding function of the arc extinguishing rack is also beneficial to accelerating the arc extinguishing process and ensuring safe circuit disconnection.

Drawings

In order to more clearly illustrate the embodiments of the application or the technical solutions of the prior art, the drawings which are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the application, and that it is within the scope of the application to one skilled in the art to obtain other drawings from these drawings without inventive faculty.

FIG. 1 is a schematic view of a three-dimensional structure according to an embodiment of the present application;

FIG. 2 is a schematic view of a cross-sectional structure of a traversing assembly according to an embodiment of the present application;

FIG. 3 is a schematic diagram illustrating a three-dimensional structure of a power socket according to an embodiment of the present application;

FIG. 4 is a schematic view of a three-dimensional structure of a bridge head according to an embodiment of the present application;

FIG. 5 is a schematic view of a bridge frame according to an embodiment of the present application;

FIG. 6 is a schematic diagram I of a portion of a traversing assembly according to a second embodiment of the present application;

FIG. 7 is a schematic diagram of a second cross-sliding assembly according to the second embodiment of the present application;

FIG. 8 is a third schematic view of a portion of a traversing assembly according to the second embodiment of the present application;

FIG. 9 is a schematic diagram of a portion of a traversing assembly according to a second embodiment of the present application;

FIG. 10 is a schematic view of a second traverse carriage in a first stage according to an embodiment of the present application;

FIG. 11 is a schematic diagram of a second embodiment of the present application with a traversing carriage at a critical point;

fig. 12 is a schematic diagram of a second stage of the traversing carriage according to the second embodiment of the present application.

Detailed Description

The application will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the application and therefore show only the structures which are relevant to the application.

In the description of the present application, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

In the description of the present application, it should be noted that, in the embodiments of the present application, all the expressions "first" and "second" are used for distinguishing two entities with the same name and non-same parameters, and it is noted that the "first" and "second" are merely for convenience of description, and should not be construed as limiting the embodiments of the present application, and the following embodiments are not described in any way.

Embodiment one:

as shown in fig. 1 to 5, a high voltage circuit breaker includes:

a base 1;

the insulators 2 are sequentially stacked to form a plurality of columnar structures and are arranged on the upper surface of the base 1;

a bridge 3;

a power receiving seat 4;

the bridge 3 and the power receiving seat 4 are respectively arranged at the top end of the columnar structure formed by the corresponding insulator 2, and the bridge 3 and the power receiving seat 4 are respectively connected with cables to form a loop;

a conductive arm 10 mounted on the inner wall of the power receiving seat 4 for conducting electric power;

a bridge head 5;

the bridge head 5 is fixed at one end of the conductive arm 10 and is electrically connected with the power receiving seat 4 through the conductive arm 10, and the bridge head 5 and the bridge frame 3 are in an arc movement track non-coincident state;

an electric telescopic rod 11;

a connecting rod 12;

one end of the connecting rod 12 is movably connected with the power receiving seat 4, the other end of the connecting rod is fixed with the executing end of the electric telescopic rod 11, and the inclination of the conductive arm 10 is controlled and adjusted by the electric telescopic rod 11;

a traversing assembly 6;

the traversing assembly 6 is arranged on the inner wall of the base 1 and used for controlling the superposition of the horizontal position of the bridge 3 and the arc-shaped movement track of the bridge head 5.

The two ends of the insulator 2 are provided with connecting flanges 14, and the adjacent insulators 2 are fixed by the connecting flanges 14.

Through setting up insulator 2, can play insulation and supporting role in the device for keep apart high-voltage circuit, prevent electric current leakage and puncture, flange 14 connects the both ends of insulator 2 simultaneously, makes adjacent insulator 2 pass through flange 14 fixed, ensures insulator 2's stability.

The bridge 3 comprises a first insulating seat 31 fixed with the corresponding insulator 2, an insulating boss 32 is arranged on the inner wall of the first insulating seat 31, a plurality of conducting strips 34 are arranged on two sides of the insulating boss 32, the conducting strips 34 are fixed on the inner wall of the first insulating seat 31, an insulating gasket 33 is fixedly connected to the inner wall of the first insulating seat 31, and a first arc extinguishing frame 35 is arranged on two sides of the first insulating seat 31.

The upper surface of base 1 is provided with built on stilts seat 7, mount pad 8 and sideslip slide 9 that are used for the columnar mechanism installation that insulator 2 constitutes, built on stilts seat 7 and mount pad 8 all with the upper surface fixed connection of base 1, sideslip slide 9 limit sliding is in the both sides of base 1.

The bridge head 5 comprises a conductive head 51 fixed with the connecting rod 12, a clamping head 52 matched with the insulation boss 32 is arranged at the end part of the conductive head 51, and a second arc extinguishing frame 48 matched with the first arc extinguishing frame 35 is fixedly connected to the surface of the conductive head 51.

The traversing assembly 6 comprises two partition plates 61 fixed on the inner wall of the base 1, a screw 63 is penetrated and rotated between the two partition plates 61, one end of the screw 63 is provided with a driver 62 for driving the screw, the driver 62 is fixed on one side of the corresponding partition plate 61, a threaded sleeve 64 is in threaded fit with the surface of the screw 63, and the threaded sleeve 64 is fixedly connected with the traversing slide 9.

The power connection seat 4 comprises a second insulating seat 41 fixed with two corresponding insulators 2, the surface of the second insulating seat 41 is movably connected with a movable frame 42 through a pin shaft, the movable frame 42 is fixedly connected with the bottom end of the conductive arm 10, the top end of the movable frame 42 is also fixedly provided with a support arm 43, the support arm 43 is movably connected with a transmission arm 44 through a pin shaft, the inner wall of the transmission arm 44 is movably connected with the top end of the connecting rod 12 through a pin shaft, the inner wall of the second insulating seat 41 is fixedly connected with a connection piece 45, the upper surface of the connection piece 45 is fixedly connected with a first clamping seat 46, the lower surface of the connection piece 45 is fixedly connected with a second clamping seat 47, and the two sides of the second insulating seat 41 are provided with third arc extinguishing frames 53.

The right end of the base 1 is fixed with a vertical frame 13, and the electric telescopic rod 11 is movably connected to the top end of the three-dimensional body through a pin shaft.

By setting the base 1: a base structure for supporting the entire device. The upper surface is provided with an overhead seat 7, a mounting seat 8 and a transverse sliding seat 9, and is used for mounting and supporting a columnar mechanism formed by the insulators 2.

By providing the traversing assembly 6: a spacer 61 and a screw 63 are included for effecting lateral movement of the bridge head 5. The partition plate 61 is fixed on the inner wall of the base 1, the screw 63 penetrates through the partition plate 61 and is matched with the screw sleeve 64, and the bridge head 5 can move transversely through the driving of the driver 62.

By providing the bridge head 5: a conductive head 51 fixed on the connecting rod 12, the end of the conductive head 51 is provided with a clamping head 52 matched with the insulation boss 32, and a second arc extinguishing frame 48 matched with the first arc extinguishing frame 35. The bridge head 5 mainly plays a role in conduction and arc extinction.

A method of monitoring a high voltage circuit breaker, comprising the steps of:

when the bridge head is in use, the length change of the electric telescopic rod 11 is controlled, so that the electric receiving seat 4 can be operated through the connecting rod 12, then the electric conducting arm 10 with the surface of the electric receiving seat 4 carries the bridge head 5 to deflect, the bridge head 5 moves in the process, the distance between the third arc extinguishing frame 53 and the first arc extinguishing frame 35 and the distance between the third arc extinguishing frame 53 and the second arc extinguishing frame 48 change, whether the electric arc is generated in the on-off state can be known by monitoring whether current exists between the third arc extinguishing frame 53 and the first arc extinguishing frame 35 and the second arc extinguishing frame 48 respectively, when the bridge head 5 is separated from the bridge frame 3, if the electric arc is generated between the third arc extinguishing frame 53 and the first arc extinguishing frame 35 or the second arc extinguishing frame 48 respectively, the electric arc is conducted with the third arc extinguishing frame 53 and the first arc extinguishing frame 35, the screw rod 63 moves with the screw sleeve 64 when the screw rod 63 rotates, and the traversing slide 9 moves on the surface of the base 1 until the bridge frame 3 is far away from the bridge head 5 and the electric receiving seat 4, and the bridge head is disconnected, and the electric arc is not acted if no action exists.

The device for controlling the high-voltage circuit breaker by using the electric telescopic rod 11 and the connecting rod 12 adopts electric elements such as the electric telescopic rod 11 and the like, and can realize automatic operation and remote control, thereby improving the operation efficiency and convenience of the circuit breaker. The device can rapidly realize the on-off operation of the high-voltage circuit breaker through the flexible connecting rod 12 and the transmission mechanism, thereby effectively protecting equipment and network of a power system. When the circuit is disconnected, the device designs an arc extinguishing device, so that generated electric arcs can be rapidly extinguished, the electric arcs are prevented from continuously existing, and the equipment is protected from being damaged by the electric arcs. When the circuit is disconnected, measures such as an insulating seat and an insulating gasket 33 are used, so that safety problems such as flashover and the like can be avoided when the circuit is disconnected. Through precise engineering design, the device can reliably execute the operation of the high-voltage circuit breaker, and ensure the stable operation of a power system. The automatic operation reduces the risk of manual operation, reduces the potential injury risk of operators, and improves the safety of operation. The rapid on-off and arc extinguishing functions are beneficial to reducing overload and damage of the power equipment and prolonging the service life of the equipment.

The opening and closing operation process comprises the following steps: the device drives the connecting rod 12 to move through the length change of the electric telescopic rod 11. Movement of the linkage 12 causes the transmission to correspondingly drive movement of the other components.

And (3) opening operation:

the electric telescopic rod 11 is extended, and the link 12 is pushed to move forward.

The movement of the link 12 drives the cooperation of the actuator arm 44 and the arm 43, causing the movable seat to deflect.

The deflection of the movable mount deflects the conductive mount over the surface of the second insulating mount 41.

The deflected conductive seat enables the bridge head 5 at the tail end of the conductive head 51 to move in a large-range arc track, and the butt joint between the bridge head 5 and the bridge 3 is controlled.

When the conductive head 51 approaches to the butt joint, it will first contact the conductive sheets 34 on both sides of the first insulating base 31, so as to realize power-on. The conductive head 51 is supported by the insulating boss 32 at the lower side and is protected by the insulating spacer 33 to prevent the flashover phenomenon of the downward discharge.

Simultaneously, the conductive column enters the inner wall of the first clamping seat 46, the first clamping seat 46 is electrically connected with the bridge head 5 and the bridge 3 through the conductive column, and then is electrically connected with the second clamping seat 47 through the connecting piece 45, so that on-off control is finally realized.

Closing operation:

at the beginning of the disconnection operation, the electric telescopic rod 11 is shortened, and the link rod 12 is contracted accordingly.

The contraction of the link 12 causes the actuator to push the arm 43 and the movable mount to deflect, so that the conductive mount disengages the second insulating mount 41 and the conductive tab 34.

At the same time, the conductive posts are separated from the inner wall of the first clamping seat 46, so that disconnection is realized.

During this process, arcing may occur. For rapid arc extinction, the device incorporates a first arc chute 35, a second arc chute 48 and a third arc chute 53, which are located in an externally formed arc-directing frame that helps to control and rapidly extinguish the arc.

If the presence of an arc is still detected, the device, through the cooperation of the driver 62 and the screw 63, causes the bridge head 5 to increase in distance, achieving a rapid extinguishing operation of the arc.

The working principle of the application is as follows:

when the scheme is used, the length change of the electric telescopic rod 11 drives the connecting rod 12 to move, so that the top end of the connecting rod 12 moves along with the transmission arm 44, then the transmission arm 44 moves along with the support arm 43 through the pin shaft, the support arm 43 can deflect on the surface of the second insulating seat 41 through the pin shaft along with the movable frame 42, at the moment, the movable frame 42 deflects the conductive arm 10 with the surface and simultaneously changes the angle, so that the bridge head 5 at the tail end of the conductive arm 10 moves in a large range of arc track, the bridge head 5 is controlled to be butted with the bridge frame 3, when the bridge head 5 is closely butted with the bridge frame 3, the conductive head 51 firstly contacts with the conductive sheets 34 at two sides of the first insulating seat 31 to realize electrifying, and meanwhile, the conductive head 51 is supported by the insulating boss 32, the lower part is protected by the insulating gasket 33, and the phenomenon of flashover which is downward is prevented;

when the conductive head 51 contacts with the conductive sheet 34, the conductive column enters the inner wall of the first clamping seat 46, the first clamping seat 46 is electrically connected with the bridge 3 through the conductive column and the bridge head 5, and then the first clamping seat 46 is electrically connected with the second clamping seat 47 through the connecting sheet 45, so that on-off control is realized;

when the electric arc-extinguishing device is disconnected, the connecting rod 12 is contracted by the length change of the electric telescopic rod 11, at the moment, the connecting rod 12 deflects by the movable seat under the cooperation of the transmission arm 44 and the support arm 43, the conductive seat drives the conductive head 51 to separate from the insulating seat and the conductive sheets 34 on two sides, meanwhile, the conductive column is separated from the inner wall of the first clamping seat 46, the separation is realized, the condition of an electric arc can occur at the moment, the condition that the electric arc is not rapid enough due to the fact that the conductive head 51 or the first clamping seat 46 is electrified with the electric arc can be avoided based on the arc guiding frame formed by the first arc-extinguishing frame 35, the second arc-extinguishing frame 48 and the third arc-extinguishing frame 53, when the electric arc is detected to be still present when the electric arc is moved to the maximum range, the driver 62 drives the screw 63 to rotate, so that the screw sleeve 64 drives the sideslip slide 9 to move and the distance away from the bridge head 5 can be increased, and the rapid arc-extinguishing operation of the electric arc can be realized.

Embodiment two:

as shown in fig. 6 to 8, in this embodiment, the structure of the traversing assembly 6 is improved based on the first embodiment, so as to further increase the adjustable distance between the bridge 3 and the bridge head 5, thereby forming a larger fracture, and an effect of rapid arc extinction is achieved, specifically, the traversing assembly 6 includes a driver 62, a screw 63, a screw sleeve 64 and a traversing slide 9, the bridge 3 is disposed on the traversing slide 9, the traversing slide 9 is slidably disposed on the base 1, the driver 62, the screw 63 and the screw sleeve 64 are mounted in the base 1, the driver 62 drives the screw 63 to rotate, so that the screw sleeve 4 moves in a first direction, that is, in the direction of the screw 63, in the base 1, and the screw sleeve 4 moves linearly, so that the traversing slide 9 can be driven to move in a first stage and a second stage of arc oscillation, and a critical point between the first stage and the second stage, specifically, when the traversing slide 9 is pushed by the first stage, the screw sleeve 4 moves linearly, and when the bridge head 3 moves linearly, the arc is further moved linearly, and the arc is further moved in a certain direction, and the arc is further moved, if the arc is further, the arc is further moved, and the arc is further, if the arc is moved, and the arc is moved further, and the cut is moved, and the cut, and the second stage is moved.

Specifically, a pushing block 601 is disposed in the middle of the upper end surface of the threaded sleeve 4, pushing components are disposed on two sides of the pushing block 601, the pushing components include a pushing chute 602 disposed on the upper end surface of the threaded sleeve 4 along a first direction, a pushing slide block 603 slidably disposed in the pushing chute 602, and a first elastic member 604 disposed in the pushing chute 602, the first elastic member 604 is used for enabling the pushing slide block 603 to be kept at a pushing position when pushing the traversing slide seat 9, the pushing slide block 603 is abutted against the traversing slide seat 9 when pushing the traversing slide seat 9, meanwhile, the pushing block 601 is spaced from the traversing slide seat 9 by a certain distance, a blocking block 605 is disposed on an inner wall of the base 1 at a critical point position opposite to the pushing slide block 603, the blocking block 605 can block the pushing slide block 603 from continuously moving forward when the traversing slide seat 9 enters a second stage, but the threaded sleeve 4 and the pushing block 601 can continuously move forward, the pushing block 601 is disposed to face the end surface of the traversing slide seat 9 as a pushing inclined plane 606, in this embodiment, the lower end of the partition 61 is rotatably disposed relative to the base 1, one side 607 of the partition 61 is far from the threaded sleeve 4 is disposed at a side 607, the partition 61 is disposed between the partition 61 and the partition board 61 is disposed on the side of the partition board 4, and the partition board 609 is disposed on the side of the partition board 609.

In this embodiment, the elastic force provided by the first elastic member 604 to the pushing slider 603 needs to ensure that the pushing slider 603 can only retract a small distance or not at most when pushing the traversing carriage 9 to move, at this time, the position of the pushing slider 603 relative to the pushing chute 602 is a pushing position, when the driver 62 drives the screw sleeve 64 to move forward, the pushing slider 603 will reach a critical point and abut against the blocking block 605, after which the screw sleeve 4 continues to move forward, the pushing slider 603 moves backward in the pushing chute 602 relative to the screw sleeve 4, and compresses the first elastic member.

The sliding rails 611 are arranged on two sides of the base 1, the sliding grooves 612 matched with the sliding rails 611 are arranged on two sides of the sliding seat 9, when the sliding seat 9 is matched with the sliding rails 611 through the sliding grooves 612, the sliding rails 611 can only be removed in a straight line in the first direction, but the sliding rails 611 are removed at a small distance on one side of the pushing position far away from the threaded sleeve 4 and one side of the pushing position close to the threaded sleeve 4, so that the partition plate 61 can conveniently drive the sliding seat 9 to rotate.

The side of the threaded sleeve 64 facing the partition plate 61 is provided with a push-back block 613, and the bottom of the traversing slide 9 is provided with a push-back protrusion 614 matched with the push-back block 613.

The working principle of the traversing assembly 6 in this embodiment is as follows: when the conducting rod moves to the maximum range and an arc is detected to still exist, the driver 62 drives the screw 63 to rotate forwards, so that the screw sleeve 64 moves forwards linearly and simultaneously the two pushing sliding blocks 603 on the screw sleeve move the traversing sliding seat 9 linearly, the pushing sliding blocks 603 move linearly until the pushing sliding blocks 603 are abutted against the blocking blocks 605, meanwhile, the inserting blocks 609 of the partition plates 61 are inserted into the inserting grooves 610 of the traversing sliding seat 9, a certain distance fracture is formed between the bridge 3 and the bridge head 5, if the arc is still detected, the screw sleeve 64 continues to move linearly, at the moment, the pushing sliding blocks 603 are pushed by the blocking blocks 605 to move backwards against the screw sleeve 64 and compress the first elastic piece 604, meanwhile, the pushing blocks 601 move forwards along with the screw sleeve 64 and enable the traversing sliding seat 9 to rotate forwards along with the partition plates 61 around the hinging point through the pushing inclined planes 606, and the partition plates 61 compress the second elastic piece 608 to further increase the distance of the fracture;

when the electric arc is needed to be switched on again after disappearing, the screw 63 is driven by the driver 62 to rotate reversely, so that the threaded sleeve 64 moves linearly backwards, under the action of the second elastic piece 608, the traversing slide seat 9 returns along the pushing inclined plane 606 and the partition 61, when the pushing block 601 moves backwards to the pushing position, the push-back block 613 is abutted with the push-back protrusion 614, the threaded sleeve 64 continues to move linearly backwards to pull the traversing slide seat 9 backwards so that the inserting block 609 is separated from the inserting groove 610, meanwhile, the blocking piece 605 releases the blocking of the pushing slide block 603, and under the action of the first elastic piece 604, the pushing slide block 603 returns to the pushing position, and then the threaded sleeve 64 continues to move linearly backwards to pull the traversing slide seat 9 backwards so that the horizontal position of the bridge 3 coincides with the arc-shaped movement track of the bridge head 5.

Further, a stop rod 615 is disposed on a side of the partition 61 facing the threaded sleeve 64, the second elastic member enables the partition 61 to rotate to be just abutted against the stop rod 615, at this time, the traversing carriage 9 is just located on the base 1, and the sliding rail 611 is just aligned with the sliding groove 612.

Further, the upper portion of the baffle 607 is inclined forward relative to the base 1, so that the second elastic member 608 is compressed when the baffle 61 is rotated.

Further, the baffle 61 and the baffle 607 are respectively provided with a structure of a limiting second elastic member 608, and the pushing slide block 603 and the pushing chute 602 are respectively provided with a structure of a limiting first elastic member 604, such as a groove or a protrusion adapted to the elastic members, so as to improve the stability and reliability of the motion of the mechanism.

In this embodiment, the previous movement is the movement of the sleeve 64 toward the spacer 61, and the rearward movement is the opposite direction.

The foregoing disclosure is illustrative of the present application and is not to be construed as limiting the scope of the application, which is defined by the appended claims.

Claims (9)

1. A high voltage circuit breaker, comprising:

a base (1);

a plurality of insulators (2) are sequentially stacked to form a plurality of columnar structures and are arranged on the upper surface of the base (1);

a bridge (3);

a power receiving seat (4);

the bridge frame (3) and the power receiving seat (4) are respectively arranged at the top ends of the columnar structures formed by the corresponding insulators (2), and the bridge frame (3) and the power receiving seat (4) are respectively connected with cables to form a loop;

the conductive arm (10) is arranged on the inner wall of the power receiving seat (4) and is used for conducting electric power;

a bridge head (5);

the bridge head (5) is fixed at one end of the conductive arm (10) and is electrically connected with the power receiving seat (4) through the conductive arm (10), and the bridge head (5) and the bridge frame (3) are in an arc-shaped movement track non-coincident state;

an electric telescopic rod (11);

a connecting rod (12);

one end of the connecting rod (12) is movably connected with the power connection seat (4), the other end of the connecting rod is fixed with the execution end of the electric telescopic rod (11), and the inclination of the conductive arm (10) is controlled and adjusted by the electric telescopic rod (11);

a traversing assembly (6);

the transverse moving assembly (6) is arranged on the inner wall of the base (1) and used for controlling the superposition of the horizontal position of the bridge frame (3) and the arc-shaped movement track of the bridge head (5).

2. A high voltage circuit breaker according to claim 1, characterized in that the insulator (2) is provided with a connection flange (14) at both ends and that adjacent insulators (2) are fixed by means of the connection flange (14).

3. The high-voltage circuit breaker according to claim 1, characterized in that the bridge frame (3) comprises a first insulation seat (31) fixed with the corresponding insulator (2), an insulation boss (32) is arranged on the inner wall of the first insulation seat (31), a plurality of conductive sheets (34) are arranged on two sides of the insulation boss (32), the conductive sheets (34) are fixed on the inner wall of the first insulation seat (31), an insulation gasket (33) is fixedly connected on the inner wall of the first insulation seat (31), and a first arc extinguishing frame (35) is arranged on two sides of the first insulation seat (31).

4. The high-voltage circuit breaker according to claim 2, characterized in that an overhead seat (7), a mounting seat (8) and a traversing slide seat (9) for mounting a columnar mechanism formed by insulators (2) are arranged on the upper surface of the base (1), the overhead seat (7) and the mounting seat (8) are fixedly connected with the upper surface of the base (1), and the traversing slide seat (9) is limited and slides on two sides of the base (1).

5. A high voltage circuit breaker according to claim 3, characterized in that the bridge head (5) comprises a conductive head (51) fixed with the connecting rod (12), the end of the conductive head (51) is provided with a clamping head (52) matched with the insulation boss (32), and the surface of the conductive head (51) is fixedly connected with a second arc extinguishing frame (48) matched with the first arc extinguishing frame (35).

6. A high voltage circuit breaker according to claim 1, characterized in that the traversing assembly (6) comprises two partition boards (61) fixed on the inner wall of the base (1), a screw (63) is jointly penetrated and rotated between the two partition boards (61), one end of the screw (63) is provided with a driver (62) for driving the screw, the driver (62) is fixed on one side of the corresponding partition board (61), a threaded sleeve (64) is matched on the surface of the screw (63), and the threaded sleeve (64) is fixedly connected with the traversing slide seat (9).

7. The high-voltage circuit breaker according to claim 5, wherein the electrical connection base (4) comprises a second insulation base (41) fixed with two corresponding insulators (2), a movable frame (42) is movably connected to the surface of the second insulation base (41) through a pin shaft, the movable frame (42) is fixedly connected with the bottom end of the conductive arm (10), a supporting arm (43) is further fixed to the top end of the movable frame (42), a transmission arm (44) is movably connected to the supporting arm (43) through a pin shaft, a connecting piece (45) is fixedly connected to the inner wall of the transmission arm (44) through a pin shaft and the top end of the connecting rod (12), a first clamping base (46) is fixedly connected to the upper surface of the connecting piece (45), a second clamping base (47) is fixedly connected to the lower surface of the connecting piece (45), and a third arc extinguishing frame (53) is arranged on two sides of the second insulation base (41).

8. A high voltage circuit breaker according to claim 1, characterized in that the right end of the base (1) is fixed with a stand (13), and the electric telescopic rod (11) is movably connected to the top end of the solid through a pin.

9. A method of monitoring a high voltage circuit breaker according to any one of claims 1-8, comprising the steps of:

when the electric arc bridge is used, the electric connection seat (4) can be operated through the control of the length change of the electric telescopic rod (11), the conductive arm (10) with the surface of the electric connection seat (4) is then deflected by the bridge head (5), the bridge head (5) moves in the process, the distance between the third arc extinguishing frame (53) and the first arc extinguishing frame (35) and the distance between the third arc extinguishing frame (53) and the second arc extinguishing frame (48) are changed, whether the electric arc exists in the on-off state or not can be known by monitoring whether current exists between the third arc extinguishing frame (53) and the first arc extinguishing frame (35) and the second arc extinguishing frame (48), when the bridge head (5) is separated from the bridge frame (3), if the third arc extinguishing frame (53) and the first arc extinguishing frame (35) or the second arc extinguishing frame (48) generate current to form conduction, the screw rod (64) moves by starting the driver (62) when the screw rod (63) rotates, and then the sliding seat (9) moves along when the sliding seat (9) moves, and the electric arc is not separated from the bridge head (3), and the electric arc is not separated from the bridge seat (3).