阅读说明：本技术 风电一体化断路器 (Wind-power integrated circuit breaker ) 是由 黄伟 李博文 于 2021-10-11 设计创作，主要内容包括：本发明公开一种风电一体化断路器,涉及断路器技术领域,包括框架、固封极柱、隔离刀、接地刀、进线铜牌和出线铜牌；固封极柱设于框架上部,隔离刀顶部设于固封极柱的一端,隔离刀底部用于与进线铜牌连接；进线铜牌设置于框架一侧,出线铜牌设置于框架另一侧；接地刀顶部设置于框架下部,接地刀用于与出线铜牌连接。本发明中的风电一体化断路器,外形新颖、结构紧凑、安全可靠、操作简便、安装维护方便,具有明显的隔离断口,满足五防联锁功能,并具有足够的动稳定性和热稳定性,更安全、设备、人员、财产能更好的得到保护,能更好的为客户解决安装和维护的难题,完全解决了高压室电器部件布局凌乱、搭接面多、安全隐患高、成本高等难题。(The invention discloses a wind-power integrated circuit breaker, which relates to the technical field of circuit breakers and comprises a frame, a solid-sealed pole, an isolation knife, a grounding knife, a wire inlet copper plate and a wire outlet copper plate; the solid-sealed polar pole is arranged at the upper part of the frame, the top of the isolation knife is arranged at one end of the solid-sealed polar pole, and the bottom of the isolation knife is used for being connected with the wire inlet copper plate; the incoming line copper plate is arranged on one side of the frame, and the outgoing line copper plate is arranged on the other side of the frame; the top of the grounding knife is arranged on the lower part of the frame, and the grounding knife is used for being connected with the outgoing copper plate. The wind-power integrated circuit breaker has the advantages of novel appearance, compact structure, safety, reliability, simplicity and convenience in operation, convenience in installation and maintenance, obvious isolation fracture, capability of meeting the five-prevention interlocking function, enough dynamic stability and thermal stability, safety, better protection of equipment, personnel and property, capability of better solving the problems of installation and maintenance for customers, and capability of completely solving the problems of messy layout of electric appliance parts in a high-voltage chamber, multiple lap joint surfaces, high potential safety hazard, high cost and the like.)

1. The wind-power integrated circuit breaker is characterized by comprising a frame, a solid-sealed pole, an isolation knife, a grounding knife, an incoming line copper plate and an outgoing line copper plate; the solid-sealed polar pole is arranged on the upper part of the frame, the top of the isolation knife is rotatably arranged at one end of the solid-sealed polar pole, and the bottom of the isolation knife is used for being connected with the wire inlet copper plate; the incoming line copper plate is arranged on one side of the frame, and the outgoing line copper plate is arranged on the other side of the frame; the top of the grounding knife is rotatably arranged on the lower part of the frame, and the grounding knife is used for being connected with the outgoing line copper plate.

2. The wind-powered integrated circuit breaker according to claim 1, wherein the isolation blade and the grounding blade are moved synchronously by an operating mechanism.

3. The wind-powered integrated circuit breaker according to claim 2, wherein the operating mechanism comprises a grounding shaft, a separation shaft and a transmission mechanism; one end of the grounding knife is fixedly connected with the grounding shaft, and the other end of the grounding knife is used for being electrically connected with the wire inlet copper plate; the isolating shaft is used for controlling the connection and disconnection of the isolating knife and the outgoing copper plate; the transmission mechanism is used for enabling the isolating shaft and the grounding shaft to rotate simultaneously.

4. The wind-powered electricity generation integration circuit breaker of claim 3, characterized in that the transmission mechanism comprises an isolation linkage crank arm, a connecting rod and a grounding linkage crank arm; isolation linkage connecting lever one end with keep apart a fixed connection, ground connection linkage connecting lever one end with ground connection axle fixed connection, the connecting rod both ends respectively with the isolation linkage connecting lever other end with ground connection linkage connecting lever other end rotatable coupling.

5. The wind-powered electricity generation integration circuit breaker of claim 4, characterized in that still be provided with the isolation turning arm on the isolation axle, isolation turning arm bottom with the isolation axle is connected, one side of keeping away from the isolation sword above the isolation turning arm is connected with the bottom of an isolation pressure spring that resets, the rotatable setting in top of isolation pressure spring that resets on the frame.

6. The wind-power integrated circuit breaker according to claim 1, wherein a current transformer is arranged on the other side of the frame, and the outgoing copper plate is arranged at the end of the current transformer and electrically connected with the embedded pole through a connecting copper plate.

7. The wind-power integrated circuit breaker according to claim 1, wherein an insulating pull rod is arranged between the other end of the embedded pole and the frame.

8. The wind-power integrated circuit breaker according to claim 1, wherein a lightning arrester is arranged between the incoming line copper plate and the frame, a lightning arrester calculator is arranged at one end of the frame, and the lightning arrester calculator is connected with the lightning arrester.

Technical Field

The invention relates to the technical field of circuit breakers, in particular to a wind power integrated circuit breaker.

Background

In the protection configuration of the high-voltage side of a transformer of a terminal substation, a box-type substation, ring network power supply and the like, the wind power integrated circuit breaker-combined electrical apparatus special for new energy is quite wide and is used for breaking rated current, overload current and short-circuit current. The wind-power integrated circuit breaker-combined electrical apparatus has the functions of protecting the transformer from overload and preventing equipment from operating in a phase failure mode, is particularly suitable for controlling and protecting a looped network power supply unit and a terminal transformer, and is the best choice for power transmission network equipment of a wind generating set.

The prior technical conditions are low in safety factor, large in product size, large in land area and high in overall cost.

Disclosure of Invention

In order to solve the technical problems, the invention provides a wind power integrated circuit breaker, which is integrated into an integrated circuit breaker by six parts of high-efficiency integration (a circuit breaker, a disconnecting switch, a grounding switch, a current transformer, a lightning arrester and an electromagnetic lock), so that the aims of protecting environment, saving energy and providing safety level are fulfilled.

In order to achieve the purpose, the invention provides the following scheme:

the invention provides a wind-power integrated circuit breaker, which comprises a frame, a solid-sealed pole, an isolation knife, a grounding knife, an incoming line copper plate and an outgoing line copper plate, wherein the isolation knife is arranged on the frame; the solid-sealed polar pole is arranged on the upper part of the frame, the top of the isolation knife is rotatably arranged at one end of the solid-sealed polar pole, and the bottom of the isolation knife is used for being connected with the wire inlet copper plate; the incoming line copper plate is arranged on one side of the frame, and the outgoing line copper plate is arranged on the other side of the frame; the top of the grounding knife is rotatably arranged on the lower part of the frame, and the grounding knife is used for being connected with the outgoing line copper plate.

Optionally, the isolation knife and the grounding knife move synchronously through an operating mechanism.

Optionally, the operating mechanism includes a ground shaft, a separation shaft and a transmission mechanism; one end of the grounding knife is fixedly connected with the grounding shaft, and the other end of the grounding knife is used for being electrically connected with the wire inlet copper plate; the isolating shaft is used for controlling the connection and disconnection of the isolating knife and the outgoing copper plate; the transmission mechanism is used for enabling the isolating shaft and the grounding shaft to rotate simultaneously.

Optionally, the transmission mechanism comprises an isolation linkage crank arm, a connecting rod and a grounding linkage crank arm; isolation linkage connecting lever one end with keep apart a fixed connection, ground connection linkage connecting lever one end with ground connection axle fixed connection, the connecting rod both ends respectively with the isolation linkage connecting lever other end with ground connection linkage connecting lever other end rotatable coupling.

Optionally, an isolation crank arm is further arranged on the isolation shaft, the bottom of the isolation crank arm is connected with the isolation shaft, one side, far away from the isolation knife, of the upper portion of the isolation crank arm is connected with the bottom of an isolation reset pressure spring, and the top of the isolation reset pressure spring is rotatably arranged on the frame.

Optionally, a current transformer is arranged on the other side of the frame, and the outgoing line copper plate is arranged at the end of the current transformer and electrically connected with the solid-sealed pole through a connecting copper plate.

Optionally, an insulating pull rod is arranged between the other end of the solid-sealed pole and the frame.

Optionally, an arrester is arranged between the incoming line copper plate and the frame, an arrester calculator is arranged at one end of the frame, and the arrester calculator is connected with the arrester.

Compared with the prior art, the invention has the following technical effects:

the wind-power integrated circuit breaker has the advantages of novel appearance, compact structure, safety, reliability, simple and convenient operation, convenient installation and maintenance (the high-voltage sides are all integrated into a whole), obvious fracture isolation, five-prevention interlocking function satisfaction, and enough dynamic stability and thermal stability.

The existing isolation knife and the grounding knife are operated independently and singly, so that accidents are easy to happen, and five-prevention interlocking is difficult to realize and is complex. Often resulting in loss of personnel and equipment for mishandling/mishandling.

The integrated wind power integrated three-station operating mechanism completely avoids the risks, the five-prevention interlocking is more reliable, the operation is simple, the isolation knife and the grounding knife are integrated, the isolation knife and the grounding knife must be separated, the grounding knife and the grounding knife must be separated, the isolation knife and the grounding knife share one output shaft, and the isolation knife and the grounding knife share one interlocking relationship. The defects and risks in the prior art are completely avoided, and the reliability, the practicability and the safety are completely realized.

The wind power integrated circuit breaker-combined electrical apparatus integrated circuit breaker, isolator, earthing switch, current transformer, arrester and electromagnetic lock. The high-voltage chamber electric appliance interlocking device mainly considers the miniaturization of products, is more reliable in operation, is safer in five-prevention interlocking, can better protect equipment, personnel and property, can better solve the problems of installation and maintenance for customers, and completely solves the problems of messy layout of electric appliance parts in a high-voltage chamber, multiple overlapping surfaces, high potential safety hazards, high cost and the like.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic diagram of a left side structure of the wind power integrated circuit breaker of the present invention;

FIG. 2 is a schematic diagram of a forward structure of the wind power integrated circuit breaker of the present invention;

FIG. 3 is a right side schematic structural view of the wind power integrated circuit breaker of the present invention;

FIG. 4 is a schematic diagram of a backward structure of the wind power integrated circuit breaker of the present invention;

FIG. 5 is a schematic perspective view of the wind power integrated circuit breaker of the present invention;

FIG. 6 is a schematic perspective view of another view angle of the wind power integrated circuit breaker of the present invention;

fig. 7 is a schematic structural diagram of a control panel in the wind power integrated circuit breaker of the present invention;

fig. 8 is a schematic structural diagram of an operating mechanism in the wind power integrated circuit breaker of the present invention.

Description of reference numerals: 1. solid-sealing the pole; 2. an upper wire outlet seat; 3. an isolation pull rod; 4. an isolation knife; 5. a sensor; 6. a lower wire outlet seat; 7. feeding a copper plate; 8. an insulating pull rod; 9. the main shaft is linked with a crank arm; 10. a contact pressure spring; 11. a support plate; 12. connecting a copper plate; 13. a copper plate for outgoing lines; 14. a wire outlet clip; 15. a grounding reset pressure spring; 16. a grounding knife; 17. a spring module operating mechanism; 18. isolating and resetting the pressure spring; 19. isolating the limit screw; 20. a grounding limit screw; 21. a grounding limit crank arm; 22. oil buffering; 23. a roller; 24. a main shaft; 25. a frame; 26. isolating the shaft; 27. a ground shaft; 28. the grounding knife is in short connection with the row; 29. isolating the linkage crank arm; 30. a connecting rod; 31. a grounding linkage crank arm; 32. an electromagnetic lock; 33. soft connection; 34. a current transformer; 35. a lightning arrester calculator; 36. a lightning arrester; 37. a brake separating button; 38. a closing button; 39. opening and closing indication; 40. an energy storage indication; 41. a counter; 42. energy storage operation; 01. bending a plate; 02. isolating the crank arm; 04. a small pressure spring of the isolating knife; 05. a small pressure spring of the grounding knife; 06. and (4) a wire feeding clamp.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 8, the present embodiment provides a wind power integrated circuit breaker, which includes a frame 25, a solid-sealed pole 1, an isolation knife 4, a grounding knife 16, an incoming line copper plate 7, and an outgoing line copper plate 13; the solid-sealed polar pole 1 is arranged at the upper part of the frame 25, the top of the isolation knife 4 is rotatably arranged at one end of the solid-sealed polar pole 1, and the bottom of the isolation knife 4 is used for being connected with the incoming line copper plate 7; the incoming line copper plate 7 is arranged on one side of the frame 25, and the outgoing line copper plate is arranged on the other side of the frame 25; the top of the grounding knife 16 is rotatably arranged on the lower part of the frame 25, and the grounding knife 16 is used for being connected with the outgoing line bronze medal.

The isolating blade 4 and the grounding blade 16 move synchronously through an operating mechanism. Specifically, the operating mechanism comprises an isolating linkage crank arm 29, a connecting rod 30 and a grounding linkage crank arm 31; isolation linkage connecting lever 29 one end with separate axle 26 fixed connection, ground connection linkage connecting lever 31 one end with ground connection 27 fixed connection, connecting rod 30 both ends respectively with the isolation linkage connecting lever 29 other end with ground connection linkage connecting lever 31 other end rotatable coupling. The isolating shaft 26 is rotated by external force output, the isolating shaft 26 rotates to drive the isolating linkage connecting lever 29 to rotate around the isolating shaft 26, and the grounding shaft 27 rotates simultaneously through the connecting rod 30 and the grounding linkage connecting lever 31, so that the grounding knife 16 and the isolating knife 4 rotate simultaneously, the grounding knife 16 must be separated when the isolating knife 4 is switched on, the isolating knife 16 must be separated when the isolating knife 16 is switched on, and the interlocking of the isolating knife 4 and the grounding knife 16 is achieved.

An isolation crank arm 02 is further arranged on the isolation shaft 26, the bottom of the isolation crank arm 02 is connected with the isolation shaft 26, one side, far away from the isolation knife 4, of the upper portion of the isolation crank arm 02 is connected with the bottom of an isolation reset pressure spring 18, and the top of the isolation reset pressure spring 18 is rotatably arranged on the circuit breaker. More specifically, the top of the isolation reset pressure spring 18 is connected with a frame 25 of the circuit breaker through a bent plate 01, and the isolation knife 4 is kept at the position through the pretightening force of the isolation reset pressure spring 18 when the isolation knife 4 is switched on or switched off, so that the isolation knife 4 is prevented from being influenced by external force to normally work.

The inlet wire is connected with the inlet wire clamp 06, and the inlet wire clamp 06 is arranged on the inlet wire copper plate 7. The wire feeding clamp 06 is provided with a small pressure spring 05 of the grounding knife, and the small pressure spring 05 of the grounding knife is sleeved on a bolt. Furthermore, a nut is arranged on the bolt, and the pretightening force of the small pressure spring 05 of the grounding knife is changed by adjusting the position of the nut on the bolt, so that the contact pressure between the inlet wire and the grounding knife 16 is adjusted.

The outgoing line is connected with an outgoing line copper plate 13, and the outgoing line copper plate 13 is positioned below the isolation knife 4. The top of the isolation knife 4 is rotatably arranged on the circuit breaker, the bottom of the isolation knife 4 is used for being connected with the outgoing line, the middle of the isolation knife 4 is connected with one end of an isolation pull rod 3, and the other end of the isolation pull rod 3 is connected with the isolation shaft 26. The top of the isolation knife 4 is provided with an isolation knife small pressure spring 04, and the isolation knife small pressure spring 04 is sleeved on a bolt. A nut is arranged on the bolt, and the pretightening force of the small pressure spring 04 of the isolating knife is changed by adjusting the position of the nut on the bolt, so that the contact pressure between the outgoing line and the isolating knife 4 is adjusted. Furthermore, the isolation knife 4 is composed of two metal plates arranged in parallel, the tops of the two metal plates are rotatably arranged on a frame 25 of the circuit breaker through bolts, the pretightening force of the small pressure spring 04 of the isolation knife is adjusted through adjusting the position of the nut, and then the minimum gap between the two metal plates is changed, so that when the bottom of each metal plate clamps the outgoing copper plate 13, the clamping force of the two metal plates on the outgoing copper plate 13 is changed.

The operating mechanism in this embodiment operates as follows:

the isolating shaft 26 is rotated by external force, the isolating shaft 26 rotates to push the isolating knife 4 through the isolating pull rod 3 to enable the isolating knife 4 to rotate, and the isolating knife 4 is separated from the outgoing copper plate 13 to complete the opening of the isolating knife 4; meanwhile, the isolation shaft 26 rotates to enable the grounding shaft 27 to rotate through the isolation linkage crank arm 29, the connecting rod 30 and the grounding linkage crank arm 31, the grounding shaft 27 drives the grounding knife 16 to rotate, the bottom of the grounding knife 16 rotates to the wire inlet clamp 06, and cooperation of the grounding knife 16 is completed.

The external force originates from a spring module operating mechanism 17, the spring module operating mechanism 17 being a high voltage switching spring energy storing motor commonly used in circuit breakers.

In a more specific embodiment, a current transformer 34 is arranged on the other side of the frame 25, and the outgoing copper plate is arranged at the end of the current transformer 34 and electrically connected with the embedded pole 1 through a connecting copper plate 12. An insulating pull rod 8 is arranged between the other end of the solid-sealed polar pole 1 and the frame 25. The incoming line copper plate 7 with be provided with arrester 36 between the frame 25, frame 25 one end is provided with arrester calculator 35, arrester calculator 35 with arrester 36 is connected.

Furthermore, a head-out pressure spring 10 is arranged at the end part of the solid-sealed polar pole 1, a support plate 11 is arranged outside the head-out pressure spring 10, and a main shaft linkage crank arm 9 is arranged between the support plate 11 and the end part of the insulating pull rod 8; the upper end of the connecting copper plate 12 is connected with the supporting plate 11. The end part of the incoming line copper plate 7 is provided with a sensor 5.

The wind-power integrated circuit breaker in the embodiment has the following working principle:

firstly, the wind-power integrated circuit breaker is installed in a high-voltage chamber of a box-type substation, the grounding knife 16 is in an open state, the isolation knife 4 is in a closing state, the isolation reset spring 18 is used for ensuring the isolation knife 4 to be reliably contacted, meanwhile, the grounding knife 16 is in a switching-off state, and the grounding reset spring 18 is used for ensuring the grounding knife 16 to be in a switching-off state. And a spring module operating mechanism 17 in the wind power integrated circuit breaker is in a closing state. Wind-powered electricity generation integration circuit breaker five-prevention interlocking is in the power supply position and just can satisfy the power supply condition, and electromagnetic lock 32 is in the effect that the state played the protection on the lock simultaneously, has accomplished one of high-pressure five-prevention and has prevented that electrified mistake from going into electrified compartment.

A power transmission process: the incoming line copper plate 13 obtains high-voltage current output by a front-end transformer, the connecting copper plate 12 on a current transformer 34 fixed on the frame 25 passes through and is fixed on a flexible connection 33 on a movable end of the solid-sealed polar pole 1 to the movable end of the solid-sealed polar pole 1, the whole solid-sealed polar pole 1 is switched on by a breaker to conduct current to a static end of the solid-sealed polar pole 1, and then to an upper outgoing line seat 2 and an isolation knife 4 and then to an outgoing line copper plate 7 through a lower outgoing line seat 6 on a sensor 5 fixed on the frame 25 to complete the whole power transmission engineering.

And (3) a power-off process: wind-powered electricity generation integration circuit breaker spring module operating device 17 is in the state of separating brake, electromagnetic lock 32 electromagnetic lock coil is electrified, electromagnetic lock 32 can be opened, interlock on the spring module operating device 17 that opens circuit just can be stirred test position B department from operating position A and just can operate isolator and earthing switch, it drives isolation linkage connecting lever 29 to separate off axle 26 through operating handle operation, connecting rod 30, ground connection linkage connecting lever 31, earthing shaft 27, keep apart the closing of sword 4 action earthing switch, guarantee earthing switch 16 reliable connection work through earthing reset spring 15. When the isolation shaft 26 is rotated, the isolation pull rod 3 and the isolation knife 4 are driven to complete the opening of the isolation knife 4, and the isolation is ensured to be in an opening state through the isolation return spring 18. And the power-off process is completed at the same time.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.