CN213845089U - High-voltage switchgear - Google Patents
High-voltage switchgear Download PDFInfo
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- CN213845089U CN213845089U CN202022658036.2U CN202022658036U CN213845089U CN 213845089 U CN213845089 U CN 213845089U CN 202022658036 U CN202022658036 U CN 202022658036U CN 213845089 U CN213845089 U CN 213845089U
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- 230000009471 action Effects 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000033001 locomotion Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract description 2
- 238000004088 simulation Methods 0.000 description 44
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- 238000012423 maintenance Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model relates to a high-voltage switch equipment, fracture structure, operating mechanism, transmission structure and synchro switch, transmission structure include near the drive pivot that fracture structure set up on the transmission path between operating mechanism and fracture structure, the drive pivot drives the motion of insulating pull rod under the operating mechanism effect, and then drives fracture structure divide-shut brake; the synchronous switch comprises a simulated moving contact and a simulated static contact, the simulated moving contact is in transmission connection with the driving rotating shaft, so that the synchronous switch and the fracture structure can be synchronously opened and closed, and the simulated moving contact and the simulated static contact are used for being electrically connected with the mechanical characteristic analyzer. The mechanical characteristic analyzer is used for measuring the switching signal of the synchronous switch, so that technical parameters such as switching-on and switching-off time, synchronism and reclosing time of the high-voltage switchgear can be obtained, the synchronous switch is arranged on a transmission path and close to a fracture structure, measurement data are accurate, and technical characteristics of the high-voltage switchgear can be accurately reflected.
Description
Technical Field
The utility model relates to a high tension switchgear.
Background
The high-voltage circuit breaker mainly plays a role in closing and opening load current of a line, timely cutting off a fault circuit when a fault occurs, preventing the accident from expanding and influencing the electricity utilization safety of the whole power grid, and plays an important protection role in the operation of the power grid. The high-voltage circuit breaker comprises a fracture structure, an operating mechanism and a transmission structure, wherein the operating mechanism can drive a moving contact of the fracture structure to perform switching-on and switching-off actions through the transmission structure, and an insulating pull rod which is directly connected with the moving contact and used for pushing and pulling the moving contact to perform switching-on and switching-off actions is arranged in the transmission structure.
At present, the detection items such as the closing and opening capabilities of the high-voltage circuit breaker can be detected only in a special laboratory, the mechanical characteristics of the circuit breaker in live operation cannot be accurately detected no matter in factory inspection or in the subsequent power grid operation process, the problem of operating the high-voltage circuit breaker in the power grid cannot be found in advance according to the current mechanical characteristics of the high-voltage circuit breaker, the operation stability of the high-voltage circuit breaker is not guaranteed, and the risk of power grid faults caused by poor performance of the high-voltage circuit breaker is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high tension switchgear, can solve the switchgear among the prior art and can't carry out the problem of accurate measurement to technical parameter such as closing time when live working.
The utility model discloses a high tension switchgear adopts following technical scheme:
high voltage switchgear comprising:
the fracture structure, the operating mechanism and the transmission structure which is transmitted between the operating mechanism and the fracture structure;
the transmission structure comprises a driving rotating shaft which is arranged on a transmission path between the operating mechanism and the fracture structure and close to the fracture structure, and the driving rotating shaft drives the insulating pull rod to move under the action of the operating mechanism so as to drive the fracture structure to be switched on and off;
the high-voltage switchgear further comprises:
the synchronous switch comprises a simulated moving contact and a simulated static contact, the simulated moving contact is in transmission connection with the driving rotating shaft, so that the synchronous switch and the fracture structure can be synchronously opened and closed, and the simulated moving contact and the simulated static contact are used for being electrically connected with the mechanical characteristic analyzer.
Has the advantages that: the utility model discloses a high tension switchgear, during the use, the drive pivot drives the moving contact motion under the operating mechanism effect, realizes fracture structure divide-shut brake, meanwhile, the simulation moving contact is connected with drive pivot transmission to make the synchronous switch and the synchronous switching of fracture structure with the cooperation of simulation static contact. The synchronous switch can transmit a switch signal which is the same as that of the fracture structure to the mechanical characteristic measuring instrument, technical parameters such as switching-off time, switching-on time and synchronism of the high-voltage switch equipment can be measured, the driving rotating shaft is located on one side, close to the fracture structure, of a transmission path between the operating mechanism and the fracture structure, synchronism between the driving rotating shaft and the fracture structure is good, measuring errors caused by the transmission path can be reduced, and technical characteristics of the fracture structure can be reflected accurately. By adopting the high-voltage switch equipment, whether the mechanical characteristics are qualified or not can be detected in an electrified way when the high-voltage switch equipment leaves factory for inspection, online monitoring can be realized when the network runs, the problem of running the high-voltage switch equipment on the network can be found in advance, the maintenance cost is reduced, the use stability of the high-voltage switch equipment is improved, the reduction of power grid faults caused by poor performance of the high-voltage switch equipment and the guarantee of power utilization safety are facilitated, and the intelligent level of the power equipment is further improved.
Furthermore, the driving rotating shaft is in transmission connection with the simulation moving contact through a crank sliding block transmission structure, and the simulation moving contact directly moves in a reciprocating mode along with the sliding block or serves as the sliding block of the crank sliding block transmission structure to directly move in the reciprocating mode and is matched with the simulation static contact plug bush.
Has the advantages that: the rotation of the driving rotating shaft is better converted into the reciprocating motion of the simulated moving contact through the crank block structure, the crank block structure is simpler, and the processing is more convenient; the simulation moving contact and the simulation static contact are matched closely and stably, poor contact and looseness are not easy to generate in the synchronous switch, and the durability is good.
Furthermore, the crank sliding block structure comprises a crank rotating along with the driving rotating shaft and a connecting rod connecting the crank and the sliding block, and the length of the crank or the connecting rod is adjustable.
Has the advantages that: the consistency of the synchronous switch and the fracture structure is realized by adjusting the length, and the adjustment is convenient.
Furthermore, the length of the connecting rod is adjustable, the connecting rod comprises a front connecting section, a rear connecting section and a thread adjusting section, and the thread adjusting section is connected between the front connecting section and the rear connecting section in series and is connected with the front connecting section and the rear connecting section in a threaded manner.
Has the advantages that: the length of the connecting rod can be adjusted through thread matching, and the length of the connecting rod can be adjusted more conveniently and accurately.
Furthermore, the connecting rod is connected with the sliding block through a spherical hinge, the length of the connecting rod is adjustable, the connecting rod comprises a front section and a rear section which are in threaded connection, and the connecting rod extends or shortens when screwing one section connected with the sliding block.
Has the advantages that: the degree of freedom of movement is high when the sliding block moves, so that the simulation moving contact and the simulation static contact are ensured to be fully contacted and matched, and the loss generated in the operation process of the simulation static contact and the simulation moving contact can be reduced; the length of the connecting rod is adjustable through thread matching, and the length of the connecting rod is more convenient and accurate to adjust.
Furthermore, the simulation static contact is of a pipe sleeve structure, the simulation moving contact forms a sliding block of a crank sliding block structure, the simulation static contact forms a guide rail for guiding the sliding block, and one of the simulation moving contact or the simulation static contact is an insulating section and a conducting section in the length direction.
Has the advantages that: when the moving contact is simulated to slide from the insulating section to the conducting section, the synchronous switch is just closed, and when the moving contact is simulated to slide from the conducting section to the insulating section, the synchronous switch is just separated; by adopting the structure, the number of the internal parts of the synchronous switch is small, and the structure is simple.
Further, the high voltage switchgear includes an angular displacement sensor mounted on the driving shaft.
Has the advantages that: after the angular displacement sensor is installed, more mechanical characteristic parameters such as opening speed and closing speed of the high-voltage switch equipment can be detected.
Drawings
Fig. 1 is a schematic view of a partial structure of embodiment 1 of the high voltage switchgear of the present invention (the operating mechanism is not shown);
in fig. 1: 1-static contact; 2-moving contact; 3-output crank arm; 4-insulating pull rod; 5-driving the rotating shaft; 6-crank; 7-an insulating connecting rod; 8-simulating a moving contact; 9-simulating a static contact; 91-an insulating section; 92-conductive segments.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the present invention are described in further detail below with reference to examples.
The utility model discloses a high tension switchgear's embodiment 1:
the utility model discloses a high tension switchgear, as shown in fig. 1, including casing, operating mechanism, fracture structure and the transmission structure of transmission connection between operating mechanism and fracture structure, transmission structure, operating mechanism and fracture structure all are located the inside of casing. The fracture structure comprises a fixed contact 1 and a movable contact 2, the transmission structure comprises a driving rotating shaft 5 installed on the shell, the driving rotating shaft 5 can rotate under the output action of the operating mechanism, the driving rotating shaft 5 is arranged close to the fracture structure on a transmission path between the operating mechanism and the fracture structure, in other words, the driving rotating shaft 5 is located at the tail end of the transmission structure, and transmission elements between the driving rotating shaft and the fracture structure are few.
Based on a coordinate system shown in fig. 1, a driving rotating shaft 5 extends along the Y direction, an output crank arm 3 capable of rotating along with the driving rotating shaft 5 is fixedly arranged on the driving rotating shaft 5, the other end of the output crank arm 3 is hinged with an insulating pull rod 4, and the insulating pull rod 4 is hinged with a moving contact 2 of a fracture structure. The output crank arm 3 is perpendicular to the driving rotating shaft 5 and is positioned in a plane where the X axis and the Z axis are intersected. The output crank arm 3 can be driven to rotate in the rotating process of the driving rotating shaft 5, and then the insulating pull rod 4 pushes and pulls the moving contact 2 to perform opening and closing actions.
The high-voltage switch equipment is provided with a synchronous switch which can be opened and closed together with the fracture structure at the position of the driving rotating shaft. The synchronous switch comprises a simulation fixed contact 9 and a simulation moving contact 8, as shown in fig. 1, the simulation moving contact 8 and the simulation fixed contact 9 are both located in a plane where an X axis and a Z axis intersect. The analog static contact 9 is of a pipe sleeve structure and is arranged on the shell. The simulation moving contact 8 is in transmission connection with the driving rotating shaft 5 through a crank slider structure, a crank 6 which can rotate along with the driving rotating shaft 5 is fixedly connected to the driving rotating shaft 5, the crank 6 is connected with the simulation moving contact 8 through an insulating connecting rod 7, the crank 6 is hinged to the insulating connecting rod 7, and the other end of the insulating connecting rod 7 is in spherical hinge fit with the simulation moving contact 8. The simulation moving contact 8 forms a slider of a crank slider structure, is positioned inside the simulation static contact 9 and can reciprocate and move directly under the guiding action of the simulation static contact 9. The analog static contact 9 forms a guide rail for guiding the analog moving contact 8 to move straightly.
The simulation static contact 9 is provided with a conducting section 92 and an insulating section 91 along the length direction, and the junction between the two is just the rigid dividing point and the rigid combining point of the synchronous switch, when in use, the simulation moving contact 8 can slide in the simulation static contact 9, when the simulation moving contact 8 slides from the insulating section 91 to the conducting section 92, the synchronous switch is switched on, otherwise, the synchronous switch is switched off.
The actual operation process of the high-voltage switch is as follows: when the driving rotating shaft 5 rotates anticlockwise, the output crank arm 3 drives the insulating pull rod 4 to pull down the moving contact 2, the fracture structure is switched off, meanwhile, the crank 6 rotates anticlockwise together with the driving rotating shaft 5, the moving contact 8 moves rightwards, the moving contact slides from the conductive section 92 to the insulating section 91, and the synchronous switch is switched off; when the crank arm 5 rotates clockwise, the output crank arm 3 drives the insulating pull rod 4 to push the contact 2, the fracture structure is switched on, meanwhile, the crank 6 and the driving rotating shaft 5 rotate clockwise, the simulation moving contact 8 moves leftwards, the simulation moving contact slides from the insulating section 91 to the conducting section 92, and the synchronous switch is switched on. In this embodiment, the simulated moving contact is in spherical hinge fit with the connecting rod 7, so that the simulated moving contact 8 can automatically adjust the posture when in contact fit with the simulated static contact 9, and the simulated moving contact 8 is ensured to be in good contact fit with the simulated static contact 9.
Two signal lines are led out from the conductive segments 92 of the simulation moving contact 8 and the simulation static contact 9, the signal lines are connected to the simulation information input end of a mechanical characteristic tester, a synchronous switch is adjusted, the synchronous switch also just reaches a rigid joint point when a fracture structure of the high-voltage switch device reaches the rigid joint point, the high-voltage switch device and the synchronous switch output synchronous switch signals in the subsequent live operation process, the mechanical characteristic tester measures the switch signals of the synchronous switch, and the technical parameters such as the switching-on and switching-off time, the synchronism, the reclosing time and the like of the high-voltage switch device can be obtained.
In the embodiment, the length of the insulating connecting rod 7 is adjustable, the insulating connecting rod 7 comprises a front section and a rear section (not shown in the figure) which are mutually inserted and connected in a threaded manner along the length direction, and the length of the insulating connecting rod 7 can be adjusted by screwing one section which is connected with the analog moving contact 8 through a spherical hinge pair. Before high tension switchgear leaves the factory, realize the uniformity of synchronous switch and fracture structure through the length of adjusting insulating connecting rod 7, specific regulation step is: the moving contact and the static contact are connected with a detection instrument, so that the fracture structure is switched on and off, the fracture structure is kept at the current position when the fracture structure just reaches the position of the just-switched point or the just-switched point, the length of the insulation connecting rod 7 is adjusted, the simulated moving contact 8 just reaches the junction of the conductive section and the insulation section, and the adjustment is completed. Indeed, in other embodiments, other elements of the synchronous switch may be adjusted to achieve consistency of the synchronous switch with the fracture structure, such as: moving the position of the simulation static contact on the shell; the crank is set to be a structure with adjustable length, and the length of the crank is adjusted; or the circumferential position of the crank on the driving rotating shaft is changed, and the like, so that the adjusting mode is very flexible.
Because the driving rotating shaft 5 drives the crank 6 and the output crank arm 3 to rotate at the same time, in order to ensure that the driving rotating shaft 5 is stressed in an axial direction in a balanced manner and is not easy to break, the crank 6 and the output crank arm 3 are respectively installed and fixed at two axial ends of the driving rotating shaft 5.
The utility model discloses a high tension switchgear is close to fracture structure one side and sets up synchronous switch on operating mechanism and fracture structure's transmission path, and the signal of synchronous switch output is comparatively accurate, and measuring error is less, adopts comparatively durable, durable bayonet mechanical switch, is difficult not hard up or damage after using many times.
By adopting the utility model, the initial technical parameter value of the high-voltage switch equipment can be recorded when leaving the factory, the original data is provided for the maintenance and overhaul of the high-voltage switch equipment in the later period, and the operation condition of the high-voltage switch equipment can be monitored on line in the subsequent investment process, so that the intelligent level of the power equipment is improved; the current technical parameters and the initial technical parameter values can be analyzed and compared, the operation stability of the high-voltage switch equipment is analyzed, the quality trend of the follow-up operation of the high-voltage switch equipment is predicted, the problem of the network operation of the high-voltage switch equipment can be found in advance, the maintenance cost is reduced, and the power grid faults caused by poor performance of the high-voltage switch equipment are reduced.
In addition, an angular displacement sensor can be arranged on the driving rotating shaft 5, so that more technical parameters such as switching-off speed, switching-on speed and the like of the high-voltage switch equipment can be obtained; the high-voltage switch device in this embodiment is a high-voltage circuit breaker, and in other embodiments, the high-voltage switch device may also be a switch device such as a disconnecting switch, a grounding switch, a gas-insulated metal-enclosed switch, an alternating-current metal-enclosed switch device, and a control device.
The utility model discloses a high tension switchgear's embodiment 2:
different from the embodiment 1, the connecting rod is hinged to the simulation moving contact, the connecting rod comprises a front connecting section, a rear connecting section and a thread adjusting section which is in threaded connection between the front connecting section and the rear connecting section, the front connecting section and the rear connecting section are respectively used for being hinged to the connecting rod and the crank, and the length adjustment of the connecting rod can be completed by screwing the thread adjusting section.
The utility model discloses a high tension switchgear's embodiment 3:
different from the embodiment 1, the simulation moving contact is of a pipe sleeve structure, the simulation static contact is of a rod type structure, and the simulation moving contact is sleeved on the outer side of the simulation static contact and matched with the simulation static contact in a sliding guide mode when the synchronous switch is switched on and switched off.
The utility model discloses a high tension switchgear's embodiment 4:
different from the embodiment 1, the simulation static contact is made of a conductive material, the simulation moving contact is provided with a conductive section and an insulating section in the length direction, and the junction of the conductive section and the insulating section is a rigid separation point and a rigid combination point of the synchronous switch.
The utility model discloses a high tension switchgear's embodiment 5:
the difference with embodiment 1 is that insulating connecting rod includes overcoat and interior pole, is equipped with the slot hole on the overcoat along length direction, and the double-screw bolt of fixing on the interior pole stretches out from the slot hole for it is fixed with interior pole to keep overcoat and nut cooperation, can follow the inside slip of overcoat with interior pole after double-screw bolt and the nut pine take off, accomplishes the length adjustment of connecting rod then.
The utility model discloses a high tension switchgear's embodiment 6:
different from the embodiment 1, the length of the connecting rod is not adjustable, the length of the crank is adjustable, the crank comprises a front connecting section, a rear connecting section and a thread adjusting section which is in threaded connection between the front connecting section and the rear connecting section, the front connecting section is used for being fixedly connected with the driving rotating shaft, the rear connecting section is used for being hinged with the connecting rod, and the length adjustment of the crank can be completed by screwing the thread adjusting section.
Or in other embodiments, the crank comprises an outer sleeve and an inner rod, a long hole is formed in the outer sleeve in the length direction, a stud fixed on the inner rod extends out of the long hole and is used for being matched with a nut to keep the outer sleeve and the inner rod fixed, and the inner rod can slide along the inner part of the outer sleeve after the stud and the nut are loosened, so that the length adjustment of the crank is completed.
The utility model discloses a high tension switchgear's embodiment 7:
different from the embodiment 1, the slider-crank structure includes a slider, a crank, and a connecting rod connected between the slider and the crank, the crank is fixedly connected with the driving rotating shaft, one end of the connecting rod is hinged to the crank, the other end of the connecting rod is in spherical hinge fit with the slider, the other end of the slider is fixedly connected with the simulated moving contact through a pull rod, a cylindrical slide rail and a simulated static contact of the pipe sleeve structure are fixed on the housing, when the synchronous switch is switched on and switched off, the slider is guided by the slide rail to move, and drives the simulated moving contact to enter and exit the simulated static contact, in this embodiment, the simulated static contact is made of a conductive material.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes equivalent to the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A high voltage switchgear comprising:
the fracture structure, the operating mechanism and the transmission structure which is transmitted between the operating mechanism and the fracture structure;
the transmission structure comprises a driving rotating shaft which is arranged on a transmission path between the operating mechanism and the fracture structure and close to the fracture structure, and the driving rotating shaft drives the insulating pull rod to move under the action of the operating mechanism so as to drive the fracture structure to be switched on and off;
it is characterized in that the utility model is characterized in that,
the high-voltage switchgear further comprises:
the synchronous switch comprises a simulated moving contact and a simulated static contact, the simulated moving contact is in transmission connection with the driving rotating shaft, so that the synchronous switch and the fracture structure can be synchronously opened and closed, and the simulated moving contact and the simulated static contact are used for being electrically connected with the mechanical characteristic analyzer.
2. The high voltage switch apparatus as claimed in claim 1, wherein the driving shaft is in transmission connection with the analog moving contact through a slider-crank transmission structure, and the analog moving contact directly reciprocates with the slider or serves as the slider of the slider-crank transmission structure and is matched with the analog static contact plug bush.
3. The high voltage switchgear as claimed in claim 2, wherein the slider-crank arrangement comprises a crank rotatable with the drive shaft and a connecting rod connecting the crank and the slider, the crank or the connecting rod being adjustable in length.
4. The high voltage switchgear of claim 3 wherein the link is adjustable in length, said link comprising front and rear attachment sections and a threaded adjustment section, the threaded adjustment section being serially connected between and threadedly connected to the front and rear attachment sections.
5. A high-voltage switch gear according to claim 3, characterized in that the connecting rod is connected to the slide in a ball joint, the length of the connecting rod being adjustable, the connecting rod comprising a front section and a rear section which are connected by a screw thread and being extended or shortened when screwing the section connected to the slide.
6. The high voltage switchgear according to any of claims 2-5, wherein the dummy static contact is a pipe sleeve structure, the dummy moving contact forms a slider of a slider-crank structure, the dummy static contact forms a guide for guiding the slider, and one of the dummy moving contact and the dummy static contact is an insulating segment and a conducting segment along its length.
7. A high-voltage switching device as claimed in any one of claims 1 to 5, characterized in that the high-voltage switching device comprises an angular displacement sensor mounted on the drive shaft.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022658036.2U CN213845089U (en) | 2020-11-17 | 2020-11-17 | High-voltage switchgear |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022658036.2U CN213845089U (en) | 2020-11-17 | 2020-11-17 | High-voltage switchgear |
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| CN213845089U true CN213845089U (en) | 2021-07-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112713060A (en) * | 2020-11-17 | 2021-04-27 | 河南省高压电器研究所有限公司 | High-voltage switch equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112713060A (en) * | 2020-11-17 | 2021-04-27 | 河南省高压电器研究所有限公司 | High-voltage switch equipment |
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