CN113793772B - Brake separating device of high-voltage drop switch - Google Patents
Brake separating device of high-voltage drop switch Download PDFInfo
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- CN113793772B CN113793772B CN202111145355.6A CN202111145355A CN113793772B CN 113793772 B CN113793772 B CN 113793772B CN 202111145355 A CN202111145355 A CN 202111145355A CN 113793772 B CN113793772 B CN 113793772B
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- 238000004891 communication Methods 0.000 claims abstract description 9
- 230000007613 environmental effect Effects 0.000 claims abstract description 7
- 238000012545 processing Methods 0.000 claims abstract description 5
- 230000005291 magnetic effect Effects 0.000 claims description 12
- 238000009413 insulation Methods 0.000 claims description 10
- 239000000779 smoke Substances 0.000 claims description 10
- 230000005294 ferromagnetic effect Effects 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 3
- 230000005307 ferromagnetism Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 7
- 230000002265 prevention Effects 0.000 description 5
- 238000010187 selection method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
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- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
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- 241000238631 Hexapoda Species 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/28—Power arrangements internal to the switch for operating the driving mechanism using electromagnet
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/16—Indicators for switching condition, e.g. "on" or "off"
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/16—Indicators for switching condition, e.g. "on" or "off"
- H01H9/168—Indicators for switching condition, e.g. "on" or "off" making use of an electromagnetic wave communication
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention discloses a switching-off device of a high-voltage drop switch, which comprises a switch module, an acquisition module, a CPU module and a communication module, wherein the switch module is used for controlling the circuit of the switching-off device to be cut off; the acquisition module is used for acquiring working parameters and environment parameters of the power distribution equipment; the CPU module is used for processing the data acquired by the acquisition module and controlling the switch module to work; the communication module is used for communicating with the power distribution main station; according to the invention, the working parameters and the environmental parameters of the power distribution equipment are collected through the collection module and are conveyed into the CPU module for judgment, and when the high-voltage drop switch needs to be switched off, the switching-off operation is realized through the control switch module.
Description
Technical Field
The invention relates to the technical field of power equipment, in particular to a brake separating device of a high-voltage drop switch.
Background
The transmission and distribution network in China has the characteristics of wide area distribution and large geometric dimension, and is very easy to be threatened by natural disasters such as forest and grassland fires. In recent years, with the development of electric power resources, more and more power transmission lines pass through mountain forest areas and grassland zones, and the unique topography and climate conditions of the areas are extremely easy to cause grassland mountain fires.
Forest grassland fire areas are generally easy to occur on branch lines of transmission and distribution networks, and branch line equipment is mainly a high-voltage drop switch which does not have the capabilities of remote control and automatic protection and removal of ground faults. The arc light caused by the ground fault can cause forest and grassland fires, the tower equipment is burnt out lightly, and the national huge loss is caused heavily, so that a long-time unrecoverable serious electric power accident is caused. According to incomplete statistical data, the ground connection of the power transmission and distribution line causes great threat and serious loss to China, and foreign accidents such as the occurrence of the forest and grassland fire caused by the ground connection of the line and the like happen abroad.
The existing ground fault processing method of the low-current grounding system mainly comprises a manual path pulling method, a device line selection method, a main station line selection method, a fault indicator line selection method and the like, and has the defects of long analysis and judgment time and poor accuracy in the technical level.
The current transmission and distribution network line does not have the capability of forest and grassland fire monitoring and isolation, particularly the technology of a small grounding line selection method of branch line equipment of a distribution network is still immature, the judgment is inaccurate and timely, meanwhile, the requirements on the forest fire prevention of a power grid are higher and higher, national institutes of business office in 10 months and 26 days 2020 issues national forest and grassland fire emergency plans again, the enhanced source prevention and control is provided for forest and grassland fire prevention, the forest and grassland fire risk is prevented, the forest and grassland fire is effectively and orderly treated, casualties and property loss are reduced to the greatest extent, and forest and grassland resources are protected, so that the development of the forest and grassland fire prevention function of the transmission and distribution line is urgent to be improved.
And the distribution equipment at the current stage does not have the function of remote control, even if automatic judgment is realized, if all the distribution equipment needs to be replaced, larger manpower and material resources are required to be consumed.
Disclosure of Invention
The invention aims to provide a switching-off device of a high-voltage drop switch, which solves the problem of fire processing function of a power transmission and distribution network.
The invention is realized by the following technical scheme:
A switching-off device of a high voltage drop switch, comprising:
A switch module for controlling the circuit of the opening device to be cut off;
the acquisition module is used for acquiring working parameters and environment parameters of the power distribution equipment;
the CPU module is used for processing the data acquired by the acquisition module and controlling the switch module to work;
a communication module for communicating with the power distribution master station;
the acquisition module comprises:
the current acquisition module is used for acquiring zero sequence current of the high-voltage drop switch;
the voltage acquisition module is used for acquiring the zero sequence voltage of the high-voltage drop switch;
the temperature acquisition module is used for acquiring the temperature of the power distribution equipment;
the oil level acquisition module is used for acquiring the oil level of the distribution transformer;
the gas acquisition module is used for acquiring the gas state of the distribution transformer;
The smoke sensing module is used for collecting the environmental smoke intensity of the power distribution equipment;
the flame module is used for detecting whether the distribution equipment and the environment burn;
The current acquisition module, the voltage acquisition module, the temperature acquisition module, the oil level acquisition module, the gas acquisition module, the smoke sensing module and the signal output end of the flame module are all electrically connected with the signal input end of the CPU module.
Specifically, the switch module includes:
A housing, the interior of which is provided with a storage cavity;
the first conductive connecting plate is provided with a first end and a second end, and the first end of the first conductive connecting plate is rotatably connected with the lower supporting seat of the high-voltage drop switch and is electrically connected with the high-voltage drop switch;
The first end of the second conductive connecting plate is rotatably connected with the lower supporting seat of the high-voltage drop switch and is electrically connected with the high-voltage drop switch, and the second end of the first conductive connecting plate is in contact with and is conductive with the second end of the second conductive connecting plate and is communicated with the high-voltage drop switch circuit for circulation;
The insulating ejector rod is vertically arranged in the shell and is positioned below the contact point of the first conductive connecting plate and the second conductive connecting plate;
The driving assembly is fixedly arranged in the shell, is connected with the lower end of the insulating ejector rod and drives the insulating ejector rod to move up and down;
when the insulating ejector rod moves to the uppermost part, the upper end of the insulating ejector rod is arranged between the second end of the first conductive connecting plate and the second end of the second conductive connecting plate.
Further, the switch module further includes:
The support is fixedly connected with the lower supporting seat, a vertical guide hole is formed in the support, and the insulating ejector rod is arranged in the guide hole and can slide up and down along the guide hole;
The adjusting screw is arranged below the first conductive connecting plate, the upper end of the adjusting screw is propped against the first conductive connecting plate, and the adjusting screw is in threaded connection with the bracket.
Preferably, a magnetic component is disposed between the second end of the first conductive connecting plate and the second end of the second conductive connecting plate, and the magnetic component includes:
the permanent magnet block is fixedly connected with the second end of the first conductive connecting plate/the second conductive connecting plate;
a ferromagnetic block fixedly connected to the second end of the second conductive link/the first conductive link;
Wherein the permanent magnet blocks and the ferromagnetic blocks are adsorbed by magnetic force.
Specifically, the drive assembly includes:
The insulation connecting rod is provided with a first end and a second end, and the first end of the insulation connecting rod is rotatably connected with the lower end of the insulation ejector rod;
The upper end of the tension spring is fixedly connected with the second end of the insulating connecting rod, the lower end of the tension dry spring is fixedly connected with the shell, and the tension spring applies downward acting force to the second end of the insulating connecting rod;
a latch assembly connected to the second end of the insulating link, the latch assembly exerting an upward force on the second end of the insulating link;
the support rotating shaft is fixedly connected with the shell, is arranged between the first end and the second end of the insulation connecting rod, and rotates around the support rotating shaft.
Specifically, the latch assembly includes:
An insulating lever having a first end and a second end and disposed above the insulating link;
The support point is fixedly connected with the shell, is arranged between the first end and the second end of the insulating lever, and rotates around the support point;
the first hook is fixedly connected with the second end of the insulating connecting rod;
the second hook is fixedly connected with the first end of the insulating lever, and the first hook is clamped with the second hook;
and the lifting assembly is connected with the second end of the insulating lever and controls the second end of the insulating lever to move up and down.
Preferably, the first hook is provided with a first vertical tangential plane facing the supporting rotating shaft, the second hook is provided with a second vertical tangential plane facing the supporting point, and the first vertical tangential plane is attached to the second vertical tangential plane;
Wherein the friction force between the first vertical tangential plane and the second vertical tangential plane is not less than the tension force of the tension spring;
The first vertical section is tangent to a rotation circle of the second end of the insulating connecting rod, and the second vertical section is tangent to a rotation circle of the first end of the insulating lever.
Specifically, the lifting assembly includes:
the first electromagnet is fixedly arranged below the second end of the insulating lever, and the control end of the first electromagnet is electrically connected with the CPU module;
The second end of the insulating lever is provided with a metal block adsorbed with the first electromagnetic ferromagnetism.
Further, the lifting assembly further comprises a second electromagnet which is fixedly arranged at the second end of the insulating lever and corresponds to the first electromagnet, and the control end of the second electromagnet is electrically connected with the CPU module.
Preferably, a distance between the support point and the first end of the insulating lever is greater than a distance between the support point and the second end of the insulating lever;
The first end of the insulating connecting rod is provided with a reset ring for pulling down the ejector rod.
Compared with the prior art, the invention has the following advantages and beneficial effects:
according to the invention, the working parameters and the environmental parameters of the power distribution equipment are collected through the collection module and are conveyed into the CPU module for judgment, and when the high-voltage drop switch needs to be switched off, the switching-off operation is realized through the control switch module.
The brake separating device provided by the invention can be directly installed on the existing high-voltage drop switch, so that the installation cost is reduced, the transformation cost is lower, and the implementation difficulty is low.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the principles of the invention.
Fig. 1 is a schematic structural diagram of a switching-off device of a high-voltage drop switch according to the present invention.
Reference numerals: the device comprises a first conductive connecting plate, a second conductive connecting plate, a 3-adjusting bolt, a 4-insulating ejector rod, a 5-bracket, a 6-insulating connecting rod, a 7-first hook, an 8-tension spring, a 9-second hook, a 10-first electromagnet and an 11-reset ring.
Detailed Description
The present invention will be described in further detail with reference to the drawings and embodiments, for the purpose of making the objects, technical solutions and advantages of the present invention more apparent. It is to be understood that the specific embodiments described herein are merely illustrative of the substances, and not restrictive of the invention.
It should be further noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
Embodiments of the present invention and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example 1
A brake separating device of a high-voltage drop switch comprises a switch module, an acquisition module, a CPU module and a communication module.
The switch module is used for controlling the circuit of the opening device to be cut off, is arranged in the high-voltage drop switch and controls the connectivity of the internal circuit of the high-voltage drop switch.
The acquisition module is used for acquiring working parameters and environment parameters of the power distribution equipment, and transmitting the working parameters and the working environments of the high-voltage drop switch and the power distribution equipment corresponding to the high-voltage drop switch to the CPU module.
The CPU module is used for processing the data acquired by the acquisition module and controlling the switch module to work; the CPU module receives the data sent by the acquisition module and compares the data with a setting value in the CPU module, when the acquired data exceeds the setting value, the CPU module represents that a fire disaster is likely to happen, and then the CPU module sends a control signal to the switch module to control the switch module to execute the switching-on operation, so that a circuit of the high-voltage drop switch is disconnected, and the purpose of automatically monitoring the fire disaster is achieved.
The communication module is used for communicating with the power distribution main station; the power distribution system has two functions, namely, work data and environment data of power distribution equipment are sent to the power distribution main station, each power distribution transformer is monitored through the power distribution main station, when a fire disaster occurs, fire signals are timely sent to the power distribution main station, and subsequent maintenance is conducted by workers.
And the power distribution main station can also send a remote control action signal to the CPU, and the remote control switch module can realize the switching-off of the high-voltage drop switch.
The acquisition module comprises a current acquisition module, a voltage acquisition module, a temperature acquisition module, an oil level acquisition module, a gas acquisition module, a smoke sensing module and a fire module.
The current acquisition module is used for acquiring zero sequence current of the high-voltage drop switch;
The voltage acquisition module is used for acquiring zero sequence voltage of the high-voltage drop switch;
the temperature acquisition module is used for acquiring the temperature of the power distribution equipment;
The oil level acquisition module is used for acquiring the oil level of the distribution transformer;
The gas acquisition module is used for acquiring the gas state of the distribution transformer;
the smoke sensing module is used for collecting the environmental smoke intensity of the power distribution equipment;
the flame module is used for detecting whether the distribution equipment and the environment burn;
The above modules are made to the operating parameters and environmental parameters of the power distribution equipment, and the equipment used by each module can be selected empirically by those skilled in the art, for example: the current acquisition module adopts an ammeter, the voltage acquisition module adopts a voltmeter, the temperature acquisition module adopts a temperature sensor and the like.
And, can also add other collection module according to the demand of control.
The signal output ends of the current acquisition module, the voltage acquisition module, the temperature acquisition module, the oil level acquisition module, the gas acquisition module, the smoke sensing module and the flame module are electrically connected with the signal input end of the CPU module.
Example two
When the CPU module determines that a fire disaster occurs or other faults affecting the normal operation of the network of the conveying points occur according to the acquisition module, the CPU module needs to control the switch module to operate, and this embodiment provides a switch module, which specifically includes a housing, a first conductive connecting plate 1, and a second conductive connecting plate 2.
The inside thing cavity that is provided with of casing, its main function are to protect each part of separating brake device, including but not limited to dustproof, waterproof, fire prevention, protection against insects etc. and place CPU module, communication module, switch module etc. in the casing, and collection module needs to install according to specific use position, does not necessarily all place in the casing.
The first conductive connecting plate 1 is provided with a first end and a second end, namely a straight plate structure, and the first end of the first conductive connecting plate 1 is rotatably connected with a lower supporting seat of the high-voltage drop switch and is electrically connected with the high-voltage drop switch; as shown, the first conductive link plate 1 may be rotated counterclockwise along its left end (first end).
The second conductive connecting plate 2 has a first end and a second end, that is, can be a straight plate structure, the first end of the second conductive connecting plate 2 is rotatably connected with the lower support seat of the high-voltage drop switch and electrically connected with the high-voltage drop switch, and as shown in the figure, the second conductive connecting plate 2 can rotate clockwise along the right end (first end) thereof.
The second end of the first conductive connecting plate 1 is in contact with the second end of the second conductive connecting plate 2 and is conductive, and is communicated with the high-voltage drop switch circuit to circulate, namely when the position is shown in the figure, the first conductive connecting plate 1 and the second conductive connecting plate 2 are in contact, and all have conductive wires, so that the high-voltage drop switch can be normally communicated and can normally work.
The insulating ejector rod 4 is vertically arranged in the shell and positioned below the contact point of the first conductive connecting plate 1 and the second conductive connecting plate 2, and when the high-voltage drop switch is required to work normally, the insulating ejector rod 4 is positioned below, and the contact between the first conductive connecting plate 1 and the second conductive connecting plate 2 is not affected at the moment.
When the high-voltage drop switch is required to stop working, the insulating ejector rod 4 is controlled to move to the uppermost side, the first conductive connecting plate 1 rotates anticlockwise in the moving process, the second conductive connecting plate 2 rotates clockwise, and finally the upper end of the insulating ejector rod 4 is arranged between the second end of the first conductive connecting plate 1 and the second end of the second conductive connecting plate 2, so that the first conductive connecting plate 1 and the second conductive connecting plate 2 are not connected any more, and the high-voltage drop switch is disconnected.
The driving component is fixedly arranged in the shell, is connected with the lower end of the insulating ejector rod 4 and drives the insulating ejector rod 4 to move up and down; the driving component is used for controlling the insulating ejector rod 4 to move upwards or downwards, and can be an electric telescopic rod, a pneumatic rod, an electric threaded screw rod component and the like.
Example III
The switch module in this embodiment also comprises a bracket 5 and an adjusting screw 3.
The bracket 5 is fixedly connected with the lower supporting seat, a vertical guide hole is formed in the bracket, and the insulating ejector rod 4 is arranged in the guide hole and can slide up and down along the guide hole; the moving direction of the insulating ejector rod 4 can be limited by arranging the support 5, so that the condition that the insulating ejector rod shakes left and right is avoided.
The adjusting screw 3 is arranged below the first conductive connecting plate 1, the upper end of the adjusting screw 3 is propped against the first conductive connecting plate 1, the adjusting screw 3 is in threaded connection with the bracket 5, the angle of the first conductive connecting plate 1 can be controlled by arranging the height of the adjusting screw 3, and therefore fine adjustment of the positions of contact points (dead points) of the first conductive connecting plate 1 and the second conductive connecting plate 2 can be achieved, and the device is more suitable for various different installation environments.
Example IV
The first conductive connecting plate 1 and the second conductive connecting plate 2 may have an untight contact, and thus may have a bad contact, so a magnetic attraction component is disposed between the second end of the first conductive connecting plate 1 and the second end of the second conductive connecting plate 2 in this embodiment, and the magnetic attraction component includes: permanent magnet blocks and magnet blocks.
The permanent magnet block is fixedly connected with the second end of the first conductive connecting plate 1/the second conductive connecting plate 2; the ferromagnetic block is fixedly connected with the second end of the second conductive connecting plate 2/the second conductive connecting plate 1;
the permanent magnet blocks and the ferromagnetic blocks are adsorbed by magnetic force, so that the first conductive connecting plate 1 and the second conductive connecting plate 2 can be stably adsorbed when the positions are shown in the figure, and the situation of poor contact is avoided.
Example five
The embodiment provides a specific structure of the driving assembly, which comprises an insulating connecting rod 6, a tension spring 8, a locking assembly and a supporting rotating shaft.
The insulating connecting rod 6 is provided with a first end and a second end, and the first end of the insulating connecting rod 6 is rotatably connected with the lower end of the insulating ejector rod 4;
the support rotating shaft is fixedly connected with the shell, and is arranged between the first end and the second end of the insulation connecting rod 6, and the insulation connecting rod 6 rotates around the support rotating shaft;
The insulating connecting rod 6 is rotatable by means of a supporting shaft, so that when the first end of the insulating connecting rod 6 moves upwards, the second end of the insulating connecting rod 6 moves downwards, and in this embodiment a tension spring 8 is arranged at the second end of the insulating connecting rod 6.
The upper end of the tension spring 8 is fixedly connected with the second end of the insulating connecting rod 6, the lower end of the tension dry spring is fixedly connected with the shell, and the tension spring 8 applies downward acting force to the second end of the insulating connecting rod 6; the second end of the insulating connecting rod 6 is applied with a downward acting force through the tension spring 8, and when the insulating ejector rod 4 needs to be controlled to move upwards, the second end of the insulating connecting rod 6 is pulled to move downwards through the tension spring 8, so that the function of moving upwards the insulating ejector rod 4 can be realized.
The locking component is connected with the second end of the insulating connecting rod 6, and exerts upward acting force on the second end of the insulating connecting rod 6; however, when the insulating jack 4 is not required to move up, the second end of the insulating connecting rod 6 needs to be prevented from moving down, so that an upward acting force is applied to the insulating connecting rod 6 by arranging a locking component, so that the elastic force of the tensile spring 8 is counteracted, and the purpose of stability can be achieved.
Thus, the latch assembly of the present embodiment includes an insulating lever, a support point, a first hook 7, a second hook 9, and a lifting assembly.
The insulating lever has a first end and a second end and is arranged above the insulating connecting rod 6;
the supporting point is fixedly connected with the shell, and is arranged between the first end and the second end of the insulating lever, and the insulating lever rotates around the supporting point;
the supporting point is fixedly connected with the shell, and is arranged between the first end and the second end of the insulating lever, and the insulating lever rotates around the supporting point;
The insulating lever is rotatable via the support point, so that the second end of the insulating link 6 moves down when the first end of the insulating lever moves up, and in this embodiment a lifting assembly is provided at the second end of the insulating link 6.
The first hook 7 is fixedly connected with the second end of the insulating connecting rod 6;
the second hook 9 is fixedly connected with the first end of the insulating lever, and the first hook 7 is clamped with the second hook 9;
The first hook 7 is provided with a first vertical tangential plane facing the supporting rotating shaft, the second hook 9 is provided with a second vertical tangential plane facing the supporting point, and the first vertical tangential plane is attached to the second vertical tangential plane; the friction force between the first vertical tangential plane and the second vertical tangential plane is not less than the tension force of the tension spring 8;
The position fixing of the insulating connecting rod 6 and the insulating lever is realized by the friction force between the first hook 7 and the second hook 9.
In order to separate the first hook 7 from the second hook 9, the first vertical section needs to be set to be tangent to the rotation circle of the second end of the insulating connecting rod 6, and the second vertical section is set to be tangent to the rotation circle of the first end of the insulating lever, so that when the insulating connecting rod 6 and the insulating lever rotate around the supporting rotating shaft and the supporting point, normal separation can be achieved.
Because the first hook 7 and the second hook 9 have friction force, and the friction force counteracts the elasticity of the tension spring 8, in order to provide a force to make the sum of the tension spring 8 and the friction force greater than the friction force when the high-voltage drop switch is required to be opened, the embodiment is realized through the lifting assembly.
The lifting assembly is connected with the second end of the insulating lever and controls the second end of the insulating lever to move up and down.
Example six
The embodiment provides a lifting assembly, which comprises a first electromagnet 10, wherein the first electromagnet 10 is fixedly arranged below a second end of an insulating lever, and a control end of the first electromagnet 10 is electrically connected with a CPU module;
the second end of the insulating lever is provided with a metal block magnetically attracted to the first electromagnet 10.
When the second end of the insulating lever needs to be controlled to move downwards, the CPU module controls the first electromagnet 10 to supply power, so that the first electromagnet 10 is provided with magnetic force, the second end of the insulating lever is adsorbed through the magnetic force, the first end of the insulating lever moves upwards, the first hook 7 is separated from the second hook 9, the tension spring 8 is shortened, the tension spring 8 pulls the second end of the insulating connecting rod 6 to move downwards, the first end of the insulating connecting rod 6 moves upwards finally, the insulating ejector rod 4 is ejected out, and the first conductive connecting plate 1 and the second conductive connecting plate 2 are controlled to be separated.
Further, in order to further increase the adsorption performance, the lifting assembly further comprises a second electromagnet fixedly arranged at the second end of the insulating lever and corresponding to the first electromagnet 10, and the control end of the second electromagnet is electrically connected with the CPU module.
Through the combination of the first electromagnet 10 and the second electromagnet, when the adsorption is needed, the magnetic poles of the control contact surface are opposite, and the adsorption performance on the insulating lever is improved.
Example seven
After the opening operation is performed once, the resetting is required, so in this embodiment, the distance between the supporting point and the first end of the insulating lever is greater than the distance between the supporting point and the second end of the insulating lever;
the gravity of the first end of the insulating lever is larger than that of the second end of the insulating lever, the resetting of the insulating lever can be realized under the action of gravity, and the polarities of the first electromagnet 10 and the second electromagnet can be controlled to be the same, so that the insulating lever can be further reset rapidly.
The first end of insulating connecting rod 6 is provided with the reset ring 11 that is used for the drop-down ejector pin, through setting up reset ring 11, realizes drop-down insulating connecting rod 6, elongates tension spring 8 to first couple 7 and second couple 9 block have realized the operation that resets.
In the description of the present specification, reference to the terms "one embodiment/manner," "some embodiments/manner," "example," "a particular example," "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/manner or example is included in at least one embodiment/manner or example of the application. In this specification, the schematic representations of the above terms are not necessarily for the same embodiment/manner or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/modes or examples described in this specification and the features of the various embodiments/modes or examples can be combined and combined by persons skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
It will be appreciated by persons skilled in the art that the above embodiments are provided for clarity of illustration only and are not intended to limit the scope of the invention. Other variations or modifications of the above-described invention will be apparent to those of skill in the art, and are still within the scope of the invention.
Claims (9)
1. The utility model provides a high voltage drop switch's separating brake device which characterized in that includes:
A switch module for controlling the circuit of the opening device to be cut off;
The acquisition module is used for acquiring working parameters and environmental parameters of the power distribution equipment;
the CPU module is used for processing the data acquired by the acquisition module and controlling the switch module to work;
a communication module for communicating with the power distribution master station;
The signal output end of the acquisition module is electrically connected with the signal input end of the CPU module, the communication end of the CPU module is electrically connected with the signal end of the communication module, and the control end of the CPU module is electrically connected with the signal end of the CPU module;
the acquisition module comprises:
the current acquisition module is used for acquiring zero sequence current of the high-voltage drop switch;
the voltage acquisition module is used for acquiring the zero sequence voltage of the high-voltage drop switch;
the temperature acquisition module is used for acquiring the temperature of the power distribution equipment;
the oil level acquisition module is used for acquiring the oil level of the distribution transformer;
the gas acquisition module is used for acquiring the gas state of the distribution transformer;
The smoke sensing module is used for collecting the environmental smoke intensity of the power distribution equipment;
the flame module is used for detecting whether the distribution equipment and the environment burn;
The signal output ends of the current acquisition module, the voltage acquisition module, the temperature acquisition module, the oil level acquisition module, the gas acquisition module, the smoke sensing module and the flame module are electrically connected with the signal input end of the CPU module;
The switch module includes:
A housing, the interior of which is provided with a storage cavity;
the first conductive connecting plate is provided with a first end and a second end, and the first end of the first conductive connecting plate is rotatably connected with the lower supporting seat of the high-voltage drop switch and is electrically connected with the high-voltage drop switch;
The first end of the second conductive connecting plate is rotatably connected with the lower supporting seat of the high-voltage drop switch and is electrically connected with the high-voltage drop switch, and the second end of the first conductive connecting plate is in contact with and is conductive with the second end of the second conductive connecting plate and is communicated with the high-voltage drop switch circuit for circulation;
The insulating ejector rod is vertically arranged in the shell and is positioned below the contact point of the first conductive connecting plate and the second conductive connecting plate;
The driving assembly is fixedly arranged in the shell, is connected with the lower end of the insulating ejector rod and drives the insulating ejector rod to move up and down;
when the insulating ejector rod moves to the uppermost part, the upper end of the insulating ejector rod is arranged between the second end of the first conductive connecting plate and the second end of the second conductive connecting plate.
2. The switching-off device of a high voltage drop switch according to claim 1, further comprising:
The support is fixedly connected with the lower supporting seat, a vertical guide hole is formed in the support, and the insulating ejector rod is arranged in the guide hole and can slide up and down along the guide hole;
The adjusting screw is arranged below the first conductive connecting plate, the upper end of the adjusting screw is propped against the first conductive connecting plate, and the adjusting screw is in threaded connection with the bracket.
3. The breaking device of the high-voltage drop switch according to claim 1, wherein a magnetic attraction assembly is disposed between the second end of the first conductive connecting plate and the second end of the second conductive connecting plate, and the magnetic attraction assembly comprises:
the permanent magnet block is fixedly connected with the second end of the first conductive connecting plate/the second conductive connecting plate;
a ferromagnetic block fixedly connected to the second end of the second conductive link/the first conductive link;
Wherein the permanent magnet blocks and the ferromagnetic blocks are adsorbed by magnetic force.
4. The brake release device of a high voltage drop switch of claim 1, wherein the drive assembly comprises:
The insulation connecting rod is provided with a first end and a second end, and the first end of the insulation connecting rod is rotatably connected with the lower end of the insulation ejector rod;
the upper end of the tension spring is fixedly connected with the second end of the insulating connecting rod, the lower end of the tension spring is fixedly connected with the shell, and the tension spring applies downward acting force to the second end of the insulating connecting rod;
a latch assembly connected to the second end of the insulating link, the latch assembly exerting an upward force on the second end of the insulating link;
the support rotating shaft is fixedly connected with the shell, is arranged between the first end and the second end of the insulation connecting rod, and rotates around the support rotating shaft.
5. The brake release mechanism of a high voltage drop switch of claim 4, wherein the latch assembly comprises:
An insulating lever having a first end and a second end and disposed above the insulating link;
The support point is fixedly connected with the shell, is arranged between the first end and the second end of the insulating lever, and rotates around the support point;
the first hook is fixedly connected with the second end of the insulating connecting rod;
the second hook is fixedly connected with the first end of the insulating lever, and the first hook is clamped with the second hook;
and the lifting assembly is connected with the second end of the insulating lever and controls the second end of the insulating lever to move up and down.
6. The brake release device of the high-voltage drop switch according to claim 5, wherein the first hook is provided with a first vertical tangential plane facing the supporting rotating shaft, the second hook is provided with a second vertical tangential plane facing the supporting point, and the first vertical tangential plane is attached to the second vertical tangential plane;
Wherein the friction force between the first vertical tangential plane and the second vertical tangential plane is not less than the tension force of the tension spring;
The first vertical section is tangent to a rotation circle of the second end of the insulating connecting rod, and the second vertical section is tangent to a rotation circle of the first end of the insulating lever.
7. The brake release device of a high voltage drop switch of claim 5, wherein the lifting assembly comprises:
the first electromagnet is fixedly arranged below the second end of the insulating lever, and the control end of the first electromagnet is electrically connected with the CPU module;
The second end of the insulating lever is provided with a metal block adsorbed with the first electromagnetic ferromagnetism.
8. The opening device of the high-voltage drop switch according to claim 7, wherein the lifting assembly further comprises a second electromagnet fixedly arranged at the second end of the insulating lever and corresponding to the first electromagnet, and a control end of the second electromagnet is electrically connected with the CPU module.
9. The opening device of a high voltage drop switch of claim 5, wherein a distance between the support point and the first end of the insulating lever is greater than a distance between the support point and the second end of the insulating lever;
The first end of the insulating connecting rod is provided with a reset ring for pulling down the ejector rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111145355.6A CN113793772B (en) | 2021-09-28 | 2021-09-28 | Brake separating device of high-voltage drop switch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111145355.6A CN113793772B (en) | 2021-09-28 | 2021-09-28 | Brake separating device of high-voltage drop switch |
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| CN113793772A CN113793772A (en) | 2021-12-14 |
| CN113793772B true CN113793772B (en) | 2024-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111145355.6A Active CN113793772B (en) | 2021-09-28 | 2021-09-28 | Brake separating device of high-voltage drop switch |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102646559A (en) * | 2012-04-11 | 2012-08-22 | 福建省连城县供电有限公司 | Automatic disconnecting device of high-voltage falling type switch |
| CN110571916A (en) * | 2019-09-29 | 2019-12-13 | 北京潞电电气设备有限公司 | 0.4kV double-power switching device and switch |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2488213Y (en) * | 2001-06-13 | 2002-04-24 | 董安平 | Substraction phase running protector for main transformer of power substation |
| CN104701111B (en) * | 2015-03-19 | 2017-03-22 | 河北宝凯电气股份有限公司 | Miniature circuit breaker capable of quickly breaking |
| CN206313534U (en) * | 2016-11-29 | 2017-07-07 | 山东和远智能科技股份有限公司 | Bar rack type becomes radio station monitoring device |
| CN111524760A (en) * | 2020-06-10 | 2020-08-11 | 北京中电安智科技有限公司 | Quick circuit breaker and novel drop-out quick breaker |
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2021
- 2021-09-28 CN CN202111145355.6A patent/CN113793772B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102646559A (en) * | 2012-04-11 | 2012-08-22 | 福建省连城县供电有限公司 | Automatic disconnecting device of high-voltage falling type switch |
| CN110571916A (en) * | 2019-09-29 | 2019-12-13 | 北京潞电电气设备有限公司 | 0.4kV double-power switching device and switch |
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| CN113793772A (en) | 2021-12-14 |
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