CN221079887U - Vertical cabinet dry type vacuum on-load tap-changer - Google Patents
Vertical cabinet dry type vacuum on-load tap-changer Download PDFInfo
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- CN221079887U CN221079887U CN202322508533.8U CN202322508533U CN221079887U CN 221079887 U CN221079887 U CN 221079887U CN 202322508533 U CN202322508533 U CN 202322508533U CN 221079887 U CN221079887 U CN 221079887U
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- cabinet body
- changer
- load tap
- vertical
- dry
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- 238000010079 rubber tapping Methods 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 238000009413 insulation Methods 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 238000005498 polishing Methods 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 6
- 238000003860 storage Methods 0.000 abstract description 4
- 230000009466 transformation Effects 0.000 abstract description 4
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 238000004146 energy storage Methods 0.000 description 8
- 230000007246 mechanism Effects 0.000 description 8
- 230000033001 locomotion Effects 0.000 description 7
- 238000009826 distribution Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009740 moulding (composite fabrication) Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005549 size reduction Methods 0.000 description 1
Abstract
The utility model discloses a vertical cabinet dry type vacuum on-load tap-changer, which comprises a cabinet body, wherein insulating plates are arranged on the peripheral vertical faces of the cabinet body, an A phase, a B phase and a C phase are sequentially arranged on one side face of the cabinet body from top to bottom, a fixing hole for fixing and mounting is arranged at the bottom end of the cabinet body, a hollow opening and a counter are arranged at the upper part of the front side face of the cabinet body, a driving part is fixedly arranged at the upper part of the cabinet body, a switching part is connected below the driving part in a transmission manner, and one side of the switching part is connected with a selecting part; the traditional horizontal type on-load tap-changer of the vertical cabinet body is changed into the vertical type, so that the volume of the vertical cabinet body dry-type on-load tap-changer is reduced, and the installation of a user on the vertical cabinet body dry-type on-load tap-changer is more convenient and flexible; the product volume is reduced, so that the storage and transportation cost of the tapping switch is reduced; the transformer is widely used, transformation and upgrading of the transformer are facilitated, and stability of a power system is improved.
Description
Technical Field
The utility model relates to the technical field of on-load tap-changer, in particular to a vertical cabinet dry type vacuum on-load tap-changer.
Background
The gas type vacuum on-load tap-changer is developed along with the technical development of a gas type transformer. The last 70 years of the 20 th century brings unprecedented development opportunities to the vacuum switch technology by the worldwide lifting of electric power equipment without oil surge. Vacuum on-load tapping, which is associated with gas (SF 6) insulated power transformers, is rapidly evolving in japan by virtue of its own great technical advantages. Meanwhile, china is developing with the rapid development of dry distribution transformers, and develops the vacuum on-load tap-changer with air insulation matched with the dry distribution transformers.
The gas type vacuum on-load tap-changer is an on-load tap-changer which takes gas as an insulating medium and a vacuum tube as a switching element, and the combined vacuum on-load tap-changer produced by domestic dry on-load tap-changer manufacturers has basically similar structural principles and adopts a cabinet structure. The vacuum on-load tap-changer of the cabinet body refers to a switch which is independently arranged in the ventilated cabinet body, adopts a vacuum tube as a quick switching element and adopts internal circulating air as an insulating medium and a cooling medium.
The existing on-load tap-changer of the cabinet body has the advantages that the high-voltage wiring side is an insulating plate, the other side is a metal door plate structure, and the metal door plate is connected with the metal cabinet body through a wire and grounded. Sufficient air insulation distance must be ensured between the high-voltage electrified body and the metal door plate so as to meet the requirement of the high-voltage electrified body on insulation to the ground. This makes it impossible to continue the overall size reduction of the dry on-load tap-changer.
The existing dry cabinet on-load tap-changer arranged above the transformer is inconvenient to hoist after the switch is installed. Only a dry on-load tap-changer can be installed on site, which is not beneficial to the whole transportation.
With the development of the age and the improvement of the requirements of novel equipment on the electricity quality, the users of the original dry type transformer urgently want to reform the existing transformer and install the dry type vacuum on-load tap-changer. Because the installation position of the tap switch is not reserved originally, the existing dry vacuum on-load tap switch cannot be installed under the condition of not changing the original place because the whole size is too large. There is an urgent need for miniaturized dry vacuum on-load tap changers to meet the operating requirements. In large cities with the size of gold, newly-built dry-type transformer substation projects can also use miniaturized tapping switches to reduce the occupied area of the projects and reduce the cost.
The existing on-load tap-changer of the dry-type transformer has large volume, can not effectively meet the transformation project of the transformer, and needs improvement. The conventional cabinet tapping switch is installed in such a way that the high-voltage side of the transformer is opposite to the wiring terminal of the tapping switch. The back-to-back installation is adopted. The dry on-load switch placed above the transformer may be mounted above the transformer or back-to-back.
Disclosure of utility model
The utility model aims to provide a vertical cabinet dry type vacuum on-load tap-changer, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a vertical cabinet body dry-type vacuum on-load tap changer, wherein, includes the cabinet body, the insulation board is all installed to the facade all around of the cabinet body, top-down has set gradually A looks, B looks and C looks on the cabinet body side, the bottom of the cabinet body is provided with the fixed orifices that is used for fixed mounting, the upper portion of the cabinet body leading flank is provided with open and counter, the fixed drive portion that is provided with in internal upper portion of cabinet, the below transmission of drive portion is connected with switching part, one side of switching part is connected with selecting part.
Preferably, a gear observation hole is formed in the side face of the cabinet body above the phase A.
Preferably, the cabinet body is formed by bending metal plates, welding and forming, polishing and spraying plastics.
Preferably, the power source of the driving part is a linear motor or an L-shaped motor, and an AC220V motor or an AC380V motor is adopted.
The beneficial effects are that: compared with the prior art, the utility model has the beneficial effects that: the traditional horizontal type on-load tap-changer of the vertical cabinet body is changed into the vertical type, so that the volume of the vertical cabinet body dry-type on-load tap-changer is reduced, and the installation of a user on the vertical cabinet body dry-type on-load tap-changer is more convenient and flexible; the product volume is reduced, so that the storage and transportation cost of the tapping switch is reduced; the transformer is widely used, transformation and upgrading of the transformer are facilitated, and stability of a power system is improved.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a vertical cabinet dry vacuum on-load tap-changer according to the present utility model.
Fig. 2 is a schematic diagram of the internal structure of the vertical cabinet dry vacuum on-load tap-changer.
In the accompanying drawings: 1-cabinet, 2-insulating board, 3-A phase, 4-B phase, 5-C phase, 6-fixed orifices, 7-gear observation hole, 8-open, 9-counter, 10-drive part, 11-switching part, 12-selection part.
Description of the embodiments
In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.
Examples
Referring to the drawings of the specification, in the embodiment of the utility model, a vertical cabinet dry type vacuum on-load tap changer comprises a cabinet body 1, wherein the cabinet body 1 is subjected to metal sheet metal bending, welding forming and polishing plastic spraying treatment, insulating plates 2 are arranged on the peripheral vertical faces of the cabinet body 1, an A phase 3, a B phase 4 and a C phase 5 are sequentially arranged on one side face of the cabinet body 1 from top to bottom, a gear observation hole 7 is formed in the side face of the cabinet body 1 above the A phase 3, a fixing hole 6 for fixing is formed in the bottom end of the cabinet body 1, an empty switch 8 and a counter 9 are arranged on the upper portion of the front side face of the cabinet body 1, a driving part 10 is fixedly arranged on the upper portion of the interior of the cabinet body 1, a power source of the driving part 10 is a linear motor or an L-shaped motor, an AC220V motor or an AC380V motor is adopted, a switching part 11 is connected to the lower portion of the driving part 10 in a transmission mode, and one side of the switching part 11 is connected with a selecting part 12. The driving part 10, the switching part 11 and the selecting part 12 are all of the prior art, and the present utility model changes the original arrangement.
The vertical cabinet dry type vacuum on-load tap-changer mainly comprises A, B, C three-phase selective wiring systems which are arranged up and down, and each phase of terminals are horizontally arranged.
The dry vacuum on-load tap-changer mainly comprises a motor drive, mechanical energy storage, a selection part, a switching part, a box body, a power distribution system and the like. The rotation of the driving motor drives the grooved pulley mechanism or the gear mechanism of the selection part to rotate by means of gear transmission to the mechanical energy storage spring, the driving motor converts rotary motion into linear motion by means of the chain wheel mechanism or screw transmission, when the selection mechanism selects a designated position and stores energy to a certain energy, the mechanical energy storage spring releases energy to drive the switching shaft to rapidly switch, 6 or 9 cams are fixed on the switching shaft, the cams drive the connecting rod to move up and down, and the connecting rod drives the vacuum tube to complete one-time switching, so that gear conversion of one-time load switching is completed. The switch is provided with insulating plates at the front, rear, left and right to meet the insulating requirement of the tapping switch.
The motor drive preferably employs a single phase AC220V motor, alternatively an AC380V motor. Preferably, a linear motor is used, and an L-shaped motor can also be used.
The mechanical energy storage part adopts a single-phase single-machine or three-phase motor to rotate, the rotation of the motor is converted into the swing of the rocker arm by means of a gear mechanism and a four-bar mechanism, so that the stretching energy storage of the spring is driven, when certain energy is stored, the limiter is driven by means of the limiter shifting shaft, the energy stored by the spring is quickly released to drive the balance wheel and the switching shaft to quickly rotate, and the primary switching task is completed.
The mechanical input of the selection part is driven by the circular motion of the motor through a grooved wheel (gear-gear), so that the motor rotates for half a turn or one turn, and the grooved wheel (gear-gear) mechanism completes the transmission of the set angle. The transmission of the set angle drives the selector switch to realize the left and right movement of a fixed distance through the transmission of a chain wheel and a chain (screw rod and nut), so as to achieve the purpose of tapping selection.
The switching part stores energy through the energy storage part spring, after the selection part selects in place, the energy storage spring is driven by the mechanical mechanism, the spring after energy storage is released, the energy begins to be rapidly released, and meanwhile, the switching shaft is driven to complete rapid switching. The switching shaft is provided with 6 or 9 cams, the cams convert circular motion into linear motion of the connecting rod through the connecting rod, and the linear motion of the connecting rod drives the vacuum tube to be opened or closed rapidly. Thereby completing a switching task.
The cabinet body is formed by bending metal sheet metal, welding and polishing and plastic spraying. High mechanical strength, small and attractive appearance, acid and alkali corrosion resistance and suitability for any indoor occasion.
The power distribution system adopts traditional relays, air switches and the like, and the performance is stable and reliable. The automatic and manual voltage regulation can be realized by externally connecting a controller, and the switch can be operated on site according to the lifting switch on the switch panel, so that the overhaul or maintenance is more convenient. The controller can be placed on the switch door plate to automatically or manually regulate the pressure without leading to the controller of the control room.
The on-load tapping switch of the vertical cabinet body improves a mechanical transmission mode, and optimizes and combines all functional modules again, so that the whole length of the tapping switch is greatly reduced on the premise that the original insulating property and function of the tapping switch are not changed. The installation position of the switch by a user is more flexible and convenient, and the switch can be installed on the high-voltage side or the left side and the right side of the transformer. The production cost and the transportation and storage cost are reduced, and the method is more economical and reliable. The dry-type on-load tap-changer of the vertical cabinet body can be installed back to back, can be installed on any side of a transformer, and is more flexible to install.
According to the utility model, the traditional horizontal type on-load tap-changer of the vertical cabinet body is changed into the vertical type, so that the volume of the vertical cabinet body dry-type on-load tap-changer is reduced, and the installation of a user on the vertical cabinet body dry-type on-load tap-changer is more convenient and flexible; the product volume is reduced, so that the storage and transportation cost of the tapping switch is reduced; the transformer is widely used, transformation and upgrading of the transformer are facilitated, and stability of a power system is improved.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and improvements can be made by those skilled in the art without departing from the spirit of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent.
Claims (4)
1. A vertical cabinet dry type vacuum on-load tapping switch is characterized in that: including the cabinet body (1), insulation board (2) are all installed to facade all around of the cabinet body (1), top-down has set gradually A looks (3), B looks (4) and C looks (5) on the side of the cabinet body (1), the bottom of the cabinet body (1) is provided with fixed orifices (6) that are used for fixed mounting, the upper portion of the front side of the cabinet body (1) is provided with sky-opening (8) and counter (9), the fixed drive portion (10) that is provided with in upper portion in the cabinet body (1), the below transmission of drive portion (10) is connected with switching part (11), one side of switching part (11) is connected with selecting part (12).
2. The vertical cabinet dry vacuum on-load tap-changer of claim 1, wherein: a gear observation hole (7) is formed in the side face of the cabinet body (1) above the phase A (3).
3. The vertical cabinet dry vacuum on-load tap-changer of claim 1, wherein: the cabinet body (1) is formed by bending metal sheet metal, welding and polishing and spraying plastic.
4. The vertical cabinet dry vacuum on-load tap-changer of claim 1, wherein: the power source of the driving part (10) is a linear motor or an L-shaped motor, and an AC220V motor or an AC380V motor is adopted.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221079887U true CN221079887U (en) | 2024-06-04 |
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