CN211788799U - Novel middle and low voltage secondary vacuum switch - Google Patents
Novel middle and low voltage secondary vacuum switch Download PDFInfo
- Publication number
- CN211788799U CN211788799U CN202020708762.8U CN202020708762U CN211788799U CN 211788799 U CN211788799 U CN 211788799U CN 202020708762 U CN202020708762 U CN 202020708762U CN 211788799 U CN211788799 U CN 211788799U
- Authority
- CN
- China
- Prior art keywords
- conductive column
- cylinder
- end cover
- low voltage
- secondary vacuum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model discloses a novel middle and low voltage secondary vacuum switch, which comprises a secondary vacuum arc extinguish chamber, wherein the secondary vacuum arc extinguish chamber consists of a left end cover, an insulating cylinder body, a right end cover, a fixed conductive column and a movable conductive column, and the fixed conductive column and the movable conductive column are both provided with corresponding circular contact plates; the fixed conductive column penetrates through the left end cover and extends into the insulating cylinder, the cylinder is arranged in the middle of the right end cover, the movable conductive column enters the insulating cylinder through the cylinder, the movable conductive column is provided with an insulating piston matched with the cylinder, the rear end of the cylinder is sealed in an airtight mode, a corrugated pipe sealing sleeve A is connected between the periphery of the circular contact plate of the movable conductive column and the right end cover in a sealing mode, and the tail end of the cylinder is communicated with the control air pipe. The utility model discloses a pressure differential control has saved inside complicated pull rod drive mechanism, moreover the utility model discloses what utilize is that the ordinary pressure air does not need compressed gas as the drive, increases its reliability and economic nature, has also guaranteed the security.
Description
Technical Field
The utility model relates to a power equipment technical field, in particular to novel middle and low voltage inferior vacuum switch.
Background
The circuit breaker (or switch) is the important components and parts that are arranged in transmission of electricity or distribution lines, and common circuit breaker all is that the mechanical drive pole that adopts opens a way and the process of opening a way, and the structure is more complicated, and a lot of power supplies are from hydraulic equipment moreover, and high-pressure hydraulic oil or hydraulic oil itself also cause the pollution of equipment easily, possess the potential safety hazard moreover.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a novel well low-voltage time vacuum switch, simplify its control structure, and possess the security performance.
The technical scheme of the utility model is that:
a novel medium-low voltage secondary vacuum switch comprises a secondary vacuum arc extinguish chamber, wherein the secondary vacuum arc extinguish chamber consists of a left end cover, an insulating cylinder, a right end cover, a fixed conductive column and a movable conductive column, and the fixed conductive column and the movable conductive column are both provided with corresponding circular contact plates; the fixed conductive column penetrates through the left end cover and extends into the insulating cylinder, the cylinder is arranged in the middle of the right end cover, the movable conductive column enters the insulating cylinder through the cylinder, the movable conductive column is provided with an insulating piston matched with the cylinder, the rear end of the cylinder is sealed in an airtight mode, a corrugated pipe sealing sleeve A is connected between the periphery of the circular contact plate of the movable conductive column and the right end cover in a sealing mode, and the tail end of the cylinder is communicated with the control air pipe.
Further, a sealing section is arranged between the cylinder and the conductive column for sealing, and an insulating sealing ring is arranged between the sealing sections.
Furthermore, a corrugated pipe sealing sleeve B is arranged between the outer part of the insulating cylinder body and the sealing section of the conductive column for sealing.
Further, the control air pipe is respectively connected with an air storage tank and a negative pressure air pump, and the negative pressure air pump is connected with the air storage tank; a control valve is arranged between the air storage tank and the control air pipe, a check valve A is arranged between the air storage tank and the negative pressure air pump, and a check valve B is arranged between the control air pipe and the negative pressure air pump.
Further, the control valve is an electromagnetic valve, and the control valve and the negative pressure air pump are controlled by the controller.
Further, the controller controls by automatic feedback, the feedback signal is derived from a CT (current transformer) arranged around the transmission line.
Further, the controller is controlled through manual feedback, and the feedback signal is connected from the manual control switch.
Further, the controller is provided with a control selection switch which is connected with the CT and the manual control switch and is used for selecting manual or automatic signal feedback.
The utility model discloses an useful part lies in:
the utility model discloses a pressure differential control, the main use object is well low pressure (be not more than 10KV), because well low pressure ionization ability is more weak, so inferior vacuum interrupter has adopted inferior vacuum, fills a small amount of difficult ionization gas, guarantees the operation of switch promptly, also plays the effect of arc extinguishing, has adopted gas moreover as power, has saved inside complicated pull rod drive mechanism for the main inner structure of switch is simplified, moreover the utility model discloses what utilize is that the ordinary pressure air does not need compressed gas as the drive, increases its reliability and economic nature, has also guaranteed the security.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a control schematic diagram of the present invention.
In the figure: 1-insulating cylinder body, 2-left end cover, 3-right end cover, 4-fixed conductive column, 5-movable conductive column, 6-circular touch plate, 7-corrugated pipe sealing sleeve A, 8-negative pressure air pump, 81-air storage tank, 82-check valve A, 83-control valve, 84-check valve B and 9-corrugated pipe sealing sleeve B.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1-2:
a novel middle-low voltage secondary vacuum switch comprises a secondary vacuum arc extinguish chamber, wherein the secondary vacuum arc extinguish chamber consists of a left end cover 2, an insulating cylinder 1, a right end cover 3, a fixed conductive column 4 and a movable conductive column 5, and the fixed conductive column 4 and the movable conductive column 5 are both provided with corresponding circular contact plates 6; the fixed conductive column 4 penetrates through the left end cover 2 and extends into the insulating cylinder body 1, an air cylinder is arranged in the middle of the right end cover 3, the movable conductive column 5 enters the insulating cylinder body 1 through the air cylinder, the movable conductive column 5 is provided with an insulating piston matched with the air cylinder, the rear end of the air cylinder is sealed in an airtight mode, a corrugated pipe sealing sleeve A7 is connected between the periphery of the circular contact plate 6 of the movable conductive column 5 and the right end cover 3 in a sealing mode, and the tail end of the air cylinder is communicated with the control air pipe.
Specifically, be provided with the seal section between cylinder and the leading electrical pillar and seal, be provided with insulating seal circle between the seal section, the purpose that sets up the seal section is to reduce the thickness of cylinder rear end, seals through the seal section.
Specifically, a bellows gland B9 is further arranged between the conductive column located outside the insulating cylinder 1 and the sealing section for sealing, and the bellows gland B9 mainly plays a role in safety and prevents the sealing section of the cylinder from being sealed and failing.
Specifically, the control air pipe is respectively connected with the air storage tank 81 and the negative pressure air pump 8, and the negative pressure air pump 8 is connected with the air storage tank 81; establish control valve 83 between gas holder 81 and the control trachea, establish check valve A82 between gas holder 81 and the negative pressure air pump 8, establish check valve B84 between control trachea and the negative pressure air pump 8, this is one of them gas control structure, the advantage lies in having adopted inclosed return circuit, do not adopt outside gas to flow, avoid external impurity to get into the system, this accuse gas structure theory of operation is when needs closed touch panel, open control valve 83, the ordinary pressure gas in the control valve 83 gets into the cylinder, because vacuum interrupter one side is the secondary vacuum, though possess certain atmospheric pressure (suggestion is not more than 0.3 times atmospheric pressure, fill the gas that the ionization degree of difficulty is high, for example carbon dioxide), so remove and lead closing of electrical pillar 5 and fixed conductive electrical pillar 4 along with insulating piston's removal completion, and closely the pressfitting is in the same place under atmospheric pressure. When power needs to be cut off, the negative pressure air pump 8 is started to gradually pump away the air in the cylinder until the air is vacuum, and the pressure of the secondary vacuum arc-extinguishing chamber can push the insulating piston to retreat to drive the movable conductive column 5 to be cut off.
Specifically, in order to realize automatic control, the control valve 83 is an electromagnetic valve, and the control valve 83 and the negative pressure air pump 8 are both controlled by a controller.
Specifically, the controller is controlled through automatic feedback, and the feedback signal comes from a Current Transformer (CT) arranged around the power transmission line, and the controller operates through detecting the current condition of the line, and if the current is abnormal, the controller is automatically opened, and the controller is mainly used as a protection switch.
Specifically, the controller is controlled by manual feedback, and the feedback signal is connected from a manual control switch, and can be used as a manually controlled brake.
Specifically, the controller is provided with the control selector switch, and it is connected with CT and manual control switch for select manual or automatic signal feedback, the mode of selective control makes the utility model discloses can regard as protection switch, also can regard as manual control switch to use.
The utility model discloses a pressure differential control, the main use object is well low pressure (be not more than 10KV), because well low pressure ionization ability is more weak, so inferior vacuum interrupter has adopted inferior vacuum, fills a small amount of difficult ionization gas, guarantees the operation of switch promptly, also plays the effect of arc extinguishing, has adopted gas moreover as power, has saved inside complicated pull rod drive mechanism for the main inner structure of switch is simplified, moreover the utility model discloses what utilize is that the ordinary pressure air does not need compressed gas as the drive, increases its reliability and economic nature, has also guaranteed the security.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.
Claims (8)
1. The utility model provides a novel well low-voltage time vacuum switch which characterized in that: the secondary vacuum arc extinguish chamber is composed of a left end cover, an insulating cylinder, a right end cover, a fixed conductive column and a movable conductive column, wherein the fixed conductive column and the movable conductive column are provided with corresponding circular touch panels; the fixed conductive column penetrates through the left end cover and extends into the insulating cylinder, the cylinder is arranged in the middle of the right end cover, the movable conductive column enters the insulating cylinder through the cylinder, the movable conductive column is provided with an insulating piston matched with the cylinder, the rear end of the cylinder is sealed in an airtight mode, a corrugated pipe sealing sleeve A is connected between the periphery of the circular contact plate of the movable conductive column and the right end cover in a sealing mode, and the tail end of the cylinder is communicated with the control air pipe.
2. The novel medium and low voltage vacuum switch according to claim 1, characterized in that: and a sealing section is arranged between the cylinder and the conductive column for sealing, and an insulating sealing ring is arranged between the sealing sections.
3. The novel medium and low voltage secondary vacuum switch according to claim 2, characterized in that: and a corrugated pipe sealing sleeve B is arranged between the outer part of the insulating cylinder body and the sealing section of the conductive column for sealing.
4. The novel medium and low voltage vacuum switch according to claim 1, characterized in that: the control air pipe is respectively connected with the air storage tank and the negative pressure air pump, and the negative pressure air pump is connected with the air storage tank; a control valve is arranged between the air storage tank and the control air pipe, a check valve A is arranged between the air storage tank and the negative pressure air pump, and a check valve B is arranged between the control air pipe and the negative pressure air pump.
5. The novel medium and low voltage secondary vacuum switch according to claim 4, wherein: the control valve is an electromagnetic valve, and the control valve and the negative pressure air pump are controlled by the controller.
6. The novel medium and low voltage secondary vacuum switch according to claim 5, wherein: the controller is controlled by automatic feedback, and the feedback signal comes from a CT (current transformer) arranged around the power transmission line.
7. The novel medium and low voltage secondary vacuum switch according to claim 5, wherein: the controller is controlled through manual feedback, and the feedback signal comes from the manual control switch connection.
8. The novel medium and low voltage secondary vacuum switch according to claim 5, wherein: the controller is provided with a control selection switch which is connected with the CT and a manual control switch and is used for selecting manual or automatic signal feedback.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020708762.8U CN211788799U (en) | 2020-04-30 | 2020-04-30 | Novel middle and low voltage secondary vacuum switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020708762.8U CN211788799U (en) | 2020-04-30 | 2020-04-30 | Novel middle and low voltage secondary vacuum switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211788799U true CN211788799U (en) | 2020-10-27 |
Family
ID=72958056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020708762.8U Active CN211788799U (en) | 2020-04-30 | 2020-04-30 | Novel middle and low voltage secondary vacuum switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211788799U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113380587A (en) * | 2021-06-25 | 2021-09-10 | 江西师范高等专科学校 | Intelligent switch based on Internet of things |
| CN114758921A (en) * | 2021-12-23 | 2022-07-15 | 平高集团有限公司 | Arc extinguish chamber and circuit breaker using same |
-
2020
- 2020-04-30 CN CN202020708762.8U patent/CN211788799U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113380587A (en) * | 2021-06-25 | 2021-09-10 | 江西师范高等专科学校 | Intelligent switch based on Internet of things |
| CN114758921A (en) * | 2021-12-23 | 2022-07-15 | 平高集团有限公司 | Arc extinguish chamber and circuit breaker using same |
| CN114758921B (en) * | 2021-12-23 | 2024-03-26 | 平高集团有限公司 | Explosion chamber and use circuit breaker of this explosion chamber |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211788799U (en) | Novel middle and low voltage secondary vacuum switch | |
| CN211350324U (en) | Explosion-proof pressure release system of transformer | |
| CN204375641U (en) | Vacuum interrupter | |
| CN215183822U (en) | Arc extinguishing device of circuit breaker | |
| CN201629258U (en) | Low SF6 gas pressure blocking control loop of high-voltage circuit breaker | |
| CN104112575B (en) | A kind of on-load voltage regulation capacity transfer shunting switch | |
| US11094484B2 (en) | Insulating medium for an electric energy transmission device | |
| CN101599391B (en) | Novel single-fracture single-cylinder self energy high pressure sulfur hexafluoride breaker arc extinguish chamber | |
| CN113035635B (en) | Bellows protection air chamber | |
| CN205992499U (en) | High-pressure vacuum breaker | |
| CN109411288B (en) | Auxiliary structure for improving fracture insulation performance of high-voltage circuit breaker | |
| CN207801311U (en) | A kind of pull-out type Compact gas insulation ring main unit | |
| CN114724886B (en) | Permanent magnet outdoor vacuum circuit breaker | |
| US2970198A (en) | Compressed-gas circuit interrupter | |
| CN202564156U (en) | Slow separation preventing device for hydraulic operating mechanism of high-voltage circuit breaker | |
| CN220420494U (en) | Low-temperature-resistant self-energy sulfur hexafluoride high-voltage circuit breaker | |
| CN219575495U (en) | Vacuum arc-extinguishing chamber with airtight isolation structure | |
| CN219936934U (en) | High-voltage switch complete device | |
| CN209232661U (en) | A kind of extra-high voltage vacuum interrupter | |
| CN209232657U (en) | A kind of high pressure sealing vacuum switch tube | |
| CN108417455A (en) | The potting breaker of 220kV single phase operations | |
| CN203367065U (en) | Insulating box with pressure release port | |
| CN204497148U (en) | A kind of primary cut-out | |
| CN211828615U (en) | Miniaturized vacuum arc-extinguishing chamber | |
| CN219575496U (en) | 72.5kV vacuum circuit breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |