CN108807068A - A kind of solid insulation cylinder - Google Patents
A kind of solid insulation cylinder Download PDFInfo
- Publication number
- CN108807068A CN108807068A CN201710281514.2A CN201710281514A CN108807068A CN 108807068 A CN108807068 A CN 108807068A CN 201710281514 A CN201710281514 A CN 201710281514A CN 108807068 A CN108807068 A CN 108807068A
- Authority
- CN
- China
- Prior art keywords
- switch
- solid insulation
- insulation cylinder
- gauze screen
- cylinder according
- 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.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
- H01H2033/66292—Details relating to the use of multiple screens in vacuum switches
Abstract
The present invention relates to a kind of solid insulation cylinders, the solid insulation cylinder includes insulating boot and sealing in switch static contact and switch carrier in the insulating boot, wherein, the solid insulation cylinder further includes the first gauze screen being set at switch static contact and the secondary shielding net being set at switch carrier, and ground connection coating is sprayed on the outside of the solid insulation cylinder.No matter when switch is in working condition or isolation, insulating boot can ensure insulation effect, and not influenced by external condition；When insulation breakdown, between short trouble only occurs relatively, the arc energy of internal arcing is reduced, failure risk is reduced.
Description
Technical field
The present invention relates to power equipment switchgear fields, and in particular to a kind of solid insulation cylinder for ring main unit.
Background technology
Solid insulation cylinder is the core insulation assembly of solid insulation ring main unit.Currently, the big multi-surface of solid insulation cylinder does not apply
It applies or local coating shielded layer, insulation tolerance is by air and insulating materials shared, insulation performance is easy by outer
Boundary's condition influences, and solid insulation cylinder surface is untouchable.Solid insulation cylinder surface coating shielded layer can efficiently solve
Problem is stated, is increasingly favored by market.
China Patent Publication No. CN204360995U discloses a kind of solid insulation cylinder.The cylinder outer application has conduction
Layer, cylinder inside are provided with tubular gauze screen, and for disconnecting link at operating position, which plays the work of optimization electric field
With, but there is no isolation fracture.And the gauze screen of the insulating cylinder is complex-shaped, and cost is higher.
Therefore, need one kind that can make switch that can keep good insulating performance, work in working condition and isolation at present
The solid insulation cylinder of the simple surface coating shielded layer of skill.
Invention content
For the above problem existing for solid insulation cylinder in the prior art, the present invention provides a kind of solid insulation cylinder, packets
Insulating boot and sealing are included in switch static contact and switch carrier in the insulating boot, which is characterized in that the solid insulation
Cylinder further include：The first gauze screen being set at the switch static contact and the secondary shielding being set at the switch carrier
Net.
Preferably, gap is equipped between the secondary shielding net and first gauze screen.
Preferably, switch is installed, the switch includes working condition and isolation on the switch carrier.
Preferably, when the switch is in the isolation, the switch can be completely covered in the secondary shielding net.
Preferably, the switch static contact is completely covered in first gauze screen, and when the switch is in the work
When making state, the first shielding mesh portions cover the switch, and the secondary shielding mesh portions cover the switch.
Preferably, first gauze screen is U-shaped gauze screen.
Preferably, the secondary shielding net is rectangular shield net.
Preferably, the solid insulation cylinder further includes vacuum interrupter and is set to the of the movable end of vacuum arc extinguishing chamber
Three gauze screens.
Preferably, gap is equipped between the secondary shielding net and the third gauze screen.
Preferably, one end of the third gauze screen covers the ceramet interface point of the vacuum interrupter；Described
The other end of three gauze screens covers the maximum travel position of the moved end conductor adapting piece of the vacuum interrupter.
Preferably, gap is equipped between the third gauze screen and the vacuum interrupter；
Preferably, the third gauze screen is ring shielding net.
Preferably, spraying ground connection coating on the outside of the insulating boot.
Preferably, being separated into inside the insulating boot can be at least two cavity of intercommunication.
According to another aspect of the present invention, a kind of switchgear, including cabinet and above-mentioned solid insulation cylinder are provided.
Solid insulation cylinder provided by the invention, insulating boot appearance spray ground shield, can keep good in any environment
Good insulation performance, is not influenced by external condition；In insulating boot gauze screen, efficient balance are provided in movable end of vacuum arc extinguishing chamber
Electric field improves partial discharge characteristic；Switch operating position gauze screen and isolated location gauze screen are also respectively provided in insulating boot, no
By when switch is in working condition or isolation, insulating boot can ensure insulation effect, when insulation breakdown, short trouble
Between only occurring relatively, the arc energy of internal arcing is reduced, failure risk is reduced；Gauze screen uses three net separate structures, system
Make simple for process, cost is reduced while ensureing insulation effect.
Description of the drawings
Fig. 1 is the forward sight diagrammatic cross-section according to the solid insulation cylinder of present pre-ferred embodiments.
Fig. 2 is the A-A schematic cross-sectional views of solid insulation cylinder shown in FIG. 1.
Fig. 3 is that the right side of solid insulation cylinder shown in FIG. 1 regards schematic diagram.
Fig. 4 is the forward sight diagrammatic cross-section of the vacuum interrupter of solid insulation cylinder shown in FIG. 1.
Fig. 5 a, which are that the part of the first gauze screen of solid insulation cylinder shown in FIG. 1 is right, regards schematic diagram.
Fig. 5 b, which are that the part of the secondary shielding net of solid insulation cylinder shown in FIG. 1 is right, regards schematic diagram
Fig. 6 is the forward sight diagrammatic cross-section of the switch work and isolation of solid insulation cylinder shown in FIG. 1.
Reference sign：
1, branch bar；10, insulating boot；101, vacuum extinction chamber；102, switch cavity；11, gap；12, gap；13,
Gap；14, it switchs；141, switch isolation position；142, operating position is switched；15, seal groove；2, vacuum interrupter；21, it moves
End；23, ceramet interface point；3, connection row；4, switch static contact；5, third gauze screen；6, secondary shielding net；7, the first screen
Cover net；8, switch carrier；9, interior wimble interface
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, pass through below in conjunction with attached drawing specific real
Applying example, the present invention is described in more detail.
Fig. 1 is according to the forward sight diagrammatic cross-section of the solid insulation cylinder of present pre-ferred embodiments, as shown in Figure 1, solid
Insulating cylinder includes：Outside coats ground plane, and internal be divided into can be with the vacuum extinction chamber 101 and switch cavity 102 of intercommunication
Insulating boot 10；Sealing is in vacuum interrupter 2 and branch bar 1 in vacuum extinction chamber 101；It is set in switch cavity 102
The switch carrier 8 in bottom of chamber face.The switch static contact 4 being set in switch cavity 102 and coupled connection row 3, connection row 3
The other end is connect with vacuum interrupter 2.10 body bottom portion of insulating boot is equipped with interior wimble interface 9, is connected for being bored with cable.
Fig. 2 is the A-A schematic cross-sectional views of solid insulation cylinder shown in FIG. 1, as shown in Fig. 2, solid insulation cylinder is set except bottom
There are interior wimble interface 9, right side to be equipped with opening, other walls are closed.
Fig. 3 is that the right side of solid insulation cylinder shown in FIG. 1 regards schematic diagram.As shown in figure 3, on the open end of solid insulation cylinder
Equipped with seal groove 15, after sealing ring is installed, it is ensured that sealing effect when it connect with cabinet meets the requirement of IP67.
In addition, as shown in Figure 1, solid insulation cylinder further includes：The vacuum interrupter 2 being set in vacuum extinction chamber 101
The third gauze screen 5 of moved end；It is set at the switch static contact in switch cavity 102 4 the first gauze screen 7；It is set to switch cavity
The secondary shielding net 6 at switch carrier 8 in 102.Wherein, 5 expansion of the first gauze screen 7, secondary shielding net 6 and third gauze screen
Body is cast in insulating boot 10.
Fig. 4 is the forward sight diagrammatic cross-section of the vacuum interrupter of solid insulation cylinder shown in FIG. 1, as shown in Figure 1 and Figure 4,
The side of third gauze screen 5 is in electrical contact with branch bar 1, and one end is covered to ceramet interface point 23；The other end covers
Maximum travel position (is not shown) in the conductor adapting piece of moved end 21 in Fig. 4.It is set between the third gauze screen 5 and vacuum interrupter 2
There is gap 11, electric field can be improved.
Fig. 5 a, which are that the part of the first gauze screen of solid insulation cylinder shown in FIG. 1 is right, regards schematic diagram, such as Fig. 1 and Fig. 5 a institutes
Show, the end of the first gauze screen 7 is in electrical contact with the row of connection 3, and covers switch static contact 4 completely.
Fig. 5 b, which are that the part of the secondary shielding net of solid insulation cylinder shown in FIG. 1 is right, regards schematic diagram, such as Fig. 1 and Fig. 5 b institutes
Show, bottom and the switch tool bearing 8 of secondary shielding net 6 are in electrical contact, and cover switch 14 (seeing Fig. 6 in detail) completely.
Fig. 6 is the schematic diagram of the switch work and isolation of solid insulation cylinder shown in FIG. 1.As shown in fig. 6, the second screen
It covers and is equipped with gap 12 between the upper end of net 6 and third gauze screen 5；The right end of the left end of secondary shielding net 6 and the first gauze screen 7 it
Between be equipped with gap 13.
As shown in fig. 6, when switch 14 is in operating position 142,7 overlay switch 142 of the first gauze screen is quiet close to switching
A part for contact 4,6 overlay switch 142 of secondary shielding net is close to a part for switch carrier 8, third gauze screen 5, the first screen
It covers net 7 and secondary shielding net 6 is in high potential state, realize high-tension shielding of the switch 14 at operating position 142, protect
Insulation performance of the switch 14 at operating position 142 is demonstrate,proved.
On the other hand, as shown in fig. 6, when switch 14 is in isolated location 141, switch is completely covered in secondary shielding net 6
141.If switch isolation position epimere circuit is charged, third gauze screen 5 and the first gauze screen 7 are in high potential state, the second screen
It covers net 6 and is in non-charged state；If switch isolation position hypomere circuit is charged, third gauze screen 5 and the first gauze screen 7 are in not
Electriferous state, secondary shielding net 6 are in high potential state, realize high-tension shielding of the switch 14 at isolated location 141.Two kinds
In the case of ensure that insulation performance of the switch 14 at isolated location 141.
In other embodiments of the invention, the first gauze screen 7 is U-shaped gauze screen, or is two groups of symmetrical cloth of L-type gauze screen
It sets.
In other embodiments of the invention, secondary shielding net 6 is rectangular shield net, or is oval gauze screen.
In other embodiments of the invention, third gauze screen 5 is ring shielding net, or is tubular gauze screen.
In other embodiments of the invention, above-mentioned gauze screen is applicable not only to only with operating position and isolated location
Switch, such as two position switch, can equally be well applied to include operating position and isolated location multiplexing bit switch, such as have work
The three-station of position, isolated location and earthing position is particularly suitable for rotary chopper switch.
In other embodiments of the invention, the first gauze screen 7, secondary shielding net 6 and third gauze screen 5 can be used half
The processing of conductive or conductive-type material；The electrical contact of gauze screen and other inserts such as can be bolted, weld or rivet at the side
Formula is implemented.
In other embodiments of the invention, 10 outer surface spray metal of insulating boot or graphite coating so that insulation
Performance is not easy to be influenced by external condition.
Although the present invention has been described by means of preferred embodiments, the present invention is not limited to described here
Embodiment, further include made various changes and variation without departing from the present invention.
Claims (15)
1. a kind of solid insulation cylinder, including insulating boot and sealing be in switch static contact and switch carrier in the insulating boot,
It is characterized in that, the solid insulation cylinder further includes：It is set to the first gauze screen at the switch static contact and is set to institute
State the secondary shielding net at switch carrier.
2. solid insulation cylinder according to claim 1, which is characterized in that the secondary shielding net and first gauze screen
Between be equipped with gap.
3. solid insulation cylinder according to claim 2, which is characterized in that switch is installed on the switch carrier, it is described
Switch includes working condition and isolation.
4. solid insulation cylinder according to claim 3, which is characterized in that when the switch is in the isolation,
The switch can be completely covered in the secondary shielding net.
5. solid insulation cylinder according to claim 3, which is characterized in that the switch is completely covered in first gauze screen
Static contact, and when the switch is in the working condition, the first shielding mesh portions cover the switch, and described the
Two shielding mesh portions cover the switch.
6. solid insulation cylinder according to any one of claims 1 to 5, which is characterized in that first gauze screen is U-shaped screen
Cover net.
7. solid insulation cylinder according to any one of claims 1 to 6, which is characterized in that the secondary shielding net is rectangle
Gauze screen.
8. solid insulation cylinder according to any one of claims 1 to 7, which is characterized in that the solid insulation cylinder further includes
Vacuum interrupter and the third gauze screen for being set to the movable end of vacuum arc extinguishing chamber.
9. solid insulation cylinder according to claim 8, which is characterized in that the secondary shielding net and the third gauze screen
Between be equipped with gap.
10. solid insulation cylinder according to claim 9, which is characterized in that described in one end covering of the third gauze screen
The ceramet interface point of vacuum interrupter；The other end of the third gauze screen covers the moved end conductor of the vacuum interrupter
The maximum travel position of connector.
11. solid insulation cylinder according to claim 10, which is characterized in that the third gauze screen and the vacuum extinction
Gap is equipped between room.
12. solid insulation cylinder according to claim 11, which is characterized in that the third gauze screen is ring shielding net.
13. solid insulation cylinder according to any one of claim 1 to 12, which is characterized in that the outer side spray of the insulating boot
Apply ground connection coating.
14. solid insulation cylinder according to claim 13, which is characterized in that being separated into inside the insulating boot can be mutual
Two logical cavitys.
15. a kind of switchgear, which is characterized in that the solid including cabinet and according to any one of claim 1 to 14
Insulating cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710281514.2A CN108807068B (en) | 2017-04-26 | 2017-04-26 | Solid insulating cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710281514.2A CN108807068B (en) | 2017-04-26 | 2017-04-26 | Solid insulating cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108807068A true CN108807068A (en) | 2018-11-13 |
| CN108807068B CN108807068B (en) | 2022-11-04 |
Family
ID=64069216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710281514.2A Active CN108807068B (en) | 2017-04-26 | 2017-04-26 | Solid insulating cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108807068B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116313439A (en) * | 2023-05-22 | 2023-06-23 | 广州市一变电气设备有限公司 | Insulation pouring structure and pouring manufacturing method for high-voltage coil of transformer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1866441A (en) * | 2006-06-02 | 2006-11-22 | 武汉泰普变压器开关有限公司 | Off-circuit tap-changer with shielding device |
| CN102760607A (en) * | 2012-07-24 | 2012-10-31 | 上海天灵开关厂有限公司 | Pressure-operated load switch for gas-insulated ring main unit |
| CN103594950A (en) * | 2013-11-29 | 2014-02-19 | 麦克奥迪（厦门）电气股份有限公司 | Pole moving-end shielding structure of solid insulation switch |
| CN203562686U (en) * | 2013-11-29 | 2014-04-23 | 麦克奥迪（厦门）电气股份有限公司 | Post terminal moving end shielding structure of solid insulation switch |
| WO2014117392A1 (en) * | 2013-02-01 | 2014-08-07 | 厦门华电开关有限公司 | Solid insulated switchgear and gas gap insulating structure thereof |
| CN104124640A (en) * | 2014-08-08 | 2014-10-29 | 麦克奥迪（厦门）电气股份有限公司 | Solid insulation switch |
| CN204360995U (en) * | 2015-01-07 | 2015-05-27 | 浙江雷安电气有限公司 | Solid insulation cylinder |
-
2017
- 2017-04-26 CN CN201710281514.2A patent/CN108807068B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1866441A (en) * | 2006-06-02 | 2006-11-22 | 武汉泰普变压器开关有限公司 | Off-circuit tap-changer with shielding device |
| CN102760607A (en) * | 2012-07-24 | 2012-10-31 | 上海天灵开关厂有限公司 | Pressure-operated load switch for gas-insulated ring main unit |
| WO2014117392A1 (en) * | 2013-02-01 | 2014-08-07 | 厦门华电开关有限公司 | Solid insulated switchgear and gas gap insulating structure thereof |
| CN103594950A (en) * | 2013-11-29 | 2014-02-19 | 麦克奥迪（厦门）电气股份有限公司 | Pole moving-end shielding structure of solid insulation switch |
| CN203562686U (en) * | 2013-11-29 | 2014-04-23 | 麦克奥迪（厦门）电气股份有限公司 | Post terminal moving end shielding structure of solid insulation switch |
| CN104124640A (en) * | 2014-08-08 | 2014-10-29 | 麦克奥迪（厦门）电气股份有限公司 | Solid insulation switch |
| CN204360995U (en) * | 2015-01-07 | 2015-05-27 | 浙江雷安电气有限公司 | Solid insulation cylinder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116313439A (en) * | 2023-05-22 | 2023-06-23 | 广州市一变电气设备有限公司 | Insulation pouring structure and pouring manufacturing method for high-voltage coil of transformer |
| CN116313439B (en) * | 2023-05-22 | 2023-07-18 | 广州市一变电气设备有限公司 | Insulation pouring structure and pouring manufacturing method for high-voltage coil of transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108807068B (en) | 2022-11-04 |
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