CN216015105U - Novel extra-high voltage direct current isolation switch shielding device - Google Patents
Novel extra-high voltage direct current isolation switch shielding device Download PDFInfo
- Publication number
- CN216015105U CN216015105U CN202122393305.1U CN202122393305U CN216015105U CN 216015105 U CN216015105 U CN 216015105U CN 202122393305 U CN202122393305 U CN 202122393305U CN 216015105 U CN216015105 U CN 216015105U
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- China
- Prior art keywords
- high voltage
- direct current
- voltage direct
- static contact
- shielding cover
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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
- H01H1/00—Contacts
- H01H1/64—Protective enclosures, baffle plates, or screens for 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
- H01H9/02—Bases, casings, or covers
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- Switch Cases, Indication, And Locking (AREA)
Abstract
The utility model relates to a novel special high voltage direct current isolator shielding device, including being used for moving contact shield and the static contact shield that uses with the post insulator cooperation, the post insulator is equipped with two sets ofly, and every group is the three insulator that regular triangle arranged, and is two sets of be provided with main knife switch between the post insulator upper end, be provided with the elbow shield on the main knife switch, moving contact shield and static contact shield all are the apple form, moving contact shield top and static contact shield top are the bellied arc surface that makes progress. The utility model provides a this shield assembly can greatly improve extra-high voltage direct current isolator's electrode shape, effectively reduce the inhomogeneous degree of electric field, eliminate edge effect, greatly improve extra-high voltage direct current isolator's insulation level.
Description
Technical Field
The utility model relates to a shield assembly technical field, concretely relates to novel extra-high voltage direct current isolator shielding device.
Background
In China, extra-high voltage refers to the voltage level of +/-800 kilovolts or more of direct current and 1000 kilovolts or more of alternating current. The ultra-high voltage direct current transmission has the inherent characteristics of large capacity, long distance, low loss and land occupation saving, is a transmission mode which accords with the basic national conditions of China, can realize resource optimization configuration in a wider range, promotes the efficient development and utilization of energy in China, promotes the sustainable development of economy and society, greatly promotes the effective development and efficient utilization of domestic energy resources, and further improves the safe and stable operation level and the anti-accident capability of a power grid. The extra-high voltage direct current isolating switch is one of important primary equipment of extra-high voltage direct current power transmission and transformation equipment and plays an important role in a power system.
The highest voltage grade of the currently operated high-voltage direct-current isolating switch is +/-800 kV, for +/-1100 kV ultrahigh-voltage power transmission projects, in view of the importance and the site limitation of +/-1100 kV ultrahigh-voltage power transmission projects, higher performance requirements are provided for a +/-1100 kV ultrahigh-voltage direct-current isolating switch, the currently universal +/-800 kV direct-current isolating switch cannot meet the requirements, particularly, an annular voltage-sharing device cannot meet the insulation performance requirements, and an edge effect phenomenon exists.
SUMMERY OF THE UTILITY MODEL
In order to eliminate the edge effect, improve extra-high voltage direct current isolator's insulation level, the utility model provides a novel extra-high voltage direct current isolator shielding device.
The utility model provides a pair of novel extra-high voltage direct current isolator shielding device adopts following technical scheme:
the utility model provides a novel special high voltage direct current isolator shield assembly, is including being used for moving contact shield and the static contact shield that uses with the post insulator cooperation, the post insulator is equipped with two sets ofly, and is two sets of be provided with main knife switch between the post insulator upper end, be provided with the elbow shield on the main knife switch, moving contact shield and static contact shield all are the apple form, moving contact shield top and static contact shield top are the bellied arc surface that makes progress.
By adopting the technical scheme, the moving contact shielding cover, the static contact shielding cover and the elbow shielding cover are mutually matched, so that the edge effect can be eliminated, and the insulation level of the extra-high voltage direct current isolating switch can be improved. The shape of the active side and the static side of the isolating switch and the shape of the main conductive electrode are improved, and the non-uniform degree of an electric field is effectively reduced.
The utility model discloses further set up to, moving contact shield, static contact shield and elbow shield border position are the big circular arc structure of enstrophe formula.
The utility model discloses further set up to, binding post trompil, main brake sword trompil, post insulator installation trompil and ground connection brake sword static contact trompil have all been seted up on moving contact shield and the static contact shield.
By adopting the technical scheme, the outgoing line of the wiring terminal is conveniently formed by the outgoing line hole of the wiring terminal, the main switch blade is conveniently formed by the outgoing line hole of the main switch blade, the main switch blade penetrates through the outgoing line hole of the main switch blade, the supporting insulator is conveniently formed by the outgoing line hole of the supporting insulator, and the grounding switch blade is conveniently formed by the outgoing line contact hole of the grounding switch blade.
The utility model discloses further set up to, moving contact shield cover and static contact shield cover are all fixed in on the post insulator through transition mounting panel and full silk adjusting screw.
By adopting the technical scheme, the moving contact shielding cover and the static contact shielding cover are fixed on the post insulator through the transition mounting plate and the full-wire adjusting screw rod by a worker.
The utility model discloses further set up to, elbow shield cover internal fixation has interior concealed mounting panel, be provided with the installing support that is used for being connected with the main brake sword on the interior concealed mounting panel.
Through adopting above-mentioned technical scheme to the staff installs elbow shield cover on main plug-in strip.
The utility model discloses further set up to, moving contact shield cover and static contact shield cover are upper and lower split type structure, mutual lock joint between the upper and lower split type structure.
By adopting the technical scheme, the moving contact shielding cover and the static contact shielding cover can be conveniently assembled by workers.
To sum up, the utility model discloses a following at least one useful technological effect:
1. in the utility model, the moving contact shield, the static contact shield and the elbow shield are mutually matched, which is beneficial to eliminating the edge effect and improving the insulation level of the extra-high voltage direct current isolating switch;
2. the utility model discloses in, moving contact shield and static contact shield all are the apple form, are favorable to improving isolator movive and quiet side and the main electrically conductive electrode shape, effectively reduce the inhomogeneous degree of electric field.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a shield cover of a contact or a shield cover of a static contact in an embodiment of the present invention;
fig. 3 is a schematic view of a connection structure between a middle post insulator and a transition mounting plate according to the present invention;
fig. 4 is a schematic view of the connection structure between the concealed mounting plate and the elbow shield according to the present invention.
Description of reference numerals: 1. a moving contact shielding case; 2. an elbow shield; 3. a static contact shielding case; 4. a post insulator; 5. the wiring terminal is provided with a wire outlet hole; 6. opening a hole on the main knife switch; 7. mounting a hole on the post insulator; 8. opening a hole in a static contact of the grounding knife switch; 9. a transition mounting plate; 10. a full-thread adjusting screw; 11. a built-in mounting plate; 12. and (7) mounting a bracket.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 4, a novel extra-high voltage dc isolation switch shielding device comprises a moving contact shielding case 1 and a static contact shielding case 3 used in cooperation with a post insulator 4, the post insulator 4 is provided with two sets, each set is three insulators arranged in a regular triangle, a main knife switch is arranged between the upper ends of the two sets of post insulators 4, and an elbow shielding case 2 is arranged on the main knife switch.
In this embodiment, the moving contact shielding case 1 and the static contact shielding case 3 are both in an apple shape, the top of the moving contact shielding case 1 and the top of the static contact shielding case 3 are both arc surfaces protruding upwards, and the edge portions of the moving contact shielding case 1, the static contact shielding case 3 and the elbow shielding case 2 are all in an inward-turning large arc structure. Moving contact shield 1 and static contact shield 3 are upper and lower split type structure, and upper and lower lock joint between the split type structure, and moving contact shield 1 and static contact shield 3 are all fixed in on post insulator 4 through transition mounting panel 9 and full silk adjusting screw 10 to this is convenient for the staff to install moving contact shield 1 and static contact shield 3 respectively on two post insulators 4.
An inner mounting plate 11 is fixed in the elbow shielding case 2, and a mounting bracket 12 used for being connected with the main knife switch is arranged on the inner mounting plate 11, so that the elbow shielding case 2 can be conveniently mounted on the main knife switch by workers.
In this embodiment, the moving contact shielding case 1 and the static contact shielding case 3 are respectively provided with a wiring terminal outgoing line opening 5, a main blade opening 6, a post insulator 4 mounting opening, and a grounding blade static contact opening 8. The outgoing line opening 5 of the wiring terminal facilitates outgoing lines of the wiring terminal, the main knife switch opening 6 facilitates passing of the main knife switch, the pillar insulator 4 is provided with an opening for installation of the pillar insulator 4, and the grounding knife switch fixed contact opening 8 facilitates installation of the grounding knife switch fixed contact.
The use principle of the embodiment is as follows:
the moving contact shielding cover 1, the static contact shielding cover 3 and the elbow shielding cover 2 are mutually matched, so that the edge effect can be eliminated, and the insulation level of the extra-high voltage direct current isolating switch can be improved. The moving contact shielding cover 1 and the static contact shielding cover 3 are both in apple shapes, so that the moving side and main conductive electrode shapes of the isolating switch can be improved, and the non-uniform degree of an electric field can be effectively reduced.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (6)
1. The utility model provides a novel extra-high voltage direct current isolator shielding device which characterized by: the movable contact type switch comprises a movable contact shielding cover (1) and a fixed contact shielding cover (3) which are used for being matched with post insulators (4), wherein the post insulators (4) are provided with two groups, a main switch blade is arranged between the upper ends of the two groups of post insulators (4), and an elbow shielding cover (2) is arranged on the main switch blade; the moving contact shielding case (1) and the static contact shielding case (3) are both apple-shaped, and the top of the moving contact shielding case (1) and the top of the static contact shielding case (3) are both arc-shaped surfaces protruding upwards.
2. The novel extra-high voltage direct current isolation switch shielding device as claimed in claim 1, wherein: all edge parts of the moving contact shielding cover (1), the static contact shielding cover (3) and the elbow shielding cover (2) are of inward-turning large arc structures.
3. The novel extra-high voltage direct current isolation switch shielding device as claimed in claim 1, wherein: the moving contact shielding cover (1) and the static contact shielding cover (3) are respectively provided with a wiring terminal outgoing line opening (5), a main switch blade opening (6), a support insulator (4) installation opening and a grounding switch blade static contact opening (8).
4. The novel extra-high voltage direct current isolation switch shielding device as claimed in claim 3, wherein: the moving contact shielding cover (1) and the static contact shielding cover (3) are fixed on the post insulator (4) through a transition mounting plate (9) and a full-wire adjusting screw rod (10).
5. The novel extra-high voltage direct current isolation switch shielding device as claimed in claim 1, wherein: elbow shield cover (2) internal fixation has interior concealed mounting panel (11), be provided with on interior concealed mounting panel (11) and be used for the installing support (12) be connected with the main brake sword.
6. The novel extra-high voltage direct current isolation switch shielding device as claimed in claim 1, wherein: the moving contact shielding cover (1) and the static contact shielding cover (3) are of an upper split structure and a lower split structure, and the upper split structure and the lower split structure are buckled with each other.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2021219785150 | 2021-08-23 | ||
| CN202121978515 | 2021-08-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216015105U true CN216015105U (en) | 2022-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122393305.1U Active CN216015105U (en) | 2021-08-23 | 2021-09-30 | Novel extra-high voltage direct current isolation switch shielding device |
| CN202111159747.8A Pending CN113921299A (en) | 2021-08-23 | 2021-09-30 | Novel extra-high voltage direct current isolation switch shielding device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111159747.8A Pending CN113921299A (en) | 2021-08-23 | 2021-09-30 | Novel extra-high voltage direct current isolation switch shielding device |
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| CN (2) | CN216015105U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113921299A (en) * | 2021-08-23 | 2022-01-11 | 山东泰开隔离开关有限公司 | Novel extra-high voltage direct current isolation switch shielding device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219190B (en) * | 2013-04-09 | 2015-04-22 | 中国西电电气股份有限公司 | +/-1100kV high-voltage direct current disconnecting switch |
| CN106229207B (en) * | 2016-08-23 | 2019-06-07 | 国家电网公司 | Shield fitting and the disconnecting switch using the shielding fitting |
| CN106783351B (en) * | 2017-02-24 | 2019-03-05 | 国家电网公司 | A kind of single armed is folded for insertion into formula ± 1100kV extra-high voltage direct-current disconnecting switch |
| CN216015105U (en) * | 2021-08-23 | 2022-03-11 | 山东泰开隔离开关有限公司 | Novel extra-high voltage direct current isolation switch shielding device |
-
2021
- 2021-09-30 CN CN202122393305.1U patent/CN216015105U/en active Active
- 2021-09-30 CN CN202111159747.8A patent/CN113921299A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113921299A (en) * | 2021-08-23 | 2022-01-11 | 山东泰开隔离开关有限公司 | Novel extra-high voltage direct current isolation switch shielding device |
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| Publication number | Publication date |
|---|---|
| CN113921299A (en) | 2022-01-11 |
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