CN111883944A - Flexible grounding device for GIL with foreign matter collection function - Google Patents
Flexible grounding device for GIL with foreign matter collection function Download PDFInfo
- Publication number
- CN111883944A CN111883944A CN202010862100.0A CN202010862100A CN111883944A CN 111883944 A CN111883944 A CN 111883944A CN 202010862100 A CN202010862100 A CN 202010862100A CN 111883944 A CN111883944 A CN 111883944A
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- China
- Prior art keywords
- grounding
- insulator
- spring
- gil
- electrode
- 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.)
- Pending
Links
- 239000012212 insulator Substances 0.000 claims abstract description 34
- 230000005611 electricity Effects 0.000 claims abstract description 5
- 239000002245 particle Substances 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009191 jumping Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
Landscapes
- Insulators (AREA)
Abstract
The invention discloses a flexible grounding device with a foreign matter collecting function for GIL (general information acquisition), which comprises a shell sleeved outside an insulator and an insulator insert embedded in the top of the insulator, wherein a grounding seat is fixedly embedded in the top of the insulator insert through a connecting piece, and a spring seat is sleeved in the middle of the grounding seat; the top of spring holder has the outer edge identical with the shell shape, and the constant head tank has been seted up to the bottom of spring holder, is provided with the spacing spring of compression between constant head tank roof and insulator inserts in the constant head tank, and the spring holder is opened downwards by the top has mated electrode slot, and the inner wall upper portion of electrode slot has the inside protruding clamping part that is used for cliping telluric electricity field, and the clamping part upside is the foreign matter collecting vat of area extension. The invention aims to provide a flexible grounding device which can ensure good grounding, can isolate foreign matters from an insulating part and avoid pollution flashover of the insulating part.
Description
Technical Field
The invention relates to the field of power transmission equipment, in particular to a flexible grounding device with a foreign matter collecting function for GIL.
Background
The GIL is mainly applied to special application scenes such as hydropower station electrical connection, extra-high voltage river-crossing power transmission and the like, replaces conventional overhead lines and high-voltage cables, and is relatively wide in application scene. With the development of the domestic GIL market, some domestic GILs are adopted in part of projects, but the effect is not ideal, and the grounding fault appears for several times, so that the loss is caused to owners, and the popularization of the domestic GILs is influenced to a certain extent. It is known that one of the important reasons is that the GIL sliding support generates metal dust during expansion and contraction, which causes ground fault or ground electrode jamming and partial discharge. Therefore, in the three-column type supporting insulator in the GIL equipment, in order to ensure that an equipotential is formed between the particle catcher and the shell and the metal inserts of the three pillars are well grounded, a grounding device is required to be applied, so that the good grounding can be ensured, the grounding electrode is ensured not to generate foreign matters in the movement process, or the generated foreign matters can be collected by the device, and the phenomenon that the insulating part is polluted and flashover is avoided.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a flexible grounding device which can ensure good grounding, reduce foreign matters generated by a grounding electrode in the movement process, isolate the foreign matters from an insulating part and avoid pollution flashover of the insulating part.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a flexible grounding device with a foreign matter collecting function for GIL comprises a shell sleeved outside an insulator and an insulator insert embedded into the top of the insulator, wherein the top of the insulator insert is fixed with a particle trap in the shell, the top of the insulator insert is fixedly embedded with a grounding seat through a connecting piece, and the middle of the grounding seat is sleeved with a spring seat; the top of the spring seat is provided with an outer edge matched with the shape of the shell, the bottom of the spring seat is provided with a positioning groove, a limiting spring compressed between the top wall of the positioning groove and the insulator insert is arranged in the positioning groove, the spring seat is downwards communicated with a pair of electrode slots from the top, the upper parts of the inner walls of the electrode slots are provided with clamping parts which are inwards protruded and used for clamping grounding electrodes, and the upper sides of the clamping parts are provided with foreign matter collecting grooves with expanded areas; the top of telluric electricity field offsets with the shell, is provided with ground connection spring between the bottom of telluric electricity field and the insulator inserts.
Furthermore, the limiting springs are at least provided with two limiting springs.
Furthermore, the bottom of the grounding electrode is provided with a flange which is pressed on the top of the grounding spring and can be clamped with the clamping part.
Further, the ground electrode is made of graphite copper.
Compared with the prior art, the invention has the following beneficial effects:
the top of the electrode slot is provided with a foreign matter collecting groove with an expanded area, so that the receiving platform is formed to surround the periphery of the grounding electrode and can be used for collecting a small amount of foreign matters generated when the grounding electrode and the shell move relatively. The pair of grounding electrodes arranged on the spring seat provides double guarantee for grounding, the safety and reliability of equipment are improved, the flange at the bottom of the grounding electrode can be clamped with the clamping part of the electrode slot, the grounding electrode is prevented from jumping out of the top of the electrode slot in the assembling process, the maximum extending amount of the grounding electrode in the electrode slot can be limited, and the grounding electrode is prevented from completely extending out of the spring seat to cause clamping stagnation of the insulator.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional side view of the structure of FIG. 1;
FIG. 3 is a schematic view of the spring seat of the present invention;
FIG. 4 is a cross-sectional view of an electrode socket according to the present invention;
fig. 5 is a schematic view of the structure of the ground electrode in the present invention.
Description of reference numerals:
1-shell, 2-insulator, 3-particle trap, 4-insulator insert, 5-grounding seat, 6-spring seat, 7-grounding electrode, 8-grounding spring, 9-limiting spring, 10-connecting piece, 61-electrode slot, 62 foreign matter collecting groove, 63 clamping part, 64 positioning groove and 71-flange.
Detailed Description
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 4, a flexible grounding device with a foreign matter collecting function for GIL comprises a housing 1 sleeved outside an insulator 2, and an insulator insert 4 embedded in the top of the insulator 2, wherein the top of the insulator insert 4 is fixed with a particle trap 3 in the housing 1, a grounding seat 5 is fixedly embedded in the top of the insulator insert 4 through a connecting piece 10, and a spring seat 6 is sleeved in the middle of the grounding seat 5; the top of the spring seat 6 is provided with an outer edge matched with the shape of the shell 1, the bottom of the spring seat 6 is provided with a positioning groove 64, a limiting spring 9 compressed between the top wall of the positioning groove 64 and the insulator insert 4 is arranged in the positioning groove 64, the spring seat 6 is downwards communicated with a pair of electrode slots 61 from the top, the upper part of the inner wall of each electrode slot 61 is provided with a clamping part 63 protruding inwards for clamping the grounding electrode 7, and the upper side of each clamping part 63 is provided with a foreign matter collecting groove 62 with an expanded area; the top of the grounding electrode 7 is abutted against the shell 1, and a grounding spring 8 is arranged between the bottom of the grounding electrode 7 and the insulator insert 4.
Wherein, the limiting springs 9 are at least provided with two, and the number of the limiting springs is two in the embodiment. Spring holder 6 can rely on spacing spring 9's elasticity, lets spring holder 6 and shell 1 closely laminate, uses two spacing springs 9 to let the even atress of spring holder 6, prevents that spring holder 6 from taking place the level and twist reverse and cause the dislocation of foreign matter collecting vat 62, makes spring holder 6 restriction in safe within range.
As shown in fig. 5, the bottom of the grounding electrode 7 is provided with a flange 71 which presses on the top of the grounding spring 8 and can be caught by the holding portion 63. The flange 71 at the bottom of the grounding electrode 7 can be clamped with the clamping part 63 of the electrode slot 61, so that the grounding electrode 7 is prevented from jumping out of the top of the electrode slot 61 in the assembling process, the assembling efficiency is improved, the maximum extending amount of the grounding electrode 7 in the electrode slot 61 can be limited, and the situation that the grounding electrode 7 is completely extended out of the spring seat 6 to cause clamping stagnation of the insulator 2 or the grounding electrode 7 and the shell 1 are abraded too much to generate foreign matters to cause electrical or mechanical faults of the insulator 2 when the gap between the spring seat 6 and the shell 1 is too large is prevented. The grounding electrode 7 is made of graphite copper, so that the grounding electrode 7 is soft and has a self-lubricating effect, and a large amount of foreign matters are not generated when the grounding electrode 7 and the shell 1 are rubbed in a relative motion.
The top of the spring seat 6 in the invention is provided with an outer edge matched with the shape of the shell 1, and the spring seat 6 with the horizontal or bent top outer edge can be processed and manufactured according to the shape of the shell 1 in the GIL equipment.
As shown in fig. 3 and 4, spring seat 6 is opened with a pair of electrode insertion grooves 61 from the top downward, the upper part of the inner wall of electrode insertion groove 61 is provided with a clamping part 63 protruding inward for clamping grounding electrode 7, and the top of electrode insertion groove 61 is provided with a foreign matter collecting groove 62 with an expanded area, so as to form a platform surrounding grounding electrode 7 and collect a small amount of foreign matter generated when grounding electrode 7 and shell 1 move relatively. Since the holding portion 63 is tightly held by the ground electrode 7, foreign matter between the ground electrode 7 and the housing 1 can be stored in the foreign matter collecting groove 62, and the foreign matter is prevented from entering the contact insulator 2 from the spring seat 6, which causes a discharge failure of the insulator 2. Each grounding electrode 7 is provided with a grounding spring 8 at the lower part thereof, so that uniform acting force is provided for the grounding electrode 7, and the grounding electrode 7 is flexibly and reliably connected with the shell 1.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (4)
1. The utility model provides a flexible earthing device for GIL takes foreign matter to collect function, is including the cover at the outside shell of insulator to and the embedding at the insulator inserts at the insulator top, the particle catcher in the top of insulator inserts and the shell is fixed mutually, its characterized in that: the top of the insulator insert is fixedly embedded with a grounding seat through a connecting piece, and a spring seat is sleeved in the middle of the grounding seat; the top of the spring seat is provided with an outer edge matched with the shape of the shell, the bottom of the spring seat is provided with a positioning groove, a limiting spring compressed between the top wall of the positioning groove and the insulator insert is arranged in the positioning groove, the spring seat is downwards communicated with a pair of electrode slots from the top, the upper parts of the inner walls of the electrode slots are provided with clamping parts which are inwards protruded and used for clamping grounding electrodes, and the upper sides of the clamping parts are provided with foreign matter collecting grooves with expanded areas; the top of telluric electricity field offsets with the shell, is provided with ground connection spring between the bottom of telluric electricity field and the insulator inserts.
2. The flexible grounding device for GIL with foreign body collection function as claimed in claim 1, wherein: the limiting springs are at least provided with two.
3. The flexible grounding device for GIL with foreign body collection function as claimed in claim 1, wherein: and the bottom of the grounding electrode is provided with a flange which is pressed on the top of the grounding spring and can be clamped with the clamping part.
4. A flexible grounding device for GIL with foreign body collection as in claim 3 wherein: the ground electrode is composed of graphite copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010862100.0A CN111883944A (en) | 2020-08-25 | 2020-08-25 | Flexible grounding device for GIL with foreign matter collection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010862100.0A CN111883944A (en) | 2020-08-25 | 2020-08-25 | Flexible grounding device for GIL with foreign matter collection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111883944A true CN111883944A (en) | 2020-11-03 |
Family
ID=73203204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010862100.0A Pending CN111883944A (en) | 2020-08-25 | 2020-08-25 | Flexible grounding device for GIL with foreign matter collection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111883944A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112928502A (en) * | 2021-02-01 | 2021-06-08 | 江苏恒高电气制造有限公司 | Grounding structure for rigid power transmission line |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130073259A (en) * | 2011-12-23 | 2013-07-03 | 엘에스전선 주식회사 | Movable insulator assembly and gas insulated transmission line having thereof |
| CN109686513A (en) * | 2018-12-27 | 2019-04-26 | 河南平高电气股份有限公司 | A kind of GIL and its post insulator sub-component |
| CN210467447U (en) * | 2019-10-10 | 2020-05-05 | 苏州永佳超硬耐磨材料有限公司 | Ceramic core rod capable of being repeatedly used |
| CN212462057U (en) * | 2020-08-25 | 2021-02-02 | 天津尚圣科技有限公司 | Flexible grounding device for GIL with foreign matter collection function |
-
2020
- 2020-08-25 CN CN202010862100.0A patent/CN111883944A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130073259A (en) * | 2011-12-23 | 2013-07-03 | 엘에스전선 주식회사 | Movable insulator assembly and gas insulated transmission line having thereof |
| CN109686513A (en) * | 2018-12-27 | 2019-04-26 | 河南平高电气股份有限公司 | A kind of GIL and its post insulator sub-component |
| CN210467447U (en) * | 2019-10-10 | 2020-05-05 | 苏州永佳超硬耐磨材料有限公司 | Ceramic core rod capable of being repeatedly used |
| CN212462057U (en) * | 2020-08-25 | 2021-02-02 | 天津尚圣科技有限公司 | Flexible grounding device for GIL with foreign matter collection function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112928502A (en) * | 2021-02-01 | 2021-06-08 | 江苏恒高电气制造有限公司 | Grounding structure for rigid power transmission line |
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