CN104269768A - Shielding cover, embedded pole with shielding cover and solid insulation ring main unit with shielding cover - Google Patents
Shielding cover, embedded pole with shielding cover and solid insulation ring main unit with shielding cover Download PDFInfo
- Publication number
- CN104269768A CN104269768A CN201410457309.3A CN201410457309A CN104269768A CN 104269768 A CN104269768 A CN 104269768A CN 201410457309 A CN201410457309 A CN 201410457309A CN 104269768 A CN104269768 A CN 104269768A
- Authority
- CN
- China
- Prior art keywords
- insulator
- plastic body
- radome
- shielding cover
- switch
- 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
Links
- 239000007787 solid Substances 0.000 title claims abstract description 22
- 238000009413 insulation Methods 0.000 title claims description 28
- 239000012212 insulator Substances 0.000 claims abstract description 43
- 239000004033 plastic Substances 0.000 claims abstract description 42
- 229920003023 plastic Polymers 0.000 claims abstract description 42
- 229910052751 metal Inorganic materials 0.000 claims abstract description 34
- 239000002184 metal Substances 0.000 claims abstract description 34
- 239000000428 dust Substances 0.000 claims description 21
- 230000005611 electricity Effects 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 238000005266 casting Methods 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 9
- 239000002360 explosive Substances 0.000 claims description 8
- 239000000843 powder Substances 0.000 abstract description 5
- 238000007599 discharging Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000003822 epoxy resin Substances 0.000 description 8
- 229920000647 polyepoxide Polymers 0.000 description 8
- 239000000463 material Substances 0.000 description 5
- 230000004308 accommodation Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
Abstract
The invention relates to a shielding cover, an embedded pole with the shielding cover and a solid insulating ring main unit with the shielding cover. The embedded pole comprises an insulator, a switch arc extinguish chamber and a breaker arc extinguish chamber are arranged inside the insulator and connected through a soft connecting part, and the periphery of the part, on the insulator, of the soft connecting part is covered with the shielding cover. The shielding cover comprises an annular plastic body, and metal powder is poured and solidified inside the plastic body, wherein the metal powder and the plastic body are of an integrated structure, and the metal powder is connected with the soft connecting part in an electric conduction mode. In the pouring forming process, the metal powder is good in mobility under driving of plastics, so that the shielding cover is easy to form in a needed shape; in this way, the shielding cover can be used for the embedded pole to shield the soft connecting part and prevent the pointed end of the soft connecting part from discharging.
Description
Technical field
The present invention relates to radome and use pole and the solid insulation ring main unit of this radome.
Background technology
At high voltage switchgear such as in ring main unit, if arc control device and isolating switch are exposed in atmosphere, easy existence is by the problem of the dust in the external world, moisture contamination, in order to avoid the impact of external environment condition, improve the insulation property of corresponding component simultaneously, arc control device, conductive pieces sealing that isolating switch is relevant with circuit breaker is needed to form pole in the solid insulating material of this kind of easy solidification of epoxy resin, make it into as a whole parts, be called pole, use the ring main unit of this pole to be called solid insulation ring main unit.
Existing solid insulation ring main unit is " a kind of solid insulation ring main unit " disclosed in Chinese patent CN103166143A, this solid insulation ring main unit comprises cabinet and is arranged at the pole on cabinet, pole comprises insulator, the first cavity and the second cavity that are arranged side by side is provided with in insulator, first cavity, the axial side of the second cavity is provided with the 3rd cavity, the arc-extinguishing chamber of circuit breaker of circuit breaker is placed in the first cavity, the switch arc control device of isolating switch are placed in the second cavity, the insulating pull rod for breaker of circuit breaker and the switch insulation pull bar of isolating switch are placed in the 3rd cavity, arc-extinguishing chamber of circuit breaker, one end that switch arc control device close on the 3rd cavity is connected by flexible link conduction, arc-extinguishing chamber of circuit breaker, the other end of switch arc control device is respectively arranged with the orthogonal breaker connection seat of bearing of trend and arc control device junction block.Existing this pole Problems existing is: 1, metallic shield is inherently not easily processed, and the erose radome processing of non-revolved body is got up just more difficult, in pole, in order to reduce the use amount of mould material, the cross sectional shape of the 3rd vestibule is rectangle, the more difficult processing of rectangular radome, this just causes to arrange metallic shield in the flexible link periphery of easy point discharge, make product not adopt shield technology, point discharge problem cannot be avoided, 2, breaker connection seat and arc control device junction block take orthogonal unsymmetric structure, circuit breaker and the isolating switch installation site in ring main unit is caused to be fixing, such as in some specific ring main units, circuit breaker and isolating switch setting up and down, the mould making the insulator of this pole can use, when in another kind of ring main unit, when needing circuit breaker to be arranged at below isolating switch, due to the asymmetric setting of breaker connection seat and arc control device junction block, cause the versatility of insulator not strong, namely other insulator must be used to make mould just passable, this can increase the cost of manufacture of product, 3, Bi Weizhi chamber, the chamber wall of the 3rd cavity causes the creepage distance of product limited, and the length of increase the 3rd cavity can only be relied on to increase the creepage distance of product, and this can cause the physical dimension of product comparatively large, is unfavorable for that the miniaturization of pole and ring main unit makes, 4, the insulator of solid construction also can waste a large amount of mould materials, increases the cost of product.
Summary of the invention
The object of the present invention is to provide and be a kind ofly easy to shaping radome; The present invention also aims to provide a kind of pole and the solid insulation ring main unit that use this radome.
In order to solve the problem, in the present invention, the technical scheme of solid insulation ring main unit is:
Solid insulation ring main unit, comprise the pole of cabinet and upper setting thereof, pole comprises insulator, switch arc control device and the arc-extinguishing chamber of circuit breaker of flexible link connection is provided with in insulator, insulator is covered with radome in the periphery of described flexible link, radome comprises the plastic body of annular, and in plastic body, cast cured explosive has into a single integrated structure with plastic body and conducts electricity with described flexible link the metal dust be connected.
The body wall of plastic body offers the fabrication hole for flowing through during described insulator moulding by casting.
Described plastic body is installed with and realizes metal dust and described flexible link and conduct electricity the metal insert be connected.
Switch arc control device, arc-extinguishing chamber of circuit breaker are arranged up and down, the switch wire connection seat be connected with the quiet end of switch arc control device is provided with in insulator, be provided with the breaker connection seat be connected with the quiet end of arc-extinguishing chamber of circuit breaker in insulator, switch wire connection seat and breaker connection seat are symmetrical arranged up and down.
In the present invention, the technical scheme of pole is:
Pole, comprise insulator, switch arc control device and the arc-extinguishing chamber of circuit breaker of flexible link connection is provided with in insulator, insulator is covered with radome in the periphery of described flexible link, radome comprises the plastic body of annular, and in plastic body, cast cured explosive has into a single integrated structure with plastic body and conducts electricity with described flexible link the metal dust be connected.
The body wall of plastic body offers the fabrication hole for flowing through during described insulator moulding by casting.
Switch arc control device, arc-extinguishing chamber of circuit breaker are arranged up and down, the switch wire connection seat be connected with the quiet end of switch arc control device is provided with in insulator, be provided with the breaker connection seat be connected with the quiet end of arc-extinguishing chamber of circuit breaker in insulator, switch wire connection seat and breaker connection seat are symmetrical arranged up and down.
In the present invention, the technical scheme of radome is:
Radome, comprises the plastic body of annular, and in plastic body, cast cured explosive has into a single integrated structure to plastic body and for conducting electricity with corresponding conductively-closed part the metal dust be connected.
The body wall of plastic body offers the fabrication hole for flowing through during described insulator moulding by casting.
Plastic body is installed with and realizes metal dust and described conductively-closed part and conduct electricity the metal insert be connected.
Beneficial effect of the present invention is: in moulding by casting process, metal dust has good mobility under the drive of plastics, so radome can be easy to be shaped to required various shapes, such radome just can use in pole, to shield flexible link, prevent flexible link point discharge.
Accompanying drawing explanation
Fig. 1 is the using state figure of pole in an embodiment of solid insulation ring main unit in the present invention;
Fig. 2 is the structural representation of pole in Fig. 1;
Fig. 3 is the structural representation of the embodiment 1 of radome in the present invention, is also the structural representation of radome in Fig. 1 simultaneously;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is that the C-C of Fig. 3 is to cutaway view;
Fig. 6 is the structural representation of the embodiment 2 of radome in the present invention;
Fig. 7 is that the A-A of Fig. 6 is to cutaway view;
Fig. 8 is that the B-B of Fig. 6 is to cutaway view.
Embodiment
The embodiment of solid insulation ring main unit is as shown in Fig. 1 ~ 5: the pole comprising cabinet (not shown) and upper setting thereof, pole comprises the insulator 1 be made up of epoxy resin, the first cavity and the second cavity arranged up and down is provided with in insulator, switch arc control device 8 are provided with in first cavity, arc-extinguishing chamber of circuit breaker 6 is provided with in second cavity, in insulator, the left side of the first cavity is provided with the switch wire connection seat accommodation hole extended along the vertical direction with the first cavity connects, switch wire connection seat 9 is provided with in switch wire connection seat accommodation hole, switch wire connection seat 9 is connected with the quiet end of switch arc control device 8, in insulator, the left side of the second cavity is provided with the breaker connection seat accommodation hole extended along the vertical direction with the second cavity connects, breaker connection seat 10 is provided with in breaker connection seat accommodation hole, breaker connection seat 10 is connected with the quiet end of arc-extinguishing chamber of circuit breaker 6, switch wire connection seat and breaker connection seat are symmetrical arranged up and down, and switch wire connection seat and breaker connection seat are coaxially set.Between the first cavity and the second cavity, material reducing hole 12 is provided with in insulator.In the first cavity in insulator, the right side of the second cavity is provided with the 3rd cavity 14, the chamber wall of the 3rd cavity is arranged at intervals with in left-right direction multi-turn and the integrated insulation convex edge 13 of insulator, insulation convex edge can increase the creepage distance of product, thus the length of the 3rd cavity can be reduced, to reduce the overall dimensions of product, the switch insulation pull bar 5 of isolating switch and the insulating pull rod for breaker 4 of circuit breaker are arranged in the 3rd cavity 14, switch insulation pull bar 5 and insulating pull rod for breaker 4 are connected with the moved end of switch arc control device 8 and arc-extinguishing chamber of circuit breaker 6 respectively, switch arc control device, conducted electricity by flexible link 2 between the right-hand member of arc-extinguishing chamber of circuit breaker and connect, insulator is covered with radome 15 in the periphery of flexible link, radome comprises plastic body, in plastic body, cast cured explosive has the metal dust into a single integrated structure with plastic body, metal dust is aluminium powder (iron powder or other metal dust), though the radome solidified by metal dust and plastic pouring has larger resistance, but conducting screen shield effectiveness can be realized, the end 17 of radome adopts round and smooth spherical structure, prevent point discharge, pole also comprises the metal insert 18 being solidified into integrative-structure with plastic body upper, metal insert is used for reliably being connected with conductively-closed part and flexible link 2, metal dust in plastic body is conducted electricity with flexible link by metal insert 18 and is connected, the cover body wall of radome offers fabrication hole 16, fabrication hole can flow through to make radome and epoxy resin reliable connection when ensureing epoxy resin and radome cast cured explosive for epoxy resin.The surface of epoxy resin scribbles ground plane, can touch, and fail safe is good, and metallized ground plane can avoid alternate short trouble, and fail safe is high.Figure middle term 3 represents plain cushion, spring washer; Item 7 represents the earth terminal of isolating switches; Item 11 represents conductive cushion blocks.
During use, the first moulding by casting of radome, plastics during cast, metal dust and metal insert are solidified into integrative-structure, adopt the radome of plastics and metal dust moulding by casting, radome is easy to any shape be molded into as required, such as the square structure used in the present embodiment, arc-extinguishing chamber of circuit breaker, switch arc control device, breaker connection seat, switch wire connection seat and radome are fixed in corresponding casting mold, then be integrated with poured with epoxy resin, to be cast shaping after, layer of metal ground plane is sprayed on surface, then by insulating pull rod for breaker, switch insulation pull bar is assemblied in the moved end of corresponding arc control device, complete galvanic circle is connected to form by flexible link between two arc control device, the moved end of arc-extinguishing chamber of circuit breaker, the moved end of switch arc control device and the tip of flexible link are all in radome, radome shields the effect of most advanced and sophisticated electric field by playing, thus improve the integral insulation level of pole, reach shield effectiveness, the use amount of epoxy resin can be reduced in the material reducing hole arranged between first cavity and the second cavity, contributes to the cost of manufacture further reducing product, breaker connection seat and switch wire connection seat are arranged symmetrically with, and make when needs isolating switch is positioned at below circuit breaker, and directly pole being turned over turnback can use, and the versatility of pole strengthens greatly, also make the layout of ring main unit inside compacter simultaneously, insulation convex edge on the chamber wall of the 3rd cavity can increase the creepage distance of pole, thus can effectively reduce the length of the 3rd cavity, and then reduces the size of product.
In other embodiment of this solid insulation epoxy cabinet: material reducing hole also can not be established; Switch wire connection seat and breaker connection seat can also be arranged all in left-right direction; Fabrication hole on radome also can not be established; Metal insert on radome also can not be established, and now needs the conducting realizing metal dust and conductively-closed part to connector arranging other.
The embodiment of pole is as shown in Fig. 1 ~ 5: the concrete structure of pole is identical with the pole described in above-mentioned each solid insulation ring main unit embodiment, is not described in detail in this.
The embodiment 1 of radome is as shown in Fig. 1 ~ 5: the concrete structure of radome is identical with the radome described in above-mentioned each solid insulation ring main unit embodiment to be not described in detail in this.
The embodiment 2 of radome is as shown in Fig. 6 ~ 8: this radome is applicable to use in other more complicated shielding environment, the first cylindrical shell 30, second cylindrical shell 32 comprising a short length and the connector drum 31 be connected between first, second cylindrical shell, the present embodiment is intended to illustrate that the radome poured into a mould by plastics and metal dust can be shaped to required various shape easily.
Claims (10)
1. solid insulation ring main unit, comprise the pole of cabinet and upper setting thereof, pole comprises insulator, switch arc control device and the arc-extinguishing chamber of circuit breaker of flexible link connection is provided with in insulator, it is characterized in that: insulator is covered with radome in the periphery of described flexible link, radome comprises the plastic body of annular, and in plastic body, cast cured explosive has into a single integrated structure with plastic body and conducts electricity with described flexible link the metal dust be connected.
2. solid insulation ring main unit according to claim 1, is characterized in that: the body wall of plastic body offers the fabrication hole for flowing through during described insulator moulding by casting.
3. solid insulation ring main unit according to claim 1, is characterized in that: described plastic body is installed with and realizes metal dust and described flexible link and conduct electricity the metal insert be connected.
4. the solid insulation ring main unit according to claim 1 ~ 3 any one, it is characterized in that: switch arc control device, arc-extinguishing chamber of circuit breaker are arranged up and down, the switch wire connection seat be connected with the quiet end of switch arc control device is provided with in insulator, be provided with the breaker connection seat be connected with the quiet end of arc-extinguishing chamber of circuit breaker in insulator, switch wire connection seat and breaker connection seat are symmetrical arranged up and down.
5. pole, comprise insulator, switch arc control device and the arc-extinguishing chamber of circuit breaker of flexible link connection is provided with in insulator, it is characterized in that: insulator is covered with radome in the periphery of described flexible link, radome comprises the plastic body of annular, and in plastic body, cast cured explosive has into a single integrated structure with plastic body and conducts electricity with described flexible link the metal dust be connected.
6. pole according to claim 6, is characterized in that: the body wall of plastic body offers the fabrication hole for flowing through during described insulator moulding by casting.
7. the pole according to claim 5 or 6, it is characterized in that: switch arc control device, arc-extinguishing chamber of circuit breaker are arranged up and down, the switch wire connection seat be connected with the quiet end of switch arc control device is provided with in insulator, be provided with the breaker connection seat be connected with the quiet end of arc-extinguishing chamber of circuit breaker in insulator, switch wire connection seat and breaker connection seat are symmetrical arranged up and down.
8. radome, is characterized in that: the plastic body comprising annular, and in plastic body, cast cured explosive has into a single integrated structure to plastic body and for conducting electricity with corresponding conductively-closed part the metal dust be connected.
9. radome according to claim 8, is characterized in that: the body wall of plastic body offers the fabrication hole for flowing through during described insulator moulding by casting.
10. radome according to claim 8 or claim 9, is characterized in that: plastic body is installed with and realizes metal dust and described conductively-closed part and conduct electricity the metal insert be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410457309.3A CN104269768B (en) | 2014-09-10 | 2014-09-10 | Radome and the pole and solid insulation ring main unit using the radome |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410457309.3A CN104269768B (en) | 2014-09-10 | 2014-09-10 | Radome and the pole and solid insulation ring main unit using the radome |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104269768A true CN104269768A (en) | 2015-01-07 |
| CN104269768B CN104269768B (en) | 2017-12-15 |
Family
ID=52161271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410457309.3A Active CN104269768B (en) | 2014-09-10 | 2014-09-10 | Radome and the pole and solid insulation ring main unit using the radome |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104269768B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111952051A (en) * | 2020-07-28 | 2020-11-17 | 国网河南省电力公司电力科学研究院 | Active defense internal discharge sulfur hexafluoride current transformer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19959450B4 (en) * | 1999-12-09 | 2005-10-27 | Elpro Gmbh Berlin-Industrieholding- | Electrical connector, which automatically fills with insulating gas during assembly of insulating gas filled switchgear components |
| CN201352894Y (en) * | 2008-11-07 | 2009-11-25 | 南通芯迎设计服务有限公司 | Electromagnetic shielding shell |
| CN101997273A (en) * | 2010-10-27 | 2011-03-30 | 北京双杰电气股份有限公司 | Insulating cover for solid insulating fully sealed switch |
| CN202678199U (en) * | 2012-07-23 | 2013-01-16 | 庞新显 | A high-voltage vacuum circuit breaker on an outdoor column |
| CN103151723A (en) * | 2013-04-07 | 2013-06-12 | 深圳市金博联电力技术有限公司 | Completely-sealed and complete-solid insulation ring main unit |
| CN103166143A (en) * | 2012-12-24 | 2013-06-19 | 刘晓颖 | Solid dead 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 |
| CN204068008U (en) * | 2014-09-10 | 2014-12-31 | 平高集团有限公司 | A kind of radome and use pole and the solid insulation ring main unit of this radome |
-
2014
- 2014-09-10 CN CN201410457309.3A patent/CN104269768B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19959450B4 (en) * | 1999-12-09 | 2005-10-27 | Elpro Gmbh Berlin-Industrieholding- | Electrical connector, which automatically fills with insulating gas during assembly of insulating gas filled switchgear components |
| CN201352894Y (en) * | 2008-11-07 | 2009-11-25 | 南通芯迎设计服务有限公司 | Electromagnetic shielding shell |
| CN101997273A (en) * | 2010-10-27 | 2011-03-30 | 北京双杰电气股份有限公司 | Insulating cover for solid insulating fully sealed switch |
| CN202678199U (en) * | 2012-07-23 | 2013-01-16 | 庞新显 | A high-voltage vacuum circuit breaker on an outdoor column |
| CN103166143A (en) * | 2012-12-24 | 2013-06-19 | 刘晓颖 | Solid dead ring main unit |
| CN103151723A (en) * | 2013-04-07 | 2013-06-12 | 深圳市金博联电力技术有限公司 | Completely-sealed and complete-solid insulation 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 |
| CN204068008U (en) * | 2014-09-10 | 2014-12-31 | 平高集团有限公司 | A kind of radome and use pole and the solid insulation ring main unit of this radome |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111952051A (en) * | 2020-07-28 | 2020-11-17 | 国网河南省电力公司电力科学研究院 | Active defense internal discharge sulfur hexafluoride current transformer |
| CN111952051B (en) * | 2020-07-28 | 2022-04-22 | 国网河南省电力公司电力科学研究院 | Active defense internal discharge sulfur hexafluoride current transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104269768B (en) | 2017-12-15 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160105 Address after: South East of Pingdingshan city in Henan province 467001 No. 22 Applicant after: Pinggao Group Co., Ltd. Applicant after: State Grid Corporation of China Applicant after: Henan high General Electric Co., Ltd. Address before: South East of Pingdingshan city in Henan province 467001 No. 22 Applicant before: Pinggao Group Co., Ltd. Applicant before: State Grid Corporation of China |
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