CN104269316A - Solid-sealed polar pole and solid insulation ring main units using same - Google Patents
Solid-sealed polar pole and solid insulation ring main units using same Download PDFInfo
- Publication number
- CN104269316A CN104269316A CN201410457277.7A CN201410457277A CN104269316A CN 104269316 A CN104269316 A CN 104269316A CN 201410457277 A CN201410457277 A CN 201410457277A CN 104269316 A CN104269316 A CN 104269316A
- Authority
- CN
- China
- Prior art keywords
- switch
- insulator
- circuit breaker
- arc
- control device
- 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
- 238000009413 insulation Methods 0.000 title claims abstract description 36
- 239000007787 solid Substances 0.000 title claims abstract description 24
- 239000012212 insulator Substances 0.000 claims abstract description 52
- 229910052751 metal Inorganic materials 0.000 claims description 22
- 239000002184 metal Substances 0.000 claims description 22
- 239000000428 dust Substances 0.000 claims description 17
- 239000004033 plastic Substances 0.000 claims description 15
- 229920003023 plastic Polymers 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 9
- 239000002360 explosive Substances 0.000 claims description 6
- 238000005266 casting Methods 0.000 abstract description 5
- 230000003068 static effect Effects 0.000 abstract 2
- 239000003822 epoxy resin Substances 0.000 description 8
- 229920000647 polyepoxide Polymers 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000004308 accommodation Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000465 moulding 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
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007493 shaping process 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
- 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
- H01H33/6606—Terminal arrangements
-
- 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
- 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 solid-sealed polar pole and solid insulation ring main units using the solid-sealed polar pole. The solid-sealed polar pole comprises an insulator. A switch arc extinguish chamber and a circuit breaker arc extinguish chamber are vertically arranged inside the insulator. A switch wire holder connected with the static end of the switch arc extinguish chamber is arranged inside the insulator. A circuit breaker wire holder connected with the static end of the circuit breaker arc extinguish chamber is arranged inside the insulator. The switch wire holder and the circuit breaker wire holder are vertically and symmetrically arranged. After the vertically symmetric structure is adopted, normal use of the switch wire holder and the circuit breaker wire holder is not affected after the solid-sealed polar pile is turned over by 180 degrees. When the position of a disconnecting switch needs to be changed, for example, when the disconnecting switch needs to be arranged below a circuit breaker, the solid-sealed polar pole can be used only by being turned over by 180 degrees, the solid-sealed polar pile does not need to be cast again with other insulator casting molds, and the solid-sealed polar pile is good in universality and applicable to the different ring main units.
Description
Technical field
The present invention relates to pole and use the solid insulation ring main unit of this pole.
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, 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, 2, the insulator of solid construction also can waste a large amount of mould materials, increases the cost 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, in order to reduce the use amount of mould material, the cross sectional shape of the 3rd vestibule is rectangle, this just causes to arrange metallic shield in the flexible link periphery of easy point discharge, because metallic shield is easily processed into revolution shape, and the erose radome processing difficulties of non-revolved body, processing cost are high, this just makes product not adopt shield technology, cannot avoid point discharge problem.
Summary of the invention
The object of the present invention is to provide a kind of pole, to solve in prior art because breaker connection seat, the vertical asymmetric setting of arc control device junction block and cause the problem of pole poor universality; The present invention also aims to provide a kind of solid insulation ring main unit using this pole.
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, the switch arc control device and arc-extinguishing chamber of circuit breaker arranged up and down are provided with in insulator, 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.
Between described switch arc control device, arc-extinguishing chamber of circuit breaker, material reducing hole is provided with in described insulator.
Being provided with the 3rd cavity extended in left-right direction for holding respective switch insulated tension pole, insulating pull rod for breaker in described insulator in the right side of described switch arc control device, arc-extinguishing chamber of circuit breaker, the chamber wall of the 3rd cavity being arranged at intervals with in left-right direction multi-turn and the integrated insulation convex edge of insulator.
Be connected by flexible link between the right-hand member of switch arc control device and the right-hand member of arc-extinguishing chamber of circuit breaker, insulator is installed with radome in the periphery of described flexible link, radome comprises plastic body and the metal dust into a single integrated structure with plastic body cast cured explosive, and metal dust is electrically connected with flexible link.
Be connected by busbar between switch arc control device and the right-hand member of arc-extinguishing chamber of circuit breaker, busbar offer respectively for the perforation that the moved end of switch arc control device, arc-extinguishing chamber of circuit breaker slides through.
In the present invention, the technical scheme of pole is:
Pole, comprise insulator, the switch arc control device and arc-extinguishing chamber of circuit breaker arranged up and down are provided with in insulator, 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.
Between described switch arc control device, arc-extinguishing chamber of circuit breaker, material reducing hole is provided with in described insulator.
Being provided with the 3rd cavity extended in left-right direction for holding respective switch insulated tension pole, insulating pull rod for breaker in described insulator in the right side of described switch arc control device, arc-extinguishing chamber of circuit breaker, the chamber wall of the 3rd cavity being arranged at intervals with in left-right direction multi-turn and the integrated insulation convex edge of insulator.
Insulator is installed with the radome of the periphery for covering at the flexible link between switch arc control device, arc-extinguishing chamber of circuit breaker right-hand member, radome comprises plastic body and the metal dust into a single integrated structure with plastic body cast cured explosive, and metal dust is electrically connected with flexible link.
Be connected by busbar between switch arc control device and the right-hand member of arc-extinguishing chamber of circuit breaker, busbar offer respectively for the perforation that the moved end of switch arc control device, arc-extinguishing chamber of circuit breaker slides through.
Beneficial effect of the present invention is: switch wire connection seat and breaker connection seat are symmetrical arranged up and down, after adopting upper and lower symmetrical structure, the normal use of switch wire connection seat and breaker connection seat can not be affected after pole turns over turnback, when needs isolating switch changes position such as when needing isolating switch to be arranged at below circuit breaker, only need pole to be turned over turnback can use, the insulator casting mold using other is not needed again to pour into a mould pole, the versatility of pole is good, goes for using in different ring main units.
Accompanying drawing explanation
Fig. 1 is the structural representation of pole in the embodiment 1 of solid insulation ring main unit of the present invention;
Fig. 2 is that A-A in Fig. 1 is to cutaway view;
Fig. 3 is the structural representation of the radome in Fig. 1;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is that the B-B of Fig. 3 is to cutaway view;
Fig. 6 is the structural representation of pole in the embodiment 2 of solid insulation ring main unit of the present invention.
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 and the metal dust into a single integrated structure with plastic body cast cured explosive, 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, radome plays the effect of the most advanced and sophisticated electric field in shielding local, thus improve the integral insulation level of pole, 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 2 of solid insulation ring main unit is as shown in Figure 6: embodiment 2 as different from Example 1, the right-hand member of arc-extinguishing chamber of circuit breaker is connected not by flexible link with the right-hand member of switch arc control device, but connected by busbar 20, busbar offers and supplies switch arc control device respectively, the perforation that the moved end of arc-extinguishing chamber of circuit breaker slides through, watchband-shaped contactor is provided with in perforation, by busbar and switch arc control device, the sliding conduction cooperation of the moved end of arc-extinguishing chamber of circuit breaker realizes switch arc control device, conducting between arc-extinguishing chamber of circuit breaker, because the point discharge position of busbar is few, therefore without the need to arranging radome.
The embodiment of pole is as shown in Fig. 1 ~ 6: 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.
Claims (10)
1. solid insulation ring main unit, comprise the pole of cabinet and upper setting thereof, pole comprises insulator, the switch arc control device and arc-extinguishing chamber of circuit breaker arranged up and down are provided with in insulator, 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, it is characterized in that: switch wire connection seat and breaker connection seat are symmetrical arranged up and down.
2. solid insulation ring main unit according to claim 1, is characterized in that: between described switch arc control device, arc-extinguishing chamber of circuit breaker, be provided with material reducing hole in described insulator.
3. solid insulation ring main unit according to claim 1, it is characterized in that: being provided with the 3rd cavity extended in left-right direction for holding respective switch insulated tension pole, insulating pull rod for breaker in described insulator in the right side of described switch arc control device, arc-extinguishing chamber of circuit breaker, the chamber wall of the 3rd cavity being arranged at intervals with in left-right direction multi-turn and the integrated insulation convex edge of insulator.
4. the solid insulation ring main unit according to claim 1 ~ 3 any one, it is characterized in that: be connected by flexible link between the right-hand member of switch arc control device and the right-hand member of arc-extinguishing chamber of circuit breaker, insulator is installed with radome in the periphery of described flexible link, radome comprises plastic body and the metal dust into a single integrated structure with plastic body cast cured explosive, and metal dust is electrically connected with flexible link.
5. the solid insulation ring main unit according to claim 1 ~ 3 any one, it is characterized in that: be connected by busbar between switch arc control device and the right-hand member of arc-extinguishing chamber of circuit breaker, busbar offers respectively for the perforation that the moved end of switch arc control device, arc-extinguishing chamber of circuit breaker slides through.
6. pole, comprise insulator, the switch arc control device and arc-extinguishing chamber of circuit breaker arranged up and down are provided with in insulator, 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, it is characterized in that: switch wire connection seat and breaker connection seat are symmetrical arranged up and down.
7. pole according to claim 6, is characterized in that: between described switch arc control device, arc-extinguishing chamber of circuit breaker, be provided with material reducing hole in described insulator.
8. pole according to claim 6, it is characterized in that: being provided with the 3rd cavity extended in left-right direction for holding respective switch insulated tension pole, insulating pull rod for breaker in described insulator in the right side of described switch arc control device, arc-extinguishing chamber of circuit breaker, the chamber wall of the 3rd cavity being arranged at intervals with in left-right direction multi-turn and the integrated insulation convex edge of insulator.
9. the pole according to claim 6 ~ 8 any one, it is characterized in that: radome insulator being installed with the periphery for covering at the flexible link between switch arc control device, arc-extinguishing chamber of circuit breaker right-hand member, radome comprises plastic body and the metal dust into a single integrated structure with plastic body cast cured explosive, and metal dust is electrically connected with flexible link.
10. the pole according to claim 6 ~ 8 any one, it is characterized in that: be connected by busbar between switch arc control device and the right-hand member of arc-extinguishing chamber of circuit breaker, busbar offers respectively for the perforation that the moved end of switch arc control device, arc-extinguishing chamber of circuit breaker slides through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410457277.7A CN104269316B (en) | 2014-09-10 | 2014-09-10 | Pole and the solid insulation ring main unit using the pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410457277.7A CN104269316B (en) | 2014-09-10 | 2014-09-10 | Pole and the solid insulation ring main unit using the pole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104269316A true CN104269316A (en) | 2015-01-07 |
| CN104269316B CN104269316B (en) | 2018-03-02 |
Family
ID=52160828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410457277.7A Active CN104269316B (en) | 2014-09-10 | 2014-09-10 | Pole and the solid insulation ring main unit using the pole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104269316B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111837213A (en) * | 2018-03-19 | 2020-10-27 | 株式会社日立产机系统 | Solid insulation type vacuum switch |
| CN112736708A (en) * | 2020-12-30 | 2021-04-30 | 湖南平高开关有限公司 | Box transformer substation capable of avoiding internal arcing fault risk |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE19502062A1 (en) * | 1995-01-13 | 1996-07-18 | Siemens Ag | Contact piece for encapsulated MV switch appts. |
| CN201352894Y (en) * | 2008-11-07 | 2009-11-25 | 南通芯迎设计服务有限公司 | Electromagnetic shielding shell |
| CN202221871U (en) * | 2011-09-09 | 2012-05-16 | 许昌永新电器设备有限公司 | Linear-shaped phase to phase all-solid insulating middle/high voltage switchgear |
| CN102882148A (en) * | 2012-10-23 | 2013-01-16 | 福建中能电气股份有限公司 | Solid insulation 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 |
| CN204067176U (en) * | 2014-09-10 | 2014-12-31 | 平高集团有限公司 | A kind of pole and use the solid insulation ring main unit of this pole |
-
2014
- 2014-09-10 CN CN201410457277.7A patent/CN104269316B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19502062A1 (en) * | 1995-01-13 | 1996-07-18 | Siemens Ag | Contact piece for encapsulated MV switch appts. |
| CN201352894Y (en) * | 2008-11-07 | 2009-11-25 | 南通芯迎设计服务有限公司 | Electromagnetic shielding shell |
| CN202221871U (en) * | 2011-09-09 | 2012-05-16 | 许昌永新电器设备有限公司 | Linear-shaped phase to phase all-solid insulating middle/high voltage switchgear |
| CN202678199U (en) * | 2012-07-23 | 2013-01-16 | 庞新显 | A high-voltage vacuum circuit breaker on an outdoor column |
| CN102882148A (en) * | 2012-10-23 | 2013-01-16 | 福建中能电气股份有限公司 | Solid insulation switch |
| CN103166143A (en) * | 2012-12-24 | 2013-06-19 | 刘晓颖 | Solid dead ring main unit |
| CN204067176U (en) * | 2014-09-10 | 2014-12-31 | 平高集团有限公司 | A kind of pole and use the solid insulation ring main unit of this pole |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111837213A (en) * | 2018-03-19 | 2020-10-27 | 株式会社日立产机系统 | Solid insulation type vacuum switch |
| CN111837213B (en) * | 2018-03-19 | 2022-08-26 | 株式会社日立产机系统 | Solid insulation type vacuum switch |
| CN112736708A (en) * | 2020-12-30 | 2021-04-30 | 湖南平高开关有限公司 | Box transformer substation capable of avoiding internal arcing fault risk |
| CN112736708B (en) * | 2020-12-30 | 2023-03-21 | 湖南平高开关有限公司 | Box transformer substation capable of avoiding internal arcing fault risk |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104269316B (en) | 2018-03-02 |
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| 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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