CN106128850A - A kind of outdoor high-voltage pole or automatic circuit - Google Patents
A kind of outdoor high-voltage pole or automatic circuit Download PDFInfo
- Publication number
- CN106128850A CN106128850A CN201610712857.5A CN201610712857A CN106128850A CN 106128850 A CN106128850 A CN 106128850A CN 201610712857 A CN201610712857 A CN 201610712857A CN 106128850 A CN106128850 A CN 106128850A
- Authority
- CN
- China
- Prior art keywords
- connection part
- shading ring
- conductive connection
- automatic circuit
- outdoor high
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
-
- 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
- H01H33/02—Details
-
- 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
- H01H33/02—Details
- H01H33/027—Integrated apparatus for measuring current or voltage
-
- 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
Landscapes
- Insulators (AREA)
Abstract
The invention discloses a kind of outdoor high-voltage pole or automatic circuit, including solid insulation housing, upper incoming line conductor, capacitor, vacuum interrupter, lower outlet conductor, transition conductive connection part and ground plane, it is provided with upper incoming line conductor in described solid insulation housing, capacitor, vacuum interrupter, lower outlet conductor, transition conductive connection part, described ground plane is located on the outer surface of solid insulation housing, described vacuum interrupter upper, lower end is respectively equipped with, lower shading ring, it is provided with a shading ring in the lower end of transition conductive connection part, it is additionally provided with temperature sensor in the side of transition conductive connection part.The present invention is by introducing the designs such as ground plane, shading ring, temperature sensor; make obtained outdoor high-voltage pole or the automatic circuit can be with the current/voltage in measurement circuitry; protection equipment, and it is affected by less, and then reliability, stability and the safety etc. of entirety can be improved.
Description
Technical field
The present invention relates to the field of electrical equipment in power system, protect particularly to the outlet for distribution line and set
Standby, or be used in the middle part of distribution line and important branch line entrance protects equipment as line sectionalizing, particularly relate to a kind of reliably
Outdoor high-voltage pole or automatic circuit.
Background technology
Existing outdoor high-voltage vacuum breaker or automatic circuit generally use pole structure, owing to this product generally uses
In open air, affected relatively big by surrounding such as air pressure, humidity, density, dust etc., therefore typically require higher creepage away from
From requiring, therefore overall full skirt is more, and entirety is bigger.The strongest at the area of some bad environments, ultraviolet or soda acid
It is easily destroyed the strand of epoxy resin, so that material is destroyed, causes product failure.
Solid insulation technology refers to that a main high voltage components and parts is by the automatic gel of APG(vacuum pressure) etc. technique watered
Casting, in solid insulating material is such as epoxy resin, utilizes solid insulating material to compare air and has higher insulating properties and ensure
The reliability of product, along with the development of technology, at present by means such as spray metals, insulator top layer so that top layer can be reliable
Ground connection, makes solid insulating material give play to higher insulating properties further.External surface grounded additionally, due to it, human body in operation
Accessible, safe and reliable.
Patent (application number 201310751957, publication number 103681095A, March 26 2014 publication date) discloses
A kind of outdoor high voltage solid-sealed polar pole vacuum circuit breaker or recloser, the pole internal upper part in this vacuum circuit breaker or automatic circuit
Encapsulated vacuum arc-chutes, the lower switch contact of vacuum interrupter through being flexible coupling and lower wire end daughter board conductive attachment, this lower switch
Conducting rod between contact and insulated tension pole is through conduction ring seat centre bore, with conduction ring seat centre bore through conduction watch chain conduction even
Connect.This product entirety is relatively big, and outside full skirt is more, and shared material and use space are more, cannot be used for measurement circuitry simultaneously
Voltage, power and electric energy, or be used for when line failure the expensive equipment in protection circuit, additionally soft in this product
The conducting position tips such as connection are more, it is impossible to ensure the reliability of its entirety, simultaneously because outside its solid insulating material be by
Air insulate, and is therefore affected by bigger.
Summary of the invention
For the problems referred to above, it is an object of the invention to provide a kind of outdoor high-voltage pole or automatic circuit, this sealing
Pole or automatic circuit can be protected equipment, and are affected by less with the current/voltage in measurement circuitry, and then can carry
High overall reliability, stability and safety etc..
For reaching above-mentioned purpose, technical scheme proposed by the invention is: a kind of outdoor high-voltage pole or automatic circuit,
Including solid insulation housing, upper incoming line conductor, capacitor, vacuum interrupter, lower outlet conductor, transition conductive connection part and ground connection
Layer, is provided with upper incoming line conductor, capacitor, vacuum interrupter, lower outlet conductor, transition are conductively connected in described solid insulation housing
Portion, the both sides of described upper incoming line conductor and lower outlet conductor are equipped with capacitor；The upper end of described vacuum interrupter and upper incoming line
Conductor is connected, and its lower end is connected with transition conductive connection part, and described lower outlet conductor is connected with transition conductive connection part；
Described ground plane is arranged on the outer surface of described solid insulation housing.
Further, also including shading ring and lower shading ring, described upper shading ring is located at the upper end of vacuum interrupter, institute
State lower shading ring and be located at the lower end of vacuum interrupter.
Further, also include that transition conductive connection part shading ring, described transition conductive connection part shading ring are located at transition
The lower end of conductive connection part.
Further, the side of described transition conductive connection part is provided with outlet current transformer, one end of lower outlet conductor
It is connected through rear with transition conductive connection part from outlet current transformer.
Further, described upper shading ring, lower shading ring, transition conductive connection part shading ring use conductive material to make,
Or use a certain proportion of carbon fiber of interpolation such as thermoplastic such as PA, PBT, PC make or carry out on its surface conductive paint,
Metal spraying, described conductive material is aluminum or copper.
Further, described ground plane is product surface conductive layer or semi-conductive layer, it is possible to achieve with earthy reliably
Connect.This ground plane can use metal spraying or brush-plating technique after production is complete again after being processed by surface sand-blasting
Make, it is also possible to directly brush on mould top layer when production.
Further, described capacitor is becket capacitor or ceramic capacitor.
Further, embedding a temperature sensor in described lower outlet conductor, described temperature sensor is temperature sensing optical fiber.
Further, during described outlet current transformer is covered by conduction or semiconductive framework.
Use technique scheme, the method have the advantages that
(1) by arranging ground plane in solid insulation housing outer surface, can realize being reliably connected with earthy, make whole simultaneously
Bulk electric field is only distributed in solid insulation housing, and the insulation of product is independent of outside influences, and therefore need not outside full skirt, can improve
Overall reliability；
(2) by arranging shading ring and lower shading ring in solid insulation housing, embedded shielding construction, shape are constituted between the two
Become the less shielding fracture of distance, played the advantage of the high disruptive field intensity of solid insulating material, decreased outdoor switch easily by ring
Border impact needs special material and needs higher creep age distance requirement；The optimization shielding particularly introduced in vacuum interrupter
Fracture so that the induced voltage of the grading ring that vacuum extinction is indoor remains 40% to the 60% of the overall resistance to pressure request of product,
The field strength distribution of vacuum extinction chamber interior fracture is more uniform, solves vacuum interrupter in conventional solid insulation shell and punctures
The problem that resistance to voltage levels is relatively low, the design of rational embedded shielding construction makes whole equipment size be reduced, and equipment is the tightest
Gather, make equipment have higher reliability, stability and safety simultaneously；
(3) in line conductor, be provided with capacitor summation current transformer, the electric current that can be used for measuring in pole, voltage,
Power etc., separately can also add temperature sensor, such as temperature sensing optical fiber wherein, can realize the real-time prison to product temperature
Control, it is to avoid temperature is too high to be damaged product, beneficially the protection of equipment, can improve reliability, stability and the peace of entirety
Quan Xing, is the developing direction of intelligent electrical apparatus.
Accompanying drawing explanation
Fig. 1 is the structure cross-sectional schematic of the present invention；
Wherein: 1. solid insulation housing；2. upper incoming line conductor；3. capacitor；4. vacuum interrupter；Shading ring on 401.；402.
Lower shading ring；5. descend outlet conductor；6. transition conductive connection part；601. transition conductive connection part shading rings；7. ground plane；8.
Outlet current transformer.
Detailed description of the invention
Below in conjunction with the accompanying drawings and detailed description of the invention, the present invention will be further described.
As it is shown in figure 1, a kind of outdoor high-voltage pole or automatic circuit, including solid insulation housing 1, upper incoming line conductor 2,
Capacitor 3, vacuum interrupter 4, lower outlet conductor 5, transition conductive connection part 6 and ground plane 7, set in described solid insulation housing
There are upper incoming line conductor 2, capacitor 3, vacuum interrupter 4, lower outlet conductor 5, transition conductive connection part 6, described upper incoming line conductor 2
It is equipped with capacitor 3 with the both sides of lower outlet conductor 5；The upper end of described vacuum interrupter 4 is connected with upper incoming line conductor 2, its
Lower end is connected with transition conductive connection part 6, and described lower outlet conductor 5 is connected with transition conductive connection part 6；Described ground plane
On 7 outer surfaces being arranged on described solid insulation housing 1.
Solid insulation housing 1 is generally formed by the solid insulating material filled casting of such as epoxy resin, it is also possible to be other
Novel insulant is made, solid insulation housing 1 exocuticle ground connection.
Further, also include that shading ring 401 and lower shading ring 402, described upper shading ring 401 are located at vacuum interrupter
The upper end of 4, described lower shading ring 402 is located at the lower end of vacuum interrupter 4.Due to the setting of ground plane 7, overall Electric Field Distribution is only
In solid insulation housing 1, the insulation of product, not by external environment influence, therefore need not outside full skirt, but insulation shell 1
In electric field there is change drastically, in the use of current product, often occur that vacuum interrupter 4 is pressure and lightning impulse
Puncture, degradation problem under dielectric level.For improving overall reliability, stability and safety, the present invention is by careful
Analysis and design, vacuum interrupter 4 upper and lower side introduce on shading ring 401 and lower shading ring 402, not only shield vacuum extinction
The tip of room 4 and three intersection points etc., be incorporated into fracture in solid insulation housing 1 simultaneously, ensures that vacuum is gone out by reasonably arranging
Shading ring voltage in arc chamber 4 remains between 40% to the 60% of global voltage so that the performance of vacuum interrupter 4 is not subject to
The impact that ground plane 7 introduces, it is ensured that the electric property of product.
Further, also include that transition conductive connection part shading ring 601, described transition conductive connection part shading ring 601 set
Lower end at transition conductive connection part 6.In transition conductive connection part 6, also due to the introducing of ground plane 7 makes internal electric field
Generation violent change, conductor tip and internal gas gap are less causes product to use electric discharge phenomena the most serious.In transition conduction even
The lower end meeting portion 6 sets a shading ring 601, and the high pressure of transition conductive connection part 6 lower end can be incorporated into solid insulation housing 1 by it
In, its lower end fracture over the ground is incorporated into solid insulation housing 1 internal so that interiors of products need not arrange unnecessary umbrella
Skirt, decreases the external environment condition impact on it, the reliability of equipment, stability and safety can be made to be improved, give birth to simultaneously
The product demoulding is simple.
Ground plane 7 is product surface conduction or semi-conductive layer, and it can realize being reliably connected with earthy.This ground plane
7 can be after production be complete, by using metal spraying or brush-plating technique again after the surface sand-blasting of solid insulation housing 1 processes
Make, it is also possible to directly make at mould top layer brush when production.
It is conductively connected reliably to make high potential conductor can be formed with above-mentioned shading ring, and then improves the reliable of entirety
Property, stability and safety, above-mentioned shading ring can be made of an electrically conducting material, and conductive material generally uses aluminum or copper, it is possible to uses
Other metal, the present invention is not limited.In order to avoid deformation and the design requirement of special shape, it is also possible to by using thermoplastic
Property material add a certain proportion of carbon fiber and make, or carry out conductive paint, metal spraying on its surface, with ensure its performance and
Special shape requirement, described thermoplastic can be PA, PBT, PC etc., it is possible to for other thermoplastic, the present invention is not with this
It is limited.
In order to measure the performances such as electric current in pole, voltage, power, the side of transition conductive connection part 6 is provided with out
Line current transformer 8, one end of lower outlet conductor 5 connects through rear with transition conductive connection part 6 from outlet current transformer 8
Connect.This outlet current transformer 8 in production for ensureing its position and the stability of production technology, can use conduction or
Current transformer is coated with wherein by semiconductive framework, thus shields it, eliminates poor attachment after it is combined with insulation shell
Problem.
Above-mentioned capacitor 3 can use becket capacitor, it would however also be possible to employ ceramic capacitor, but is not limited, and passes through
This capacitor 3 can be used to the voltage measuring in pole.
In order to monitor the temperature of product, a temperature sensor, such as temperature sensing optical fiber can be embedded in lower outlet conductor, from
And realizing the real-time monitoring to product temperature, it is to avoid temperature rise is too high to be damaged product, can improve the reliability of equipment, stablize
Property and safety.
The present invention, by introducing the designs such as ground plane, shading ring, temperature sensor, makes obtained outdoor high-voltage sealing pole
Post or automatic circuit can be protected equipment, and are affected by less with the current/voltage in measurement circuitry, and then can improve
Overall reliability, stability and safety etc..
Although specifically showing and describe the present invention in conjunction with preferred embodiment, but those skilled in the art should be bright
In vain, in the spirit and scope of the present invention limited without departing from appended claims, in the form and details to this
Bright make a variety of changes, be protection scope of the present invention.
Claims (10)
1. an outdoor high-voltage pole or automatic circuit, it is characterised in that include solid insulation housing, upper incoming line conductor, electricity
Container, vacuum interrupter, lower outlet conductor, transition conductive connection part and ground plane, be provided with enterprising in described solid insulation housing
Line conductor, capacitor, vacuum interrupter, lower outlet conductor, transition conductive connection part, described upper incoming line conductor and lower outlet conductor
Both sides be equipped with capacitor；The upper end of described vacuum interrupter is connected with upper incoming line conductor, and its lower end is with transition conduction even
The portion of connecing is connected, and described lower outlet conductor is connected with transition conductive connection part；Described ground plane is arranged on described solid insulation
On the outer surface of housing.
2. a kind of outdoor high-voltage pole as claimed in claim 1 or automatic circuit, it is characterised in that also include shading ring
With lower shading ring, described upper shading ring is located at the upper end of vacuum interrupter, and described lower shading ring is located at the lower end of vacuum interrupter.
3. a kind of outdoor high-voltage pole as claimed in claim 1 or 2 or automatic circuit, it is characterised in that also include transition
Conductive connection part shading ring, described transition conductive connection part shading ring is located at the lower end of transition conductive connection part.
4. a kind of outdoor high-voltage pole as claimed in claim 1 or 2 or automatic circuit, it is characterised in that described transition is led
The side of electrical connection section is provided with outlet current transformer, and one end of lower outlet conductor passes rear and mistake from outlet current transformer
Cross conductive connection part to connect.
5. a kind of outdoor high-voltage pole as claimed in claim 3 or automatic circuit, it is characterised in that described upper shading ring,
Lower shading ring, transition conductive connection part shading ring use conductive material to make, or it is a certain proportion of to use thermoplastic to add
Carbon fiber is made, or carries out conductive paint, metal spraying on its surface, and described conductive material is aluminum or copper, described thermoplastic
For PA, PBT or PC.
6. a kind of outdoor high-voltage pole as claimed in claim 1 or 2 or automatic circuit, it is characterised in that described ground plane
For product surface conductive layer or semi-conductive layer.
7. a kind of outdoor high-voltage pole as claimed in claim 1 or 2 or automatic circuit, it is characterised in that described capacitor
For becket capacitor or ceramic capacitor.
8. a kind of outdoor high-voltage pole as claimed in claim 1 or 2 or automatic circuit, it is characterised in that described lower outlet
Embedding a temperature sensor in conductor, described temperature sensor is temperature sensing optical fiber.
9. outdoor high-voltage pole as claimed in claim 4 a kind of or automatic circuit, it is characterised in that described in go out line current mutual
Sensor is covered by conduction or semiconductive framework.
10. a kind of outdoor high-voltage pole as claimed in claim 6 or automatic circuit, it is characterised in that described ground plane exists
After production is complete, metal spraying or brush-plating technique after being processed by surface sand-blasting, is used to make again, or when production
Directly brush on mould top layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610712857.5A CN106128850A (en) | 2016-08-24 | 2016-08-24 | A kind of outdoor high-voltage pole or automatic circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610712857.5A CN106128850A (en) | 2016-08-24 | 2016-08-24 | A kind of outdoor high-voltage pole or automatic circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106128850A true CN106128850A (en) | 2016-11-16 |
Family
ID=57274167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610712857.5A Pending CN106128850A (en) | 2016-08-24 | 2016-08-24 | A kind of outdoor high-voltage pole or automatic circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106128850A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108172454A (en) * | 2018-01-06 | 2018-06-15 | 北海银河开关设备有限公司 | Electric locomotive high-voltage circuitbreaker |
| CN108320990A (en) * | 2018-01-06 | 2018-07-24 | 北海银河开关设备有限公司 | A kind of electric locomotive circuit breaker polar |
| CN108550493A (en) * | 2018-03-30 | 2018-09-18 | 武汉市武昌电控设备有限公司 | Electronic type voltage transformer is pressed in a kind of switch integrated |
| CN110473740A (en) * | 2018-05-10 | 2019-11-19 | 天津平高智能电气有限公司 | A kind of pole of integrated current mutual inductor |
| CN110993423A (en) * | 2019-12-04 | 2020-04-10 | 厦门环缘电力科技有限公司 | One-time and two-time fusion outdoor solid-sealed polar pole |
| CN111480212A (en) * | 2017-12-15 | 2020-07-31 | 西门子股份公司 | High-voltage power switch and method for electromagnetically shielding a vacuum interrupter in an insulator |
| CN111837213A (en) * | 2018-03-19 | 2020-10-27 | 株式会社日立产机系统 | Solid insulation type vacuum switch |
| CN112185752A (en) * | 2020-09-28 | 2021-01-05 | 许继集团有限公司 | Solid-sealed polar pole |
| CN114203371A (en) * | 2021-11-09 | 2022-03-18 | 北京中车赛德铁道电气科技有限公司 | Conductive insert connecting structure for solid insulation module |
| CN115313296A (en) * | 2022-09-02 | 2022-11-08 | 国网福建省电力有限公司电力科学研究院 | Novel air insulation cable joint sleeve structure for ring main unit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5234370A (en) * | 1975-08-27 | 1977-03-16 | Gen Electric | Vacuum breaker |
| CN1868015A (en) * | 2003-10-15 | 2006-11-22 | G&W电气公司 | Shielded encapsulated vacuum interrupter |
| CN102522269A (en) * | 2011-12-27 | 2012-06-27 | 日新恒通电气有限公司 | Intelligent circuit breaker |
| CN203192683U (en) * | 2013-04-09 | 2013-09-11 | 霍立克电气（武汉）有限公司 | Integrated intelligent circuit breaker with inrush current suppression |
| CN205900431U (en) * | 2016-08-24 | 2017-01-18 | 厦门普力维电气科技有限公司 | Solid utmost point post or coincidence ware of sealing of outdoor high pressure |
-
2016
- 2016-08-24 CN CN201610712857.5A patent/CN106128850A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5234370A (en) * | 1975-08-27 | 1977-03-16 | Gen Electric | Vacuum breaker |
| CN1868015A (en) * | 2003-10-15 | 2006-11-22 | G&W电气公司 | Shielded encapsulated vacuum interrupter |
| CN102522269A (en) * | 2011-12-27 | 2012-06-27 | 日新恒通电气有限公司 | Intelligent circuit breaker |
| CN203192683U (en) * | 2013-04-09 | 2013-09-11 | 霍立克电气（武汉）有限公司 | Integrated intelligent circuit breaker with inrush current suppression |
| CN205900431U (en) * | 2016-08-24 | 2017-01-18 | 厦门普力维电气科技有限公司 | Solid utmost point post or coincidence ware of sealing of outdoor high pressure |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111480212B (en) * | 2017-12-15 | 2022-11-04 | 西门子能源全球有限公司 | High-voltage power switch and method for electromagnetically shielding a vacuum interrupter in an insulator |
| CN111480212A (en) * | 2017-12-15 | 2020-07-31 | 西门子股份公司 | High-voltage power switch and method for electromagnetically shielding a vacuum interrupter in an insulator |
| CN108320990A (en) * | 2018-01-06 | 2018-07-24 | 北海银河开关设备有限公司 | A kind of electric locomotive circuit breaker polar |
| CN108172454A (en) * | 2018-01-06 | 2018-06-15 | 北海银河开关设备有限公司 | Electric locomotive high-voltage circuitbreaker |
| CN111837213B (en) * | 2018-03-19 | 2022-08-26 | 株式会社日立产机系统 | Solid insulation type vacuum switch |
| CN111837213A (en) * | 2018-03-19 | 2020-10-27 | 株式会社日立产机系统 | Solid insulation type vacuum switch |
| CN108550493A (en) * | 2018-03-30 | 2018-09-18 | 武汉市武昌电控设备有限公司 | Electronic type voltage transformer is pressed in a kind of switch integrated |
| CN108550493B (en) * | 2018-03-30 | 2020-11-24 | 武汉市武昌电控设备有限公司 | Switch integration middling pressure electronic voltage transformer |
| CN110473740A (en) * | 2018-05-10 | 2019-11-19 | 天津平高智能电气有限公司 | A kind of pole of integrated current mutual inductor |
| CN110473740B (en) * | 2018-05-10 | 2021-10-12 | 天津平高智能电气有限公司 | Solid-sealed polar pole integrated with current transformer |
| CN110993423A (en) * | 2019-12-04 | 2020-04-10 | 厦门环缘电力科技有限公司 | One-time and two-time fusion outdoor solid-sealed polar pole |
| CN112185752A (en) * | 2020-09-28 | 2021-01-05 | 许继集团有限公司 | Solid-sealed polar pole |
| CN114203371A (en) * | 2021-11-09 | 2022-03-18 | 北京中车赛德铁道电气科技有限公司 | Conductive insert connecting structure for solid insulation module |
| CN114203371B (en) * | 2021-11-09 | 2024-04-02 | 北京中车赛德铁道电气科技有限公司 | Conductive insert connecting structure for solid insulation module |
| CN115313296A (en) * | 2022-09-02 | 2022-11-08 | 国网福建省电力有限公司电力科学研究院 | Novel air insulation cable joint sleeve structure for ring main unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106128850A (en) | A kind of outdoor high-voltage pole or automatic circuit | |
| CN112185752B (en) | Solid-sealed polar pole | |
| MX2014006173A (en) | Automated grounding device with visual indication. | |
| US9431800B2 (en) | Gas-insulated electric device | |
| CN203205758U (en) | Solid-state insulation switch device and gas gap insulation structure thereof | |
| CN105185559A (en) | Medium and high voltage type combined electronic transformer | |
| CN104124640B (en) | A kind of solid insulation switch | |
| CN106469594B (en) | Bushing shell for transformer | |
| CN103594950B (en) | The pole moved end shielding construction of solid insulation switch | |
| CN205900431U (en) | Solid utmost point post or coincidence ware of sealing of outdoor high pressure | |
| CN209232663U (en) | Insulated switch on a kind of shield type column | |
| CN215342160U (en) | Novel dry-type sleeve for electric power system | |
| CN202434357U (en) | Novel circular glass sealing wiring terminal | |
| CN105261517B (en) | A kind of pole of PT cabinets | |
| CN211016890U (en) | One-time and two-time fusion outdoor solid-sealed polar pole | |
| CN204167022U (en) | A kind of high-voltage wall bushing | |
| CN103022928A (en) | Contact double-shielding structure | |
| CN104658811A (en) | Pole component of solid sealed terminal | |
| CN205159194U (en) | Solid utmost point post that seals of PT cabinet | |
| CN203983828U (en) | A kind of solid insulation switch | |
| CN208538788U (en) | A kind of integration enclosed type expulsion fuse | |
| CN204424151U (en) | A kind of pole parts of pole | |
| CN215732526U (en) | Separable connector based on arc extinguishing conducting rod | |
| CN204332808U (en) | Medium Voltage Switchgear pole | |
| CN205265138U (en) | Solid insulation looped netowrk cabinet is with shielding plug -in fuse |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161116 |