CN109148204A - A kind of gas-insulating and fully-enclosed combined electrical apparatus and its three-station isolating grounding switch - Google Patents
A kind of gas-insulating and fully-enclosed combined electrical apparatus and its three-station isolating grounding switch Download PDFInfo
- Publication number
- CN109148204A CN109148204A CN201710501784.XA CN201710501784A CN109148204A CN 109148204 A CN109148204 A CN 109148204A CN 201710501784 A CN201710501784 A CN 201710501784A CN 109148204 A CN109148204 A CN 109148204A
- Authority
- CN
- China
- Prior art keywords
- isolation
- static contact
- phase
- collateral support
- shell
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/023—Base and stationary contacts mounted thereon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/026—Movable parts and contacts mounted thereon
Abstract
The present invention relates to a kind of gas-insulating and fully-enclosed combined electrical apparatus and its three-station isolating grounding switch, three-station isolating grounding switch includes shell, isolation static contact, intermediate moving contact and grounding static contact are in axial direction disposed in shell, shell includes straight barrel and the insulating basin for being set to straight barrel both ends, isolation static contact is set on the insulating basin of one end by quiet collateral support conductor, intermediate moving contact is set on the insulating basin of the other end by moving collateral support conductor, and grounding static contact insulation set is on the barrel of straight barrel.The shell it is relatively simple for structure, shell is easy to process, does not need in addition to open up port, improve the intensity of shell, and such arrangement makes integral installation more convenient, and be conducive to three-station isolating grounding switch integral miniaturization design.
Description
Technical field
The invention belongs to high voltage substation fields, and in particular to a kind of gas-insulating and fully-enclosed combined electrical apparatus and thirdly station
Isolation earthing switch.
Background technique
The gas-insulating and fully-enclosed combined electrical apparatus of GIS() China is introduced since the eighties in last century, nowadays in high-voltage transforming
The field of station is used widely.With the raising that designer recognizes electric system, to stable power grid environment and maintenance
More stringent requirements are proposed for convenience, such as increases isolation fracture and earthing or grounding means, straight line before arrester and voltage transformer
Type three-station isolating grounding switch is come into being.The relatively low 110kV GIS of voltage class is mostly used in city and underground power transformation
In standing, arrangement space is extremely limited, and this requires the arrangements of GIS entirety to want extremely compact, or even develops into the shape of rebuilding
Formula.It how is set not only to have met electrical performance demands but also the space that practices every conceivable frugality, miniaturization is simplified and cost effective, becomes each
The important topic of a GIS producer exploitation design.
The structure of current three-station isolating grounding switch, the China if Authorization Notice No. is 203966948 U of CN are practical
A kind of novel disclosed three-station isolating grounding switch, including three isolation earthing switch are single-phase, and each isolation earthing switch is single-phase
Include the barrel-type casing that extends in left-right direction of axis and be set to the grounding static contact of enclosure interior, intermediate moving contact and
Static contact is isolated, isolation static contact is set on the insulating basin of shell one end, and grounding static contact is set to the shell other end
On shell flange, another disc insulator is arranged radially on the barrel of shell, intermediate moving contact is set to benzvalene form insulation
On son.The Chinese invention patent application that application publication number is CN 106611675A discloses a kind of isolation of three station of compact and connects
Ground switch, is three-phase combined type structure, including shell, the left and right ends of shell are respectively arranged with insulating basin, the lower end of shell
It is provided with insulating basin, moving contact is set on the insulating basin of lower end by dynamic side conductor, and isolation static contact is led by quiet side
Body is set on the insulating basin of left and right ends.The cartridge openings of above three-station isolating grounding switch are more, lead to structure
Complexity, casing rigidity reduce, and connection insulating basin is required at cartridge openings, cause shell processing inconvenient, the isolation of three stations
Earthing switch overall package is inconvenient.
Summary of the invention
The purpose of the present invention is to provide a kind of easy to process and installation three-station isolating grounding switch；Meanwhile this hair
Bright purpose, which also resides in, provides a kind of gas-insulating and fully-enclosed combined electrical apparatus using the three-station isolating grounding switch.
To achieve the above object, a kind of technical solution of three-station isolating grounding switch of the invention is: a kind of three stations
It is quiet to be in axial direction disposed with isolation static contact, intermediate moving contact and ground connection in shell for isolation earthing switch, including shell
Contact, the shell include straight barrel and the insulating basin for being set to straight barrel both ends, and isolation static contact is led by quiet collateral support
Body is set on the insulating basin of one end, and intermediate moving contact is set on the insulating basin of the other end by moving collateral support conductor,
Grounding static contact insulation set is on the barrel of straight barrel.
Observation window corresponding with isolation static contact is provided on the barrel of the straight barrel.
The three-station isolating grounding switch is three-phase combined type structure, which includes three and keep apart
Close single-phase, single-phase each isolation earthing switch includes isolation static contact, intermediate moving contact and grounding static contact, and each isolation ground connection is opened
It closes single-phase isolation static contact parallel interval to be set on quiet collateral support conductor, the single-phase intermediate moving contact of each isolation earthing switch
Parallel interval, which is set to, to be moved on collateral support conductor.
It on the quiet collateral support conductor and moves on collateral support conductor including three branch conductors, on quiet collateral support conductor
Branch conductors are oppositely arranged two-by-two with the branch conductors moved on collateral support conductor, the single-phase isolation static contact of each isolation earthing switch
It is correspondingly arranged in the branch conductors being oppositely arranged two-by-two with intermediate moving contact.
The outside of the shell is provided with operating mechanism, operating mechanism and the single-phase intermediate moving contact of each isolation earthing switch
Between be provided with three-phase ganged bar, on three-phase ganged bar setting there are three gear, be provided on each intermediate moving contact for it is right
The rack gear for answering gear to engage.
A kind of gas-insulating and fully-enclosed combined electrical apparatus of the invention is that technical solution is: a kind of gas-insulating and fully-enclosed group
Close electric appliance, including three-station isolating grounding switch, three-station isolating grounding switch includes shell, in shell in axial direction successively
Isolation static contact, intermediate moving contact and grounding static contact, the shell is provided with to include straight barrel and be set to straight barrel both ends
Insulating basin, isolation static contact be set on the insulating basin of one end by quiet collateral support conductor, intermediate moving contact pass through moves
Collateral support conductor is set on the insulating basin of the other end, and grounding static contact insulation set is on the barrel of straight barrel.
Observation window corresponding with isolation static contact is provided on the barrel of the straight barrel.
The three-station isolating grounding switch is three-phase combined type structure, which includes three and keep apart
Close single-phase, single-phase each isolation earthing switch includes isolation static contact, intermediate moving contact and grounding static contact, and each isolation ground connection is opened
It closes single-phase isolation static contact parallel interval to be set on quiet collateral support conductor, the single-phase intermediate moving contact of each isolation earthing switch
Parallel interval, which is set to, to be moved on collateral support conductor.
It on the quiet collateral support conductor and moves on collateral support conductor including three branch conductors, on quiet collateral support conductor
Branch conductors are oppositely arranged two-by-two with the branch conductors moved on collateral support conductor, the single-phase isolation static contact of each isolation earthing switch
It is correspondingly arranged in the branch conductors being oppositely arranged two-by-two with intermediate moving contact.
The outside of the shell is provided with operating mechanism, operating mechanism and the single-phase intermediate moving contact of each isolation earthing switch
Between be provided with three-phase ganged bar, on three-phase ganged bar setting there are three gear, be provided on each intermediate moving contact for it is right
The rack gear for answering gear to engage.
The beneficial effects of the present invention are: shell includes straight barrel, isolation static contact and intermediate moving contact are respectively arranged at directly
On the insulating basin at cylinder both ends, grounding static contact is set on the barrel of straight barrel, shell it is relatively simple for structure, shell adds
Work is convenient, does not need in addition to open up port, improves the intensity of shell, and such arrangement compares integral installation
It is convenient, and be conducive to the integral miniaturization design of three-station isolating grounding switch.
Further, it is provided with observation window on the barrel of straight barrel, can checks the installation condition of internal insulation static contact,
The opening and closing state of intermediate moving contact and isolation both static contact detect its whether divide-shut brake in place.
Detailed description of the invention
Fig. 1 is a kind of overall structure diagram of the embodiment one of three-station isolating grounding switch of the invention；
The right view of Fig. 2 bitmap 1；
Fig. 3 is a kind of schematic diagram of internal structure of three-station isolating grounding switch of the invention；
Fig. 4 is cross-sectional view of the Fig. 3 at A-A；
Fig. 5 is structural schematic diagram when three-station isolating grounding switch is on；
Fig. 6 is structural schematic diagram when three-station isolating grounding switch is in isolated bit；
Fig. 7 is structural schematic diagram when three-station isolating grounding switch is in ground connection position.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
A kind of embodiment one of three-station isolating grounding switch of the invention, as shown in Figures 1 to 7, including shell, shell
Including straight barrel 1 and the first insulating basin 2 and the second insulating basin 3 that are set to 1 both ends of straight barrel, three station isolation ground connection
Switch is three-phase combined type structure, and three-station isolating grounding switch includes that three isolation earthing switch being set in shell are single-phase,
Single-phase each isolation earthing switch includes the isolation static contact 7 set gradually along the axis direction of straight barrel 1, intermediate moving contact 6
With grounding static contact 8.The both ends of straight barrel 1 are welded with connecting flange, for installing corresponding insulating basin, the two of straight barrel 1
End can be connected with GIS bus, can be not only used for playing isolated port in main bus-bar, and can be used for arrester and electricity
The installation for pressing mutual inductor, reaches the requirement of simplified structure, preferred arrangement.
It is provided with quiet collateral support conductor 12 on first insulating basin 2 of 1 one end of straight barrel, the second of 1 other end of straight barrel
It is provided on insulating basin 3 and moves collateral support conductor 13, quiet collateral support conductor 12 includes three branches with collateral support conductor 13 is moved
Conductor (14,15), it is quiet it is collateral support conductor 12 on branch conductors 14 with move it is collateral support conductor 13 on 15 liang of two-phases of branch conductors
To setting, the single-phase isolation static contact 7 of each isolation earthing switch and intermediate moving contact 6 are correspondingly arranged in point being oppositely arranged two-by-two
On branch conductor, intermediate moving contact 6 is horizontal to be slided and is conductively connected on the respective branch conductor 15 for moving collateral support conductor 13.Straight tube
Body 1 is welded using the aluminium alloy plate of 10mm thickness, and observation window 5 corresponding with isolation static contact 7 is provided on upper side tube-wall, is seen
Examine the installation condition that window 5 is checked for internal insulation static contact 7, the division of 7 the two of intermediate moving contact 6 and isolation static contact
Lock state-detection its whether divide-shut brake in place, can effectively find the problem in advance, equipment is avoided to break down.Grounding static contact
8 are set on the barrel of straight barrel 1 by insulation board 10, make grounding static contact 8 and shell insulation set, and grounding static contact 8 has
There is the leading-out terminal 16 convenient for measuring device connection for stretching out shell, in order to the measurement etc. of major loop resistance.When equipment is in
When operating status, it is connected with separation panel 11 on leading-out terminal 16 and is grounded.
Hull outside is provided with operating mechanism 4, operating mechanism 4 and the single-phase intermediate moving contact 6 of each isolation earthing switch it
Between be provided with the three-phase ganged bar 9 of insulation, setting is arranged useful there are three gear on each intermediate moving contact 6 on three-phase ganged bar 9
In the rack gear engaged with gear.It ensure that the single-phase intermediate moving contact 6 of three isolation earthing switch links, it is ensured that three centres
The action consistency of moving contact 6.The isolation instruction device and use for being used to indicate isolation static contact working condition are provided on shell
In instruction grounding static contact working condition ground connection instruction device, when intermediate moving contact 6 with i.e. three works when static contact 7 contacts are isolated
When position isolation earthing switch is on, isolation instruction device is located at " ON " state, when intermediate 6 both ends of moving contact be isolated it is quiet
When i.e. three-station isolating grounding switch is located at isolated bit when contact 7 and grounding static contact 8 do not contact, isolation instruction device is located at
" OFF " state connects when intermediate moving contact 6 is contacted with grounding static contact 8, i.e. three-station isolating grounding switch is located at ground connection position
Ground instruction device is located at " ON " state.
A kind of embodiment two of three-station isolating grounding switch of the invention, the difference with embodiment one is, is not provided with
Observation window.
A kind of embodiment three of three-station isolating grounding switch of the invention, the difference with embodiment one is, in shell
It is single-phase that one three-station isolating grounding switch is only set.
Claims (10)
1. a kind of three-station isolating grounding switch, including shell, be in axial direction disposed in shell isolation static contact, in
Between moving contact and grounding static contact, it is characterised in that: the shell includes straight barrel and the insulation basin for being set to straight barrel both ends
Son, isolation static contact are set on the insulating basin of one end by quiet collateral support conductor, and intermediate moving contact is led by moving collateral support
Body is set on the insulating basin of the other end, and grounding static contact insulation set is on the barrel of straight barrel.
2. three-station isolating grounding switch according to claim 1, it is characterised in that: be arranged on the barrel of the straight barrel
There is observation window corresponding with isolation static contact.
3. three-station isolating grounding switch according to claim 1, it is characterised in that: the three-station isolating grounding switch is
Three-phase combined type structure, the three-station isolating grounding switch include that three disconnecting switch are single-phase, and each isolation earthing switch is single-phase to be wrapped
Isolation static contact, intermediate moving contact and grounding static contact, the single-phase isolation static contact parallel interval of each isolation earthing switch is included to set
It is placed on quiet collateral support conductor, the single-phase intermediate moving contact parallel interval of each isolation earthing switch, which is set to, moves collateral support conductor
On.
4. three-station isolating grounding switch according to claim 3, it is characterised in that: on the quiet collateral support conductor and dynamic
On collateral support conductor include three branch conductors, it is quiet it is collateral support conductor on branch conductors with move it is collateral support conductor on branch
Conductor is oppositely arranged two-by-two, and the single-phase isolation static contact of each isolation earthing switch and intermediate moving contact are correspondingly arranged in two-by-two relatively
In the branch conductors of setting.
5. three-station isolating grounding switch according to claim 3, it is characterised in that: the outside of the shell is provided with behaviour
Motivation structure is provided with three-phase ganged bar, three-phase ganged between operating mechanism and the single-phase intermediate moving contact of each isolation earthing switch
Setting is provided with the rack gear for engaging with corresponding gear there are three gear on bar on each intermediate moving contact.
6. a kind of gas-insulating and fully-enclosed combined electrical apparatus, including three-station isolating grounding switch, three-station isolating grounding switch packet
Shell is included, isolation static contact, intermediate moving contact and grounding static contact, feature are in axial direction disposed in shell and is existed
In: the shell includes straight barrel and the insulating basin for being set to straight barrel both ends, and isolation static contact passes through quiet collateral support conductor
It is set on the insulating basin of one end, intermediate moving contact is set on the insulating basin of the other end by moving collateral support conductor, is connect
Ground static contact and insulation is set on the barrel of straight barrel.
7. gas-insulating and fully-enclosed combined electrical apparatus according to claim 6, it is characterised in that: on the barrel of the straight barrel
It is provided with observation window corresponding with isolation static contact.
8. gas-insulating and fully-enclosed combined electrical apparatus according to claim 6, it is characterised in that: three station isolation ground connection is opened
Closing is three-phase combined type structure, which includes that three disconnecting switch are single-phase, and each isolation earthing switch is single-phase
It include isolation static contact, intermediate moving contact and grounding static contact, between the single-phase isolation static contact of each isolation earthing switch is parallel
Every being set on quiet collateral support conductor, the single-phase intermediate moving contact parallel interval of each isolation earthing switch, which is set to, to be moved collateral support and leads
On body.
9. gas-insulating and fully-enclosed combined electrical apparatus according to claim 8, it is characterised in that: on the quiet collateral support conductor
Include three branch conductors with moving on collateral support conductor, branch conductors on quiet collateral support conductor and moves on collateral support conductor
Branch conductors are oppositely arranged two-by-two, and the single-phase isolation static contact of each isolation earthing switch and intermediate moving contact are correspondingly arranged in two-by-two
In the branch conductors being oppositely arranged.
10. gas-insulating and fully-enclosed combined electrical apparatus according to claim 8, it is characterised in that: the outside of the shell is set
It is equipped with operating mechanism, is provided with three-phase ganged bar between operating mechanism and the single-phase intermediate moving contact of each isolation earthing switch, three
Setting is provided with the rack gear for engaging with corresponding gear there are three gear in the lever that is connected on each intermediate moving contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710501784.XA CN109148204B (en) | 2017-06-27 | 2017-06-27 | Gas insulated totally-enclosed combined electrical apparatus and three-station isolation grounding switch thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710501784.XA CN109148204B (en) | 2017-06-27 | 2017-06-27 | Gas insulated totally-enclosed combined electrical apparatus and three-station isolation grounding switch thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109148204A true CN109148204A (en) | 2019-01-04 |
| CN109148204B CN109148204B (en) | 2022-06-21 |
Family
ID=64805139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710501784.XA Active CN109148204B (en) | 2017-06-27 | 2017-06-27 | Gas insulated totally-enclosed combined electrical apparatus and three-station isolation grounding switch thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109148204B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109509673A (en) * | 2019-01-10 | 2019-03-22 | 广东阿尔派电力科技股份有限公司 | Novel equal three station double-fracture disconnecting switch of angular displacements |
| CN112683508A (en) * | 2020-12-21 | 2021-04-20 | 江苏恒高电气制造有限公司 | Gas insulation transmission line contact life test device |
| CN113917300A (en) * | 2021-10-08 | 2022-01-11 | 江苏安靠智能输电工程科技股份有限公司 | Direct connection device of gas-insulated high-voltage switch and power transformer |
| CN117477417A (en) * | 2023-12-28 | 2024-01-30 | 沈阳华德海泰电器有限公司 | Environment-friendly gas-insulated closed combined electrical apparatus |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201084626Y (en) * | 2007-09-07 | 2008-07-09 | 西安电力机械制造公司 | An ultra-high pressure GIS-purpose isolation switch |
| CN201170993Y (en) * | 2008-02-20 | 2008-12-24 | 江苏省如高高压电器有限公司 | Tri-station insulation ground switch |
| WO2009060513A1 (en) * | 2007-11-06 | 2009-05-14 | Mitsubishi Electric Corporation | Switch |
| EP2091057A1 (en) * | 2008-02-15 | 2009-08-19 | Kabushiki Kaisha Toshiba | Gas-insulated switchgear and assembly method thereof |
| CN201369277Y (en) * | 2009-01-09 | 2009-12-23 | 河南平高电气股份有限公司 | Disconnecting-grounding switch |
| CN201829858U (en) * | 2010-11-01 | 2011-05-11 | 广西中电新源电气有限公司 | Gaseous insulated and enclosed type high-voltage isolating/grounding switch |
| CN102368445A (en) * | 2011-11-11 | 2012-03-07 | 北京北开电气股份有限公司 | Three-working-position isolation switch |
| CN202650946U (en) * | 2012-06-27 | 2013-01-02 | 厦门华电开关有限公司 | Compact grounding isolation three-station switch |
| CN103377849A (en) * | 2012-04-28 | 2013-10-30 | 西门子公司 | Three-phase common-box earthed switch |
| CN203503537U (en) * | 2013-10-28 | 2014-03-26 | 天安电气集团浙江电气有限公司 | Three-position isolation grounding switching device |
| CN203631395U (en) * | 2013-12-25 | 2014-06-04 | 川开电气股份有限公司 | High-speed grounding switch of high-voltage composite electric appliance |
| CN203850197U (en) * | 2014-04-02 | 2014-09-24 | 特变电工中发上海高压开关有限公司 | Triple-position isolation grounding switch |
| CN104810186A (en) * | 2014-11-18 | 2015-07-29 | 平高集团有限公司 | Moving contact unit and three-position switch with moving contact unit |
| CN106611675A (en) * | 2015-10-27 | 2017-05-03 | 上海思源高压开关有限公司 | Compact three-position isolated earthing switch |
-
2017
- 2017-06-27 CN CN201710501784.XA patent/CN109148204B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201084626Y (en) * | 2007-09-07 | 2008-07-09 | 西安电力机械制造公司 | An ultra-high pressure GIS-purpose isolation switch |
| WO2009060513A1 (en) * | 2007-11-06 | 2009-05-14 | Mitsubishi Electric Corporation | Switch |
| EP2091057A1 (en) * | 2008-02-15 | 2009-08-19 | Kabushiki Kaisha Toshiba | Gas-insulated switchgear and assembly method thereof |
| CN201170993Y (en) * | 2008-02-20 | 2008-12-24 | 江苏省如高高压电器有限公司 | Tri-station insulation ground switch |
| CN201369277Y (en) * | 2009-01-09 | 2009-12-23 | 河南平高电气股份有限公司 | Disconnecting-grounding switch |
| CN201829858U (en) * | 2010-11-01 | 2011-05-11 | 广西中电新源电气有限公司 | Gaseous insulated and enclosed type high-voltage isolating/grounding switch |
| CN102368445A (en) * | 2011-11-11 | 2012-03-07 | 北京北开电气股份有限公司 | Three-working-position isolation switch |
| CN103377849A (en) * | 2012-04-28 | 2013-10-30 | 西门子公司 | Three-phase common-box earthed switch |
| CN202650946U (en) * | 2012-06-27 | 2013-01-02 | 厦门华电开关有限公司 | Compact grounding isolation three-station switch |
| CN203503537U (en) * | 2013-10-28 | 2014-03-26 | 天安电气集团浙江电气有限公司 | Three-position isolation grounding switching device |
| CN203631395U (en) * | 2013-12-25 | 2014-06-04 | 川开电气股份有限公司 | High-speed grounding switch of high-voltage composite electric appliance |
| CN203850197U (en) * | 2014-04-02 | 2014-09-24 | 特变电工中发上海高压开关有限公司 | Triple-position isolation grounding switch |
| CN104810186A (en) * | 2014-11-18 | 2015-07-29 | 平高集团有限公司 | Moving contact unit and three-position switch with moving contact unit |
| CN106611675A (en) * | 2015-10-27 | 2017-05-03 | 上海思源高压开关有限公司 | Compact three-position isolated earthing switch |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109509673A (en) * | 2019-01-10 | 2019-03-22 | 广东阿尔派电力科技股份有限公司 | Novel equal three station double-fracture disconnecting switch of angular displacements |
| CN109509673B (en) * | 2019-01-10 | 2023-09-12 | 广东阿尔派电力科技股份有限公司 | Novel equiangular displacement three-station double-break isolating switch |
| CN112683508A (en) * | 2020-12-21 | 2021-04-20 | 江苏恒高电气制造有限公司 | Gas insulation transmission line contact life test device |
| CN113917300A (en) * | 2021-10-08 | 2022-01-11 | 江苏安靠智能输电工程科技股份有限公司 | Direct connection device of gas-insulated high-voltage switch and power transformer |
| CN117477417A (en) * | 2023-12-28 | 2024-01-30 | 沈阳华德海泰电器有限公司 | Environment-friendly gas-insulated closed combined electrical apparatus |
| CN117477417B (en) * | 2023-12-28 | 2024-04-12 | 沈阳华德海泰电器有限公司 | Environment-friendly gas-insulated closed combined electrical apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109148204B (en) | 2022-06-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109148204A (en) | A kind of gas-insulating and fully-enclosed combined electrical apparatus and its three-station isolating grounding switch | |
| EP3823115B1 (en) | Gas-insulated metal enclosed neutral point complete-set device | |
| CN106159787A (en) | A kind of closed gas insulated switch cabinet | |
| CN203218583U (en) | Elbow-type cable plug-pull head | |
| CN203491176U (en) | Gas-insulated and metal-enclosed switch equipment | |
| CN107732754B (en) | Aerify cabinet with generating line grafting function | |
| CN100563070C (en) | Gas isolated combination switch device | |
| KR101097616B1 (en) | Multipurpose case module of gas insulated switchgear | |
| CN206225948U (en) | A kind of rigid gas insulated power lines branch unit | |
| CN210926854U (en) | Dry-type sleeve connecting device and GIS equipment | |
| CN201887367U (en) | Handcart of AC high-voltage potential transformer | |
| CN205141683U (en) | Shunt capacitance organizes integrated equipment | |
| CN209641511U (en) | A kind of current transformer preventing suspended voltage | |
| CN203406512U (en) | Breaker chamber with bus isolating function and bus measuring function | |
| CN217427474U (en) | Gas insulation switch cabinet | |
| CN205657374U (en) | Solid insulation boundary switch cabinet | |
| CN210111457U (en) | Structure for mounting sleeve on high-voltage switch | |
| CN215897148U (en) | Large-current gas tank of gas-filled cabinet | |
| CN215071321U (en) | Environment-friendly gas insulated switchgear | |
| CN210199260U (en) | Novel time characteristic testing device | |
| CN212412594U (en) | Miniaturized prefabricated substation with arcing channel cable chamber | |
| CN114217181B (en) | GIS cable sleeve test window | |
| CN203596424U (en) | Cable terminal wiring apparatus | |
| CN220401259U (en) | Environment-friendly gas switch cabinet used for double-cable incoming line and provided with voltage transformer | |
| CN219892426U (en) | Compact type in-line double-layer bus connector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |