CN207251064U - The miniaturization ring main unit of tri-station isolating switch under a kind of adapted - Google Patents
The miniaturization ring main unit of tri-station isolating switch under a kind of adapted Download PDFInfo
- Publication number
- CN207251064U CN207251064U CN201721282399.2U CN201721282399U CN207251064U CN 207251064 U CN207251064 U CN 207251064U CN 201721282399 U CN201721282399 U CN 201721282399U CN 207251064 U CN207251064 U CN 207251064U
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- tri
- circuit breaker
- isolating switch
- vacuum circuit
- station isolating
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Abstract
The utility model discloses a kind of miniaturization ring main unit of tri-station isolating switch under adapted, vacuum circuit breaker, tri-station isolating switch, current transformer, arrester and main bus-bar including cabinet, in cabinet, the vacuum circuit breaker is installed on cabinet internal upper part and independently into unit module, vacuum circuit breaker includes solid-sealing vacuum arc-chutes, insulated tension pole and vacuum circuit breaker operating mechanism, vacuum circuit breaker operating mechanism links with insulated tension pole, and insulated tension pole upper end is connected with the moved end of solid-sealing vacuum arc-chutes；The static side of solid-sealing vacuum arc-chutes is connected with main bus-bar, and the moved end of solid-sealing vacuum arc-chutes is connected through being flexible coupling with the lower wire end of vacuum circuit breaker；The lower wire end of tri-station isolating switch and vacuum circuit breaker connects；The operating mechanism of tri-station isolating switch is mutually interlocked with the operating mechanism of vacuum circuit breaker；Beneficial effect：Occupied space is reduced, production cost is reduced, there is good environmental-protecting performance.
Description
Technical field
It the utility model is related to a kind of electric device, the miniaturization ring of tri-station isolating switch under more particularly to a kind of adapted
Net cabinet.
Background technology
National grid was carrying out the work of power distribution network Standardization Construction in recent years, accelerated to promote " unified planning, unified mark
It is accurate, safe and reliable, sturdy and durable " distribution network construction is that State Grid Corporation of China deeply carries out center, State Council on new one
Take turns upgrading of rural power grids upgrading and town power distribution network construction retrofit policy, the important measure of service economy social development, standardized designs
Equipment exchange is advantageously implemented, lifting means O＆M convenience is significant for Standardization Construction work and distribution network construction.
In State Grid Corporation of China's distribution network engineering modular design 10kV distribution station fascicles of issue in 2016,10kV looped networks
Room modular design, incoming line cabinet use loading switch cabinet, and feeder cabinet uses breaker cabinet or loading switch cabinet, under breaker cabinet use
Tri-station isolating switch scheme.
South electric network new edition safety operating regulation, which is distinctly claimed between grounding switch and repair apparatus, should not be connected with breaker
Or the structure such as fuse, upper isolation is unsatisfactory for safety requirements.Meet that safety code, operation operation require, select it is unified under every
From mode.
Some domestic companies released several miniaturization ring main units in recent years, and it is exhausted such as to minimize air insulation ring main unit, solid
Edge ring main unit and environmentally friendly gas-insulated ring network cabinet, though scheme of the breaker cabinet of a portion product meet state's net allusion quotation set and
The lower tri-station isolating switch requirement of southern net safety, but in the Uniswitch looped networks to existing and widely applied ABB AB
Cabinet（Including domestic XGN15A ring main units, using SF6 on-load switch top units）When distributor track website is transformed and extended, due to cabinet
Body side surface structure arrangement is completely inconsistent, and particularly main bus-bar height and front and back position are completely inconsistent, if being gone with such product
Replace original Uniswitch ring main units（With XGN15A ring main units）Or extension is added, manufacturer need to make original product larger change
Cabinet can be spelled therewith, have impact on production efficiency, also increase production cost.
The content of the invention
Technical problem to be solved in the utility model is in view of the deficiencies of the prior art, there is provided three stations under a kind of adapted
The miniaturization ring main unit of disconnecting switch.
To achieve these goals, the measure that the utility model is taken：
The miniaturization ring main unit of tri-station isolating switch under a kind of adapted, including cabinet, the vacuum in cabinet are broken
Road device, tri-station isolating switch, current transformer, arrester and main bus-bar, on the vacuum circuit breaker is installed in cabinet
Portion simultaneously independently includes solid-sealing vacuum arc-chutes, insulated tension pole and vacuum circuit breaker operating machine into unit module, vacuum circuit breaker
Structure, vacuum circuit breaker operating mechanism link with insulated tension pole, and insulated tension pole upper end is connected with the moved end of solid-sealing vacuum arc-chutes；
The static side of solid-sealing vacuum arc-chutes is connected with main bus-bar, and the moved ends of solid-sealing vacuum arc-chutes is through being flexible coupling and vacuum circuit breaker
Lower wire end be connected；The lower wire end of tri-station isolating switch and vacuum circuit breaker connects；The operation of tri-station isolating switch
Mechanism and the operating mechanism of vacuum circuit breaker mutually interlock, the lower part of current transformer and arrester in cabinet；
The tri-station isolating switch includes isolation static contact, contact knife, rotating insulated big axis, grounding static contact, through walls
Casing and isolator operating mechanism, rotating insulated big axis are connected with isolator operating mechanism, contact knife one end and wall bushing
Conductor upper end sliding contact connection, the contact knife other end is corresponding with isolation static contact and grounding static contact respectively, isolates stationary contact
Head is connected with the lower wire end of tri-station isolating switch；
The installed in front of the cabinet has cable chamber door.
The beneficial effects of the utility model：Practicality, easy for installation, structure is novel, and existing distributor track website is changed
Make or extend, be also applicable in newly-built distributor track website；Occupied space is reduced, production cost is reduced, there is the good feature of environmental protection
Energy.
Brief description of the drawings
Fig. 1 is the inside front plan structure diagram of the utility model.
Fig. 2 is the inner side planar structure schematic diagram of the utility model.
Fig. 3 is the vacuum circuit breaker constructions schematic diagram of the utility model.
Fig. 4 is the tri-station isolating switch structure diagram of the utility model.
Embodiment
The miniaturization ring main unit of tri-station isolating switch under a kind of adapted, including cabinet 1, the vacuum in cabinet 1
Breaker 2, tri-station isolating switch 3, current transformer 4, arrester 5 and main bus-bar 6, the vacuum circuit breaker 2 are installed on
1 internal upper part of cabinet simultaneously independently includes solid-sealing vacuum arc-chutes 7, insulated tension pole 8 and vacuum into unit module, vacuum circuit breaker 2
Circuit breaker operation mechanism 9, vacuum circuit breaker operating mechanism 9 link with insulated tension pole 8,8 upper end of insulated tension pole and solid-sealing vacuum
The moved end of arc-chutes 7 is connected；The static side of solid-sealing vacuum arc-chutes 7 is connected with main bus-bar 6, and solid-sealing vacuum arc-chutes 7 move
Lower wire end of the end through being flexible coupling with vacuum circuit breaker 2 is connected；The lower wire end of tri-station isolating switch 3 and vacuum circuit breaker 2
Connection；The operating mechanism of tri-station isolating switch 3 and the operating mechanism of vacuum circuit breaker 2 mutually interlock, current transformer 4 and lightning-arrest
Device 5 is installed on the lower part in cabinet 1.
The tri-station isolating switch 3 includes isolation static contact 10, contact knife 11, rotating insulated big axis 12, ground connection stationary contact
First 13, wall bushing 14 and isolator operating mechanism 15, rotating insulated big axis 12 are connected with isolator operating mechanism 15, touch
11 one end of knife is connected with the conductor upper end sliding contact of wall bushing 14, and 11 other end of contact knife is respectively with isolating static contact 10 and connecing
Ground static contact 13 is corresponding, and isolation static contact 10 is connected with the lower wire end of tri-station isolating switch 3.
The installed in front of the cabinet 1 has cable chamber door 16, in order to overhaul.
Isolator operating mechanism 15 is arranged on 1 front medium position of cabinet, and isolator operating mechanism 15 breaks with vacuum
Device operating mechanism 9 phase in road interlocks.
During work, when tri-station isolating switch 3 is in closing position, vacuum circuit breaker 2 closes a floodgate, and major loop is connected, at this time
Since the interlocking of isolator operating mechanism 15 and vacuum circuit breaker operating mechanism 9 acts on, prevent tri-station isolating switch 3 from beating
Open, only after 2 separating brake of vacuum circuit breaker, tri-station isolating switch 3 could be opened, and be in isolated location 17, open extremely
Before earthing position 18, it is necessary to which, to line side electrical verification, electrical verification, which finishes, confirms line side out of power, and operable tri-station isolating switch 3 is beaten
Open conductor and contact knife 11 and the ground connection for the wall bushing 14 for passing through tri-station isolating switch 3 to earthing position 18, line side cable
Static contact 13 is engaged, and is grounded and is overhauled.
In the above-mentioned course of work, underlying tri-station isolating switch 3 is integrated by disconnecting switch and earthing switch function,
Product structure is simplified, improves security reliability, realizes that ring main unit minimizes, not only environmental protection but also saving urban land resource.
Claims (3)
1. the miniaturization ring main unit of tri-station isolating switch under a kind of adapted, including cabinet（1）, installed in cabinet（1）Interior is true
Empty breaker（2）, tri-station isolating switch（3）, current transformer（4）, arrester（5）And main bus-bar（6）, it is characterised in that：
The vacuum circuit breaker（2）It is installed on cabinet（1）Internal upper part and independently into unit module, vacuum circuit breaker（2）Including sealing
Formula vacuum interrupter（7）, insulated tension pole（8）And vacuum circuit breaker operating mechanism（9）, vacuum circuit breaker operating mechanism（9）With it is exhausted
Edge pull rod（8）Linkage, insulated tension pole（8）Upper end and solid-sealing vacuum arc-chutes（7）Moved end be connected；Solid-sealing vacuum arc-chutes
（7）Static side and main bus-bar（6）Connection, solid-sealing vacuum arc-chutes（7）Moved end through being flexible coupling and vacuum circuit breaker（2）Under
Leading-out terminal is connected；Tri-station isolating switch（3）With vacuum circuit breaker（2）Lower wire end connection；Tri-station isolating switch（3）'s
Operating mechanism and vacuum circuit breaker（2）Operating mechanism mutually interlock, current transformer（4）And arrester（5）Installed in cabinet（1）
Interior lower part.
2. the miniaturization ring main unit of tri-station isolating switch under a kind of adapted according to claim 1, it is characterised in that：Institute
The tri-station isolating switch stated（3）Including isolating static contact（10）, contact knife（11）, rotating insulated big axis（12）, grounding static contact
（13）, wall bushing（14）And isolator operating mechanism（15）, rotating insulated big axis（12）With isolator operating mechanism
（15）It is connected, contact knife（11）One end and wall bushing（14）Conductor upper end sliding contact connection, contact knife（11）The other end is distinguished
With isolating static contact（10）And grounding static contact（13）It is corresponding, isolate static contact（10）With tri-station isolating switch（3）Under
Leading-out terminal connects.
3. the miniaturization ring main unit of tri-station isolating switch, its feature exist under a kind of adapted according to claim 1 or 2
In：The cabinet（1）Installed in front have cable chamber door（16）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721282399.2U CN207251064U (en) | 2017-09-30 | 2017-09-30 | The miniaturization ring main unit of tri-station isolating switch under a kind of adapted |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721282399.2U CN207251064U (en) | 2017-09-30 | 2017-09-30 | The miniaturization ring main unit of tri-station isolating switch under a kind of adapted |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207251064U true CN207251064U (en) | 2018-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721282399.2U Active CN207251064U (en) | 2017-09-30 | 2017-09-30 | The miniaturization ring main unit of tri-station isolating switch under a kind of adapted |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207251064U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108695759A (en) * | 2018-08-08 | 2018-10-23 | 北京科锐配电自动化股份有限公司 | A kind of gas-insulated ring network cabinet with quick acting switching-off function |
| CN108767729A (en) * | 2018-08-08 | 2018-11-06 | 湖北省电力装备有限公司 | A kind of small-sized side-mounted looped network breaker cabinet |
| CN109768490A (en) * | 2018-12-14 | 2019-05-17 | 北京双杰电气股份有限公司 | Normal pressure environment protection air switch cabinet |
| CN110768153A (en) * | 2019-11-07 | 2020-02-07 | 广东北江开关厂有限公司 | Lower isolation belt ground knife fixed high-voltage ring main unit structure |
-
2017
- 2017-09-30 CN CN201721282399.2U patent/CN207251064U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108695759A (en) * | 2018-08-08 | 2018-10-23 | 北京科锐配电自动化股份有限公司 | A kind of gas-insulated ring network cabinet with quick acting switching-off function |
| CN108767729A (en) * | 2018-08-08 | 2018-11-06 | 湖北省电力装备有限公司 | A kind of small-sized side-mounted looped network breaker cabinet |
| CN109768490A (en) * | 2018-12-14 | 2019-05-17 | 北京双杰电气股份有限公司 | Normal pressure environment protection air switch cabinet |
| CN110768153A (en) * | 2019-11-07 | 2020-02-07 | 广东北江开关厂有限公司 | Lower isolation belt ground knife fixed high-voltage ring main unit structure |
| CN110768153B (en) * | 2019-11-07 | 2024-06-11 | 清远市新能电力工程有限公司 | Fixed high-voltage ring main unit structure of lower median ground sword |
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