CN207559418U - A kind of gas-insulated ring network cabinet metal enclosed switchgear - Google Patents
A kind of gas-insulated ring network cabinet metal enclosed switchgear Download PDFInfo
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- CN207559418U CN207559418U CN201721337210.5U CN201721337210U CN207559418U CN 207559418 U CN207559418 U CN 207559418U CN 201721337210 U CN201721337210 U CN 201721337210U CN 207559418 U CN207559418 U CN 207559418U
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- electrically connected
- circuit breaker
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- sealed
- ring network
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Abstract
The utility model belongs to electric energy device field, and in particular to a kind of gas-insulated ring network cabinet metal enclosed switchgear including cabinet, is equipped with SF6 sealed chambers, control room, current transformer room in the cabinet；The side of the SF6 sealed chambers is equipped with circuit breaker operation mechanism, disconnecting switch earthing switch operating mechanism；It is equipped in the SF6 sealed chambers and expands bus casing, bus tie, vacuum circuit breaker, three-stations load switch unit, sealed fuse storehouse, insulator sensor；The expansion bus casing is electrically connected with bus tie, the bus tie is electrically connected with vacuum circuit breaker, the vacuum circuit breaker is electrically connected with three-stations load switch unit, the three-stations load switch unit is electrically connected with sealed fuse storehouse, and the sealed fuse storehouse is electrically connected with insulator sensor.Technical solutions of the utility model have it is simple in structure, small, price is low, can improve power supply parameter and performance and Supply Security.
Description
Technical field
The utility model belongs to electric energy device field, and in particular to a kind of gas-insulated ring network cabinet metal enclosed switch is set
It is standby.
Background technology
In order to improve power supply reliability, user is allow to obtain power supply from both direction, power supply network is usually connected into cyclization
Shape.This power supply mode is referred to as ring network power supply, which, which matches, is known as ring main unit in switchgear general custom.Ring main unit is
One group of high-tension switch gear is mounted in steel sheet metal cabinet or made the electrical equipment of assembled compartment ring network power supplying units,
Core use on-load switch and fuse, have it is simple in structure, small, price is low, can improve power supply parameter and performance
And the advantages that power supply safety.
Ring network power distribution unit is generally made of 3 intervals, including two inlet-outlet line intervals and a transformer bay every.Disengaging
Line interval is mainly used for timely isolation to faulty line and restores normal power supply by adjusting power supply direction；Transformer
Interval then quickly cuts off inside transformer short trouble by combined electrical apparatus.
The chief component of ring main unit is on-load switch, is generally named with the type of on-load switch.It is divided with this,
Develop 4 stages mainly undergone, be summarised as air-generating, air pressing type, vacuum ring main unit and SF6 ring main units.
Late 1980s, the beginning of the nineties, air-generating ring main unit are widely used in the whole nation, but its own
Feature determines it when cut-offfing load, and arc light is exposed, easily causes safety accident；Electric life is not high, Maintenance and Repair workload
The shortcomings of big so that air-generating ring main unit has exited the arena of history soon.
Similarly, for air pressing type ring main unit there is also arc light when cut-offfing load is exposed, operating mechanism limitation is larger, and machinery
The shortcomings of service life is not high, poor reliability.Thus also fail to obtain extensive promotion and application.
Vacuum ring main unit uses vacuum load switch, and arc-chutes good insulation preformance, clearance between open contacts are small, it is desirable that operating mechanism
The energy of offer is also small；Meanwhile open away from small, arc voltage is low, and arc energy is small, and contact surface scaling loss is slight when cut-offfing, meanwhile,
Arc-chutes working condition is unrelated with the external world, will not generate pollution, electrically and mechanically long lifespan.But the mechanical machine of vacuum ring main unit
Structure adapted is complicated, and stringent to material requirements, production difficulty is larger, and production prices are higher, simultaneously because vacuum interrupter has very
The strong ability for cut-offfing high-frequency current, in cut-offfing for current over-zero moment, can generate Multiple subcutaneous insulin infusion.Therefore, vacuum is opened
It closes often as the equipment that circuit is cut-off in ring main unit, main application is in the control and protection for motor.
It is colourless, tasteless, nontoxic as the SF6 of arc-extinguishing medium of new generation, it will not burn, stable chemical performance, blow-out energy
The features such as power is strong, good insulation preformance makes to be widely used in its breaker in each voltage class.
As one kind in C-GIS Medium Voltage Switchgears, the totally-enclosed property of SF6 ring main units, miniaturization, non-maintaining, high insulation
Type effectively limits the major accident that switchgear may occur in operation, becomes the master of ring main unit in one period from now on
Flow development trend.
Utility model content
The purpose of this utility model is to provide one kind have it is simple in structure, small, price is low, can improve power supply parameter
With performance and the gas-insulated ring network cabinet metal enclosed switchgear of power supply safety.
In order to achieve the above objectives, the technical solution of the utility model is：A kind of gas-insulated ring network cabinet metal enclosed switch
Equipment including cabinet, is equipped with SF6 sealed chambers, control room, current transformer room in the cabinet；The SF6 sealed chambers
Side is equipped with circuit breaker operation mechanism, disconnecting switch earthing switch operating mechanism；It is equipped in the SF6 sealed chambers and expands busbar
Casing, bus tie, vacuum circuit breaker, three-stations load switch unit, sealed fuse storehouse, insulator sensor；Institute
The expansion bus casing stated is electrically connected with bus tie, and the bus tie is electrically connected with vacuum circuit breaker, institute
The vacuum circuit breaker stated is electrically connected with three-stations load switch unit, and the three-stations load switch unit is melted with sealed
Disconnected device storehouse electrical connection, the sealed fuse storehouse is electrically connected with insulator sensor；The current transformer room
It is interior to be equipped with current transformer, cable clip, heater；The current transformer is sensed by band shielding type cable head and insulator
Device is electrically connected；The insulator sensor sealingly extends through the bottom of SF6 sealed chambers and by band shielding type cable head electricity
Gas connects；The circuit breaker operation mechanism sealingly extends through SF6 sealed chambers and is connect with vacuum circuit breaker, the disconnecting switch
Earthing switch operating mechanism sealingly extends through SF6 sealed chambers and is connect with three-stations load switch unit.
Expand bus casing, bus tie, vacuum circuit breaker, three-stations load switch unit, sealed fuse storehouse,
Insulator sensor shares gas chamber, reduces live cabinet splicing difficulty, is not related to live inflation.
Fuse frame, the fuse frame are equipped in sealed fuse storehouse described in technical solutions of the utility model
On be provided with fuse.When installation or replacement fuse, as long as Hatch Opening spanner is pulled, which to pull out fuse frame, can install or replace
Fuse.
The outside of circuit breaker operation mechanism described in technical solutions of the utility model is equipped with breaker operator door, described
The outside of disconnecting switch earthing switch operating mechanism is equipped with disconnector earthing switch and operates door.
Current transformer room described in technical solutions of the utility model is equipped with current transformer room door.
There are three three-stations load switch units described in technical solutions of the utility model, and operating position is to close a floodgate respectively
Position, isolated location, earthing position.Three-stations load switch simplifies mutual interlocking.
Disconnector earthing switch operation door described in technical solutions of the utility model is equipped with display.
Current transformer room door described in technical solutions of the utility model is equipped with Anti-explosive glass observation window and caution board.
Filled with the SF6 gases that air pressure is 1.4bar in SF6 sealed chambers described in technical solutions of the utility model.
There is good chemical stability and thermal stability, remarkable electrical insulating property and arc extinction performance during 1.4bar pressure.
Technical solutions of the utility model have it is simple in structure, small, price is low, power supply parameter and performance can be improved and
Supply Security, especially suitable for small to distribution facility place, the high underground of reliability requirement, plateau, coastal area etc. are natural
The place of environment and condition rather harsh.It is currently mainly used tight in lands used such as industrial and mining enterprises, substation, subway, light railways
, the restricted substation of narrow space and switching station.
Description of the drawings
Fig. 1 is a kind of structure diagram of gas-insulated ring network cabinet metal enclosed switchgear of the utility model
Fig. 2 is a kind of external structure schematic diagram of gas-insulated ring network cabinet metal enclosed switchgear of the utility model
Specific embodiment
Specific descriptions are made to the utility model below in conjunction with Figure of description.
As depicted in figs. 1 and 2, a kind of gas-insulated ring network cabinet metal enclosed switchgear, including cabinet 1, the cabinet
It is equipped with SF6 sealed chambers 11, control room 12, current transformer room 13 in vivo；The side of the SF6 sealed chambers 11 is equipped with breaker
Operating mechanism 2, disconnecting switch earthing switch operating mechanism 3；It is equipped in the SF6 sealed chambers 11 and expands bus casing 111, mother
Wiring connector 112, vacuum circuit breaker 113, three-stations load switch unit 114, sealed fuse storehouse 115, insulator sensing
Device 116；The expansion bus casing 111 is electrically connected with bus tie 112, the bus tie 112 and vacuum
Breaker 113 is electrically connected, and the vacuum circuit breaker 113 is electrically connected with three-stations load switch unit 114, and described three
Station load switch unit 114 is electrically connected with sealed fuse storehouse 115, the sealed fuse storehouse 115 and insulation
Sub- sensor 116 is electrically connected；Current transformer 131, cable clip 132, heater are equipped in the current transformer room 13
133；The current transformer 131 is electrically connected by band shielding type cable head 134 with insulator sensor 116；Described
Insulator sensor 116 sealingly extends through the bottom of SF6 sealed chambers 11 with being electrically connected by band shielding type cable head 134；Institute
The circuit breaker operation mechanism 2 stated sealingly extends through SF6 sealed chambers 11 and is connect with vacuum circuit breaker 113, and the disconnecting switch connects
Ground switch operating mechanism 3 sealingly extends through SF6 sealed chambers 11 and is connect with three-stations load switch unit 114.
Expand bus casing, bus tie, vacuum circuit breaker, three-stations load switch unit, sealed fuse storehouse,
Insulator sensor shares gas chamber, reduces live cabinet splicing difficulty, is not related to live inflation.
Fuse frame, the fusing are equipped in sealed fuse storehouse 115 described in technical solutions of the utility model
Fuse is provided on device frame.Installation or when replacing fuse, if pull Hatch Opening spanner pull out fuse frame can install or
Replace fuse.
The outside of circuit breaker operation mechanism 2 described in technical solutions of the utility model is equipped with breaker operator door 21, institute
The outside of disconnecting switch earthing switch operating mechanism 3 stated is equipped with disconnector earthing switch and operates door 31.
Current transformer room 13 described in technical solutions of the utility model is equipped with current transformer room door 41.
There are three three-stations load switch units 114 described in technical solutions of the utility model, and operating position is to close respectively
Gate position, isolated location, earthing position.Three-stations load switch simplifies mutual interlocking.
Disconnector earthing switch operation door 31 described in technical solutions of the utility model is equipped with display 32.
Current transformer room door 41 described in technical solutions of the utility model is equipped with Anti-explosive glass observation window 42 and warning
Board 43.
Filled with the SF6 gases that air pressure is 1.4bar in SF6 sealed chambers described in technical solutions of the utility model.
There is good chemical stability and thermal stability, remarkable electrical insulating property and arc extinction performance during 1.4bar pressure.
Technical solutions of the utility model have it is simple in structure, small, price is low, power supply parameter and performance can be improved and
Supply Security, especially suitable for small to distribution facility place, the high underground of reliability requirement, plateau, coastal area etc. are natural
The place of environment and condition rather harsh.It is currently mainly used tight in lands used such as industrial and mining enterprises, substation, subway, light railways
, the restricted substation of narrow space and switching station.
Claims (7)
1. a kind of gas-insulated ring network cabinet metal enclosed switchgear, which is characterized in that including cabinet, be equipped in the cabinet
SF6 sealed chambers, control room, current transformer room；The side of the SF6 sealed chambers is equipped with circuit breaker operation mechanism, keeps apart
Close earthing switch operating mechanism；It is equipped in the SF6 sealed chambers and expands bus casing, bus tie, vacuum circuit breaker, three
Station load switch unit, sealed fuse storehouse, insulator sensor；The expansion bus casing and bus tie electricity
Gas connects, and the bus tie is electrically connected with vacuum circuit breaker, the vacuum circuit breaker and three-stations load switch
Unit is electrically connected, and the three-stations load switch unit is electrically connected with sealed fuse storehouse, and described is sealed molten
Disconnected device storehouse is electrically connected with insulator sensor；Current transformer, cable clip, heating are equipped in the current transformer room
Device；The current transformer is electrically connected by band shielding type cable head and insulator sensor；The insulator sensing
Device sealingly extends through the bottom of SF6 sealed chambers with being electrically connected by band shielding type cable head；The circuit breaker operation mechanism
It sealingly extends through SF6 sealed chambers to connect with vacuum circuit breaker, the disconnecting switch earthing switch operating mechanism sealingly extends through
SF6 sealed chambers are connect with three-stations load switch unit.
2. a kind of gas-insulated ring network cabinet metal enclosed switchgear as described in claim 1, which is characterized in that described is close
Fuse frame is equipped in envelope formula fuse storehouse, fuse is provided on the fuse frame.
3. a kind of gas-insulated ring network cabinet metal enclosed switchgear as described in claim 1, which is characterized in that described is disconnected
The outside of road device operating mechanism is equipped with breaker operator door, and the outside of the disconnecting switch earthing switch operating mechanism, which is equipped with, breaks
Road device disconnecting switch earthing switch operation door.
A kind of 4. gas-insulated ring network cabinet metal enclosed switchgear as described in claim 1, which is characterized in that the electricity
Current transformer room is equipped with current transformer room door.
A kind of 5. gas-insulated ring network cabinet metal enclosed switchgear as described in claim 1, which is characterized in that described three
Station load switch unit is closing position, isolated location, earthing position respectively there are three operating position.
6. a kind of gas-insulated ring network cabinet metal enclosed switchgear as claimed in claim 3, which is characterized in that described is disconnected
Road device disconnecting switch earthing switch operation door is equipped with display.
A kind of 7. gas-insulated ring network cabinet metal enclosed switchgear as claimed in claim 4, which is characterized in that the electricity
Current transformer room door is equipped with Anti-explosive glass observation window and caution board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721337210.5U CN207559418U (en) | 2017-10-17 | 2017-10-17 | A kind of gas-insulated ring network cabinet metal enclosed switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721337210.5U CN207559418U (en) | 2017-10-17 | 2017-10-17 | A kind of gas-insulated ring network cabinet metal enclosed switchgear |
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| Publication Number | Publication Date |
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| CN207559418U true CN207559418U (en) | 2018-06-29 |
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|---|---|---|---|
| CN201721337210.5U Active CN207559418U (en) | 2017-10-17 | 2017-10-17 | A kind of gas-insulated ring network cabinet metal enclosed switchgear |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107623279A (en) * | 2017-10-17 | 2018-01-23 | 杭州世创电子技术股份有限公司 | A kind of gas-insulated ring network cabinet metal enclosed switchgear |
-
2017
- 2017-10-17 CN CN201721337210.5U patent/CN207559418U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107623279A (en) * | 2017-10-17 | 2018-01-23 | 杭州世创电子技术股份有限公司 | A kind of gas-insulated ring network cabinet metal enclosed switchgear |
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