CN203387169U - Vacuum circuit breaker type loop network cabinet - Google Patents
Vacuum circuit breaker type loop network cabinet Download PDFInfo
- Publication number
- CN203387169U CN203387169U CN201320361562.XU CN201320361562U CN203387169U CN 203387169 U CN203387169 U CN 203387169U CN 201320361562 U CN201320361562 U CN 201320361562U CN 203387169 U CN203387169 U CN 203387169U
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- CN
- China
- Prior art keywords
- cabinet
- circuit breaker
- vacuum circuit
- cabinet body
- breaker
- 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.)
- Expired - Fee Related
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- 238000002955 isolation Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
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- Gas-Insulated Switchgears (AREA)
Abstract
The utility model relates to a vacuum circuit breaker type loop network cabinet comprising a cabinet body. A load switch and an earthing switch are arranged in the cabinet body; a circuit breaker and a current transformer are successively connected between the load switch and the earthing switch; and a secondary compartment is fixed at the top of the cabinet body. Because the circuit breaker is arranged in the cabinet body, when a fault current occurs in the circuit, the circuit breaker carries out connection and disconnection automatically, so that the equipment is protected. Moreover, switching on of the circuit breaker can be realized remotely, thereby realizing automation of the distribution network; and because the secondary compartment is arranged at the top of the cabinet body, a circuit breaker cabinet and an isolating cabinet can be combined into one cabinet, thereby lowering the practical operation cost of the equipment.
Description
Technical field
The utility model relates to the transmission & distribution electric equipment, specifically a kind of vacuum circuit-breaker formula ring main unit.
Background technology
In order to improve power supply reliability, make the user obtain power supply from both direction, usually power supply network is connected into to annular, this supply power mode is referred to as ring network power supply.
Ring main unit generally is divided into air insulation and SF6 insulate two kinds; for deciliter load current, cut-off short circuit current and no-load transformer electric current, the charging current of certain distance overhead transmission line, cable line; rising and control and protective effect, is the important switchgear of ring network power supply and terminal power supply.In industrial and mining enterprises, residential quarters, harbour and skyscraper etc. exchange the 10kV distribution system, its high tension loop adopts on-load switch usually, and is furnished with the high-tension fuse protection.
This conventional ring main unit has following shortcoming: 1, equipment can only rely on on-load switch to cut-off load current, when breaking down electric current, relies on the fuse in the overcurrent fuse to realize cut-offfing circuit, thereby equipment is protected.But when equipment puts into operation again, need the maintainer to change the fuse in fuse to scene, increased cost of labor, and can't realize distribution automation; 2, the specified drop-out current of conventional ring main unit is 630/1250A, along with industrial expansion and growth in the living standard, the rated current that 630/1250A occurs can't meet the need for electricity of branch road at all, for satisfying the demands, can only increase branch line, and this just causes equipment cost significantly to promote; Need provide the contact cabinet while 3, two sections or above bus occurring in circuit, and current contact cabinet generally all is comprised of isolation cabinet, breaker cabinet two cabinets, has increased the putting equipment in service cost.
Summary of the invention
The utility model, for the problems referred to above, provides a kind of vacuum circuit-breaker formula ring main unit, and this ring main unit can cut-off automatically, thereby realizes distribution automation.
According to the technical solution of the utility model: a kind of vacuum circuit-breaker formula ring main unit, comprise cabinet, be furnished with on-load switch and earthing in described cabinet, be connected with circuit breaker and current transformer in turn between described on-load switch and described earthing.
Be parallel with lightning arrester on described on-load switch.
Be parallel with electrification display on described current transformer.
The top of described cabinet is fixed with the secondary compartment.
Technique effect of the present utility model is: the utility model is furnished with circuit breaker in cabinet, while breaking down electric current in circuit, by circuit breaker, automatically cut-offs, and equipment is played a protective role, and a distant place can realize breaker closing, realizes distribution automation; The top of cabinet is provided with the secondary compartment, breaker cabinet and isolation cabinet can be assembled into to a cabinet, reduces the cost that puts into operation of equipment.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The left view that Fig. 2 is Fig. 1.
Fig. 3 is electrical schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is further described.
In Fig. 1～Fig. 3, comprise on-load switch 1, circuit breaker 2, current transformer 3, lightning arrester 4, electrification display 5, earthing 6, cabinet 7, secondary compartment 8 etc.
As shown in FIG. 1 to 3, the utility model is a kind of vacuum circuit-breaker formula ring main unit, comprises cabinet 7, is furnished with on-load switch 1 and earthing 6 in cabinet 7, is connected with circuit breaker 2 and current transformer 3 between on-load switch 1 and earthing 6 in turn.
Be parallel with lightning arrester 4 on on-load switch 1; Be parallel with electrification display 5 on current transformer 3.
The top of cabinet 7 is fixed with secondary compartment 8.
The utlity model has following advantage: 1, the utility model is furnished with circuit breaker 2 in cabinet 7, while breaking down electric current in circuit, by circuit breaker 2, automatically cut-off, equipment is played a protective role, and a distant place can realize that circuit breaker 2 closes a floodgate, and realizes distribution automation; 2, the rated current of circuit breaker 2 can reach 4000A, can make 2 of former need or 3 s' outlet, and a present outlet can solve; 3, the top of cabinet 7 is provided with the secondary compartment, breaker cabinet and isolation cabinet can be assembled into to a cabinet, reduces the cost that puts into operation of equipment.
Claims (4)
1. a vacuum circuit-breaker formula ring main unit, comprise cabinet (7), be furnished with on-load switch (1) and earthing (6) in described cabinet (7), it is characterized in that: be connected with circuit breaker (2) and current transformer (3) between described on-load switch (1) and described earthing (6) in turn.
2. according to vacuum circuit-breaker formula ring main unit claimed in claim 1, it is characterized in that: be parallel with lightning arrester (4) on described on-load switch (1).
3. according to vacuum circuit-breaker formula ring main unit claimed in claim 1, it is characterized in that: be parallel with electrification display (5) on described current transformer (3).
4. according to vacuum circuit-breaker formula ring main unit claimed in claim 1, it is characterized in that: the top of described cabinet (7) is fixed with secondary compartment (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320361562.XU CN203387169U (en) | 2013-06-21 | 2013-06-21 | Vacuum circuit breaker type loop network cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320361562.XU CN203387169U (en) | 2013-06-21 | 2013-06-21 | Vacuum circuit breaker type loop network cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203387169U true CN203387169U (en) | 2014-01-08 |
Family
ID=49875619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320361562.XU Expired - Fee Related CN203387169U (en) | 2013-06-21 | 2013-06-21 | Vacuum circuit breaker type loop network cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203387169U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2013
- 2013-06-21 CN CN201320361562.XU patent/CN203387169U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100000 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: Nanjing Nari Co., Ltd. Patentee after: Jiangsu Nan Ruihengchi electrical equipment Co., Ltd Address before: 100000 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee before: State Grid Corporation of China Patentee before: Nanjing Nari Co., Ltd. Patentee before: Wuxi Hengchi Electric Apparatus Manufacturing Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20160621 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |