CN203071483U - Gas-insulation metal-enclosed switchgear - Google Patents
Gas-insulation metal-enclosed switchgear Download PDFInfo
- Publication number
- CN203071483U CN203071483U CN 201320092625 CN201320092625U CN203071483U CN 203071483 U CN203071483 U CN 203071483U CN 201320092625 CN201320092625 CN 201320092625 CN 201320092625 U CN201320092625 U CN 201320092625U CN 203071483 U CN203071483 U CN 203071483U
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- Prior art keywords
- earthing switch
- bus
- isolation earthing
- type isolation
- insulated switchgear
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Abstract
The utility model discloses a gas-insulation metal-enclosed switchgear including a pedestal and circuit breakers disposed on the pedestal. The pedestal is also provided with a first current transformer, a second current transformer, a first bus-type isolating earthing switch and a circuit-type isolating earthing switch. The number of the circuit breakers is three. Input terminals of the circuit breakers are connected to the first bus-type isolating earthing switch. Output terminals of the three circuit breakers are connected to the circuit-type isolating earthing switch. An output terminal of the circuit-type isolating earthing switch is connected with a four-way bus. The four-way bus is connected with a fault close earthing switch and a wire inlet/outlet sleeve unit respectively. According to the utility model, the circuit breakers adopt a form of three-phase branch boxes, so that the structure becomes compact and the integral size becomes small. At the same time, requirements for single-phase reclosure of the circuit breakers of a client can be satisfied.
Description
Technical field
The utility model relates to a kind of switchgear, especially a kind of Cubicle Gas-Insulated Switchgear.
Background technology
At present, Cubicle Gas-Insulated Switchgear is to be used for the important comprehensive function complete set of equipments of switching regular link or faulty line in the electric power system, and along with the continuous development of power industry, the day of the lasting progress of power equipment technology and soil utilization now is becoming tight, electric power system has proposed compact conformation to Cubicle Gas-Insulated Switchgear, the requirement of volume miniaturization.
Chinese patent application number is 200520042180.6 " a kind of Cubicle Gas-Insulated Switchgear ", and it adopts full three-phase to divide box structure, three extremely mutually flat rafts arrange that circuit breaker is vertical layout.Disclosed structure is not only complicated in this patent, and part is various, and its isolating switch is not that global design becomes three station isolation earthing switch with earthed switch; This structure floor space is big in addition, is unfavorable for the requirement of sustainability.
Chinese patent application number is 201020594593.6 a kind of " Cubicle Gas-Insulated Switchgear ", and its main bus bar adopts three-phase combined type, and circuit breaker, current transformer, isolating switch, earthed switch are the split-phase type structure.Only adopt the common box type design in this patent on a small quantity, but the whole floor space of equipment is still very big.
Chinese patent application number is 200920271376.0 " a kind of Cubicle Gas-Insulated Switchgear ", its whole three-phase combined type structure that adopts.Though can reduce the floor space of switchgear in this patent well, circuit breaker adopts the three-phase combined type design, can not satisfy the single-pole reclosing requirement, the shortcoming practical application.
In sum, to how making the more compact structure of Cubicle Gas-Insulated Switchgear, reducing overall volume in the prior art, can satisfy the client again to the single-pole reclosing requirement of circuit breaker simultaneously.
The utility model content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of more compact structure, reduces overall volume, can satisfy simultaneously the Cubicle Gas-Insulated Switchgear that the client requires the single-pole reclosing of circuit breaker again.
Technical solutions of the utility model are: a kind of Cubicle Gas-Insulated Switchgear, and comprise base, and be positioned at the circuit breaker on the base,
Also be provided with first current transformer, second current transformer, the first bus type isolation earthing switch and line type isolation earthing switch on the described base;
Described circuit breaker is three, and the input of three circuit breakers all inserts the first bus type isolation earthing switch, the equal line attachment type of the output of three circuit breakers isolation earthing switch;
The output of described line type isolation earthing switch is connected with the four-way bus, and this four-way bus also is connected to fail close splice grafting ground switch and sleeve pipe turnover line unit respectively.
In order to satisfy the needs in different operating place, the input of described three circuit breakers also is connected with the second bus type isolation earthing switch, thereby realizes the installation of double-bus connected mode.If have only first a bus type isolation earthing switch to be connected with the input of three circuit breakers, then can realize the installation of single busbar connection connected mode.
For the input current in the observation circuit, so also include three first current transformers, first current transformer is corresponding one by one with the circuit breaker input, guarantees thus the input current of input circuit breaker is monitored in real time.
For the output current in the observation circuit, so also include three second current transformers, second current transformer is corresponding one by one with the circuit breaker output, guarantees thus the output current of output circuit breaker is monitored in real time.
By being connected by straight-through bus between described four-way bus and sleeve pipe turnover line unit, it is more reasonable with being connected of four-way bus to make that sleeve pipe passes in and out the line unit.
Wherein, the first bus type isolation earthing switch and the second bus type isolation earthing switch are bus type three station isolation earthing switch, described line type isolation earthing switch is line type three station isolation earthing switch, organic combination isolating switch and two kinds of functions of earthed switch, both simplify product structure, reduced complicated parts kind and quantity, guaranteed the mechanical interlocking of isolating switch and earthed switch again natively.
Three circuit breakers are that three-phase divides box structure, and every utmost point circuit breaker is joined an operating mechanism, thereby satisfy the single-pole reclosing requirement.
First current transformer, second current transformer, the first bus type isolation earthing switch, the second bus type isolation earthing switch, line type isolation earthing switch, four-way bus, straight-through bus, fail close splice grafting ground switch and sleeve pipe turnover line unit are the three-phase combined type structure.Make the product compact overall structure, effectively reduce overall volume and floor space, the economy height.
Further arrange is also to be provided with the bracing frame that supports the first bus type isolation earthing switch, four-way bus and sleeve pipe turnover line unit on the described base again.Because the first bus type isolation earthing switch, four-way bus and sleeve pipe turnover line unit weight are all bigger, can guarantee separately stable and firm, quality and the fail safe of raising product self by bracing frame.Herein, name and the position of the first bus type isolation earthing switch and the second bus type isolation earthing switch are not clear and definite certain, mainly are to decide according to practical application.
The beneficial effects of the utility model are:
One, circuit breaker adopts the three-phase branch mailbox, all the other are the Threephase common-box structure, and the normal space width is 1620mm, highly do not comprise built on stilts turnover line part for 3870mm(), significantly reduced the floor space of Cubicle Gas-Insulated Switchgear, be beneficial to the construction that reduces transformer station especially and drop into.
But two, the normal space whole Transporting of this Cubicle Gas-Insulated Switchgear so switchgear can directly be finished Installation and Debugging in factory, has significantly reduced field erected workload.
Three, one of them output of four-way bus is not connected with any unit, plays standby effect, improves self function expansion space.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the A-A cutaway view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described:
As Fig. 1, shown in 2, present embodiment comprises base 1, and be positioned at circuit breaker 2 on the base 1, first current transformer 31, second current transformer 32, the first bus type isolation earthing switch 41, second bus type isolation earthing switch 42 and the line type isolation earthing switch 5: circuit breaker 2 quantity are three, three circuit breakers 2 adopt horizontal flat raft to arrange, each circuit breaker 2 is joined an operating mechanism and is driven, the input 21 of three circuit breakers 2 connects respectively and all inserts the first bus type isolation earthing switch 41, and the output 22 equal line attachment type isolation earthing switch 5 of three circuit breakers 2; Simultaneously, for the electric current of monitoring breaker 2 inputs 21 and output 22, thus at input 21 places of each circuit breaker 2 first current transformer 31 is installed, and at output 22 places of each circuit breaker 2 second current transformer 32 is installed; Three first current transformers 31 are positioned at a closed shell and constitute box structure altogether, and three second current transformers 32 also are positioned at a closed shell and constitute box structure altogether.
An output of this line type isolation earthing switch 5 is connected with four-way bus 6, this four-way bus 6 wherein two joints is connected with fail close splice grafting ground switch 7 and sleeve pipe turnover line unit 8, surplus next joint is as standby, this spare space can be used for connecting voltage transformer, thus the voltage condition in the observation circuit.Wherein, 8 be connected by leading directly to bus 9 between four-way bus 6 and sleeve pipe turnover line unit.
Wherein, three circuit breakers 2 adopt three-phase branch mailbox structural configuration, and first current transformer 31, second current transformer 32, the first bus type isolation earthing switch 41, the second bus type isolation earthing switch 42, line type isolation earthing switch 5, four-way bus 6, fail close splice grafting ground switch 7, sleeve pipe turnover line unit 8 and straight-through bus 9 adopt the three-phase combined type structure.
In order further to improve integrally-built stability, so on base 1, also be provided with for the bracing frame 11 that supports the first bus type isolation earthing switch 41, four-way bus 6 and sleeve pipe turnover line unit 8.
In the utility model, three circuit breakers 2 adopt the three-phase branch mailbox, all the other are the Threephase common-box structure, the normal space width is 1620mm, highly do not comprise built on stilts turnover line part for 3870mm(), significantly reduced the floor space of Cubicle Gas-Insulated Switchgear, be beneficial to the construction that reduces transformer station especially and drop into.Wherein, but the normal space whole Transporting of this Cubicle Gas-Insulated Switchgear so switchgear can directly be finished Installation and Debugging in factory, has significantly reduced field erected workload.In addition, the first bus type isolation earthing switch 41, the second bus type isolation earthing switch 42 and line type isolation earthing switch 5 are three station isolation earthing switch, and three station isolation earthing switch organic combinations isolating switch and two kinds of functions of earthed switch, both simplify product structure, reduced complicated parts kind and quantity, guaranteed the mechanical interlocking of isolating switch and earthed switch again natively.The utility model more compact structure, overall volume is little, can satisfy the client again to the single-pole reclosing requirement of circuit breaker simultaneously.
Claims (8)
1. a Cubicle Gas-Insulated Switchgear comprises base, and is positioned at the circuit breaker on the base, it is characterized in that:
Also be provided with first current transformer, second current transformer, the first bus type isolation earthing switch and line type isolation earthing switch on the described base;
Described circuit breaker is three, and the input of three circuit breakers all inserts the first bus type isolation earthing switch, the equal line attachment type of the output of three circuit breakers isolation earthing switch;
The output of described line type isolation earthing switch is connected with the four-way bus, and this four-way bus also is connected to fail close splice grafting ground switch and sleeve pipe turnover line unit respectively.
2. Cubicle Gas-Insulated Switchgear according to claim 1, it is characterized in that: the input of described three circuit breakers also is connected with the second bus type isolation earthing switch.
3. Cubicle Gas-Insulated Switchgear according to claim 1, it is characterized in that: also include three first current transformers, first current transformer is corresponding one by one with the circuit breaker input.
4. Cubicle Gas-Insulated Switchgear according to claim 1, it is characterized in that: also include three second current transformers, second current transformer is corresponding one by one with the circuit breaker output.
5. Cubicle Gas-Insulated Switchgear according to claim 1, it is characterized in that: three circuit breakers are that three-phase divides box structure.
6. Cubicle Gas-Insulated Switchgear according to claim 2 is characterized in that: described four-way bus is connected by leading directly to bus with sleeve pipe turnover line unit.
7. Cubicle Gas-Insulated Switchgear according to claim 6 is characterized in that: it is the three-phase combined type structure that described first current transformer, second current transformer, the first bus type isolation earthing switch, the second bus type isolation earthing switch, line type isolation earthing switch, four-way bus, straight-through bus, fail close splice grafting ground switch and sleeve pipe pass in and out the line unit.
8. Cubicle Gas-Insulated Switchgear according to claim 1 is characterized in that: also be provided with the bracing frame that supports the first bus type isolation earthing switch, four-way bus and sleeve pipe turnover line unit on the described base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320092625 CN203071483U (en) | 2013-02-28 | 2013-02-28 | Gas-insulation metal-enclosed switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320092625 CN203071483U (en) | 2013-02-28 | 2013-02-28 | Gas-insulation metal-enclosed switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203071483U true CN203071483U (en) | 2013-07-17 |
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ID=48770234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320092625 Expired - Fee Related CN203071483U (en) | 2013-02-28 | 2013-02-28 | Gas-insulation metal-enclosed switchgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203071483U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113196602A (en) * | 2018-12-19 | 2021-07-30 | Abb瑞士股份有限公司 | Three-phase switchgear using single-phase devices in a single enclosure |
-
2013
- 2013-02-28 CN CN 201320092625 patent/CN203071483U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113196602A (en) * | 2018-12-19 | 2021-07-30 | Abb瑞士股份有限公司 | Three-phase switchgear using single-phase devices in a single enclosure |
| CN113196602B (en) * | 2018-12-19 | 2023-12-29 | Abb瑞士股份有限公司 | Three-phase switching device using single-phase device in single housing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20180228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |