CN204068255U - A kind of terminal K type station dual-ring network electric power-feeding structure - Google Patents
A kind of terminal K type station dual-ring network electric power-feeding structure Download PDFInfo
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- CN204068255U CN204068255U CN201420517685.2U CN201420517685U CN204068255U CN 204068255 U CN204068255 U CN 204068255U CN 201420517685 U CN201420517685 U CN 201420517685U CN 204068255 U CN204068255 U CN 204068255U
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Abstract
The utility model relates to a kind of terminal K type station dual-ring network electric power-feeding structure, comprise a 10kV transformer station, 2nd 10kV transformer station, first level K type station, second subprime K type station, terminal K type station, the outlet of a described 10kV transformer station is connected with the inlet wire at first level K type station, the outlet of the 2nd described 10kV transformer station is connected with the inlet wire at second subprime K type station, first outlet at first time described level K type station is connected with first inlet wire at terminal K type station, second outlet at first time described level K type station is connected with the 3rd inlet wire at terminal K type station, first outlet at described second subprime K type station is connected with second inlet wire at terminal K type station, second outlet at described second subprime K type station is connected with the 4th inlet wire at terminal K type station.Compared with prior art, the utility model have safe and reliable, save transformer station position in storehouse resource, promote transformer station's utilization ratio, be applicable to the advantages such as high-capacity main transformer.
Description
Technical field
The utility model relates to power supply field, especially relates to a kind of terminal K type station dual-ring network electric power-feeding structure.
Background technology
Along with urban construction and the social development of megapolis, social power load significantly promotes, but soil and line channel resource day by day rare, in limited resources situation, the application of transformer station's high-capacity main transformer is promoted.But when 110kV application in substations 80MVA high-capacity main transformer, separate unit main transformer configures 16 outlet positions in storehouse, each outlet position in storehouse average current need reach 203A, could effectively discharge transformer station's power supply capacity.At present in present situation 10kV power network wiring mode situation, each outlet position in storehouse average current only about 100A, cannot discharge the power supply capacity of high-capacity main transformer, cause power supply bottleneck.
For realizing effective release of the power supply capacity of high-capacity main transformer, under the prerequisite ensureing power supply reliability, need be optimized 10kV power distribution network Connection Mode, the power supply capacity of the single outlet position in storehouse of 110kV transformer station is significantly promoted.
Utility model content
The purpose of this utility model be exactly in order to overcome above-mentioned prior art exist defect and a kind of safe and reliable terminal K type station dual-ring network electric power-feeding structure is provided.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of terminal K type station dual-ring network electric power-feeding structure, comprise a 10kV transformer station, 2nd 10kV transformer station, first level K type station, second subprime K type station, terminal K type station, the outlet of a described 10kV transformer station is connected with the inlet wire at first level K type station, the outlet of the 2nd described 10kV transformer station is connected with the inlet wire at second subprime K type station, first outlet at first time described level K type station is connected with first inlet wire at terminal K type station, second outlet at first time described level K type station is connected with the 3rd inlet wire at terminal K type station, first outlet at described second subprime K type station is connected with second inlet wire at terminal K type station, second outlet at described second subprime K type station is connected with the 4th inlet wire at terminal K type station.
The outlet of a described 10kV transformer station and the outlet of the 2nd 10kV transformer station are provided with circuit breaker, and adopt two also cable.
The outlet at first time described level K type station, second subprime K type station and terminal K type station and inlet wire are equipped with circuit breaker.
Described terminal K type station quantity is 1-2.
Compared with prior art, the utility model has the following advantages:
One, power supply capacity significantly promotes, and compared with the station wiring of present situation K type, wiring construction power supply capacity of the present utility model promotes one times, and namely the average current of transformer station's outlet position in storehouse promotes one times to three times, can adapt to the application of 110kV transformer station high-capacity main transformer.
Two, high safe and reliable; K type station line position in storehouse all establishes circuit breaker, equipment automatic bus, circuit to establish longitudinal difference protection; and possess dual-ring network power network wiring structure; not only meet " N-1 " verification of electrical network; when there is " N-1 "; can in very short time rapid isolated fault point, transfer load, and in satisfied maintenance situation " N-1 " verification, be applicable to high power supply reliability demand area.
Three, the mode of connection is flexible, and wiring construction of the present utility model, operationally can realize the load transfer plan between different substation, and visual on the implementation regional construction situation is implemented step by step, applied range.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein: 1, a 10kV transformer station, the 2, the 2nd 10kV transformer station, 3, first level K type station, 4, second subprime K type station, 5, terminal K type station.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Embodiment:
As shown in Figure 1, a kind of terminal K type station dual-ring network electric power-feeding structure, comprise a 10kV transformer station 1, 2nd 10kV transformer station 2, first level K type station 3, second subprime K type station 4, terminal K type station 5, the outlet of the one 10kV transformer station 1 is connected with the inlet wire at first level K type station 3, the outlet of the 2nd 10kV transformer station 2 is connected with the inlet wire at second subprime K type station 4, first outlet at first level K type station 3 is connected with first inlet wire at terminal K type station 5, second outlet at first level K type station 3 is connected with the 3rd inlet wire at terminal K type station 5, first outlet at second subprime K type station 4 is connected with second inlet wire at terminal K type station 5, second outlet at second subprime K type station 4 is connected with the 4th inlet wire at terminal K type station 5.
The outlet of the one 10kV transformer station 1 and the outlet of the 2nd 10kV transformer station 2 are provided with circuit breaker, and adopt two also cable.
The outlet at first level K type station 3, second subprime K type station 4 and terminal K type station 5 and inlet wire are equipped with circuit breaker.
Terminal K type station 5 quantity is 1-2.
Claims (4)
1. a terminal K type station dual-ring network electric power-feeding structure, it is characterized in that, comprise a 10kV transformer station (1), the 2nd 10kV transformer station (2), first level K type station (3), second subprime K type station (4), terminal K type station (5):
The outlet of a described 10kV transformer station (1) is connected with the inlet wire of first level K type station (3), the outlet of the 2nd described 10kV transformer station (2) is connected with the inlet wire at second subprime K type station (4), first outlet of first time described level K type station (3) is connected with first inlet wire at terminal K type station (5), second outlet of first time described level K type station (3) is connected with the 3rd inlet wire at terminal K type station (5), first outlet at described second subprime K type station (4) is connected with second inlet wire at terminal K type station (5), second outlet at described second subprime K type station (4) is connected with the 4th inlet wire at terminal K type station (5).
2. a kind of terminal K type station according to claim 1 dual-ring network electric power-feeding structure, it is characterized in that, the outlet of a described 10kV transformer station (1) and the outlet of the 2nd 10kV transformer station (2) are provided with circuit breaker, and adopt two also cable.
3. a kind of terminal K type station according to claim 1 dual-ring network electric power-feeding structure, it is characterized in that, the outlet at first time described level K type station (3), second subprime K type station (4) and terminal K type station (5) and inlet wire are equipped with circuit breaker.
4. a kind of terminal K type station according to claim 1 dual-ring network electric power-feeding structure, is characterized in that, described terminal K type station (5) quantity is 1-2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420517685.2U CN204068255U (en) | 2014-09-10 | 2014-09-10 | A kind of terminal K type station dual-ring network electric power-feeding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420517685.2U CN204068255U (en) | 2014-09-10 | 2014-09-10 | A kind of terminal K type station dual-ring network electric power-feeding structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204068255U true CN204068255U (en) | 2014-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420517685.2U Active CN204068255U (en) | 2014-09-10 | 2014-09-10 | A kind of terminal K type station dual-ring network electric power-feeding structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204068255U (en) |
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2014
- 2014-09-10 CN CN201420517685.2U patent/CN204068255U/en active Active
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| C14 | Grant of patent or utility model | ||
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