CN203850641U - Optimized 110kV cable wiring structure capable of realizing fault fast isolation - Google Patents
Optimized 110kV cable wiring structure capable of realizing fault fast isolation Download PDFInfo
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- CN203850641U CN203850641U CN201420222395.5U CN201420222395U CN203850641U CN 203850641 U CN203850641 U CN 203850641U CN 201420222395 U CN201420222395 U CN 201420222395U CN 203850641 U CN203850641 U CN 203850641U
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- transformer
- wiring structure
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- 238000002955 isolation Methods 0.000 title claims abstract description 15
- 239000012212 insulator Substances 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- WQAQPCDUOCURKW-UHFFFAOYSA-N butanethiol Chemical compound CCCCS WQAQPCDUOCURKW-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Abstract
The utility model discloses an optimized 110kV cable wiring structure capable of realizing fault fast isolation. The optimized 110kV cable wiring structure includes three main transformers arranged in the same substation; the 110kV side of each main transformer is provided with GIS equipment; the three main transformers are connected onto three different bus bars of a 220kV power source respectively through the GIS equipment; lines between main transformers of different substations, which are connected with the same bus bar of the 220kV power source, are provided with grounding switches 1 and disconnecting switches 1. According to the optimized 10kV cable wiring structure of the utility model, the line transformer unit groups are adopted; no bus bar is arranged at high-voltage sides, and the power source comes from different bus bars of different 220kV substations, and therefore, risk of voltage loss of all 110kV substations is very low; when three 110kV lines are all put into operation, line operation utilization rate can reach 100%; wiring designs of the 110kV sides of the 110kV substations are optimized, and an isolation function can be additionally realized in a 110kV power grid system, and therefore, rapid isolation of failed equipment or lines can be realized, and a power outage range when local faults occur can be decreased.
Description
Technical field
The utility model relates to electric power transportation technology field, particularly relates to a kind of 110kV cable connection of realizing the quick isolation of fault and optimizes structure.
Background technology
Along with Process of Urbanization Construction development, the 110kV of transformer station power distribution equipment general choice SF6 gas insulated metal enclosed swit chgear (GIS equipment) is to save land used, yet adopt more and more cable line to be connected between transformer station and transformer station, the 110kV side joint line that 110kV transformer station adopts is at present not easy to isolate fast the local fault of grid equipment, and faulty equipment can not be repaired fast, easily cause power failure in a big way.
Utility model content
For overcoming the deficiencies in the prior art, the purpose of this utility model is to provide a kind of 110kV cable connection of realizing the quick isolation of fault to optimize structure.
The utility model for solving the technical scheme of its technical problem employing is:
A kind of 110kV cable connection of realizing the quick isolation of fault is optimized structure, comprise three main transformers that are arranged in same transformer station, the 110kV side of every main transformer is provided with GIS equipment, three main transformers respectively through described GIS equipment connection on three of 220kV power supply different buses; Be connected on the circuit between the main transformer of the different substation on same 220kV power source bus and be provided with earthed switch one and isolating switch one.
Further, described GIS equipment comprises insulator, earthed switch two, circuit breaker, current transformer, earthed switch three, isolating switch two, high speed grounding switch, voltage transformer, the cable termination that is connected to main transformer 110kV side in turn.
The beneficial effects of the utility model are: the utility model adopts line transformer unit group, bus is not established in high-pressure side, power supply is from the different buses of different 220kV transformer stations, the risk of 110kV no-voltage of entire station is very low, article three, when 110kV circuit all puts into operation, line line efficiency can reach 100%.The utility model has also been optimized the wiring design of the 110kV side of 110kV transformer station, increased the isolation features in 110kV network system, when there is the local fault of grid equipment or circuit, by system call, the analysis of fault judged and carry out grid switching operation, the quick isolation of realization to faulty equipment or circuit, power failure range while reducing local fault, but also have arrangement compactness, takes up an area the advantages such as little, reduced investment.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and example, the utility model is described in further detail.
Fig. 1 is wiring schematic diagram of the present utility model;
Fig. 2 is the structural representation of GIS equipment of the present utility model.
Embodiment
See figures.1.and.2, a kind of 110kV cable connection of realizing the quick isolation of fault of the present utility model is optimized structure, comprise three main transformers 2 that are arranged in same transformer station 1, the 110kV side of every main transformer 2 is provided with 3, three main transformers 2 of GIS equipment and through described GIS equipment 3, is connected on three different buses of 220kV power supply respectively; Be connected on the circuit between the main transformer 2 of the different substation 1 on same 220kV power source bus and be provided with earthed switch one ES1 and isolating switch one DS1.
The utility model adopts line transformer unit group, and bus is not established in high-pressure side, and power supply is from the different buses of different 220kV transformer stations, and the risk of 110kV no-voltage of entire station is very low, and when three 110kV circuits all put into operation, line line efficiency can reach 100%.In addition, main transformer 2 is connected with the main transformer 2 of another transformer station 1 with isolating switch one DS1 by earthed switch one ES1, increased the isolation features in 110kV network system, when there is the local fault of grid equipment or circuit, by system call, the analysis of fault judged and carry out grid switching operation, the quick isolation of realization to faulty equipment or circuit, the power failure range while reducing local fault.
Further, described GIS equipment 3 comprises insulator BUSH, earthed switch two ES2, circuit breaker CB, Current Transmit, earthed switch three ES3, isolating switch two DS2, high speed grounding switch FMES, voltage transformer VT, the cable termination CHD of the 110kV side that is connected to main transformer 2 in turn, because each 110kV circuit is provided with GIS equipment 3, thereby can greatly improve the reliability of transformer station's work.
The above, be preferred embodiment of the present invention, and the present invention is not limited to above-mentioned execution mode, as long as it reaches technique effect of the present invention with identical means, all should belong to protection scope of the present invention.
Claims (2)
1. a 110kV cable connection of realizing the quick isolation of fault is optimized structure, it is characterized in that: comprise three main transformers that are arranged in same transformer station, the 110kV side of every main transformer is provided with GIS equipment, three main transformers respectively through described GIS equipment connection on three of 220kV power supply different buses; Be connected on the circuit between the main transformer of the different substation on same 220kV power source bus and be provided with earthed switch one and isolating switch one.
2. a kind of 110kV cable connection of realizing the quick isolation of fault according to claim 1 is optimized structure, and it is characterized in that: described GIS equipment comprises insulator, earthed switch two, circuit breaker, current transformer, earthed switch three, isolating switch two, high speed grounding switch, voltage transformer, the cable termination that is connected to main transformer 110kV side in turn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420222395.5U CN203850641U (en) | 2014-04-30 | 2014-04-30 | Optimized 110kV cable wiring structure capable of realizing fault fast isolation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420222395.5U CN203850641U (en) | 2014-04-30 | 2014-04-30 | Optimized 110kV cable wiring structure capable of realizing fault fast isolation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203850641U true CN203850641U (en) | 2014-09-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420222395.5U Expired - Lifetime CN203850641U (en) | 2014-04-30 | 2014-04-30 | Optimized 110kV cable wiring structure capable of realizing fault fast isolation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203850641U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110208644A (en) * | 2019-05-15 | 2019-09-06 | 广州供电局有限公司 | GIS cable machinery |
-
2014
- 2014-04-30 CN CN201420222395.5U patent/CN203850641U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110208644A (en) * | 2019-05-15 | 2019-09-06 | 广州供电局有限公司 | GIS cable machinery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |