CN112653144B - 220kV transformer substation - Google Patents
220kV transformer substation Download PDFInfo
- Publication number
- CN112653144B CN112653144B CN202011533152.XA CN202011533152A CN112653144B CN 112653144 B CN112653144 B CN 112653144B CN 202011533152 A CN202011533152 A CN 202011533152A CN 112653144 B CN112653144 B CN 112653144B
- Authority
- CN
- China
- Prior art keywords
- low
- double
- bus
- voltage
- main transformer
- 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.)
- Active
Links
- 238000004804 winding Methods 0.000 claims description 31
- 239000003990 capacitor Substances 0.000 claims description 24
- 238000010276 construction Methods 0.000 abstract description 3
- 230000002093 peripheral effect Effects 0.000 abstract description 3
- 230000009977 dual effect Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 6
- 230000007935 neutral effect Effects 0.000 description 2
- 101100489713 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) GND1 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention provides a transformer substation, which comprises a first double-low-voltage bushing transformer, a second double-low-voltage bushing transformer, a third double-low-voltage bushing transformer and a fourth double-low-voltage bushing transformer, wherein two low-voltage bushings of each main transformer are connected in parallel at the low-voltage side of the transformer, the low-voltage side of each transformer is output for 2 times, each section of bus is connected to form a double-bus wiring, and each section of bus is respectively connected with 10 times of 10kV outgoing lines. According to the invention, by increasing the number of low-voltage outgoing lines, the power supply capacity of the low-voltage side is improved, the power supply capacity of the 220kV transformer substation is expanded, the connection of a 220kV network and the guarantee of 110kV network power supply capacity are both considered, and meanwhile, sufficient power supply can be provided for peripheral loads. In addition, through the construction of the transformer substation, the number of distribution points of the transformer substation in the urban central area can be reduced, and the power grid structure and investment planning are optimized.
Description
Technical Field
The invention relates to the technical field of substations, in particular to a 220kV substation.
Background
The existing 220kV transformer substation is usually a hub transformer substation, has the functions of connecting a 220kV network and guaranteeing 110kV network power supply, is additionally provided with 10kV network power supply, and has the capacity ratio of windings of three voltage classes (220 kV, 110kV and 10 kV) of a main transformer of 100:100:33.3, from which it can also be seen that the substation supplies 10kV with only 1/3 of its capacity. As shown in FIG. 1, the scale of a typical transformer substation is main transformer 4x240MVA or 4x180MVA,220kV outgoing line 6 times, 110kV outgoing line 14 times and 10kV outgoing line 30 times, wherein #1 to #3 main transformer is provided with 10 times of outgoing lines respectively, and #4 main transformer is provided with reactive compensation only and is provided with no outgoing line. 220kV adopts double-bus wiring, 110kV adopts double-bus double-section wiring, the first three main transformers of 10kV part adopt single-bus double-section four-section bus wiring, and the fourth main transformer unit wiring. Under the prior art condition, the limit opening current of the low-voltage side switch cabinet breaker of the transformer is 4000A, and the rated currents of the low-voltage winding, the low-voltage bushing and the 10kV switch cabinet bus of the transformer are always 4000A under the limiting condition, so that only 10 return wires are normally connected. It can be seen that the current transformer station has a weak power supply capacity.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a 220kV transformer substation so as to solve the problem of weak power supply capacity in the prior art.
In order to solve the technical problems described above, the present invention provides a 220kV transformer substation, comprising a first double low voltage bushing main transformer, a second double low voltage bushing main transformer, a third double low voltage bushing main transformer and a fourth double low voltage bushing main transformer, wherein two double low voltage bushings of the first double low voltage bushing main transformer are connected in parallel to the 10kV side of the first double low voltage bushing main transformer, two double low voltage bushings of the second double low voltage bushing main transformer are connected in parallel to the 10kV side of the second double low voltage bushing main transformer, two double low voltage bushings of the third double low voltage bushing main transformer are connected in parallel to the 10kV side of the third double low voltage bushing main transformer, two double low voltage bushings of the fourth double low voltage bushing main transformer are connected in parallel to the 10kV side of the fourth double low voltage bushing main transformer, the 10kV side of the first double low voltage bushing main transformer is connected with a first 10kV bus bar through a first circuit breaker and a line, the 10kV side of the first double-low-voltage sleeve main transformer is also connected with a second 10kV bus through a second breaker and a circuit, the 10kV side of the second double-low-voltage sleeve main transformer is connected with a third 10kV bus through a third breaker and a circuit, the 10kV side of the second double-low-voltage sleeve main transformer is also connected with a fourth 10kV bus through a fourth breaker and a circuit, the 10kV side of the third double-low-voltage sleeve main transformer is connected with a fifth 10kV bus through a fifth breaker and a circuit, the 10kV side of the third double-low-voltage sleeve main transformer is also connected with a sixth 10kV bus through a sixth breaker and a circuit, the 10kV side of the fourth double-low-voltage sleeve main transformer is connected with a seventh 10kV bus through a seventh breaker and a circuit, the 10kV side of the fourth double-low-voltage sleeve main transformer is also connected with an eighth 10kV bus through an eighth breaker and a circuit, the first 10kV bus is connected with a third 10kV bus through a ninth circuit breaker and a connecting wire, the third 10kV bus is connected with a fifth 10kV bus through a tenth circuit breaker and a connecting wire, the fifth 10kV bus is connected with a seventh 10kV bus through an eleventh circuit breaker and a connecting wire, the second 10kV bus is connected with a fourth 10kV bus through a twelfth circuit breaker and a connecting wire, the fourth 10kV bus is connected with a sixth 10kV bus through a thirteenth circuit breaker and a connecting wire, and the sixth 10kV bus is connected with an eighth 10kV bus through a fourteenth circuit breaker and a connecting wire.
In a specific embodiment, the first 10kV busbar is connected to the input end of the first 10 return wire cabinet through a feeder, the second 10kV busbar is connected to the input end of the second 10 return wire cabinet through a feeder, the third 10kV busbar is connected to the input end of the third 10 return wire cabinet through a feeder, the fourth 10kV busbar is connected to the input end of the fourth 10 return wire cabinet through a feeder, the fifth 10kV busbar is connected to the input end of the fifth 10 return wire cabinet through a feeder, the sixth 10kV busbar is connected to the input end of the sixth 10 return wire cabinet through a feeder, the seventh 10kV busbar is connected to the input end of the seventh 10 return wire cabinet through a feeder, and the eighth 10kV busbar is connected to the input end of the eighth 10 return wire cabinet through a feeder.
In a specific embodiment, the capacity ratio of the first double low voltage bushing main transformer, the second double low voltage bushing main transformer, the third double low voltage bushing main transformer, and the fourth double low voltage bushing main transformer is 240:240:160MVA.
In a specific embodiment, the rated current of the low-voltage windings of the first double-low-voltage bushing main transformer, the second double-low-voltage bushing main transformer, the third double-low-voltage bushing main transformer and the fourth double-low-voltage bushing main transformer is 8000A, and the rated current of each low-voltage bushing is 4000A.
In a specific embodiment, the first 10kV bus is connected to the first capacitor through a fifteenth circuit breaker and a circuit, the second 10kV bus is connected to the second capacitor through a sixteenth circuit breaker and a circuit, the third 10kV bus is connected to the third capacitor through a seventeenth circuit breaker and a circuit, the fourth 10kV bus is connected to the fourth capacitor through an eighteenth circuit breaker and a circuit, the fifth 10kV bus is connected to the fifth capacitor through a nineteenth circuit breaker and a circuit, the sixth 10kV bus is connected to the sixth capacitor through a twenty-first circuit breaker and a circuit, the seventh 10kV bus is connected to the seventh capacitor through a twenty-first circuit breaker and a circuit, and the eighth 10kV bus is connected to the eighth capacitor through a twenty-second circuit breaker and a circuit.
In a specific embodiment, the first double low voltage bushing main transformer, the second double low voltage bushing main transformer, the third double low voltage bushing main transformer and the fourth double low voltage bushing main transformer are all SFSZ11-240000/220.
The embodiment of the invention has the beneficial effects that: the main transformers of the transformer substation adopt double low-voltage sleeve transformers, two low-voltage sleeves of each main transformer are connected in parallel on the low-voltage side of the transformer, each transformer is output for 2 times from the low-voltage side, each bus is input into one section, a double bus wiring is formed, and each section of bus is respectively connected with 10 times of 10kV outgoing lines. According to the invention, by increasing the number of low-voltage outgoing lines, the power supply capacity of the low-voltage side is improved, the power supply capacity of the 220kV transformer substation is expanded, the connection of a 220kV network and the guarantee of 110kV network power supply capacity are both considered, and meanwhile, sufficient power supply can be provided for peripheral loads. In addition, through the construction of the transformer substation, the number of distribution points of the transformer substation in the urban central area can be reduced, and the power grid structure and investment planning are optimized.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a simple circuit diagram of a substation in the prior art;
FIG. 2 is a circuit diagram of a substation according to an embodiment of the present invention;
FIG. 3 is a junction diagram of a dual low voltage bushing transformer of a substation according to an embodiment of the invention;
fig. 4 is another coupling diagram of a dual low voltage bushing transformer of a substation according to an embodiment of the invention.
Detailed Description
The following description of embodiments refers to the accompanying drawings, which illustrate specific embodiments in which the invention may be practiced.
Referring to fig. 2, a 220kV transformer substation is provided in a first embodiment of the present invention, including a first dual low voltage bushing main transformer #1, a second dual low voltage bushing main transformer #2, a third dual low voltage bushing main transformer #3, and a fourth dual low voltage bushing main transformer #4, the 10kV side of the first dual low voltage bushing main transformer #1 is connected to a first 10kV busbar 1AM through a first circuit breaker and a line, the 10kV side of the first dual low voltage bushing main transformer #1 is also connected to a second 10kV busbar 1BM through a second circuit breaker and a line, the 10kV side of the second dual low voltage bushing main transformer #2 is connected to a third 10kV busbar 2AM through a third circuit breaker and a line, the 10kV side of the second dual low voltage bushing main transformer #2 is also connected to a fourth 10kV busbar 2BM through a fourth circuit breaker and a line, the 10kV side of the third dual low voltage bushing main transformer #3 is connected to a fifth 10kV busbar 3 through a fifth circuit breaker and a fifth circuit breaker, the 10kV side of the third double-low-voltage sleeve main transformer #3 is also connected with a sixth 10kV bus 3BM through a sixth breaker and a circuit, the 10kV side of the fourth double-low-voltage sleeve main transformer #4 is connected with a seventh 10kV bus 4AM through a seventh breaker and a circuit, the 10kV side of the fourth double-low-voltage sleeve main transformer #4 is also connected with an eighth 10kV bus 4BM through an eighth breaker and a circuit, the first 10kV bus 1AM is connected with a third 10kV bus 2AM through a ninth breaker and a connecting line, the third 10kV bus 2AM is connected with a fifth 10kV bus 3AM through a tenth breaker and a connecting line, the fifth 10kV bus 3AM is connected with a seventh 10kV4AM bus through an eleventh breaker and a connecting line, the second 10kV bus 1BM is connected with a fourth 10kV bus 2BM through a twelfth breaker and a connecting line, the fourth 10kV busbar 2BM is connected with the sixth 10kV busbar 3BM through a thirteenth circuit breaker and a connecting wire, and the sixth 10kV busbar 3BM is connected with the eighth 10kV busbar 4BM through a fourteenth circuit breaker and a connecting wire.
The double low voltage sleeve transformer is a three-winding transformer with single low voltage winding and double low voltage sleeve. The conventional three-winding transformer is respectively provided with a group of high-voltage windings, medium-voltage windings, low-voltage windings and sleeves, so that the transformer is connected with three different voltages. In a specific embodiment, the double-low-voltage sleeve transformer is characterized in that a group of low-voltage sleeves are connected to the low-voltage winding in the conventional three-winding transformer, so that the effect of shunting is achieved, and the aim of capacity increment of the low-voltage winding is fulfilled. Fig. 3 shows a junction diagram of a double low voltage bushing transformer, wherein 1 is a high voltage winding junction portion, 2 is a medium voltage winding junction portion, 3 is a low voltage winding junction portion, O is a neutral point at the high voltage winding junction portion, A, B, C is a three-phase connection point, om is a neutral point at the medium voltage winding junction portion, am, bm, cm are three-phase connection points, and at the low voltage winding junction portion it comprises two sets of three-phase connection points, c1, b1, a1 and c2, b2, a2, respectively. On the basis of a conventional transformer, a group of low-voltage bushings are connected in parallel, namely, a group of low-voltage windings are matched with two groups of low-voltage bushings, so that rated current of the low-voltage windings is 8000A, rated current of the low-voltage bushings is 4000A, and other parameters are the same as those of the conventional transformer.
In another embodiment, fig. 4 shows another structural connection diagram of a dual low voltage bushing transformer, the transformer is a split winding transformer, the split winding transformer has one set of high voltage winding, medium voltage winding and two sets of low voltage winding, and correspondingly has one set of high voltage winding, medium voltage winding and two sets of low voltage winding, three-phase ends of the two sets of low voltage winding are a1, b1, c1 and a2, b2, c2 respectively.
Referring to fig. 2, the first 10kV busbar 1AM is connected with the input end of the first 10 return wire outlet cabinet through a feeder, the second 10kV busbar 1BM is connected with the input end of the second 10 return wire outlet cabinet through a feeder, the third 10kV busbar 2AM is connected with the input end of the third 10 return wire outlet cabinet through a feeder, the fourth 10kV busbar 2BM is connected with the input end of the fourth 10 return wire outlet cabinet through a feeder, the fifth 10kV busbar 3AM is connected with the input end of the fifth 10 return wire outlet cabinet through a feeder, the sixth 10kV busbar 3BM is connected with the input end of the sixth 10 return wire outlet cabinet through a feeder, the seventh 10kV busbar 4AM is connected with the input end of the seventh 10 return wire outlet cabinet through a feeder, and the eighth 10kV busbar 4BM is connected with the input end of the eighth 10 return wire outlet cabinet through a feeder.
In a specific embodiment, the main transformer of the transformer substation is 4x240MVA or 4x180MVA,220kV outgoing 6 return, 110kV outgoing 14 return, 10kV outgoing 80 return. 220kV adopts double buses or double bus double-section wiring, 110kV adopts double bus double-section wiring, and 10kV adopts double bus section wiring. Each transformer is provided with 2 times of low-voltage side outlet and one section of bus, each section of bus is provided with 10 times of 10kV outlet, so that double-bus wiring is formed, and circuit breaker sections are adopted among the 4 main transformer low-voltage side buses, so that double-bus section wiring is formed. The total of 8 sections of buses are arranged in the 4 main transformers, and each section of bus is respectively connected with 10-circuit 10kV outgoing lines, so that the total of 80-circuit 10kV outgoing lines is greatly improved compared with the 30-circuit outgoing lines of a typical transformer substation.
In one embodiment, the main transformer is SFSZ11-240000/220, and the capacity ratio is 240:240:160MVA (i.e., 100:100:66.6), 8000A of rated current of low-voltage winding, 4000A of rated current of low-voltage bushing, and other parameters are the same as those of a conventional transformer.
As shown in fig. 2, the first 10kV busbar 1AM is connected to the first capacitor c1 through a fifteenth breaker and line, the second 10kV busbar 1BM is connected to the second capacitor c2 through a sixteenth breaker and line, the third 10kV busbar 2AM is connected to the third capacitor c3 through a seventeenth breaker and line, the fourth 10kV busbar 2BM is connected to the fourth capacitor c4 through an eighteenth breaker and line, the fifth 10kV busbar 3AM is connected to the fifth capacitor c5 through a nineteenth breaker and line, the sixth 10kV busbar 3BM is connected to the sixth capacitor c6 through a twentieth breaker and line, the seventh 10kV busbar 4AM is connected to the seventh capacitor c7 through a twenty-first breaker and line, and the eighth 10kV busbar 4BM is connected to the eighth capacitor c8 through a twenty-second breaker and line.
As shown in fig. 2, the first 10kV busbar 1AM is further connected to the first PT cabinet PT1, the second 10kV busbar 1BM is further connected to the second PT cabinet PT2, the third 10kV busbar 2AM is further connected to the third PT cabinet PT3, the fourth 10kV busbar 2BM is further connected to the fourth PT cabinet PT4, the fifth 10kV busbar 3AM is further connected to the fifth PT cabinet PT5, the sixth 10kV busbar 3BM is further connected to the sixth PT cabinet PT6, the seventh 10kV busbar 4AM is further connected to the seventh PT cabinet PT7, and the eighth 10kV busbar 4BM is further connected to the eighth PT cabinet PT 8.
As shown in fig. 2, the first to eighth 10kV buses are also correspondingly connected to the ground GND1 to GND 8.
The transformer substation comprises a first double-low-voltage sleeve transformer, a second double-low-voltage sleeve transformer, a third double-low-voltage sleeve transformer and a fourth double-low-voltage sleeve transformer, wherein two low-voltage sleeves of each main transformer are connected in parallel to the low-voltage side of the transformer, the low-voltage side of each transformer is output for 2 times, each bus is connected in one section to form a double-bus wiring, and each bus is connected with 10 times of 10kV outgoing lines. According to the embodiment of the invention, the number of low-voltage outgoing lines is increased, the power supply capacity of a low-voltage side is improved, the power supply capacity of a 220kV transformer substation is expanded, the connection of a 220kV network and the protection of 110kV network power supply capacity are both considered, and meanwhile, sufficient power supply can be provided for peripheral loads. In addition, through the construction of the transformer substation, the number of distribution points of the transformer substation in the urban central area can be reduced, and the power grid structure and investment planning are optimized.
The foregoing disclosure is illustrative of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.
Claims (6)
1. A220 kV transformer substation is characterized by comprising a first double-low-voltage bushing main transformer, a second double-low-voltage bushing main transformer, a third double-low-voltage bushing main transformer and a fourth double-low-voltage bushing main transformer, wherein two double-low-voltage bushings of the first double-low-voltage bushing main transformer are connected in parallel to the 10kV side of the first double-low-voltage bushing main transformer, two double-low-voltage bushings of the second double-low-voltage bushing main transformer are connected in parallel to the 10kV side of the second double-low-voltage bushing main transformer, two double-low-voltage bushings of the third double-low-voltage bushing main transformer are connected in parallel to the 10kV side of the third double-low-voltage bushing main transformer, two double-low-voltage bushings of the fourth double-low-voltage bushing main transformer are connected in parallel to the 10kV side of the fourth double-low-voltage bushing main transformer, the 10kV side of the first double-low-voltage bushing main transformer is connected with a first 10kV bus bar through a first breaker and a circuit, the 10kV side of the first double-low-voltage sleeve main transformer is also connected with a second 10kV bus through a second breaker and a circuit, the 10kV side of the second double-low-voltage sleeve main transformer is connected with a third 10kV bus through a third breaker and a circuit, the 10kV side of the second double-low-voltage sleeve main transformer is also connected with a fourth 10kV bus through a fourth breaker and a circuit, the 10kV side of the third double-low-voltage sleeve main transformer is connected with a fifth 10kV bus through a fifth breaker and a circuit, the 10kV side of the third double-low-voltage sleeve main transformer is also connected with a sixth 10kV bus through a sixth breaker and a circuit, the 10kV side of the fourth double-low-voltage sleeve main transformer is connected with a seventh 10kV bus through a seventh breaker and a circuit, the 10kV side of the fourth double-low-voltage sleeve main transformer is also connected with an eighth 10kV bus through an eighth breaker and a circuit, the first 10kV bus is connected with a third 10kV bus through a ninth circuit breaker and a connecting wire, the third 10kV bus is connected with a fifth 10kV bus through a tenth circuit breaker and a connecting wire, the fifth 10kV bus is connected with a seventh 10kV bus through an eleventh circuit breaker and a connecting wire, the second 10kV bus is connected with a fourth 10kV bus through a twelfth circuit breaker and a connecting wire, the fourth 10kV bus is connected with a sixth 10kV bus through a thirteenth circuit breaker and a connecting wire, and the sixth 10kV bus is connected with an eighth 10kV bus through a fourteenth circuit breaker and a connecting wire.
2. The substation according to claim 1, characterized in that:
the first 10kV bus is connected with the input end of the first 10-return wire outlet cabinet through a feeder, the second 10kV bus is connected with the input end of the second 10-return wire outlet cabinet through a feeder, the third 10kV bus is connected with the input end of the third 10-return wire outlet cabinet through a feeder, the fourth 10kV bus is connected with the input end of the fourth 10-return wire outlet cabinet through a feeder, the fifth 10kV bus is connected with the input end of the fifth 10-return wire outlet cabinet through a feeder, the sixth 10kV bus is connected with the input end of the sixth 10-return wire outlet cabinet through a feeder, the seventh 10kV bus is connected with the input end of the seventh 10-return wire outlet cabinet through a feeder, and the eighth 10kV bus is connected with the input end of the eighth 10-return wire outlet cabinet through a feeder.
3. A substation according to claim 2, characterized in that:
the capacity ratio of the first double-low-voltage bushing main transformer, the second double-low-voltage bushing main transformer, the third double-low-voltage bushing main transformer and the fourth double-low-voltage bushing main transformer is 240:240:160MVA.
4. A substation according to claim 3, characterized in that:
the rated currents of the low-voltage windings of the first double-low-voltage sleeve main transformer, the second double-low-voltage sleeve main transformer, the third double-low-voltage sleeve main transformer and the fourth double-low-voltage sleeve main transformer are 8000A, and the rated current of each low-voltage sleeve is 4000A.
5. The substation according to claim 4, characterized in that:
the first 10kV bus is connected with the first capacitor through a fifteenth breaker and a circuit, the second 10kV bus is connected with the second capacitor through a sixteenth breaker and a circuit, the third 10kV bus is connected with the third capacitor through a seventeenth breaker and a circuit, the fourth 10kV bus is connected with the fourth capacitor through an eighteenth breaker and a circuit, the fifth 10kV bus is connected with the fifth capacitor through a nineteenth breaker and a circuit, the sixth 10kV bus is connected with the sixth capacitor through a twentieth breaker and a circuit, the seventh 10kV bus is connected with the seventh capacitor through a twenty first breaker and a circuit, and the eighth 10kV bus is connected with the eighth capacitor through a twenty second breaker and a circuit.
6. The substation according to claim 5, characterized in that:
the types of the first double-low-voltage sleeve main transformer, the second double-low-voltage sleeve main transformer, the third double-low-voltage sleeve main transformer and the fourth double-low-voltage sleeve main transformer are SFSZ11-240000/220.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011533152.XA CN112653144B (en) | 2020-12-22 | 2020-12-22 | 220kV transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011533152.XA CN112653144B (en) | 2020-12-22 | 2020-12-22 | 220kV transformer substation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112653144A CN112653144A (en) | 2021-04-13 |
| CN112653144B true CN112653144B (en) | 2023-06-09 |
Family
ID=75359500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011533152.XA Active CN112653144B (en) | 2020-12-22 | 2020-12-22 | 220kV transformer substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112653144B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113611497A (en) * | 2021-07-23 | 2021-11-05 | 深圳供电局有限公司 | 220kV transformer low-voltage side double-branch outgoing line structure and method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004512794A (en) * | 2000-10-20 | 2004-04-22 | アルストム | Hybrid high-voltage substation with buses placed opposite each other and a shielded break-off module for such a high-voltage substation |
| CN104218460A (en) * | 2014-09-18 | 2014-12-17 | 中国能源建设集团广东省电力设计研究院 | 220kv side wiring structure of 500kv high capacity transformer station |
-
2020
- 2020-12-22 CN CN202011533152.XA patent/CN112653144B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004512794A (en) * | 2000-10-20 | 2004-04-22 | アルストム | Hybrid high-voltage substation with buses placed opposite each other and a shielded break-off module for such a high-voltage substation |
| CN104218460A (en) * | 2014-09-18 | 2014-12-17 | 中国能源建设集团广东省电力设计研究院 | 220kv side wiring structure of 500kv high capacity transformer station |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112653144A (en) | 2021-04-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109347134B (en) | Bipolar flexible direct-current power grid polar line electric main wiring system and online maintenance method | |
| CN112653144B (en) | 220kV transformer substation | |
| Neumann | Superconducting fault current limiter (SFCL) in the medium and high voltage grid | |
| CN108736360A (en) | A kind of integration loaded capacity regulating voltage regulating power distribution station | |
| Kalyuzhny | Switching capacitor bank back-to-back to underground cables | |
| WO2005004299A1 (en) | Superconductor current limiting system and method | |
| CN211351263U (en) | 110kV transformer substation main wiring structure applying split transformer | |
| CN212485806U (en) | Main wiring structure of transformer substation | |
| CN112688329B (en) | 220kV transformer substation | |
| Lauria et al. | Shunt compensation of EHV cables and mixed overhead-cable lines | |
| CN111181012A (en) | 110kV transformer substation main wiring structure applying split transformer | |
| Cerretti et al. | Temporary overvoltages due to ground faults in MV networks | |
| CN111668783B (en) | Special-shaped HGIS equipment, electrical main wiring and transformer substation | |
| CN210957782U (en) | 35kV transformer substation sectional bus system based on mixed superconducting current limiter | |
| RU117732U1 (en) | HIGH VOLTAGE DISTRIBUTION DEVICE | |
| Pfeifer et al. | Characteristics of a mixed 100-km EHV transmission line with shunt compensation for various topologies | |
| CN215528200U (en) | 220KV open-type reverse outgoing line arrangement structure | |
| Puharic et al. | Overvoltage analysis on submarine cables of atmospheric origin and due to switching operations | |
| CN218352256U (en) | Power standby power supply circuit for extra-high voltage converter station | |
| CN204967265U (en) | Electric system of transformer substation | |
| CN108281917B (en) | Extra-high voltage alternating current transformer substation and design method thereof | |
| CN111864551B (en) | Main wiring structure of transformer substation | |
| CN219760641U (en) | Power supply apparatus | |
| CN210608549U (en) | Box-type substation distribution system | |
| CN220042997U (en) | Power supply system of data center and data center |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |