CN203415839U - Arrangement structure of main transformer low voltage side inlet wire and general inlet wire - Google Patents
Arrangement structure of main transformer low voltage side inlet wire and general inlet wire Download PDFInfo
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- CN203415839U CN203415839U CN201320497002.7U CN201320497002U CN203415839U CN 203415839 U CN203415839 U CN 203415839U CN 201320497002 U CN201320497002 U CN 201320497002U CN 203415839 U CN203415839 U CN 203415839U
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- inlet wire
- main transformer
- transformer low
- wire
- pressure side
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Abstract
The utility model provides an arrangement structure of a main transformer low voltage side inlet wire and a general inlet wire, relates to the field of ultrahigh voltage electric power transmission, and solves problems that a conventional inlet wire general loop and a branch bus are arranged on one wire so that a larger ground area is occupied, and whole arrangement of a transformer station is not facilitated. The structure comprises a main transformer low voltage side bus bar, an inlet wire general loop and the branch bus. The main transformer low voltage side bus bar and the branch bus present to be "T"-shaped in arrangement. One end of the inlet wire general loop is connected with the main transformer low voltage side bus bar, and the other end of the inlet wire general loop is connected with the branch bus. The arrangement structure has outstanding advantages of being more economical in land occupation, suitable for optimizing general plane arrangement of the transformer station and great in economic benefits.
Description
Technical field
The utility model relates to extra-high voltage electric power transmission field, especially relates to the arrangement of a kind of main transformer low-pressure side inlet wire and total input-wire.
Background technology
The main transformer of 500kV transformer station or 750kV transformer station adopts single-phase autotransformer, and the low pressure 35kV of every group of main transformer or 66kV side need realize by bus rod " D " and connect.The maximum rated current of the equipment such as 35kV and 66kV circuit breaker and isolating switch is 4000A, and much smaller than the rated current of main transformer low-pressure side, so 35kV or 66kV side need arrange branch bar.Main transformer low pressure 35kV or 66kV side adopt the connection plan of total bus rod 1+ multiple-limb bus 3, and each branch bar wire inlet loop, refills and establish reactive power compensator under each branch bar.
The inlet wire total loop of current China 500kV transformer station or 750kV transforming plant main transformer low pressure 35kV or 66kV side branch bar, inlet wire total loop 2 and the branch bars 3 of adopting are arranged in a mode on line more, as shown in Figure 2, this arrangement can occupy larger floor area, is unfavorable for transformer station's integral arrangement.
Summary of the invention
The purpose of this utility model is: the problem existing for prior art, and provide a kind of and more save and take up an area, be conducive to optimize the general layout of transformer station, there is the main transformer low-pressure side inlet wire of good economic benefit and the arrangement of total input-wire.
The purpose of this utility model is achieved through the following technical solutions:
The arrangement of a kind of main transformer low-pressure side inlet wire and total input-wire, it is characterized in that, this structure comprises main transformer low-pressure side bus rod, inlet wire total loop and branch bar, described main transformer low-pressure side bus rod and branch bar are that " T " font is arranged, one end of described inlet wire total loop connects main transformer low-pressure side bus rod, and the other end of inlet wire total loop connects branch bar.
Preferably, described inlet wire total loop and branch bar is arranged in parallel.
Preferably, described inlet wire total loop comprises isolating switch, circuit breaker summation current transformer, and one end of described isolating switch connects main transformer low-pressure side bus rod, and the other end of isolating switch is connected successively after circuit breaker, current transformer and is connected to branch bar.
Preferably, described inlet wire total loop also comprises that isolating switch, circuit breaker summation current transformer connect the wire of use, and this wire is flexible conductor.
Preferably, described inlet wire total loop also comprises the post insulator for the wire of support and connection current transformer and branch bar.
Preferably, described main transformer low-pressure side bus rod is stay pipe bus.
Preferably, described branched pipe bus is stay pipe bus.
Compared with prior art, the utlity model has following advantage:
The utility model is arranged in parallel inlet wire total loop and branch bar, it is arranged in a mode on line than conventional inlet wire total loop and branch bar, the distance of bus rod b phase and branch bar post insulator is reduced to 5.5m by 13m, more save and take up an area, be conducive to optimize the general layout of transformer station, there is good economic benefit.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the arrangement of traditional main transformer low-pressure side inlet wire and total input-wire.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
embodiment
As shown in Figure 1: the arrangement of a kind of main transformer low-pressure side inlet wire and total input-wire, this structure comprises main transformer low-pressure side bus rod 1, inlet wire total loop 2 and branch bar 3, main transformer low pressure is 35kV or 66kV.Main transformer low-pressure side bus rod 1 is comprised of a phase line, b phase line, c phase line and n line.Main transformer low-pressure side bus rod 1 and branch bar 3 are arranged (being that both move towards perpendicular) for " T " font, and the distance of the b phase line of main transformer low-pressure side bus rod 1 and the post insulator of branch bar 3 is 5.5m.Inlet wire total loop 2 is arranged in parallel with branch bar 3, and this inlet wire total loop 2 comprises that isolating switch 21,23, three equipment of circuit breaker 22 summation current transformer also select the equipment of 35kV or 66kV accordingly.One end of isolating switch 21 connects main transformer low-pressure side bus rod 1, and the other end of isolating switch 21 is connected successively after circuit breaker 22, current transformer 23 and is connected to branch bar.Every phase line of main transformer low-pressure side bus rod 1 is all connected to by one group of isolating switch, circuit breaker summation current transformer the phase line that branch bar is corresponding.Between the equipment of inlet wire total loop 1 (comprising isolating switch, circuit breaker summation current transformer), line adopts flexible conductor.Inlet wire total loop 1 also comprises the post insulator 24 for the wire of support and connection current transformer 23 and branch bar 3, and inlet wire total loop 2 adopts and transfers by post insulator 24 right angles with branch bar 3, to realize the mode of wiring.Main transformer low-pressure side bus rod and branched pipe bus all can adopt stay pipe bus.
Through optimizing, the utility model is arranged in a mode on line with conventional inlet wire total loop and branch bar and compares, the distance of the b phase line of main transformer low-pressure side bus rod 1 and the post insulator of branch bar is reduced to 5.5m by 13m, the floor space in 35kV or 66kV region be can reduce, and installation, operation, the maintenance of equipment do not affected.In addition, the utility model also has easy-to-connect, arranges regularly, and can obtain excellent achievement and good benefit, for follow-up EHV transmission engineering has important reference and reference.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; it should be pointed out that all any modifications of doing within spirit of the present utility model and principle, be equal to replacement and improvement etc., within all should being included in protection range of the present utility model.
Claims (7)
1. the arrangement of a main transformer low-pressure side inlet wire and total input-wire, it is characterized in that, this structure comprises main transformer low-pressure side bus rod, inlet wire total loop and branch bar, described main transformer low-pressure side bus rod and branch bar are that " T " font is arranged, one end of described inlet wire total loop connects main transformer low-pressure side bus rod, and the other end of inlet wire total loop connects branch bar.
2. the arrangement of a kind of main transformer low-pressure side inlet wire according to claim 1 and total input-wire, is characterized in that, described inlet wire total loop and branch bar are arranged in parallel.
3. the arrangement of a kind of main transformer low-pressure side inlet wire according to claim 1 and 2 and total input-wire, it is characterized in that, described inlet wire total loop comprises isolating switch, circuit breaker summation current transformer, one end of described isolating switch connects main transformer low-pressure side bus rod, and the other end of isolating switch is connected successively after circuit breaker, current transformer and is connected to branch bar.
4. the arrangement of a kind of main transformer low-pressure side inlet wire according to claim 3 and total input-wire, is characterized in that, described inlet wire total loop also comprises that isolating switch, circuit breaker summation current transformer connect the wire of use, and this wire is flexible conductor.
5. the arrangement of a kind of main transformer low-pressure side inlet wire according to claim 3 and total input-wire, is characterized in that, described inlet wire total loop also comprises the post insulator for the wire of support and connection current transformer and branch bar.
6. the arrangement of a kind of main transformer low-pressure side inlet wire according to claim 1 and total input-wire, is characterized in that, described main transformer low-pressure side bus rod is stay pipe bus.
7. the arrangement of a kind of main transformer low-pressure side inlet wire according to claim 1 and total input-wire, is characterized in that, described branched pipe bus is stay pipe bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320497002.7U CN203415839U (en) | 2013-08-14 | 2013-08-14 | Arrangement structure of main transformer low voltage side inlet wire and general inlet wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320497002.7U CN203415839U (en) | 2013-08-14 | 2013-08-14 | Arrangement structure of main transformer low voltage side inlet wire and general inlet wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203415839U true CN203415839U (en) | 2014-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320497002.7U Expired - Lifetime CN203415839U (en) | 2013-08-14 | 2013-08-14 | Arrangement structure of main transformer low voltage side inlet wire and general inlet wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203415839U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107658701A (en) * | 2016-07-25 | 2018-02-02 | 国网浙江省电力公司经济技术研究院 | Single-column double-bus is arranged vertically structure back-to-back |
-
2013
- 2013-08-14 CN CN201320497002.7U patent/CN203415839U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107658701A (en) * | 2016-07-25 | 2018-02-02 | 国网浙江省电力公司经济技术研究院 | Single-column double-bus is arranged vertically structure back-to-back |
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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 |
Owner name: CHINA POWER ENGINEERING CONSULTING GROUP SOUTHWEST Free format text: FORMER NAME: SOUTHWEST ELECTRIC POWER DESIGN INSTITUTE OF CHINA POWER ENGINEERING CONSULTING GROUP CORPORATION |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 610021 Dongfeng Road, Chengdu, Sichuan, No. 18, No. Patentee after: Southwest Electric Power Design Institute CO., Ltd. of China Power Engineering Consulting Group Address before: 610021 Dongfeng Road, Chengdu, Sichuan, No. 18, No. Patentee before: SOUTHWEST ELECTRIC POWER DESIGN INSTITUTE OF CHINA POWER ENGINEERING CONSULTING Group Corp. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140129 |