CN212810866U - 66kV transformer substation construction transition confluence device - Google Patents
66kV transformer substation construction transition confluence device Download PDFInfo
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- CN212810866U CN212810866U CN202021282855.5U CN202021282855U CN212810866U CN 212810866 U CN212810866 U CN 212810866U CN 202021282855 U CN202021282855 U CN 202021282855U CN 212810866 U CN212810866 U CN 212810866U
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- transformer
- transformer substation
- construction transition
- busbar
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Abstract
The utility model relates to a transformer substation construction transition field provides a 66kV transformer substation construction transition confluence device very much, will converge busbar and link to each other with transformer secondary binding post, is connected to main secondary cable one by one again and converges busbar on, solves the problem that transformer secondary and portable looped netowrk cabinet can't use the cable directly to link to each other, realizes that the whole loads of construction transition of heavy load transformer substation reconstruction and expansion engineering are substituted and send, reduces the operational risk of system.
Description
Technical Field
The utility model relates to a transformer substation construction transition field provides a 66kV transformer substation construction transition confluence device very much.
Background
In order to meet the problems of increasing of power load, promoting of economic development, improvement of electric energy quality, enhancement of power supply reliability, elimination of noise and environmental pollution and the like, a transformer substation needs to be expanded or modified.
At present, in most of extension projects of 66kV transformer substations, because the power failure time of the projects is long, the loads of the transformer substations cannot be allocated, and basically, the projects are transited in a mode of renting transformers and movable ring main units.
Some substations are central substations, 10kV outgoing feeder lines are more and important in load, some outgoing feeder lines are special lines, all loads need to be transmitted instead in the transition period, the section of a main secondary cable is large due to overlarge load current, the number of required cables is large, but the size of a secondary wiring terminal of the transformer is limited, therefore, the problem that the secondary of the transformer can not be directly connected with the movable ring main unit by using a cable is caused, the traditional mode generally adopts a load reversing mode to transfer part of the load of the transformer substation to other transformer substations for transmission instead through a connecting line, because not all substations have tie lines with other substations, partial load transfer is realized in a load reversing mode, operation and maintenance personnel are required to carry out a large amount of switching operations to influence the safe and stable operation of the system, and the safe and stable operation of the tie substations can also be influenced.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, the utility model provides a 66kV transformer substation construction transition confluence device, which is arranged on a transformer and connected with a wiring board of the transformer, and comprises a bus bridge, wherein the bus bridge comprises at least 3 supporting channel steels which are vertically distributed in parallel and fixed on an equipment bracket; the bus bridge is provided with 3 bus bars vertical to the channel steel in the horizontal direction, the 3 bus bars are mutually matched with three-phase power of an alternating current power supply, and each of a, b and c is connected with one bus bar; each busbar is provided with at least 4 wiring terminals.
Furthermore, a bus expansion joint is connected between the 3 bus bars and the wiring board, and the bus expansion joint is fixedly connected with the wiring board and the 3 bus bars through bolts respectively.
Furthermore, a bus bridge post insulator is arranged at the supporting position of the channel steel of the bus bridge and the busbar.
Furthermore, the bus bar is a TMY-3X 125X 10 copper bar.
The utility model has the advantages that: the bus bar is connected with the secondary wiring terminal of the transformer, and the main and secondary cables are connected to the bus bar one by one, so that the problem that the secondary of the transformer cannot be directly connected with the movable ring main unit through the cables is solved, the construction transition whole load transmission of heavy-load substation reconstruction and extension engineering is realized, and the system operation risk is reduced.
Drawings
Fig. 1 is a schematic diagram of the position of the transformer and the present invention;
fig. 2 is a schematic top view of the present invention;
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, the utility model provides a 66kV substation construction transition confluence device, which is arranged on a transformer and connected with a wiring board of the transformer, and comprises a bus bar bridge, wherein the bus bar bridge comprises at least 3 supporting channel steel 1 which are vertically distributed in parallel, and the supporting channel steel 1 is fixed on an equipment bracket; 3 bus bars 2 vertical to the supporting channel steel 1 are arranged in the horizontal direction of the bus bar bridge, and the bus bars 2 adopt TMY-3 multiplied by 125 multiplied by 10 copper bars. The three phases of the 3 copper bars are matched with the three phases of the alternating current power supply, and a, b and c are connected with a busbar 2; each copper bar is provided with at least 4 wiring terminals 6. The number of the connecting terminals 6 is determined according to the main transformer capacity, the secondary maximum load current of a 50MAV main transformer is 2750A (the overload of the main transformer is not considered), 4 3 × 400 copper cables are adopted to meet the current-carrying capacity requirement, and 12 connecting terminals 6 are arranged on each phase.
A bus expansion joint 4 is connected between the 3 bus bars 2 and the wiring board 3, and the bus expansion joint 4 is respectively fixedly connected with the wiring board 4 and the 3 bus bars 2 through bolts. The bus expansion joint is added to compensate the displacement change caused by expansion and contraction, installation error and the like; while at the same time balancing the stresses that may occur in the post insulators.
And bus bridge post insulators 5 are arranged at the connecting and supporting positions of the supporting channel steel 1 and the 3 copper bars of the bus bridge. The post insulator can support and fix the current-carrying conductor; the current carrying conductor may be insulated from ground; current carrying conductors at different potentials in the device can be insulated from each other.
And connecting the busbar with a secondary wiring terminal of the transformer, connecting the main and secondary cables to the busbar one by one, and connecting the other end of the secondary current with a cable of the movable ring main unit. The problem that the secondary of the transformer and the movable ring main unit cannot be directly connected by using a cable is solved, the construction transition of heavy-load substation reconstruction and extension projects is realized, and the running risk of the system is reduced.
The three phases of the cable 7 are connected to the wiring terminals on the three copper bars respectively, the three copper bars are connected with the bus expansion joint, the bus expansion joint is connected with the wiring board, the current on the main transformer is transmitted to the cable through the wiring board, the bus expansion joint, the copper bars and the wiring terminals, and the cable is connected with the ring main unit to realize the current transmission.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (4)
1. The utility model provides a 66kV transformer substation construction transition collection flow device, sets up on the transformer, is connected its characterized in that with the wiring board of transformer: the device comprises a bus bridge, wherein the bus bridge comprises at least 3 supporting channel steel which are vertically distributed in parallel, and the supporting channel steel is fixed on an equipment bracket; be equipped with 3 and the channel-section steel is vertically busbar on this generating line bridge horizontal direction, 3 busbar and alternating current power supply three phase electricity match each other, are equipped with 4 at least binding post on every busbar.
2. The construction transition bus device for the 66kV transformer substation as claimed in claim 1, wherein: and a bus expansion joint is connected between the 3 bus bars and the wiring board, and the bus expansion joint is fixedly connected with the wiring board and the 3 bus bars through bolts respectively.
3. The construction transition bus device for the 66kV transformer substation as claimed in claim 1, wherein: and a bus bridge post insulator is arranged at the supporting position of the channel steel of the bus bridge and the bus bar.
4. The construction transition bus device for the 66kV transformer substation as claimed in claim 1, wherein: the bus bar is a TMY-3X 125X 10 copper bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021282855.5U CN212810866U (en) | 2020-07-03 | 2020-07-03 | 66kV transformer substation construction transition confluence device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021282855.5U CN212810866U (en) | 2020-07-03 | 2020-07-03 | 66kV transformer substation construction transition confluence device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212810866U true CN212810866U (en) | 2021-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021282855.5U Active CN212810866U (en) | 2020-07-03 | 2020-07-03 | 66kV transformer substation construction transition confluence device |
Country Status (1)
| Country | Link |
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| CN (1) | CN212810866U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114498313A (en) * | 2022-02-09 | 2022-05-13 | 广东韶钢松山股份有限公司 | Flexible connecting bus bridge and switch cabinet transitional connection method |
-
2020
- 2020-07-03 CN CN202021282855.5U patent/CN212810866U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114498313A (en) * | 2022-02-09 | 2022-05-13 | 广东韶钢松山股份有限公司 | Flexible connecting bus bridge and switch cabinet transitional connection method |
| CN114498313B (en) * | 2022-02-09 | 2023-02-03 | 广东韶钢松山股份有限公司 | Flexible connecting bus bridge and switch cabinet transitional connection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 114000 No.1, section 3, Huigong street, Shenhe District, Shenyang City, Liaoning Province Patentee after: Liaoning Zhengxin Electric Power Design Co.,Ltd. Address before: No. 33 Nansheng Road, Tiedong District, Anshan City, Liaoning Province, 114000 Patentee before: ANSHAN ELECTRIC POWER SURVEY & DESIGN INSTITUTE |
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| CP03 | Change of name, title or address |