CN210490538U - Power supply structure suitable for coastal tourism area - Google Patents
Power supply structure suitable for coastal tourism area Download PDFInfo
- Publication number
- CN210490538U CN210490538U CN201921365769.8U CN201921365769U CN210490538U CN 210490538 U CN210490538 U CN 210490538U CN 201921365769 U CN201921365769 U CN 201921365769U CN 210490538 U CN210490538 U CN 210490538U
- Authority
- CN
- China
- Prior art keywords
- switch
- power supply
- transformer substation
- transformer
- structure suitable
- 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.)
- Expired - Fee Related
Links
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 238000005457 optimization Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The utility model relates to a power supply structure suitable for coastal tourism district, including first transformer substation, second transformer substation and third transformer substation, first transformer substation, all be connected with in-station feeder power supply unit on second transformer substation and the third transformer substation, first transformer substation, the second transformer substation, all be connected with the contact switch between third transformer substation and the in-station feeder power supply unit, be connected with between the adjacent two transformer substations feeder power supply unit, when the longest distance of the regional minor face of supplying power is greater than twice transformer substation's power supply radius, be the zigzag between the three transformer substations and arrange, when the longest distance of the regional minor face of supplying power is less than twice transformer substation's power supply radius, be a style of calligraphy between the three transformer substations and arrange. The in-station feeder line power supply unit and the inter-station feeder line power supply unit are established, and the power supply network units formed through combination and optimization are used, so that the construction of distribution networks in a single area is more standardized, the power supply capacity is utilized to the maximum degree, and the waste of power resources is reduced.
Description
Technical Field
The utility model belongs to the technical field of high voltage distribution network's technique and specifically relates to a power supply structure suitable for coastal tourism district is related to.
Background
Typical wiring of the existing high-voltage distribution network comprises radiation type wiring, chain type wiring and T type wiring, and wiring modes of the medium-voltage distribution network comprise single radiation, "N-1" single-ring network, N-supply one-standby, double-ring network and N-section N connection.
At present, the wiring mode of each region is selected only by considering load density, the distribution points of the transformer substations and the connection and medium voltage line wiring modes of the transformer substations are often split and analyzed, the terrain conditions of each region are not considered, the problem that medium and low voltage lines and high voltage transformer substations are not matched is caused, the waste of power resources and the loss of the lines are increased, and the improvement is needed.
SUMMERY OF THE UTILITY MODEL
To prior art's not enough, utility model's purpose provides a power supply structure suitable for coastal tourism district, has the waste that reduces electric power resource, reduces the circuit loss and can consider the advantage of the power supply in coordination between the multivoltage level.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
the utility model provides a power supply structure suitable for coastal tourism district, includes first transformer substation, second transformer substation and third transformer substation, first transformer substation all be connected with in-station feeder power supply unit on second transformer substation and the third transformer substation, first transformer substation, second transformer substation, third transformer substation with all be connected with the contact switch between the in-station feeder power supply unit, be connected with between the adjacent two transformer substations feeder power supply unit, when the longest distance of the regional minor face of supplying power is greater than twice transformer substation's power supply radius, be the zigzag between the three transformer substations and arrange, when the longest distance of the regional minor face of supplying power is less than twice transformer substation's power supply radius, be a style of calligraphy between the three transformer substations and arrange.
The utility model discloses further set up to: be equipped with first generating line in the first transformer substation, be equipped with the second generating line in the second transformer substation, be equipped with the third generating line in the third transformer substation, station interior feeder supply unit includes first main supply circuit, second main supply circuit, supplies the circuit fully, first main supply circuit connects through first normally closed switch between the first generating line, the second main supply circuit with connect through the second normally closed switch between the second generating line, supply the circuit fully with connect through the third normally closed switch between the third generating line.
The utility model discloses further set up to: the first main circuit that supplies includes first cubical switchboard room and first tie switch, the second main circuit that supplies includes second cubical switchboard room and second tie switch, it includes third tie switch to supply the circuit for reserve, first tie switch with first cubical switchboard room is connected, first cubical switchboard room is kept away from the one end of first tie switch with first normally closed switch is connected, second cubical switchboard room is connected with second tie switch, the second cubical switchboard room with second normally open switch is connected, third tie switch with supply the circuit for reserve and connect, third tie switch keeps away from the one end of supplying the circuit for reserve connect in first tie switch with the junction node of second tie switch.
The utility model discloses further set up to: the first and second interconnection switches are normally closed switches, and the third interconnection switch is a normally open switch.
The utility model discloses further set up to: the first switch room comprises a first switch room bus, a first outgoing switch and a first transformer, the first outgoing switch and the first transformer are respectively connected with the first switch room bus, and the first outgoing switch is connected with the first interconnection switch.
The utility model discloses further set up to: the first outgoing line switch is a normally open switch.
The utility model discloses further set up to: the second switch room comprises a second switch room bus, a second outgoing switch and a second transformer, the second outgoing switch and the second transformer are respectively connected with the second switch room bus, and the second outgoing switch is connected with the second connection switch.
The utility model discloses further set up to: the second outgoing line switch is a normally open switch.
The utility model discloses further set up to: the first switch room and the second switch room are all provided with three.
To sum up, the utility model discloses a beneficial technological effect does:
when the longest distance of the shorter side of the power supply area is larger than the power supply radius of the transformer substation which is two times, the three transformer substations are arranged in a straight shape or a zigzag shape, so that when the communication between the transformer substations on two sides plays a role in load transfer, the situation that voltage deviation exceeds the rated value requirement due to overlong lines cannot occur. By establishing the in-station feeder line power supply unit and the inter-station feeder line power supply unit and combining the preferentially formed power supply network units, the construction of a distribution network in a single area is more standardized, the power supply capacity is utilized to the maximum, the waste of power resources is reduced, the line loss is reduced, and meanwhile, the cooperative power supply among multiple voltage levels can be considered.
Drawings
Fig. 1 is a schematic diagram of the regional arrangement of the transformer substation of the present invention;
fig. 2 is a schematic diagram of a power supply model of a substation according to the present invention;
fig. 3 is the wiring mode schematic diagram of the transformer substation of the utility model.
In the figure, 1, a first substation; 2. a second substation; 3. a third substation; 4. a station feeder power supply unit; 41. a first main supply line; 411. a first switch house; 4111. a first switch house bus; 4112. a first outlet switch; 4113. a first transformer; 412. a first tie switch; 413. a first normally closed switch; 42. a second main supply line; 421. a second switch house; 4211. a second switch house bus; 4212. a second outlet switch; 4213. a second transformer; 422. a second contact switch; 423. a second normally closed switch; 43. preparing a supply line; 431. a third connection switch; 432. a third normally closed switch; 5. an interstation feeder line power supply unit; 6. a first bus bar; 7. a second bus bar; 8. and a third bus bar.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Refer to fig. 1 and fig. 2, for the utility model discloses a power supply structure suitable for coastal tourist area, including first transformer substation 1, second transformer substation 2 and third transformer substation 3, first transformer substation 1, all be connected with in-station feeder supply unit 4 on second transformer substation 2 and the third transformer substation 3, first transformer substation 1, second transformer substation 2, all be connected with the contact switch between third transformer substation 3 and the in-station feeder supply unit 4, be connected with between the adjacent two transformer substations feeder supply unit 5, when the longest distance of the less side of power supply region is greater than the transformer substation power supply radius of twice, be the style of calligraphy between the three transformers and arrange, when the longest distance of the less side of power supply region is less than the transformer substation power supply radius of twice, be an arrangement between the three transformer substations.
Referring to fig. 2 and 3, a first bus 6 is arranged in the first substation 1, a second bus 7 is arranged in the second substation 2, a third bus 8 is arranged in the third substation 3, the in-station feeder power supply unit 4 includes a first main supply line 41, a second main supply line 42 and a standby supply line 43, the first main supply line 41 is connected with the first bus 6 through a first normally closed switch 413, the second main supply line 42 is connected with the second bus 7 through a second normally closed switch 423, and the standby supply line 43 is connected with the third bus 8 through a third normally closed switch 432. The main power supply circuit and the standby power supply circuit are connected with the bus through the normally closed switch, so that the main power supply circuit and the standby power supply circuit are always in an electrified state, and continuous power supply of the main power supply circuit and the standby power supply circuit is guaranteed.
The first main supply line 41 includes a first switch room 411 and a first interconnection switch 412, the second main supply line 42 includes a second switch room 421 and a second interconnection switch 422, the backup supply line 43 includes a third interconnection switch 431, the first interconnection switch 412 is connected to the first switch room 411, one end of the first switch room 411 far from the first interconnection switch 412 is connected to the first normally closed switch 413, the second switch room 421 is connected to the second interconnection switch 422, the second switch room 421 is connected to the second normally closed switch 432, the third interconnection switch 431 is connected to the backup supply line 43, and one end of the third interconnection switch 431 far from the backup supply line 43 is connected to a connection node of the first interconnection switch 412 and the second interconnection switch 422. By connecting the third interconnection switch 431 to the connection node of the first interconnection switch 412 and the second interconnection switch 422, when the third interconnection switch 431 is closed, the auxiliary supply line 43 is simultaneously connected to the first main supply line 41 and the second main supply line 42, and the auxiliary supply line 43 is connected to the supply network for supplying power, so that the power distribution network can realize continuous power supply.
The first and second tie switches 412, 422 are normally closed switches and the third tie switch 431 is a normally open switch.
The first switch room 411 includes a first switch room bus 4111, a first outgoing switch 4112 and a first transformer 4113, the first outgoing switch 4112 and the first transformer 4113 are respectively connected to the first switch room bus 4111, and the first outgoing switch 4112 is connected to the first interconnection switch 412.
The first outgoing switch 4112 is a normally open switch.
The second switch room 421 includes a second switch room bus 4211, a second outgoing switch 4212 and a second transformer 4213, the second outgoing switch 4212 and the second transformer 4213 are respectively connected with the second switch room bus 4211, and the second outgoing switch 4212 is connected with the second connection switch 422. The number of the first switch rooms 411 and the number of the second switch rooms 421 are three.
The second outlet switch 4212 is a normally open switch.
The interstation feeder supply unit 5 is the same as the intra-station feeder supply unit 4 in wiring mode, and will not be described herein.
The working conditions and the implementation principle of the embodiment are as follows:
when the longest distance of the shorter side of the power supply area is larger than the power supply radius of a double-time transformer substation, the three transformers are arranged in a zigzag mode, and when the longest distance of the shorter side of the power supply area is smaller than the power supply radius of the double-time transformer substation, the three transformers are arranged in a straight mode, so that when the communication between the transformer substations on two sides is used for load transfer, the situation that voltage deviation caused by overlong lines exceeds the rated value requirement cannot be generated, and the cooperative power supply among multiple voltage levels can be considered.
By establishing the intra-station feeder power supply unit 4 and the inter-station feeder power supply unit 5 and combining the preferably formed power supply network units, the construction of a single regional distribution network is more standardized, and the power supply capacity is utilized to the maximum extent.
By arranging the auxiliary supply line 43, when a certain switch room on the main supply line fails, the auxiliary supply line 43 is connected with the switch room by closing the third network switch 431, so that the transformer substation can continuously supply power to the switch room, the number of the switch rooms connected to the main supply line is expanded according to different topographic characteristics, different user access standards are adapted, the expansibility of the power distribution network is improved, and the wiring of the power distribution network is more flexible.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (9)
1. The utility model provides a power supply structure suitable for coastal tourism district which characterized in that: including first transformer substation (1), second transformer substation (2) and third transformer substation (3), first transformer substation (1) all be connected with in-station feeder power supply unit (4) on second transformer substation (2) and third transformer substation (3), first transformer substation (1), second transformer substation (2), third transformer substation (3) with all be connected with the contact switch between in-station feeder power supply unit (4), be connected with between the adjacent two transformer substations feeder power supply unit (5), when the longest distance of supply area minor face is greater than twice transformer substation's power supply radius, be a style of calligraphy between the three transformer substations and arrange, when the longest distance of supply area minor face is less than twice transformer substation's power supply radius, be a style of calligraphy between the three transformer substations and arrange.
2. The power supply structure suitable for the coastal tourism area as claimed in claim 1, wherein: be equipped with first bus (6) in first transformer substation (1), be equipped with second bus (7) in second transformer substation (2), be equipped with third bus (8) in third transformer substation (3), station interior feeder power supply unit (4) include first main supply circuit (41), second main supply circuit (42), supply circuit (43) for ready, first main supply circuit (41) connect through first normally closed switch (413) between first bus (6), second main supply circuit (42) with connect through second normally closed switch (423) between second bus (7), supply circuit (43) for ready with connect through third normally closed switch (432) between third bus (8).
3. The power supply structure suitable for the coastal tourism area as claimed in claim 2, wherein: the first main supply line (41) comprises a first switch house (411) and a first tie switch (412), the second main supply line (42) comprising a second switch house (421) and a second connection switch (422), the backup line (43) comprising a third tie switch (431), the first tie switch (412) being connected to the first switch house (411), one end of the first switch room (411) far away from the first interconnection switch (412) is connected with the first normally closed switch (413), the second switch room (421) is connected with a second connection switch (422), the second switch room (421) is connected with the second normally-closed switch (423), the third connection switch (431) is connected to the auxiliary line (43), and the end of the third connection switch (431) remote from the auxiliary line (43) is connected to the connection node of the first connection switch (412) and the second connection switch (422).
4. The power supply structure suitable for the coastal tourist area according to claim 3, characterized in that: the first and second tie switches (412, 422) are normally closed switches and the third tie switch (431) is a normally open switch.
5. The power supply structure suitable for the coastal tourist area according to claim 3, characterized in that: first switch room (411) include first switch room generating line (4111), first switch (4112) and first transformer (4113) of being qualified for the next round of competitions, first switch (4112) of being qualified for the next round of competitions with first transformer (4113) respectively with first switch room generating line (4111) is connected, first switch (4112) of being qualified for the next round of competitions with first tie switch (412) is connected.
6. The power supply structure suitable for the coastal tourism area as claimed in claim 5, wherein: the first outgoing line switch (4112) is a normally open switch.
7. The power supply structure suitable for the coastal tourist area according to claim 3, characterized in that: the second switch room (421) comprises a second switch room bus (4211), a second outgoing line switch (4212) and a second transformer (4213), the second outgoing line switch (4212) and the second transformer (4213) are respectively connected with the second switch room bus (4211), and the second outgoing line switch (4212) is connected with the second connection switch (422).
8. The power supply structure suitable for the coastal tourism area as claimed in claim 7, wherein: the second outgoing line switch (4212) is a normally open switch.
9. The power supply structure suitable for the coastal tourist area according to claim 3, characterized in that: the number of the first switch rooms (411) and the number of the second switch rooms (421) are three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921365769.8U CN210490538U (en) | 2019-08-21 | 2019-08-21 | Power supply structure suitable for coastal tourism area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921365769.8U CN210490538U (en) | 2019-08-21 | 2019-08-21 | Power supply structure suitable for coastal tourism area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210490538U true CN210490538U (en) | 2020-05-08 |
Family
ID=70536890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921365769.8U Expired - Fee Related CN210490538U (en) | 2019-08-21 | 2019-08-21 | Power supply structure suitable for coastal tourism area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210490538U (en) |
-
2019
- 2019-08-21 CN CN201921365769.8U patent/CN210490538U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102368612B (en) | Triple-double wiring way of medium-voltage electric distribution network | |
| CN109687496B (en) | Method for calculating reliability of alternating current-direct current hybrid flexible power distribution network | |
| CN110932258A (en) | Diamond type distribution network | |
| CN111082421A (en) | AC/DC micro-grid system based on energy router and protection method thereof | |
| CN110994687A (en) | Line transformation method and system with distributed small hydropower stations at tail ends | |
| CN112838586A (en) | Diamond power supply topological structure of diamond power distribution network | |
| CN111952963A (en) | Construction area power distribution network fine planning method | |
| CN105305431B (en) | A kind of snowflake form rack construction method suitable for Urban Medium Voltage Distribution Network | |
| CN113783196A (en) | Power supply system of intelligent energy station | |
| CN210490538U (en) | Power supply structure suitable for coastal tourism area | |
| CN203104104U (en) | Optimized backbone transmission network system for electric power information communication | |
| CN210985673U (en) | Line transformation system with distributed small hydropower stations at tail ends | |
| CN117713179A (en) | Three-dimensional multiport direct current hub substation system architecture | |
| CN117728374A (en) | Three-dimensional multiport direct current hub substation topological structure | |
| CN210404745U (en) | Flexible multi-state switch device and system | |
| CN115207919A (en) | Grid frame system suitable for rural overhead power distribution network and grid frame construction method | |
| CN202405780U (en) | medium voltage distribution network | |
| CN105024329A (en) | Medium-voltage overhead trunk power distribution network construction structure and building method thereof | |
| CN203859518U (en) | Wiring structure for medium-voltage distribution network | |
| CN211223112U (en) | Main wiring structure of hub traction substation | |
| US20210288492A1 (en) | Safe and resilient energy distribution for a highly efficient microgrid | |
| CN113904326A (en) | Urban distribution network wiring mode | |
| CN211182805U (en) | Wiring structure of low-voltage side of transformer substation | |
| CN113241758A (en) | Flexible interconnection topology design method and system for balancing different source load structures between power distribution station intervals | |
| CN205985758U (en) | Novel electric main wiring of 220kV transformer substation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200508 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |