CN207459723U - Spare phase transformer quickly puts into arrangement - Google Patents
Spare phase transformer quickly puts into arrangement Download PDFInfo
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- CN207459723U CN207459723U CN201721647593.6U CN201721647593U CN207459723U CN 207459723 U CN207459723 U CN 207459723U CN 201721647593 U CN201721647593 U CN 201721647593U CN 207459723 U CN207459723 U CN 207459723U
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- transformer
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Abstract
The utility model discloses spare phase transformers quickly to put into arrangement, including ultra-high-tension power transmission line, civilian side transmission line of electricity, transformer group；Transformer group further includes spare transformer, and spare transformer nationality is connected respectively by the A phase lines of public auxiliary bus-bar and three-phase line, B phase lines and C phase lines；The low-pressure side of spare transformer connects civilian side transmission line of electricity respectively；Public auxiliary bus-bar includes and the main line of spare transformer and three separated times for connecting phase line respectively；Main line one end connection spare transformer other end connects three separated times；The other end of three separated times connects A phase lines, B phase lines and C phase lines respectively, and a spare isolating transformer switch is equipped on each separated time.Utility model is quick to cut off failure phase by the grid switching operation of disconnecting switch in the case of a certain phase transformer failure, puts into spare phase transformer, can greatly improve the switch speed of spare transformer, reduces power off time caused by due to transformer fault.
Description
Technical field
The utility model is related to high voltage power transmission and transforming technical field, more particularly to spare phase transformer quickly puts into arrangement knot
Structure.
Background technology
In existing high voltage power transmission and transforming technology, some important substations of voltage levels large capacity, when using single-phase master
During transformer, it is contemplated that for transformer there are certain failure rate, conventional design is typically all to be arranged in juxtaposition in main transformer side
One spare phase transformer, when a certain (phase) transformer fault, faulty equipment of dismantling removes repair, while spare change
Depressor is installed to the position of failure phase.
However in practical applications, replacing transformer needs to do transformer oil sample experiment, check tap changer of transformer, after
Arrester location, connection high and low pressure side conductor and neutral point device conductor etc., this replacement process generally at least need 48 it is small when.
Moreover, it is also needed to because doing oil sample experiment depending on the technical conditions of substation locality, if do not possessed nearby
Test capability, then power off time will more long, so as to bring serious economic loss and severe social influence.
Therefore, it is necessary to be improved to existing spare transformer switching mode, on the basis of safety is ensured, carry as far as possible
High switch speed reduces power off time.
Utility model content
In view of the drawbacks described above of the prior art, the utility model provides spare phase transformer and quickly puts into arrangement,
The first purpose of realization is that special busbar is designed for spare transformer, and spare phase transformer is connected in power grid, keeps heat
Spare, in the case of a certain phase transformer failure, quick to cut off failure phase by the grid switching operation of disconnecting switch, input is standby
Use phase transformer.
To achieve the above object, the utility model discloses spare phase transformers quickly to put into arrangement, including high pressure
It transmission line of electricity and civilian side transmission line of electricity and is arranged between the ultra-high-tension power transmission line and the civilian side transmission line of electricity
Transformer group；The ultra-high-tension power transmission line includes three-phase line, is respectively：A phase lines, B phase lines and C phase lines；The A phases
Circuit, the B phase lines and the C phase lines respectively with transformer R, transformer S and the transformer T in the transformer group group
Connection, and a main disconnecting switch is equipped between each phase line and corresponding transformer；It is characterized in that：
The transformer group further includes spare transformer, and the spare transformer nationality is by public auxiliary bus-bar and the three-phase
The A phase lines, the B phase lines and the C phase lines of circuit connect respectively；The low-pressure side difference of the spare transformer
The even civilian side transmission line of electricity；
The public auxiliary bus-bar includes connecting the phase line respectively with the main line of the spare transformer and three
Separated time；Described main line one end connects the spare transformer other end and connects three separated times；Three separated times it is another
One end connects the A phase lines, the B phase lines and the C phase lines respectively, and it is spare to be equipped with one on each separated time
Isolating transformer switchs.
Preferably, the main disconnecting switch and the spare isolating transformer switch are single-pole isolator.
Preferably, the civilian side transmission line of electricity is 35kV three phase current feeders road.
The beneficial effects of the utility model：
Spare transformer is connected in power grid, is protected by designing special busbar for spare transformer by the utility model nationality
Stand-by heat is held, it is quick to cut off failure phase by the grid switching operation of disconnecting switch in the case of a certain phase transformer failure, it throws
Enter spare phase transformer, the switch speed of spare transformer can greatly be improved, reduce and stop caused by due to transformer fault
The electric time.
The technique effect of the design of the utility model, concrete structure and generation is made furtherly below with reference to attached drawing
It is bright, to be fully understood from the purpose of this utility model, feature and effect.
Description of the drawings
Fig. 1 shows the structure diagram of one embodiment of the utility model.
Specific embodiment
Embodiment
As shown in Figure 1, spare phase transformer quickly puts into arrangement, transmit electricity including ultra-high-tension power transmission line 2 and civilian side
Circuit 4 and the transformer group 1 being arranged between ultra-high-tension power transmission line 2 and civilian side transmission line of electricity 4；Ultra-high-tension power transmission line 2 wraps
Three-phase line is included, is respectively：A phase lines, B phase lines and C phase lines；A phase lines, B phase lines and C phase lines respectively with transformation
Transformer R11, transformer S12 in 1 group of device group are connected with transformer T13, and between each phase line and corresponding transformer
Equipped with a main disconnecting switch 21,22,23；It is characterized in that：
Transformer group 1 further includes spare transformer 14, and 14 nationality of spare transformer is by public auxiliary bus-bar 3 and three-phase line
A phase lines, B phase lines and C phase lines connect respectively；The low-pressure side of spare transformer 14 connects civilian side transmission line of electricity 4 respectively；
Public auxiliary bus-bar 3 includes and the main line of spare transformer 14 and three separated times for connecting phase line respectively；It is main
Line one end 14 other end of connection spare transformer connects three separated times；The other end of three separated times connects A phase lines, B phases respectively
Circuit and C phase lines, and a spare isolating transformer switch 31,32,33 is equipped on each separated time.
The utility model designs special public auxiliary bus-bar 3 for spare transformer 14, spare transformer is connected to electricity
In net, stand-by heat is kept, in the case of a certain phase transformer failure, by the grid switching operation of disconnecting switch, quick excision event
Hinder phase, put into spare phase transformer, the switch speed of spare transformer can greatly be improved, reduce and made due to transformer fault
Into power off time.
In certain embodiments, main disconnecting switch 21,22,23 and spare isolating transformer switch 31,32,33 are monopole
Disconnecting switch.
In certain embodiments, civilian side transmission line of electricity is 35kV three phase current feeders road.
The preferred embodiment of the utility model described in detail above.It should be appreciated that the ordinary skill people of this field
Member according to the present utility model can conceive without creative work makes many modifications and variations.Therefore, all this technology necks
Technical staff passes through logic analysis, reasoning or limited reality on the basis of existing technology according to the design of the utility model in domain
Available technical solution is tested, it all should be in the protection domain being defined in the patent claims.
Claims (3)
1. spare phase transformer quickly puts into arrangement, including ultra-high-tension power transmission line (2) and civilian side transmission line of electricity (4), with
And it is arranged on the transformer group (1) between the ultra-high-tension power transmission line (2) and the civilian side transmission line of electricity (4)；The high pressure
Transmission line of electricity (2) includes three-phase line, is respectively：A phase lines, B phase lines and C phase lines；The A phase lines, the B phase lines
Road and the C phase lines respectively with transformer R (11), transformer S (12) and the transformer T in transformer group (1) group
(13) connect, and a main disconnecting switch (21,22,23) is equipped between each phase line and corresponding transformer；It is characterized in that：
The transformer group (1) further includes spare transformer (14), and spare transformer (14) nationality is by public auxiliary bus-bar (3)
It is connected respectively with the A phase lines, the B phase lines and the C phase lines of the three-phase line；The spare transformer
(14) low-pressure side connects the civilian side transmission line of electricity (4) respectively；
The public auxiliary bus-bar (3) includes connecting the phase respectively with the main line of the spare transformer (14) and three
The separated time of circuit；Described main line one end connects spare transformer (14) other end and connects three separated times；Described in three
The other end of separated time connects the A phase lines, the B phase lines and the C phase lines respectively, and is all provided on each separated time
There is a spare isolating transformer switch (31,32,33).
2. spare phase transformer according to claim 1 quickly puts into arrangement, it is characterised in that：The master keeps apart
It is single-pole isolator to close (21,22,23) and the spare isolating transformer switch (31,32,33).
3. spare phase transformer according to claim 1 quickly puts into arrangement, it is characterised in that：The civilian side is defeated
Electric line is 35kV, 20kV, 10kV or 6kV three phase current feeder road, transformer group (1) high-pressure side be 220kV,
330kV, 500kV or 750kV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721647593.6U CN207459723U (en) | 2017-12-01 | 2017-12-01 | Spare phase transformer quickly puts into arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721647593.6U CN207459723U (en) | 2017-12-01 | 2017-12-01 | Spare phase transformer quickly puts into arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207459723U true CN207459723U (en) | 2018-06-05 |
Family
ID=62276407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721647593.6U Active CN207459723U (en) | 2017-12-01 | 2017-12-01 | Spare phase transformer quickly puts into arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207459723U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109412060A (en) * | 2018-12-13 | 2019-03-01 | 国网浙江省电力有限公司 | A kind of flexible direct current converter station quick-switching spare phase transformer arrangement structure and method |
| CN118174246A (en) * | 2024-03-13 | 2024-06-11 | 上海勘测设计研究院有限公司 | A switchable flexible DC connection variable arrangement structure |
-
2017
- 2017-12-01 CN CN201721647593.6U patent/CN207459723U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109412060A (en) * | 2018-12-13 | 2019-03-01 | 国网浙江省电力有限公司 | A kind of flexible direct current converter station quick-switching spare phase transformer arrangement structure and method |
| CN118174246A (en) * | 2024-03-13 | 2024-06-11 | 上海勘测设计研究院有限公司 | A switchable flexible DC connection variable arrangement structure |
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