CN206749573U - High ferro Substation Bus Arrangement construction based on three single-phase traction transformers - Google Patents
High ferro Substation Bus Arrangement construction based on three single-phase traction transformers Download PDFInfo
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- CN206749573U CN206749573U CN201720273037.0U CN201720273037U CN206749573U CN 206749573 U CN206749573 U CN 206749573U CN 201720273037 U CN201720273037 U CN 201720273037U CN 206749573 U CN206749573 U CN 206749573U
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Abstract
Based on the high ferro Substation Bus Arrangement construction of three single-phase traction transformers, to be optimized to traction substation main electrical scheme construction, on the premise of connection type, the method for operation meet high-speed railway operation needs, number of devices and construction investment are reduced.Three-phase external power source inlet wire in traction substation with high-voltage side bus wiring.Tractive transformer is made up of the 1st tractive transformer, the 2nd tractive transformer and the 3rd tractive transformer, high-voltage side bus are accessed in 1st tractive transformer and the 3rd tractive transformer high-pressure side by one group of disconnecting switch, breaker respectively, and high-voltage side bus are accessed in the 2nd middle tractive transformer high-pressure side by breaker and two groups of disconnecting switch with different phase sequences.Switch-segment being only isolated by two on 27.5kV buses and forming III section of I section of bus of 27.5kV, II section of bus of 27.5kV and 27.5kV bus, the 1st tractive transformer, the 2nd tractive transformer and the 3rd tractive transformer low-pressure side are respectively respectively connected to III section of I section of bus of 27.5kV, II section of bus of 27.5kV and 27.5kV bus by one group of disconnecting switch, breaker.
Description
Technical field
Traction Substation of Electric Railway is the utility model is related to, it is more particularly to a kind of to be based on three single-phase traction transformers
High ferro Substation Bus Arrangement construction.
Background technology
Electrization railway draught load is electric locomotive, EMUs etc., and interruption of power supply will cause transport to block, and pass through
Ji, political influence are very big, therefore Traction Substation of Electric Railway main electrical scheme should be in circuit conversion, overhaul of the equipments and accident treatment
When ensure reliable power supply.
Tractive transformer in China's traction substation main electrical scheme uses fixed reservation system, and during normal operation, traction becomes
Depressor one (group) is run, and another (group) is standby.The tractive transformer connection type of traction substation should use single-phase wiring
Or three-phase Vx wiring.
Most of the country high-speed railway traction substation main electrical scheme is employed by 4 single-phase traction transformers two-by-two at present
2 groups of three-phase Vx wiring of composition, such as Beijing to Tianjin (Beijing-Tianjin high ferro), Beijing to Shanghai (Beijing-Shanghai express railway), Harbin to Dalian
(Harbin-to-Dalian high ferro), Zhengzhou to Xi'an (Zheng Xi high ferros), Hefei to Nanjing (closing peaceful high ferro), Chengdu-Chongqing (Chengdu-Chongqing high ferro), south
Rather to Guangzhou (south wide high ferro) etc..I.e. traction substation has two-way high voltage external electric power incoming line, and 4 single-phase tractions are configured in institute and are become
Depressor, in normal operation, one group of Vx tractive transformer being made up of two single-phase wiring transformers is run, another two single-phase wiring
One group of Vx tractive transformer that transformer is formed is standby., will be standby by back brake operation when one group of traction transformer faults
One group of Vx Connection Traction Transformer puts into operation, realizes and is powered to high-speed railway electric locomotive.
For example, the tractive transformer and traction autotransformer of Beijing-Tianjin inter-city passenger rail traction substation are using fixation
Standby mode, one group puts into operation when tractive transformer is normal, and another group standby.I.e. traction substation employ 4 it is single-phase
Tractive transformer, every 2 tractive transformers form one group while undertake whole loads when working.
At present in the tractive power supply system day-to-day operation in China, because traction substation external power source or tractive transformer are set
The standby full situation out of service of failure there is no report, that is to say, that traction substation two-way external power source and four (two groups) are led
The probability for drawing transformer while breaking down is very low.With the horizontal continuous lifting of electrical equipment manufacturing industry, traction power supply
System operation safeguards the constantly sound of system, the continuous advancement of maintenance of electrical equipment means, and power transformation is drawn under normal operation
The single-phase traction transformers of other two inoperatives seem excessively superfluous as standby in occupation of the half of the country of traction substation
Remaining, such scheme inevitably generates that engineering direct investment is big, transformer station's floor space is big, equipment operation maintenance cost
The problem of high.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of high ferro based on three single-phase traction transformers and become
Bus system arrangement constructs, and to be optimized to traction substation main electrical scheme construction, meets high-speed iron in connection type, the method for operation
On the premise of road operation needs, number of devices and construction investment are reduced.
Technical scheme is as follows used by the utility model solves its technical problem：
High ferro Substation Bus Arrangement construction of the utility model based on three single-phase traction transformers, including three-phase external electrical
Source inlet wire, high-voltage side bus, tractive transformer and 27.5kV side bus, it is characterized in that：The three-phase external power source inlet wire is by
Inlet wire, the second road inlet wire are formed all the way, in traction substation with high-voltage side bus wiring；The tractive transformer is led by the 1st
Draw transformer, the 2nd tractive transformer and the 3rd tractive transformer composition, the 1st tractive transformer and the 3rd tractive transformer high-pressure side
High-voltage side bus are accessed by one group of disconnecting switch, breaker respectively, the 2nd middle tractive transformer high-pressure side passes through breaker
With two groups of disconnecting switch high-voltage side bus are accessed with different phase sequences；By the 3rd disconnecting switch, the 4th isolation on the 27.5kV buses
Switch-segment forms III section of I section of bus of 27.5kV, II section of bus of 27.5kV and 27.5kV bus, and the 1st tractive transformer, the 2nd are led
Draw transformer and the 3rd tractive transformer low-pressure side respectively by one group of disconnecting switch, breaker be respectively connected to I section of bus of 27.5kV,
III section of bus of II section of bus of 27.5kV and 27.5kV, four feeder lines of traction substation are respectively connected to 27.5kV I section of bus, 27.5kV
III section of bus is powered to the EMUs run on circuit.
The beneficial effects of the utility model are, can be by by being optimized to traction substation main electrical scheme construction, when normal
Any two in three transformers run simultaneously, another stoppage in transit, can be by any one in three transformers under extreme case
Operation, another two stoppages in transit, meet that high-speed railway runs needs with three tractive transformers, effectively reduce number of devices and build and throw
Money.According to measuring and calculating, a traction substation can save the area 1080m2Left and right, equipment and mounting cost can save more than 200 ten thousand yuan, and
Railway department's operation maintenance cost can be reduced, economic benefit protrudes.
Brief description of the drawings
This specification includes such as next width accompanying drawing：
Fig. 1 is the schematic diagram of high ferro Substation Bus Arrangement construction of the utility model based on three single-phase traction transformers.
Component and corresponding mark are shown in figure：1st tractive transformer 1T, the 2nd tractive transformer 2T, the 3rd traction voltage transformation
Device 3T；First via inlet wire 10, the second road inlet wire 11, high-voltage side bus 12, left side section high voltage bus 121, stage casing high voltage bus
122nd, III section of right side section high voltage bus 123, I section of bus 13 of 27.5kV, II section of bus 14 of 27.5kV, 27.5kV bus 15, feeder line
16；1st disconnecting switch 1001QS, the 2nd disconnecting switch 1002QS, the 3rd disconnecting switch 2001QS, the 4th disconnecting switch 2002QS, the
5 disconnecting switch 1011QS, the 6th disconnecting switch 1031QS, the 7th disconnecting switch 1012QS, the 8th disconnecting switch 2011QS, the 9th isolate
1021QS is switched, the 9th disconnecting switch 1022QS, the 10th disconnecting switch 2021QS, the 11st disconnecting switch 1032QS, the 12nd keeps apart
Close 2031QS；1st breaker 101QF, the 2nd breaker 201QF, the 3rd breaker 102QF, the 4th breaker 202QF, the 5th open circuit
Device 103QF, the 6th breaker 203QF.
Embodiment
The utility model is further illustrated with reference to the accompanying drawings and examples.
Reference picture 1, high ferro Substation Bus Arrangement construction of the utility model based on three single-phase traction transformers, including three
Phase external power source inlet wire, high-voltage side bus 12, tractive transformer and 27.5kV side bus.The three-phase external power source inlet wire is by
Inlet wire 10, the second road inlet wire 11 are formed all the way, in traction substation with the wiring of high-voltage side bus 12；The tractive transformer by
1st tractive transformer 1T, the 2nd tractive transformer 2T and the 3rd tractive transformer 3T compositions, the tractions of the 1st tractive transformer 1T and the 3rd
High-voltage side bus, the 2nd middle tractive transformer 2T are accessed in transformer 3T high-pressure sides by one group of disconnecting switch, breaker respectively
High-voltage side bus are accessed in high-pressure side by breaker and two groups of disconnecting switch with different phase sequences.By the 3rd on the 27.5kV buses
Disconnecting switch 2001QS, the 4th disconnecting switch 2002QS are segmented to form II section of I section of bus 13 of 27.5kV, 27.5kV and of bus 14
The tractive transformer 1T of III section of bus of 27.5kV the 15, the 1st, the 2nd tractive transformer 2T and the 3rd tractive transformer 3T low-pressure sides respectively pass through
One group of disconnecting switch, breaker are respectively connected to III section of I section of bus 13 of 27.5kV, II section of bus 14 of 27.5kV and 27.5kV bus
15, it is dynamic to what is run on circuit that four feeder lines of traction substation are respectively connected to III section of I section of bus 13 of 27.5kV, 27.5kV bus 15
Car group is powered.
2nd tractive transformer 2T can close two groups of high voltage isolators as needed and access different external power sources to realize
Phase sequence, so as to realize the different phase sequences needed for the 1st tractive transformer 1T of the cooperation left and right sides, the 2nd tractive transformer 2T.Normal
During operation, the operation of any two tractive transformers of traction substation, in addition one it is standby.
Reference picture 1, by the 3rd disconnecting switch 2001QS, the 4th disconnecting switch 2002QS can by II section of bus 14 of 27.5kV with
III section of I section of bus 13 of 27.5kV, 27.5kV bus 15 realize connection or segmentation, or by I section of bus 13 of 27.5kV, II section of 27.5kV
III section of bus 15 of bus 14 and 27.5kV is connected as an entirety.Traction substation feeder line side wire-outgoing breaker is respectively connected to
I section of bus 13 of 27.5kV, III section of bus 15 of 27.5kV (can also be connected to II section of bus 14 of 27.5kV).27.5kV feeder breaker is standby
With mode uplink and downlink can be used standby each other, 50% standby or 100% is standby.
Traction substation is using two-way external power source inlet wire and uses three tractive transformers, incoming power and traction voltage transformation
Device can be combined into a variety of methods of operation.The way of recommendation is as shown in figure 1, in normal operation, and first via inlet wire 10 (or enter by the second tunnel
Line 11) charging operation, the second road inlet wire 11 (or first via inlet wire 10) is standby, the 1st tractive transformer 1T, the 3rd tractive transformer
3T operations (the 1st tractive transformer 1T, the 3rd tractive transformer 3T form one group of Vx wiring), the 2nd tractive transformer 2T is standby.
I section of bus 13 of 27.5kV and III section of bus 15 of 27.5kV are powered, and corresponding 2nd tractive transformer 2T II section of bus 14 of 27.5kV is standby
With the disconnecting switch on 27.5kV side bus is opened., can when first via inlet wire 10 (or second road inlet wire 11) breaks down
Make first via inlet wire 10 (or second road inlet wire 11) out of service, inspection has the second road inlet wire 11 (or first via inlet wire 10) after pressure
Input.Meanwhile when any one tractive transformer breaks down, standby tractive transformer and its 27.5kV side bus can be thrown
Enter and replace failure tractive transformer, 27.5kV side bus by disconnecting switch realize by failure tractive transformer corresponding to bus
Powered, now traction substation can still realize the method for operation of Vx wiring.Even if in extreme circumstances, two tractive transformers are equal
It is out of service, it can still realize a single-phase traction transformer power supply.
Apart from the above description, other also several methods of operation are available for selecting for the three tractive transformers operation of traction substation
Select, can use：A. one single-phase traction transformer operation of tape is entered on a road；B. it is same to enter two single-phase traction transformers of tape for a road
Phase sequence paired running；C. two-way inlet wire two single-phase traction transformer operations of band respectively；D. the wherein band all the way in two-way inlet wire
Two single-phase traction transformer paired runnings, the combination of one single-phase traction transformer operation of another way band.
Reference picture 1, the three-phase external power source inlet wire set the 5th disconnecting switch 1011QS on first via inlet wire 10,
6th disconnecting switch 1031QS is set on the second road inlet wire 11.The high-voltage side bus 12 can use single busbar, can also be at it
The 1st disconnecting switch 1001QS of upper setting and the 2nd disconnecting switch 1002QS forms left side section high voltage bus 121, stage casing high voltage bus
122 and right side section high voltage bus 122.
Reference picture 1, the 1st tractive transformer 1T high-pressure sides pass through the 7th disconnecting switch 1012QS, the 1st breaker 101QF
Access left side section high voltage bus 121 (such as AB phases), it is real by the 7th disconnecting switch 1012QS and the 1st breaker 101QF divide-shut brake
Existing 1st tractive transformer 1T power failure and power transmission.Low-pressure side is accessed by the 8th disconnecting switch 2011QS, the 2nd breaker 201QF
I section of bus 13 of 27.5kV, the 1st traction voltage transformation is realized by the 8th disconnecting switch 2011QS and the 2nd breaker 201QF divide-shut brake
Device 1T has a power failure to I section of bus 13 and power transmission.
Reference picture 1, the 2nd tractive transformer 2T high-pressure sides pass through the 3rd breaker 102QF and the 8th disconnecting switch
2011QS, the 9th disconnecting switch 1021QS access stage casing high voltage bus 122.Pass through the 8th disconnecting switch 2011QS, the 9th disconnecting switch
1021QS and the 3rd breaker 102QF divide-shut brake realize the 2nd tractive transformer 2T power failure and power transmission.Pass through the 8th disconnecting switch
2011QS and the 3rd breaker 102QF divide-shut brake, the 2nd tractive transformer 2T can access or exit wherein the one of high-voltage side bus
Phase (such as AB phases).By the 9th disconnecting switch 1021QS and the 3rd breaker 102QF divide-shut brake, the 2nd tractive transformer 2T can connect
Enter or exit an other phase (such as CB phases) for high-voltage side bus.2nd tractive transformer 2T low-pressure sides pass through the 10th disconnecting switch
2021QS, the 4th breaker 202QF access II section of bus 14 of 27.5kV, pass through the 10th disconnecting switch 2021QS and the 4th breaker
202QF divide-shut brake realizes that the 2nd tractive transformer 2T has a power failure and power transmission to II section of bus 14.
Reference picture 1, the 3rd tractive transformer 3T high-pressure sides pass through the 11st disconnecting switch 1032QS, the 5th breaker
103QF accesses right side section high voltage bus 122, the is realized by 11 disconnecting switch 1032QS and the 5th breaker 103QF divide-shut brake
3 tractive transformer 3T power failure and power transmission.Low-pressure side is accessed by the 12nd disconnecting switch 2031QS, the 6th breaker 203QF
III section of bus 15 of 27.5kV, the 3rd traction voltage transformation is realized by the 12nd disconnecting switch 2031QS, the 6th breaker 203QF divide-shut brake
Device 3T has a power failure to III section of bus 15 and power transmission.
Reference picture 1,27.5kV sides set III section of I section of bus 13 of 27.5kV, II section of bus 14 of 27.5kV and 27.5kV respectively
The 3rd disconnecting switch 2001QS connections are used between II section of bus 15, wherein I section of bus 13 of 27.5kV, 27.5kV bus 14,
The 4th disconnecting switch 2002QS connections are used between III section of II section of bus 14 of 27.5kV, 27.5kV bus 15.
In traction substation as the 1st tractive transformer 1T and the 3rd tractive transformer paired running, the 3rd disconnecting switch
2001QS and the 4th disconnecting switch 2002QS is gate-dividing state.
In traction substation as the 1st tractive transformer 1T and the 2nd tractive transformer 2T paired runnings, the 3rd disconnecting switch
2001QS is gate-dividing state, and the 4th disconnecting switch 2002QS is "on" position.
In traction substation as the 2nd tractive transformer 2T and the 3rd tractive transformer 3T paired runnings, the 3rd disconnecting switch
2001QS is "on" position, and the 4th disconnecting switch 2002QS is gate-dividing state.
In traction substation when any one tractive transformer isolated operation, the isolation of the 3rd disconnecting switch 2001QS and the 4th
It is "on" position to switch 2002QS.
Four feeder lines of traction substation are respectively connected to III section of I section of bus 13 of 27.5kV, 27.5kV bus, to circuit on run
EMUs power supply.
The high ferro power transformation station owner of the utility model based on three single-phase traction transformers described above that simply explains through diagrams
Some principles of wiring structure, it is not intended to utility model being confined in shown and described concrete structure and the scope of application,
Therefore every corresponding modification for being possible to be utilized and equivalent, belong to the apllied the scope of the claims of the utility model.
Claims (5)
1. based on the high ferro Substation Bus Arrangement construction of three single-phase traction transformers, including three-phase external power source inlet wire, high pressure
Side bus (12), tractive transformer and 27.5kV side bus, it is characterized in that：The three-phase external power source inlet wire is by first via inlet wire
(10), the second road inlet wire (11) form, in traction substation with high-voltage side bus (12) wiring；The tractive transformer is by
1 tractive transformer (1T), the 2nd tractive transformer (2T) and the 3rd tractive transformer (3T) composition, the 1st tractive transformer (1T) and
High-voltage side bus are accessed in 3rd tractive transformer (3T) high-pressure side by one group of disconnecting switch, breaker respectively, and the middle the 2nd leads
Draw transformer (2T) high-pressure side and access high-voltage side bus by breaker and two groups of disconnecting switch with different phase sequences；The 27.5kV
On bus by the 3rd disconnecting switch (2001QS), the 4th disconnecting switch (2002QS) segmentation formed I section of bus (13) of 27.5kV,
III section of bus (15) of II section of bus (14) of 27.5kV and 27.5kV, the 1st tractive transformer (1T), the 2nd tractive transformer (2T) and
3rd tractive transformer (3T) low-pressure side respectively by one group of disconnecting switch, breaker be respectively connected to I section of bus (13) of 27.5kV,
III section of bus (15) of II section of bus (14) of 27.5kV and 27.5kV, four feeder lines of traction substation are respectively connected to I section of mother of 27.5kV
III section of line (13), 27.5kV bus (15) are powered to the EMUs run on circuit.
2. the high ferro Substation Bus Arrangement construction as claimed in claim 1 based on three single-phase traction transformers, it is characterized in that：Institute
State and the 1st disconnecting switch (1001QS) and the 2nd disconnecting switch (1002QS) are set on high-voltage side bus (12), form left side section high pressure
Bus (121), stage casing high voltage bus (122) and right side section high voltage bus (122).
3. the high ferro Substation Bus Arrangement construction as claimed in claim 2 based on three single-phase traction transformers, it is characterized in that：Institute
It is high by the 7th disconnecting switch (1012QS), the 1st breaker (101QF) access left side section to state the 1st tractive transformer (1T) high-pressure side
Bus (121) is pressed, low-pressure side accesses I section of bus of 27.5kV by the 8th disconnecting switch (2011QS), the 2nd breaker (201QF)
(13)。
4. the high ferro Substation Bus Arrangement construction as claimed in claim 2 based on three single-phase traction transformers, it is characterized in that：
2nd tractive transformer (2T) high-pressure side passes through the 3rd breaker (102QF) and the 8th disconnecting switch (2011QS), the 9th isolation
(1021QS) access stage casing high voltage bus (122) is switched, low-pressure side passes through the 10th disconnecting switch (2021QS), the 4th breaker
(202QF) accesses II section of bus (14) of 27.5kV.
5. the high ferro Substation Bus Arrangement construction as claimed in claim 2 based on three single-phase traction transformers, it is characterized in that：
3rd tractive transformer (3T) high-pressure side passes through the 11st disconnecting switch (1032QS), the 5th breaker (103QF) access right side
Section high voltage bus (122), low-pressure side access III section of 27.5kV by the 12nd disconnecting switch (2031QS), the 6th breaker (203QF)
Bus (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720273037.0U CN206749573U (en) | 2017-03-20 | 2017-03-20 | High ferro Substation Bus Arrangement construction based on three single-phase traction transformers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720273037.0U CN206749573U (en) | 2017-03-20 | 2017-03-20 | High ferro Substation Bus Arrangement construction based on three single-phase traction transformers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206749573U true CN206749573U (en) | 2017-12-15 |
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ID=60610606
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720273037.0U Withdrawn - After Issue CN206749573U (en) | 2017-03-20 | 2017-03-20 | High ferro Substation Bus Arrangement construction based on three single-phase traction transformers |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106882084A (en) * | 2017-03-20 | 2017-06-23 | 中铁二院工程集团有限责任公司 | Based on three high ferro Substation Bus Arrangement constructions of single-phase traction transformer |
| CN111969585A (en) * | 2020-06-28 | 2020-11-20 | 中铁第一勘察设计院集团有限公司 | Traction substation power supply system with three power supplies |
| CN113572189A (en) * | 2021-07-26 | 2021-10-29 | 南方电网科学研究院有限责任公司 | Bipolar flexible direct current system for offshore wind power and transformer fault switching method thereof |
-
2017
- 2017-03-20 CN CN201720273037.0U patent/CN206749573U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106882084A (en) * | 2017-03-20 | 2017-06-23 | 中铁二院工程集团有限责任公司 | Based on three high ferro Substation Bus Arrangement constructions of single-phase traction transformer |
| CN106882084B (en) * | 2017-03-20 | 2023-09-22 | 中铁二院工程集团有限责任公司 | Main wiring structure of high-speed rail transformer station based on three single-phase traction transformers |
| CN111969585A (en) * | 2020-06-28 | 2020-11-20 | 中铁第一勘察设计院集团有限公司 | Traction substation power supply system with three power supplies |
| CN113572189A (en) * | 2021-07-26 | 2021-10-29 | 南方电网科学研究院有限责任公司 | Bipolar flexible direct current system for offshore wind power and transformer fault switching method thereof |
| CN113572189B (en) * | 2021-07-26 | 2023-12-22 | 南方电网科学研究院有限责任公司 | Bipolar flexible direct current system for offshore wind power and transformer fault switching method thereof |
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