CN201998818U - Segmented kink switch station - Google Patents
Segmented kink switch station Download PDFInfo
- Publication number
- CN201998818U CN201998818U CN2011201318761U CN201120131876U CN201998818U CN 201998818 U CN201998818 U CN 201998818U CN 2011201318761 U CN2011201318761 U CN 2011201318761U CN 201120131876 U CN201120131876 U CN 201120131876U CN 201998818 U CN201998818 U CN 201998818U
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- CN
- China
- Prior art keywords
- power supply
- circuit breaker
- switchyard
- kink
- electricity
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- 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 - Lifetime
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Abstract
The utility model discloses a segmented kink switch station, which aims at effectively improving the power supply capability of a system and solves the problem that power is supplied for a high-standard railway at heavy load. The switch station comprises upper-line power supply arms and lower-line power supply arms which are respectively connected into a complex line electrified railway through four power transmission lines (21, 22, 23 and 24); the power supply arms are divided into four power supply zones (11, 12, 13 and 14) by the four power supply lines together with a traction substation feeder circuit breaker (61) and a tail-end zone station circuit breaker (71); and the four power supply lines (21, 22, 23 and 24) respectively comprise a circuit breaker (31) and a current type transformer (32) which are sequentially connected and are kinked and connected in parallel by the four circuit breakers (31).
Description
Technical field
The utility model relates to electric railway traction power supply system, particularly a kind of circuit breaker mode sectional type kink switchyard of tractive power supply system up-downgoing feeding section.
Background technology
Along with development and national economy, railway construction is maked rapid progress, and railways train operation density and service requirement significantly improve, and railway requires to have proposed new, higher requirement to power supply capacity, quality of power supply and power supply reliability.
With speed target value 200km/h and the above two-wire electrified railway large conveying quantity that is representative, high standard circuit tracted load more in the past circuit be improved largely.At present, the high standard line signal can satisfy passenger vehicle 4 minutes and more than, lorry was followed the trail of operation in 5 minutes, very high (the 9600kW～22000kW) of single vehicles power, electric current very big (400～900A), follow the trail of continuously under the running condition at train, tracted load will be near 100～200MVA.For big supply load like this, generally adopt the AT power supply mode, adopt the AT power supply mode, the traction transformation facility is more, the contact system complex structure, the operation maintenance difficulty is bigger, and simultaneously, because service area is bigger, traction net fault incidence is bigger.
The utility model content
Technical problem to be solved in the utility model provides a kind of sectional type kink switchyard, can improve system's power supply capacity effectively, solves a high standard railway heavy load power supply difficult problem.
The technical scheme that its technical matters that solves the utility model adopts is as follows:
Sectional type kink switchyard of the present utility model, it is characterized in that: this switchyard comprises respectively by 4 transmission lines of electricity access multiple line electrified railway up-downgoing feeding sections, with traction substation feeder line circuit breaker and end partition institute circuit breaker, feeding section is divided into 4 power supply zones; These 4 transmission lines of electricity respectively comprise bonded assembly circuit breaker, current type transformer successively, and in parallel by 4 circuit breaker kinks.
The beneficial effects of the utility model are, realize the kink at up-downgoing feeding section middle part by adopting the circuit breaker mode, with the tracted load of balanced feeding arm up-downgoing, improve system's power supply capacity, solve a high standard railway heavy load power supply difficult problem; By the sectional type circuit breaker, realize traction net power supply zone, solve the selectivity and the quick-break of protection.
Description of drawings
This specification sheets comprises following two width of cloth accompanying drawings:
Fig. 1 is the formation scheme drawing of the utility model sectional type kink switchyard;
Fig. 2 is the power taking scheme circuit of the utility model sectional type kink switchyard 10kV house transformer.
Parts shown in the figure, toponym and pairing mark: power supply zone 11, power supply zone 12, power supply zone 13, power supply zone 14, transmission line of electricity 21, transmission line of electricity 22, transmission line of electricity 23, transmission line of electricity 24, circuit breaker 31, current type transformer 32, and branch road 40 is pressed in joint inspection, voltage transformer 41, outdoor high-voltage fuse 42, single-pole isolator 43, Zinc-Oxide Arrester 44,10kV through track 50, fuse switch 51, unidirectional power transformer 52, feeder line circuit breaker 61, end partition institute circuit breaker 71.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
With reference to Fig. 1, sectional type kink switchyard of the present utility model, this switchyard comprises respectively by 4 transmission lines of electricity, 21,22,23,24 access multiple line electrified railway up-downgoing feeding sections, with traction substation feeder line circuit breaker 61 and end partition institute circuit breaker 71, feeding section is divided into 4 power supply zones 11,12,13,14.These 4 transmission lines of electricity 21,22,23,24 respectively comprise bonded assembly circuit breaker 31, current type transformer 32 successively, and in parallel by 31 kinks of 4 circuit breakers.The tracted load difference of promptly utilizing the double-tracking railways up-downgoing gradient and transportation histological difference to cause, twist together at the feeding section middle part by up-downgoing being drawn net, make traction current be able to equilibrium by being electrically connected at up-downgoing traction net, to reduce the traction net electric current of heavy load direction, improve the traction net electric current of light load direction, because the tractive power supply system power supply capacity is determined by the heavy load direction, by balanced weight direction load, can effectively improve the power supply capacity of electric power system.Pass through section switch; cooperate with head end traction substation place feeder line circuit breaker and end partition circuit breaker in parallel of living in; realize traction net power supply power supply zone; effective control accident scope; guarantee the selectivity and the quick-break of relaying, simultaneously, can guarantee under the accident conditions; the traction net is kept parallel operation to a certain extent, has improved power supply capacity under the accident conditions.Because the traction net has been carried out segmentation, and this equipment cooperates with the interruption maintenance scheme, can realize easily that " V " stops the segmentation of powering under the maintenance situation.
With reference to Fig. 1, described transmission line of electricity 21,22,23,24, each presses branch road 40 in its circuit breaker 31 access point settings and joint inspection, and joint inspection presses branch road 40 by bonded assembly voltage transformer 41, outdoor high-voltage fuse 42, single-pole isolator 43 constitute successively.Described and joint inspection presses branch road 40 outsides to be connected to Zinc-Oxide Arrester 44 between transmission line of electricity 21,22,23,24 and ground.With reference to Fig. 2, described switchyard by the unidirectional power transformer 52 of bonded assembly, fuse switch 51 successively from 50 power takings of 10kV through track.
Some principles of the above the utility model sectional type kink switchyard that just explains through diagrams, be not be the utility model to be confined to shown in and in described concrete structure and the Applicable scope, so every the corresponding modify and equivalent that might be utilized all belongs to the claim that the utility model is applied for.
Claims (4)
1. sectional type kink switchyard, it is characterized in that: this switchyard comprises respectively by 4 transmission lines of electricity (21,22,23,24) access multiple line electrified railway up-downgoing feeding section, with traction substation feeder line circuit breaker (61) and end partition institute circuit breaker (71), feeding section is divided into 4 power supply zones (11,12,13,14); These 4 transmission lines of electricity (21,22,23,24) respectively comprise bonded assembly circuit breaker (31), current type transformer (32) successively, and in parallel by 4 circuit breakers (31) kink.
2. sectional type kink switchyard as claimed in claim 1, it is characterized in that: each presses branch road (40) in its circuit breaker (31) access point setting and joint inspection described transmission line of electricity (21,22,23,24), and joint inspection presses branch road (40) by bonded assembly voltage transformer (41), outdoor high-voltage fuse (42), single-pole isolator (43) constitute successively.
3. sectional type kink switchyard as claimed in claim 2 is characterized in that: described and joint inspection presses branch road (40) outside to be connected to Zinc-Oxide Arrester (44) between transmission line of electricity (21,22,23,24) and ground.
4. sectional type as claimed in claim 1 kink switchyard is characterized in that: described switchyard by the unidirectional power transformer of bonded assembly (52), fuse switch (51) successively from 10kV through track (50) power taking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201318761U CN201998818U (en) | 2011-04-22 | 2011-04-22 | Segmented kink switch station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201318761U CN201998818U (en) | 2011-04-22 | 2011-04-22 | Segmented kink switch station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201998818U true CN201998818U (en) | 2011-10-05 |
Family
ID=44701583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201318761U Expired - Lifetime CN201998818U (en) | 2011-04-22 | 2011-04-22 | Segmented kink switch station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201998818U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103231667A (en) * | 2012-10-22 | 2013-08-07 | 中铁二院工程集团有限责任公司 | Double-track electrified railway section post main wiring with capacitive electrical device |
| CN111907380A (en) * | 2020-06-29 | 2020-11-10 | 中铁第一勘察设计院集团有限公司 | Direct-supply traction power supply system |
-
2011
- 2011-04-22 CN CN2011201318761U patent/CN201998818U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103231667A (en) * | 2012-10-22 | 2013-08-07 | 中铁二院工程集团有限责任公司 | Double-track electrified railway section post main wiring with capacitive electrical device |
| CN111907380A (en) * | 2020-06-29 | 2020-11-10 | 中铁第一勘察设计院集团有限公司 | Direct-supply traction power supply system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111005 |
|
| CX01 | Expiry of patent term |