CN205230793U - Urban rail transit pulls rectification and distribution hybrid transformer - Google Patents
Urban rail transit pulls rectification and distribution hybrid transformer Download PDFInfo
- Publication number
- CN205230793U CN205230793U CN201520979243.4U CN201520979243U CN205230793U CN 205230793 U CN205230793 U CN 205230793U CN 201520979243 U CN201520979243 U CN 201520979243U CN 205230793 U CN205230793 U CN 205230793U
- Authority
- CN
- China
- Prior art keywords
- winding
- pressure side
- transformer
- medium voltage
- middling pressure
- 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.)
- Active
Links
Landscapes
- Control Of Electrical Variables (AREA)
Abstract
The utility model provides an urban rail transit pulls rectification and distribution hybrid transformer, with urban rail transit power supply system pull step down to mix set up in the electric substation pull rectifier transformer and distribution transformer integrates to reduction equipment quantity, save space, reduce engineering scale and investment. Constitute three -phase three circuit transformer structure by high -pressure side triangle -shaped winding, middling pressure side star winding and middling pressure side triangle -shaped winding, middling pressure side star winding goes out line connection rectifier unit with middling pressure side triangle -shaped winding coil, and middling pressure side star winding coordinates 12 pulse waves of formation to draw rectifier transformer with middling pressure side triangle -shaped winding and high -pressure side triangle -shaped winding. Add the neutral point of taking a percentage and draw forth in each phase winding of middling pressure side star winding, voltage that the winding was drawn forth with move that to shine the load voltage grade the same, form distribution transformer with the cooperation of high -pressure side triangle -shaped winding, form and move the ability of shining the load and supplying power to the conventionality.
Description
Technical field
The utility model relates to urban track traffic direct-current traction power supply and distribution system, especially relates to a kind of traction rectifier and the distribution bridge transformer that are applied to traction step-down mixing electric substation.
Background technology
Urban track traffic is that operational vehicle is powered and usually adopted direct current mode, traction substation provides AC power by looped networks such as 35kV, 20kV or 10kV usually, by the traction rectifier transformer arranged in traction substation, supply voltage step-down is become direct current 1500V, 750V or 600V power supply etc. through rectifier, for this reason, in urban track traffic, traction substation is set along the line, places traction rectifier transformer and related electric and control appliance.Urban track traffic power load is except the traction load needed for vehicle operating, also there is the power loads such as Escalator, air conditioner, illumination, communication, signal, these power loads are referred to as dynamic according to load, for powering to dynamic according to load, arrange stepdown substation along the line in urban track traffic, stepdown substation provides power supply by looped networks such as 35kV, 20kV or 10kV equally, the distribution transformer arranged by stepdown substation, be 0.4kV by supply voltage step-down, provide electric energy for dynamic according to load.
In Feeding System of Urban Rail Transit, in most cases the traction substation of same location and stepdown substation are combined, become traction step-down mixing electric substation.
Special in the street railway engineering in urban track traffic, circuit is in the ground section in city substantially, for saving the ground traction step-down mixing project scale of electric substation and the floor space of drive, under the prerequisite ensureing system safety, the space hold of equipment should be reduced as far as possible.At present, domestic every platform traction rectifier transformer adopts three winding or four winding constructions, former limit (mains side) is one or two delta windings, and secondary limit (load side) is two windings (one of them is star winding, another is delta windings).Powering for meeting other 0.4kV of circuit lighting load powered by conventional energy simultaneously, also needing to arrange separately a set of distribution transformer.
Especially for the traction step-down mixing electric substation of similar tramcar engineering, owing to being substantially ground line engineering, regular distribution transformer demand capacity is very little, general at 100 ~ below 200kVA, according to such scheme, each mixing electric substation need arrange 2 transformers, one is traction rectifier transformer, other one is regular distribution transformer, every platform transformer correspondence arranges the electric equipments such as switch and corresponding control appliance simultaneously, number of devices is more, and space hold is bigger than normal, and project scale is higher with investment.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of urban track traffic traction rectifier and distribution bridge transformer, Feeding System of Urban Rail Transit is drawn the traction rectifier transformer that arranges and distribution transformer in step-down mixing electric substation to integrate, to reduce number of devices, save space, to reduce project scale and investment.
It is as follows that the utility model solves the technical scheme that its technical problem adopts:
A kind of urban track traffic traction rectifier of the present utility model and distribution bridge transformer, it is characterized in that: form three-phase three-winding transformer structure by high-pressure side delta windings, medium voltage side star winding and medium voltage side delta windings, medium voltage side star winding is connected Rectification Power Factor with the outlet of medium voltage side delta windings coil, and medium voltage side star winding and medium voltage side delta windings coordinate formation 12 pulse traction rectifier transformer with high-pressure side delta windings; In each phase winding of medium voltage side star winding, set up a tap and draw neutral point, the voltage that winding is drawn is identical according to load voltage grade with dynamic, coordinates and forms distribution transformer, formed and move the ability of powering according to load to routine with high-pressure side delta windings.
The beneficial effects of the utility model are, by the traction rectifier transformer in traction step-down mixing electric substation and distribution transformer being integrated, reduce the magnitude setting of transformer.On the one hand, for bridge transformer, its body all adopts conventional star and delta windings form, do not increase any winding, when increasing by 1 tapping in each phase winding of the only star-star connection of limit (load side) secondarily, farthest achieve sharing of the facilities such as iron core, shell, support, insulation and material, saved cost, saved resource; On the other hand, because number transformer reduces, the corresponding minimizing of quantity of the equipment such as the switch connected to transformer, also simplify control appliance simultaneously, saves equipment requisite space, reduce project scale and investment.Being particularly suitable for urban tram project electric substation all adopts ground to arrange, the actual conditions that its low-voltage distribution demand capacity is less, can save valuable urban land resource.
Accompanying drawing explanation
This specification comprises as next width accompanying drawing:
Fig. 1 is the structural representation of a kind of urban track traffic traction rectifier of the utility model and distribution bridge transformer.
Component shown in figure, component names and corresponding mark: high-pressure side delta windings 1, medium voltage side star winding 2 and medium voltage side delta windings 3, tap 4, extraction neutral point 5.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
With reference to Fig. 1, a kind of urban track traffic traction rectifier of the present utility model and distribution bridge transformer, three-phase three-winding transformer structure is formed by high-pressure side delta windings 1, medium voltage side star winding 2 and medium voltage side delta windings 3, medium voltage side star winding 2 is connected Rectification Power Factor with the outlet of medium voltage side delta windings 3 coil, and medium voltage side star winding 2 and medium voltage side delta windings 3 coordinate formation 12 pulse traction rectifier transformer with high-pressure side delta windings 1.In each phase winding of medium voltage side star winding 2, set up a tap 4 and draw neutral point 5, the voltage that winding is drawn is identical according to load voltage grade with dynamic, form distribution transformer for 0.4kV grade coordinates with high-pressure side delta windings 1, formed and move the ability of powering according to load to routine.
The utility model can realize the integration of drawing traction rectifier transformer and distribution transformer in step-down mixing electric substation, and solving electric pressure is that the traction loads such as direct current 1500V, 750V or 600V are powered and electric pressure is that the dynamic of 0.4kV is powered according to load.
The above the utility model that just explains through diagrams is applied to urban track traffic DC traction power-supply system, relate to a kind of being applied to and draw the step-down mixing traction rectifier of electric substation and some principles of distribution bridge transformer, be not the utility model to be confined to shown in and in described concrete structure and the scope of application, therefore, every corresponding modify of being likely utilized and equivalent, all belong to the scope of the claims that the utility model is applied for.
Claims (1)
1. a urban track traffic traction rectifier and distribution bridge transformer, it is characterized in that: form three-phase three-winding transformer structure by high-pressure side delta windings (1), medium voltage side star winding (2) and medium voltage side delta windings (3), medium voltage side star winding (2) is connected rectifier with medium voltage side delta windings (3) coil outlet, and medium voltage side star winding (2) and medium voltage side delta windings (3) coordinate formation 12 pulse traction rectifier transformer with high-pressure side delta windings (1); In each phase winding of medium voltage side star winding (2), set up a tap (4) and draw neutral point (5), the voltage that winding is drawn is identical according to load voltage grade with dynamic, coordinate with high-pressure side delta windings (1) and form distribution transformer, formed and move the ability of powering according to load to routine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520979243.4U CN205230793U (en) | 2015-12-01 | 2015-12-01 | Urban rail transit pulls rectification and distribution hybrid transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520979243.4U CN205230793U (en) | 2015-12-01 | 2015-12-01 | Urban rail transit pulls rectification and distribution hybrid transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205230793U true CN205230793U (en) | 2016-05-11 |
Family
ID=55905840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520979243.4U Active CN205230793U (en) | 2015-12-01 | 2015-12-01 | Urban rail transit pulls rectification and distribution hybrid transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205230793U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113808834A (en) * | 2021-09-09 | 2021-12-17 | 中铁二院工程集团有限责任公司 | Three-phase traction and electric power mixed type transformer for alternating current electrified rail transit engineering |
-
2015
- 2015-12-01 CN CN201520979243.4U patent/CN205230793U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113808834A (en) * | 2021-09-09 | 2021-12-17 | 中铁二院工程集团有限责任公司 | Three-phase traction and electric power mixed type transformer for alternating current electrified rail transit engineering |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205986303U (en) | Portable direct current emergency power source car | |
| CN105226969B (en) | Pressure energy feedback system and its method can be presented in power supply of city railway system twin coil access type | |
| CN103311950B (en) | City railway train regenerating braking energy absorbs system and method | |
| CN205632170U (en) | Low pressure contravariant repayment formula traction power supply system who contains energy storage | |
| CN107878228A (en) | The new auxiliary power supply system and method for a kind of emergent traveling of achievable EMUs | |
| CN103434420B (en) | Based on the Brake energy recovery formula DC traction power-supply system of charging electric vehicle | |
| CN103683983B (en) | Hybrid energy feedback type direct-current traction power supply device and control method | |
| CN104097526B (en) | A kind of double source trolleybus and its dynamical system | |
| CN201753029U (en) | Split-phase-free through power supply device for electrified railway | |
| CN103754124B (en) | The pure Electric Bus control system of a kind of electricity electricity mixing | |
| CN104325894A (en) | Multi-feeder combination type power supply and transformation construction | |
| CN104097527B (en) | A kind of new double source trolleybus and its dynamical system | |
| CN103419680A (en) | Direct-current traction power supply system based on distributed power supply | |
| CN208835750U (en) | A kind of comprehensive direct current system | |
| CN205230793U (en) | Urban rail transit pulls rectification and distribution hybrid transformer | |
| CN206759102U (en) | A kind of ground integrated energy corollary system of track traffic vehicle | |
| CN2807427Y (en) | Combined transformer | |
| CN102963272B (en) | Through cophase power supply system for alternating-current electrified railway | |
| CN105355403A (en) | Combined type transformer with functions of traction and power distribution | |
| CN206374574U (en) | A kind of metro traction power system | |
| CN207535708U (en) | A kind of achievable EMU is met an urgent need the novel auxiliary power supply system of traveling | |
| CN208015377U (en) | A kind of energy storage traction substation powered construction | |
| CN207559559U (en) | A kind of rail traffic tractive power supply system | |
| CN203423605U (en) | Integrated module of new energy automobile motor controller and DCDC converter | |
| CN203039366U (en) | Alternating-current electrified railway continuous cophase power supply device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |