CN209461280U - Loaded capacity regulating voltage regulating transformer - Google Patents
Loaded capacity regulating voltage regulating transformer Download PDFInfo
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- CN209461280U CN209461280U CN201920408497.9U CN201920408497U CN209461280U CN 209461280 U CN209461280 U CN 209461280U CN 201920408497 U CN201920408497 U CN 201920408497U CN 209461280 U CN209461280 U CN 209461280U
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Abstract
The utility model discloses a kind of loaded capacity regulating voltage regulating transformers, including fuel tank, iron core, loaded capacity regulating voltage regulating switch and winding coil, fuel tank is corrugated tank, iron core is amorphous alloy iron core, winding coil is three-phase three winding coil, three-phase three winding coil is respectively the series-parallel layer of low pressure, low voltage series Primary layer and high pressure zone, the series-parallel layer of low pressure, successively suit is lower than on amorphous alloy iron core with one heart for low voltage series Primary layer and high pressure zone, loaded capacity regulating voltage regulating switch is set to above amorphous alloy iron core, bushing is provided on corrugated tank, low-tension bushing and zero phase casing, high pressure zone connects bushing by loaded capacity regulating voltage regulating switch, the series-parallel layer of low pressure and low voltage series Primary layer are switched by loaded capacity regulating voltage regulating connects low-tension bushing, the series-parallel layer of low pressure also with zero phase casing connection, three-phase three winding coil, Amorphous alloy iron core and loaded capacity regulating voltage regulating switch are placed in inside corrugated tank.
Description
Technical field
The utility model relates to field transformers, specifically disclose a kind of loaded capacity regulating voltage regulating transformer.
Background technique
Distribution transformer (distribution transforming) is key equipment of the power grid to customer power supply.There are about more than 1,000 ten thousand station power distributions in the whole nation at present
Transformer is in hanging net operation.Distribution network load changes greatly, and seasonal and day-night change is obvious, distribution transforming heavy-overload scaling loss risk height,
The outstanding problems such as light zero load electric energy loss height, national tens of thousands of of distribution transforming heavy-overload year scaling loss, no-load loss are up to 153,800,000,000 kilowatt hours
(1.5 times of Three Gorges annual electricity generating capacities), direct economic loss are more than 78,000,000,000 yuan, are influenced huge.
Loaded capacity-regulated transformer is that a kind of adaptive load band carries and adjusts transformer capacity size, transformer is kept to be in peace
The novel transformer of full economical operation state, can effectively avoid distribution transforming heavy-overload scaling loss, no-load loss is greatly lowered.With me
The fast development of social economy, state, power distribution network power load sharply increase, and it is special that apparent seasonal and periodical electricity consumption is presented
There is overload scaling loss, no-load loss accounting height, big, the serious imbalance of three-phase load of reactive loss etc. in point, distribution transformer operation
Situation.Using conventional non-excitation pressure adjustment or capacitance-adjustable transformer, needs often to carry out power failure operation to power grid, influence matter of powering
Amount, transformer may be damaged by adjusting voltage and capacity not in time.Although occurring loaded capacity-regulated tune in power grid in recent years
Pressure transformer realizes the automatic adjustment of the voltage and capacity of rural power grids, improves the stable operation of power grid, but mainly with
Plane is folded based on iron core.Such transformer is three-phase transformer, and no-load loss is bigger than normal, causes a large amount of electricity expense.
Utility model content
The utility model aim is providing a kind of loaded capacity regulating voltage regulating transformer, to solve that transformer exists in the prior art
The big technological deficiency of no-load loss.
To achieve the above object, the utility model provides a kind of loaded capacity regulating voltage regulating transformer, including fuel tank, iron core,
Loaded capacity regulating voltage regulating switch and winding coil, fuel tank are corrugated tank, and iron core is amorphous alloy iron core, and winding coil is three-phase
Three winding coil, three-phase three winding coil are respectively the series-parallel layer of low pressure, low voltage series Primary layer and high pressure zone, and low pressure string is simultaneously
Joining layer, low voltage series Primary layer and high pressure zone, successively loaded on amorphous alloy iron core, loaded capacity regulating voltage regulating switch is set concentric locking collar
It is placed in above amorphous alloy iron core, is provided with bushing, low-tension bushing and zero phase casing, high pressure zone on corrugated tank and passes through
Loaded capacity regulating voltage regulating switch connects bushing, the series-parallel layer of low pressure and low voltage series Primary layer and is switched by loaded capacity regulating voltage regulating
Connect low-tension bushing, the series-parallel layer of low pressure also with zero phase casing connection, three-phase three winding coil, amorphous alloy iron core and loaded capacity-regulated
Tap changer is placed in inside corrugated tank.
Preferably, the axial height of each three windings of phase of three-phase three winding coil is consistent.
Preferably, transformer further includes controller, and controller and loaded capacity regulating voltage regulating switch connect.
Preferably, transformer further includes cooling fin, and cooling fin is installed on the outside of corrugated tank.
Preferably, low voltage series Primary layer is sped structure, Zuo Raoxiang, including first head I 1 and last head I 2, last head I 2 with
Zero phase casing connection, first head I 1 are connect with the series-parallel layer of low pressure.
Preferably, the series-parallel layer of low pressure is double-layer structure, Zuo Raoxiang, including first head II 1, first head III 1 and last head II 2, end
First III 2, first head II 1 switchs connection, last head II 2 and first head I 1 with loaded capacity regulating voltage regulating and is connected to loaded capacity regulating voltage regulating switch, and III 1
It is connected to low-tension bushing by loaded capacity regulating voltage regulating switch, last head III 2 is connected directly to loaded capacity regulating voltage regulating switch.
Preferably, transformer further includes protective shell, and protective shell is set to outside controller.
The utility model has the following beneficial effects:
1, the utility model can change specified working capacity mode and voltage branch point according to actual load and voltage condition
Conversion reduces transformer itself no-load loss to a greater extent, realizes voltage adjustment, promotes the economic operation level in distribution region,
Supply voltage quality is improved, the no-load loss of transformer itself is greatly reduced.
2, can effectively solve the problem that power distribution network especially rural power grids because power load seasonality or cyclically-varying feature caused by
No-load loss is high and practical problems, the optimization power grid quality such as low-voltage reduce unloaded and no-load current etc..
Below with reference to accompanying drawings, the utility model is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide a further understanding of the present invention, the utility model
Illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.In attached drawing
In:
Fig. 1 is a kind of loaded capacity regulating voltage regulating transformer main view that the preferred embodiment in the utility model provides；
Fig. 2 is a kind of loaded capacity regulating voltage regulating transformer side view that the preferred embodiment in the utility model provides；
Fig. 3 is that a kind of amorphous alloy iron core for loaded capacity regulating voltage regulating transformer that the preferred embodiment in the utility model provides shows
It is intended to；
Fig. 4 is the same transformation in a kind of loaded capacity regulating voltage regulating transformer switch high-pressure side that the preferred embodiment in the utility model provides
Device coil docks wiring diagram；
Fig. 5 is a kind of same transformation of loaded capacity regulating voltage regulating transformer switch low-pressure side that the preferred embodiment in the utility model provides
Device coil docks wiring diagram.
Wherein, 1, corrugated tank；2, amorphous alloy iron core；3, loaded capacity regulating voltage regulating switchs；4, three-phase three winding coil；5,
Controller；6, bushing；7, low-tension bushing；8, zero phase casing.
Specific embodiment
The embodiments of the present invention are described in detail below in conjunction with attached drawing, but the utility model can be by right
It is required that the multitude of different ways for limiting and covering is implemented.
The utility model provides a kind of loaded capacity regulating voltage regulating transformer, referring to Fig. 1, including it is fuel tank, iron core, loaded capacity-regulated
Tap changer 3 and winding coil, fuel tank be corrugated tank 1, iron core be amorphous alloy iron core 2, winding coil be three-phase three around
Group coil 4, three-phase three winding coil 4 are respectively that the series-parallel layer of low pressure, low voltage series Primary layer and high pressure zone, low pressure are series-parallel
Successively suit is lower than on amorphous alloy iron core 2 with one heart for layer, low voltage series Primary layer and high pressure zone, loaded capacity regulating voltage regulating switch 3
It is set to 2 top of amorphous alloy iron core, is provided with bushing 6, low-tension bushing 7 and zero phase casing 8 on corrugated tank 1, it is high
Pressurized layer connects bushing 6, the series-parallel layer of low pressure and low voltage series Primary layer by there is load to adjust by loaded capacity regulating voltage regulating switch 3
Hold tap changer 3 and connect low-tension bushing 7, the series-parallel layer of low pressure is also connect with zero phase casing 8, three-phase three winding coil 4, amorphous alloy
Iron core 2 and loaded capacity regulating voltage regulating switch 3 are placed in inside corrugated tank 1.
Referring to figs. 2 and 3, the amorphous alloy iron core 2 of this implementation is a kind of three-phase and five-pole being made of four frames or eight frames
Formula iron core, three-phase three winding coil 4 are sleeved in three iron core columns among amorphous alloy iron core 2, each phase be set in
In one of iron core column.The winding of each phase be all by the series-parallel layer of low pressure, low voltage series Primary layer and high pressure zone successively
Concentric locking collar is loaded in iron core column.Three-phase three winding coil 4 is connected to loaded capacity regulating voltage regulating switch 3 by accessory, and accessory includes
Circular copper wire, copper bar, wood clamp and folder etc..Amorphous alloy iron core 2 is generally three-phase five-limb iron core, and four frames or eight frames are according to change
Depending on depressor amount of capacity.
Preferably, the axial height of each three windings of phase of three-phase three winding coil 4 is consistent.
The axial height of each three windings of phase of phase three winding coil can unanimously guarantee that end turn is smooth, reduce ampere-turn
Degree of unbalancedness improves the mechanical strength of product.
Preferably, transformer further includes controller 5, and controller 5 is connect with loaded capacity regulating voltage regulating switch 3.
By be arranged in 1 rectangular enclosure side surface of corrugated tank controller 5 acquire step down side three-phase voltage,
Three-phase current, three phases active power, three phase reactive power, total active power, total reactive power, total apparent energy.If low pressure
Side voltage fluctuation exceeds setting range, and controller 5 issues instruction, and point of transformer is adjusted by the motor drive mechanism of switch internal
Tap is connect, pressure regulation purpose is reached；When the maximum current in three-phase is less than the 60% of transformer low capacity electric current, controller 5 is sent out
Drop holds instruction out, makes switch motion, and adjustment transformer to low capacity is run, when the maximum current in three-phase is greater than transformer little Rong
Amount 60% when, controller 5 issue instruction, make transformer be raised to high capacity operation, as shown in Figure 4 and Figure 5, this transformer has height
Low two capacity, voltage is adjustable by a certain range, guarantees low-pressure side output rated voltage always.
For the qualitative explanation of winding: high voltage D connection when high capacity, the series-parallel layer of low pressure are in parallel then basic with low voltage series
Layer, connection group are Dyn11；High pressure Y connects when low capacity, and the series connection of low pressure shunt layer with low voltage series Primary layer, connects group again
For Yyn0.
Preferably, transformer further includes cooling fin, and cooling fin is installed on 1 outside of corrugated tank.
Cooling fin can guarantee the heat-sinking capability of transformer, postpone the service life of transformer.
Preferably, low voltage series Primary layer is sped structure, Zuo Raoxiang, including first head I 1 and last head I 2, last head I 2 with
The connection of zero phase casing 8, first head I 1 are connect with the series-parallel layer of low pressure.
Preferably, the series-parallel layer of low pressure is double-layer structure, Zuo Raoxiang, including first head II 1, first head III 1 and last head II 2, end
First III 2, first head II 1 is connect with loaded capacity regulating voltage regulating switch 3, and last head II 2 and first head I 1 are simultaneously connected to loaded capacity regulating voltage regulating switch 3,
III 1 are connected to low-tension bushing 7 by loaded capacity regulating voltage regulating switch 3, and last head III 2 is connected directly to loaded capacity regulating voltage regulating switch 3.
Capacity regulating is realized by above-mentioned bus connection method.
Preferably, transformer further includes protective shell, and protective shell is set to outside controller 5.
Protective shell can play the role of protection to controller 5, extend the service life of controller 5.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (7)
1. loaded capacity regulating voltage regulating transformer, including fuel tank, iron core, loaded capacity regulating voltage regulating switch (3) and winding coil, feature
It is, the fuel tank is corrugated tank (1), and the iron core is amorphous alloy iron core (2), and the winding coil is three-phase three winding
Coil (4), three-phase three winding coil (4) are respectively the series-parallel layer of low pressure, low voltage series Primary layer and high pressure zone, the low pressure
Successively concentric locking collar is loaded on the amorphous alloy iron core (2) for series-parallel layer, the low voltage series Primary layer and the high pressure zone,
The loaded capacity regulating voltage regulating switch (3) is set to above the amorphous alloy iron core (2), is provided on the corrugated tank (1)
Bushing (6), low-tension bushing (7) and zero phase casing (8), the high pressure zone connect height by loaded capacity regulating voltage regulating switch (3)
Pressing sleeve pipe (6), the series-parallel layer of low pressure and the low voltage series Primary layer connect low pressure by loaded capacity regulating voltage regulating switch (3)
Casing (7), the series-parallel layer of low pressure are also connect with the zero phase casing (8), the three-phase three winding coil (4), described non-
It is internal that peritectic alloy iron core (2) and loaded capacity regulating voltage regulating switch (3) are placed in the corrugated tank (1).
2. loaded capacity regulating voltage regulating transformer according to claim 1, which is characterized in that the three-phase three winding coil (4)
The axial height of each three windings of phase is consistent.
3. loaded capacity regulating voltage regulating transformer according to claim 1, which is characterized in that the transformer further includes controller
(5), the controller (5) connect with loaded capacity regulating voltage regulating switch (3).
4. loaded capacity regulating voltage regulating transformer according to claim 1, which is characterized in that the transformer further includes heat dissipation
Piece, the cooling fin are installed on the outside of the corrugated tank (1).
5. loaded capacity regulating voltage regulating transformer according to claim 1, which is characterized in that the low voltage series Primary layer is spiral shell
Rotating structure, Zuo Raoxiang, including first head I 1 and last head I 2, the end head I 2 are connect with the zero phase casing (8), the first head I 1
It is connect with the series-parallel layer of the low pressure.
6. loaded capacity regulating voltage regulating transformer according to claim 5, which is characterized in that the series-parallel layer of low pressure is bilayer
Structure, Zuo Raoxiang, including first head II 1, first head III 1 and last head II 2, last head III 2, the first head II 1 and the loaded capacity-regulated tune
Compress switch (3) connection, and the end head II 2 and first head I 1 are simultaneously connected to the loaded capacity regulating voltage regulating switch (3), and the first head III 1 is logical
It crosses the loaded capacity regulating voltage regulating switch (3) to be connected to low-tension bushing (7), last head III 2 is connected directly to the loaded capacity regulating voltage regulating
It switchs (3).
7. loaded capacity regulating voltage regulating transformer according to claim 3, which is characterized in that the transformer further includes protection
Shell, it is external that the protective shell is set to the controller (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920408497.9U CN209461280U (en) | 2019-03-28 | 2019-03-28 | Loaded capacity regulating voltage regulating transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920408497.9U CN209461280U (en) | 2019-03-28 | 2019-03-28 | Loaded capacity regulating voltage regulating transformer |
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| Publication Number | Publication Date |
|---|---|
| CN209461280U true CN209461280U (en) | 2019-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920408497.9U Active CN209461280U (en) | 2019-03-28 | 2019-03-28 | Loaded capacity regulating voltage regulating transformer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109786087A (en) * | 2019-03-28 | 2019-05-21 | 湖南德沃普电气股份有限公司 | Winding coil and transformer based on rib lattice glue composite flexible material |
| CN109786091A (en) * | 2019-03-28 | 2019-05-21 | 湖南德沃普电气股份有限公司 | Loaded capacity regulating voltage regulating transformer |
-
2019
- 2019-03-28 CN CN201920408497.9U patent/CN209461280U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109786087A (en) * | 2019-03-28 | 2019-05-21 | 湖南德沃普电气股份有限公司 | Winding coil and transformer based on rib lattice glue composite flexible material |
| CN109786091A (en) * | 2019-03-28 | 2019-05-21 | 湖南德沃普电气股份有限公司 | Loaded capacity regulating voltage regulating transformer |
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