CN207731773U - A kind of polygonal solid volume iron core loaded capacity regulating voltage regulating transformer - Google Patents
A kind of polygonal solid volume iron core loaded capacity regulating voltage regulating transformer Download PDFInfo
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- CN207731773U CN207731773U CN201820068483.2U CN201820068483U CN207731773U CN 207731773 U CN207731773 U CN 207731773U CN 201820068483 U CN201820068483 U CN 201820068483U CN 207731773 U CN207731773 U CN 207731773U
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Abstract
The utility model belongs to transformer technology field more particularly to a kind of polygonal solid volume iron core loaded capacity regulating voltage regulating transformer.Including polygonal oil tank, polygonal oil tank includes rectangular enclosure and trapezoidal enclosure, and rectangular enclosure and trapezoidal enclosure are integrally formed；Three-dimensional winding iron core, three-dimensional winding iron core are that triangular solid rolls up iron core, and triangular solid volume iron core is placed in the junction of polygonal oil tank rectangular enclosure and trapezoidal enclosure；The rich group coil of three-phase three, three three rich group coils are wrapped on three-dimensional winding iron core；Loaded capacity regulating voltage regulating switchs, and loaded capacity regulating voltage regulating switch is arranged in the fuel tank rectangular enclosure of three-dimensional winding iron core side；Accessory, three-phase three winding coil are connected by accessory with loaded capacity regulating voltage regulating switch.The utility model can change specified working capacity mode according to actual load and voltage condition and voltage branch point is converted, and reduces transformer itself no-load loss, realizes voltage adjustment, promote the economic operation level of power distribution station, improve supply voltage quality.
Description
Technical field
The utility model belongs to transformer technology field more particularly to a kind of polygonal solid volume iron core loaded capacity regulating voltage regulating
Transformer.
Background technology
Distribution transformer is the core and dominant loss equipment of power distribution network, and there are about more than 1,000 ten thousand station power distribution transformations in the whole nation at present
Device hanging net operation.With the fast development of Chinese society economy, power distribution network power load sharply increases, and apparent season is presented
Property and periodical power consumption characteristics, distribution transformer operation occur that overload scaling loss, no-load loss accounting are high, reactive loss is big, three-phase
The situations such as the serious imbalance of load.Especially rural power grids load, seasonal strong, Rate of average load is low, and rural area is used
Electric equipment gradually increases, and when busy farming season will appear transformer overload operation.
Using conventional non-excitation pressure adjustment or capacitance-adjustable transformer, needs often to carry out power failure operation to power grid, influence to supply
Electricity quality, transformer may be damaged by adjusting voltage and capacity not in time.
Although occur loaded capacity regulating voltage regulating transformer in power grid in recent years, the voltage and capacity of rural power grids are realized
Automatic adjustment, improves the stable operation of power grid, but is mainly folded based on iron core with plane.Such Three-Phase Transformer magnetic circuit is endless
Holohedral symmetry, noise is high, anti-sudden short circuit energy force difference, and core section selects circle just to can guarantee that different stalls variation is qualified, causes
The waste of material.
Utility model content
The utility model is directed to above-mentioned problem, in order to improve rural power grids power supply quality, saves product material and uses
Amount simplifies production process, provides a kind of polygonal solid volume iron core loaded capacity regulating voltage regulating transformer.
In order to achieve the above object, the technical solution adopted in the utility model is that the utility model provides a kind of polygon
Three-dimensional winding iron core loaded capacity regulating voltage regulating transformer, which is characterized in that including：
Polygonal oil tank, the polygonal oil tank include rectangular enclosure and trapezoidal enclosure, the rectangular enclosure and trapezoidal outer
Shell is integrally formed；
Three-dimensional winding iron core, the three-dimensional winding iron core are that triangular solid rolls up iron core, and the triangular solid volume iron core is placed in
The junction of rectangular enclosure and trapezoidal enclosure in polygonal oil tank；
The rich group coil of three-phase three, described three three rich group coils are wrapped on three-dimensional winding iron core；
Loaded capacity regulating voltage regulating switchs, and the loaded capacity regulating voltage regulating switch is arranged outside the fuel tank rectangle of three-dimensional winding iron core side
In shell；
Accessory, three-phase three winding coil are connected by the accessory with loaded capacity regulating voltage regulating switch.
Preferably, the accessory includes circular copper wire, cable, copper bar, wood clamp and iron clamp part.
Preferably, the rectangular enclosure side surface of the fuel tank is provided with controller.
Preferably, being provided with protective shell outside the controller.
Preferably, the fuel tank outer surface is provided with cooling fin.
Compared with prior art, it is with good effect the advantages of the utility model：
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, realizes voltage adjustment, promotes the economic operation level of power distribution station, improves power supply
Quality of voltage.
2, it can effectively solve the problem that power distribution network especially rural power grids caused by the seasonality or cyclically-varying feature of power load
No-load loss is high and the practical problems such as low-voltage reduce noise to improve the ability of transformer resistance to shorting, optimization magnetic circuit reduces
Unloaded and no-load current etc., while polygonal oil tank structure saves material, enhances the heat dissipation effect of transformer.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
The attached drawing used is briefly described, it should be apparent that, the accompanying drawings in the following description is some embodiments of the utility model,
For those of ordinary skill in the art, without having to pay creative labor, it can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is that a kind of polygonal solid that embodiment 1 provides rolls up iron core loaded capacity regulating voltage regulating inside transformer structural representation
Figure；
Fig. 2 is that a kind of polygonal solid that embodiment 1 provides rolls up iron core loaded capacity regulating voltage regulating transformer vertical view；
Fig. 3 is that a kind of polygonal solid volume iron core loaded capacity regulating voltage regulating transformer large capacity that embodiment 1 provides is principle
Figure；
Fig. 4 is that a kind of polygonal solid volume iron core loaded capacity regulating voltage regulating transformer low capacity that embodiment 1 provides is principle
Figure；
In above each figure, 1, polygonal oil tank；101, rectangular enclosure；102, trapezoidal enclosure；2, three-dimensional winding iron core；3, three
Three rich group coils；4, loaded capacity regulating voltage regulating switchs；5, controller；6, protective shell；7, cooling fin.
Specific implementation mode
It is below in conjunction with the accompanying drawings and real in order to be more clearly understood that the above objects, features, and advantages of the utility model
Example is applied to be described further the utility model.It should be noted that in the absence of conflict, embodiments herein and reality
The feature applied in example can be combined with each other.
Many details are elaborated in the following description in order to fully understand the utility model, still, this practicality
Novel to implement using different from other modes described here, therefore, the utility model is not limited to be described below
The limitation of the specific embodiment of specification.
Embodiment 1, as shown in Figures 1 to 4, the utility model provide a kind of polygonal solid volume loaded capacity-regulated tune of iron core
Pressure transformer.Main structure includes polygonal oil tank 1, from Fig. 1 and Fig. 2 it can be seen that polygonal oil tank 1 be by rectangle outside
Why the heptagon fuel tank that shell 101 and trapezoidal enclosure 102 form is designed to that structure as shown in the figure is because common has load
Although capacity and pressure regulating transformer realizes the automatic adjustment of the voltage and capacity of rural power grids, improve the stable operation of power grid,
But mainly folded based on iron core with plane, and such Three-Phase Transformer magnetic circuit non complete symmetry, noise are high, anti-sudden short circuit ability
Difference, core section selects circle just to can guarantee that different stalls variation is qualified, causes the waste of material, so the utility model changes
Conventional planar folds core structure, selects core structure of the three-dimensional winding iron core 2 as transformer, three-dimensional winding iron core 2 vertical for triangle
Body rolls up iron core, is arranged in the junction of rectangular enclosure 101 and trapezoidal enclosure 102.
Be wound with the rich group coil 3 of three-phase three on three-dimensional winding iron core 2, divide A, B, C three-phase, single coil distributing order from it is inner to
It is followed successively by low pressure Primary layer, low pressure connection in series-parallel layer, high pressure zone outside, wherein consistent per the axial height of three windings of phase.With A phase lines
For circle, low pressure Primary layer is sped structure, right around to respectively going out a head up and down, label is above, identified below to be
x2’；Low pressure connection in series-parallel layer is the double-deck segmental structure, above a left side around to, below the right side around to label is and x1 to go out below above
Leader is denoted as x2 and a2.High-tension coil is layered structure, equally by taking A phase coils as an example, lifts one's head quantity according to actual needs, at most
9 heads can be taken out, in addition the first head of power supply, marks A, X1-X9 respectively.By the rich group coil 3 of three-phase three by being arranged in polygonal oil tank 1
In accessory be connected with loaded capacity regulating voltage regulating switch 4 because accessory is common circular copper wire, electricity in existing loaded capacity-regulated transformer
The devices such as cable, copper bar, wood clamp and iron clamp part, so not embodied in figure.By taking A phase connections as an example, the first head A of high pressure meets switch A,
Leading to A phase casings；High-voltage tap X1-X9 correspondences meet switch X1-X9；Low pressure basal layer x connects 0 phase casing；Low pressure basal layer x2 '
With the x2 of low pressure connection in series-parallel layer and be connected to switch x2；Low pressure connection in series-parallel layer a1 connects low pressure a phase casings and is connected in parallel to switch a1；Low pressure string
Shunt layer x1 meets switch x1；Low pressure connection in series-parallel layer a2 meets switch a2.Bushing group 8 and low pressure are apparent that from Fig. 2
The position of casing group 9.
Because the structure of three-dimensional winding iron core 2 is triangle, i.e., three-phase coil is arranged at " product " word, and Oiltank structure is using rectangular
Shape structure can cause the waste to transformer oil, by the fuel tank that parallelogram sturcutre designs, although equally saving material utilization amount,
But meeting butted line causes certain difficulty.The polygonal oil tank 1 of this programme totally 7 faces, remain the shape of common transformer, will have
Load capacity and pressure regulating switch 4 is reasonably arranged in the side of three-dimensional winding iron core 2, that is, 1 rectangular enclosure 101 of polygonal oil tank,
Arrangement is more reasonable, and material utilization amount is few.
The operation principle of the utility model is：By the way that the control in 1 rectangular enclosure of polygonal oil tank, 101 side surface is arranged
Device 5 acquires three-phase voltage, three-phase current, three phases active power, three phase reactive power, the total wattful power of step down side
Rate, total reactive power, total apparent energy.If low-pressure side voltage fluctuation exceeds setting range, controller 5 sends out instruction, passes through
The motor drive mechanism of switch internal adjusts the shunting tap of transformer, reaches pressure regulation purpose；When the maximum current in three-phase is less than
Transformer low capacity electric current 60% when, controller 5 sends out drop and holds instruction, makes switch motion, adjustment transformer to low capacity fortune
Row, when the maximum current in three-phase is more than the 60% of transformer low capacity, controller 5 sends out instruction, and transformer is made to be raised to height
Capacity is run, and as shown in Figure 3 and Figure 4, this transformer has two capacity of height, voltage that can be adjusted by a certain range, ensures low
Press side output rated voltage always.High voltage D connection when high power capacity, low pressure is in parallel, and connection group is Dyn11；High pressure Y when low capacity
It connects, low voltage series, connection group is Yyn0.
Particularly, because the polygonal oil tank 1 designed by the utility model makes it have more surfaces, in fuel tank
The 7 area bigger of cooling fin of outer setting, it is more preferable to be allowed to heat dissipation effect；In addition because controller 5 is provided in polygonal oil tank 1
Outside is provided with a protective shell 6 in the outside of controller 5, extends making for controller 5 to preferably be protected to it
Use the service life.
The above descriptions are merely preferred embodiments of the present invention, is not to make other forms to the utility model
Limitation, any person skilled in the art is changed or is modified as possibly also with the technology contents of the disclosure above equivalent
The equivalent embodiment of variation is applied to other fields, but every without departing from the content of the technical scheme of the utility model, according to this reality
With novel technical spirit to any simple modification, equivalent variations and remodeling made by above example, it is new to still fall within this practicality
The protection domain of type technical solution.
Claims (5)
1. a kind of polygonal solid rolls up iron core loaded capacity regulating voltage regulating transformer, which is characterized in that including：
Polygonal oil tank, the polygonal oil tank include rectangular enclosure and trapezoidal enclosure, the rectangular enclosure and trapezoidal enclosure one
It is body formed；
Three-dimensional winding iron core, the three-dimensional winding iron core are that triangular solid rolls up iron core, and the triangular solid volume iron core is placed in polygon
The junction of rectangular enclosure and trapezoidal enclosure in shape fuel tank；
The rich group coil of three-phase three, the rich group coil of the three-phase three are wrapped on three-dimensional winding iron core；
Loaded capacity regulating voltage regulating switchs, and the fuel tank rectangular enclosure in three-dimensional winding iron core side is arranged in the loaded capacity regulating voltage regulating switch
It is interior；
Accessory, three-phase three winding coil are connected by the accessory with loaded capacity regulating voltage regulating switch.
2. a kind of polygonal solid rolls up iron core loaded capacity regulating voltage regulating transformer according to claim 1, it is characterised in that：It is described
Accessory includes circular copper wire, cable, copper bar, wood clamp and iron clamp part.
3. a kind of polygonal solid rolls up iron core loaded capacity regulating voltage regulating transformer according to claim 1, it is characterised in that：It is described
The rectangular enclosure side surface of fuel tank is provided with controller.
4. a kind of polygonal solid rolls up iron core loaded capacity regulating voltage regulating transformer according to claim 3, it is characterised in that：It is described
It is provided with protective shell outside controller.
5. a kind of polygonal solid rolls up iron core loaded capacity regulating voltage regulating transformer according to claim 1, it is characterised in that：It is described
Fuel tank outer surface is provided with cooling fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820068483.2U CN207731773U (en) | 2018-01-16 | 2018-01-16 | A kind of polygonal solid volume iron core loaded capacity regulating voltage regulating transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820068483.2U CN207731773U (en) | 2018-01-16 | 2018-01-16 | A kind of polygonal solid volume iron core loaded capacity regulating voltage regulating transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207731773U true CN207731773U (en) | 2018-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820068483.2U Active CN207731773U (en) | 2018-01-16 | 2018-01-16 | A kind of polygonal solid volume iron core loaded capacity regulating voltage regulating transformer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108257765A (en) * | 2018-01-16 | 2018-07-06 | 丹东天楾电气有限公司 | A kind of polygonal solid rolls up iron core loaded capacity regulating voltage regulating transformer |
-
2018
- 2018-01-16 CN CN201820068483.2U patent/CN207731773U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108257765A (en) * | 2018-01-16 | 2018-07-06 | 丹东天楾电气有限公司 | A kind of polygonal solid rolls up iron core loaded capacity regulating voltage regulating transformer |
| CN108257765B (en) * | 2018-01-16 | 2024-10-11 | 丹东天楾电气有限公司 | Polygonal three-dimensional coiled iron core on-load capacity-regulating voltage-regulating transformer |
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