CN108257765A - A kind of polygonal solid rolls up iron core loaded capacity regulating voltage regulating transformer - Google Patents
A kind of polygonal solid rolls up iron core loaded capacity regulating voltage regulating transformer Download PDFInfo
- Publication number
- CN108257765A CN108257765A CN201810040706.9A CN201810040706A CN108257765A CN 108257765 A CN108257765 A CN 108257765A CN 201810040706 A CN201810040706 A CN 201810040706A CN 108257765 A CN108257765 A CN 108257765A
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- Prior art keywords
- iron core
- loaded capacity
- polygonal
- enclosure
- voltage regulating
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/22—Cooling by heat conduction through solid or powdered fillings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/341—Preventing or reducing no-load losses or reactive currents
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
- H01F29/025—Constructional details of transformers or reactors with tapping on coil or windings
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformer Cooling (AREA)
Abstract
The invention belongs to transformer technology field more particularly to a kind of polygonal solid volume iron core loaded capacity regulating voltage regulating transformers.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 roll up iron core for triangular solid, 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 present invention 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, promotes the economic operation level of power distribution station, improve supply voltage quality.
Description
Technical field
The invention belongs to transformer technology field more particularly to a kind of polygonal solid volume iron core loaded capacity regulating voltage regulating transformations
Device.
Background technology
Distribution transformer is the core of power distribution network and dominant loss equipment, 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.Particularly 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, need 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.
Invention content
The present invention is directed to the problem of above-mentioned, in order to improve rural power grids power supply quality, saves product material dosage, letter
Change production process, a kind of polygonal solid volume iron core loaded capacity regulating voltage regulating transformer is provided.
In order to achieve the above object, the technical solution adopted by the present invention is that the present invention provides a kind of polygonal solid volume 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 roll up iron core for triangular solid, 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 on 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, it is provided with protective shell outside the controller.
Preferably, the fuel tank outer surface is provided with cooling fin.
Compared with prior art, the advantages and positive effects of the present invention are：
1st, the present invention can change specified working capacity mode according to actual load and voltage condition and voltage branch point is converted,
Transformer itself no-load loss is reduced, realizes voltage adjustment, the economic operation level of power distribution station is promoted, improves supply voltage matter
Amount.
2nd, it can effectively solve the problem that power distribution network especially rural power grids caused by the seasonality of power load or cyclically-varying feature
No-load loss is high and the practical problems such as low-voltage, to improve the ability of transformer resistance to shorting, reduce noise, 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
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is some embodiments of the present invention, for ability
For the those of ordinary skill of domain, without having to pay creative labor, others are can also be obtained according to these attached drawings
Attached drawing.
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；101st, rectangular enclosure；102nd, trapezoidal enclosure；2nd, three-dimensional winding iron core；3rd, three
Three rich group coils；4th, loaded capacity regulating voltage regulating switchs；5th, controller；6th, protective shell；7th, cooling fin.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawings and examples
The present invention will be further described.It should be noted that in the absence of conflict, in embodiments herein and embodiment
Feature can be combined with each other.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
With using implementing different from other modes described here, therefore, the present invention is not limited to the specific of specification is described below
The limitation of embodiment.
Embodiment 1, as shown in Figures 1 to 4, the present invention provides a kind of polygonal solid volume iron core loaded capacity regulating voltage regulatings to become
Depressor.Main structure includes polygonal oil tank 1, it can be seen that polygonal oil tank 1 is by rectangular enclosure 101 from Fig. 1 and Fig. 2
The heptagon fuel tank formed with trapezoidal enclosure 102, it is because common is loaded capacity-regulated why to be designed to structure as depicted
Although adjustable transformer realizes the automatic adjustment of the voltage and capacity of rural power grids, improve the stable operation of power grid, still
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 energy force difference,
It is qualified that core section selects circle just to can guarantee that different stalls change, and causes the waste of material, so the present invention changes tradition and puts down
Core structure is folded in face, selects core structure of the three-dimensional winding iron core 2 as transformer, and three-dimensional winding iron core 2 rolls up iron for triangular solid
Core is arranged on the junction of rectangular enclosure 101 and trapezoidal enclosure 102.
The rich group coil 3 of three-phase three is wound on three-dimensional winding iron core 2, divides A, B, C three-phase, single coil distributing order from it is inner to
Low pressure Primary layer, low pressure connection in series-parallel layer, high pressure zone are followed successively by 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 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 on polygonal oil tank 1
In accessory and loaded capacity regulating voltage regulating switch 4 be connected 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 being 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 into " product " word, and Oiltank structure is using rectangular
Shape structure can cause the waste to transformer oil, by parallelogram sturcutre design fuel tank, 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 present invention operation principle be：By the controller 5 for being arranged on 1 rectangular enclosure of polygonal oil tank, 101 side surface
Acquire the three-phase voltage of step down side, 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 is beyond setting range, controller 5 sends out instruction, by switch
The motor drive mechanism in portion 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, and adjustment transformer is to low capacity operation, when three
When maximum current in phase is more than the 60% of transformer low capacity, controller 5 sends out instruction, and transformer is made to be raised to high power capacity fortune
Row, as shown in Figure 3 and Figure 4, this transformer have two capacity of height, and voltage can be adjusted by a certain range, ensure that low-pressure side begins
Whole output rated voltage.High voltage D connection during high power capacity, low pressure is in parallel, and connection group is Dyn11；High pressure Y connects during low capacity, low pressure
Series connection, connection group are Yyn0.
Particularly, because the polygonal oil tank 1 designed by the present invention makes it have more surfaces, in fuel tank peripheral hardware
The 7 area bigger of cooling fin put, it is more preferable to be allowed to heat dissipation effect；In addition because controller 5 is provided in the outer of polygonal oil tank 1
Portion in order to preferably be protected to it, is provided with a protective shell 6 in the outside of controller 5, extends the use of controller 5
Service life.
The above described is only a preferred embodiment of the present invention, being not that the invention has other forms of limitations, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
It imitates embodiment and is applied to other fields, but it is every without departing from technical solution of the present invention content, technical spirit according to the present invention
To any simple modification, equivalent variations and remodeling that above example is made, the protection domain of technical solution of the present invention is still fallen within.
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 roll up iron core for triangular solid, 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, 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 on the fuel tank rectangular enclosure of three-dimensional winding iron core side
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 volume 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 volume 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 volume iron core loaded capacity regulating voltage regulating transformer according to claim 3, it is characterised in that：It is described
Protective shell is provided with outside controller.
5. a kind of polygonal solid volume 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 |
|---|---|---|---|
| CN201810040706.9A CN108257765A (en) | 2018-01-16 | 2018-01-16 | A kind of polygonal solid rolls up iron core loaded capacity regulating voltage regulating transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810040706.9A CN108257765A (en) | 2018-01-16 | 2018-01-16 | A kind of polygonal solid rolls up iron core loaded capacity regulating voltage regulating transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108257765A true CN108257765A (en) | 2018-07-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810040706.9A Pending CN108257765A (en) | 2018-01-16 | 2018-01-16 | A kind of polygonal solid rolls up iron core loaded capacity regulating voltage regulating transformer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109494055A (en) * | 2018-12-18 | 2019-03-19 | 辽宁易德实业集团有限公司 | Intelligent vacuum arc extinguishing three-dimensional winding iron core capacity and pressure regulating transformer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201332007Y (en) * | 2009-01-12 | 2009-10-21 | 哈尔滨共乐电力科技发展有限公司 | Amorphous alloy on-load voltage regulation transformer |
| CN204117772U (en) * | 2014-07-17 | 2015-01-21 | 海鸿电气有限公司 | Oil tank on a kind of 110kV and above three dimensional wound core transformer |
| CN104681255A (en) * | 2013-11-28 | 2015-06-03 | 河南富达精工电气高科技有限公司 | Method for wiring on-load, capacity-regulating and voltage-regulating transformer with triangular three-dimensional reel iron core |
| CN206134467U (en) * | 2016-06-28 | 2017-04-26 | 陕西四方华能电气设备有限公司 | Automatic on -load voltage regulation distribution transformer structure of broad width |
| CN207731773U (en) * | 2018-01-16 | 2018-08-14 | 丹东天楾电气有限公司 | A kind of polygonal solid volume iron core loaded capacity regulating voltage regulating transformer |
-
2018
- 2018-01-16 CN CN201810040706.9A patent/CN108257765A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201332007Y (en) * | 2009-01-12 | 2009-10-21 | 哈尔滨共乐电力科技发展有限公司 | Amorphous alloy on-load voltage regulation transformer |
| CN104681255A (en) * | 2013-11-28 | 2015-06-03 | 河南富达精工电气高科技有限公司 | Method for wiring on-load, capacity-regulating and voltage-regulating transformer with triangular three-dimensional reel iron core |
| CN204117772U (en) * | 2014-07-17 | 2015-01-21 | 海鸿电气有限公司 | Oil tank on a kind of 110kV and above three dimensional wound core transformer |
| CN206134467U (en) * | 2016-06-28 | 2017-04-26 | 陕西四方华能电气设备有限公司 | Automatic on -load voltage regulation distribution transformer structure of broad width |
| CN207731773U (en) * | 2018-01-16 | 2018-08-14 | 丹东天楾电气有限公司 | A kind of polygonal solid volume iron core loaded capacity regulating voltage regulating transformer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109494055A (en) * | 2018-12-18 | 2019-03-19 | 辽宁易德实业集团有限公司 | Intelligent vacuum arc extinguishing three-dimensional winding iron core capacity and pressure regulating transformer |
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