CN208622519U - A kind of shunt capacitor differential pressure type discharge coil - Google Patents
A kind of shunt capacitor differential pressure type discharge coil Download PDFInfo
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- CN208622519U CN208622519U CN201820873854.4U CN201820873854U CN208622519U CN 208622519 U CN208622519 U CN 208622519U CN 201820873854 U CN201820873854 U CN 201820873854U CN 208622519 U CN208622519 U CN 208622519U
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Abstract
The utility model discloses a kind of shunt capacitor differential pressure type discharge coils, including the first winding and primary connection terminal rotating around 2 series connections on two iron cores, the primary connection terminal includes left connecting terminal (A), public terminal (A1) and right connecting terminal (X), the first winding of the discharge coil uses the cylindrical coil structure coiling concentric with core section circumscribed circle, the structure that first and end is lifted one's head respectively on the inside and outside circumference of the cylindrical layer winding.The utility model can reduce line backpack body product, core dimensions, improve space utilization rate and insulation usage factor, and keep product high and low pressure electric field between electrodes more uniform, and a kind of material economy is consequently formed, the shunt capacitor discharge coil that cost reduces, technical and economic performance improves.
Description
Technical field
The utility model relates to a kind of shunt capacitor differential pressure type discharge coils, belong to capacitor technology field.
Background technique
The first winding knot of differential pressure type discharge coil of original high-voltage parallel capacitor with first winding public terminal
Structure, be with the common single-phase first winding structure without first winding public terminal discharge coil as, without first winding
Public terminal discharge coil is as shown in Figure 1, side by side put the body of two common discharge coils together, and by first winding head
Tail is connected, and the product being integrally formed just forms the discharge coil with first winding public terminal, as shown in Figure 2.It is original
The shortcomings that structure has: the performance characteristics that product is not directed to the discharge coil with first winding public terminal optimize,
Unreasonable structure, space insulation utilization rate is not high, and field distribution is not uniform enough, and volume is big, at high cost, and nominal discharge capacity is small.
Summary of the invention
Technical problem to be solved by the utility model is to provide one kind can reduce line backpack body product, core dimensions, raising
Space utilization rate and insulation usage factor, and keep product high and low pressure electric field between electrodes more uniform, and thus make material economy,
The shunt capacitor discharge coil that cost reduces, technical and economic performance improves.
In order to solve the above technical problems, the technical solution adopted by the utility model is:
A kind of shunt capacitor differential pressure type discharge coil, characterized in that including rotating around 2 strings on two iron cores
Join the first winding and primary connection terminal of connection, the primary connection terminal include left connecting terminal A, public terminal A1 with
And right connecting terminal X, the first winding of the discharge coil use the cylindrical coil structure concentric with core section circumscribed circle
Coiling, the structure that first and end is lifted one's head respectively on the inside and outside circumference of the cylindrical layer winding.
The left connecting terminal A and the right connecting terminal X connecting lead wire go out on the cylindrical layer winding excircle
Head, the public terminal A1 connecting lead wire are lifted one's head on the cylindrical layer winding inner periphery.
Using insulating materials by two first windings, two groups of secondary windings, two iron cores, primary connection terminal and
Secondary terminal box encapsulating is an integral structure, and the primary connection terminal is located at integral structure top, is insulated respectively by three
Column encapsulation.
2 groups of secondary windings are independently not attached to, and are respectively led into the secondary terminal box and are formed secondary wiring terminals.
The full skirt of several size intervals is evenly distributed on the insulated column.
The insulating materials includes epoxy resin.
The utility model it is achieved the utility model has the advantages that
1, guaranteeing to reduce volume when even improving electrical insulation properties, it is compact-sized, beautiful and generous.
2, coil winding is reduced to one section by two sections, and two first windings of whole product can be lacked around two sections, greatly reduces
The labor intensity of worker shortens Production Time, reduces cost of labor, and primary coil Production Time can save 40%.
3, due to the reduction of core length, weight is reduced, has saved material cost.
4, reduce line packet greatly since first winding has become one section from two sections, to reduce leakage reactance.And product
Leakage reactance is an important factor for so that product is generated measurement error, so the reduction of leakage reactance, it will greatly improves the survey of product
Measure accurate class precision.
5, due to the reduction of iron core weight, the iron loss of product will be reduced, and product iron loss is that product is made to generate measurement error
Another key factor, so the reduction of the stagnant loss of iron, it will greatly improve product the accurate class precision of measurement.
If 6, guaranteeing that precision is constant, the reduction of leakage reactance and iron loss will bring the further of copper wire dosage and iron core weight
Reduce, to carry out the reduction of cost.
7, due to the reduction of small product size, the epoxy resin and other insulating materials for insulation can be reduced.
8, in the case where holding is using original discharge coil volume with first winding public terminal and with material, this
The new construction product of invention can greatly improve the accurate class precision of measurement of the nominal discharge capacity and secondary winding of discharge coil.
According to measuring and calculating, discharge coil of the present invention, under 0.5 class precision, nominal discharge capacity can increase under identical material cost
35%；Under same nominal discharge capacity, cost-saved 30%.
Detailed description of the invention
For Fig. 1 to be common single-phase without first winding public terminal discharge coil structural schematic diagram, left (A) is main view, right
It (B) is side view；
Fig. 2 is the discharge coil structural schematic diagram for having first winding public terminal in the prior art, and left (A) is main view
Figure, right (B) are side view；
Fig. 3 is first winding winding structure comparison diagram in the prior art and the utility model, and left (A) is prior art knot
Structure, right (B) are the utility model structure；
Fig. 4 is the discharge coil structural schematic diagram that first winding public terminal is had in the utility model, and left (A) is main view
Figure, right (B) are side view.
Specific embodiment
The utility model is further described with reference to the accompanying drawing.Following embodiment is only used for clearly illustrating this
The technical solution of utility model, and cannot be used as a limitation the limitation protection scope of the utility model.
As shown in figure 4, a kind of shunt capacitor differential pressure type discharge coil, using insulating materials by two rotating around two
The first winding of series connection on a iron core, two groups of independent secondary windings, two iron cores, primary connection terminal and secondary
Terminal box encapsulating is an integral structure, and primary connection terminal is located at integral structure top, is encapsulated respectively by three insulated columns, absolutely
Be evenly distributed with the full skirt of several size intervals on edge column, primary connection terminal include left connecting terminal A, public terminal A1 and
Right connecting terminal X, wherein first winding uses the cylindrical coil structure coiling concentric with core section circumscribed circle, first and end
The structure lifted one's head respectively on the inside and outside circumference of the cylindrical layer winding, left connecting terminal A and right connecting terminal X connection are drawn
Line is lifted one's head on the excircle of cylindrical layer winding, and public terminal A1 connecting lead wire is lifted one's head on the inner periphery of cylindrical layer winding, and 2 groups
Secondary winding is independently not attached to, and is respectively led into secondary terminal box and is formed secondary wiring terminals, insulating materials can use asphalt mixtures modified by epoxy resin
Rouge or other materials.
The winding structure that first winding uses one section of coiling and lifts one's head respectively inside, on excircle in the utility model, such as
Shown in Fig. 3, the space bit in former winding method to guarantee insulation distance needed for resistance to pressure request between two sections can be saved out in this way
It sets, if calculated by 10kV product, primary coil height at least wants 20mm, and has the discharge coil of first winding public terminal
There are two primary coils for tool, can save out the spatial position of 40mm high, and voltage class is higher, and saving space will be bigger, together
When reduced due to the height of primary coil, in the case where guaranteeing insulation distance and electrical strength, core length is also shortened
Corresponding size, and then the length of entire product has also obtained greatly reducing.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvement and deformations can also be made, these change
It also should be regarded as the protection scope of the utility model into deformation.
Claims (6)
1. a kind of shunt capacitor differential pressure type discharge coil, characterized in that including rotating around 2 series connection on two iron cores
The first winding and primary connection terminal of connection, the primary connection terminal include left connecting terminal (A), public terminal (A1)
And right connecting terminal (X), the first winding of the discharge coil use the cylindrical layer winding concentric with core section circumscribed circle
Structure coiling, the structure that first and end is lifted one's head respectively on the inside and outside circumference of the cylindrical layer winding.
2. a kind of shunt capacitor differential pressure type discharge coil according to claim 1, characterized in that the left terminals
Sub (A) and right connecting terminal (X) connecting lead wire are lifted one's head on the excircle of the cylindrical layer winding, the public terminal
(A1) connecting lead wire is lifted one's head on the inner periphery of the cylindrical layer winding.
3. a kind of shunt capacitor differential pressure type discharge coil according to claim 2, characterized in that use insulating materials
The encapsulating of two first windings, two groups of secondary windings, two iron cores, primary connection terminal and secondary terminal box is integrated
Formula structure, the primary connection terminal are located at integral structure top, are encapsulated respectively by three insulated columns.
4. a kind of shunt capacitor differential pressure type discharge coil according to claim 3, characterized in that 2 groups of secondary windings
It is independently not attached to, is respectively led into the secondary terminal box and forms secondary wiring terminals.
5. a kind of shunt capacitor differential pressure type discharge coil according to claim 3, characterized in that on the insulated column
It is evenly distributed with the full skirt of several size intervals.
6. a kind of shunt capacitor differential pressure type discharge coil according to claim 3, characterized in that the insulating materials
Including epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820873854.4U CN208622519U (en) | 2018-06-07 | 2018-06-07 | A kind of shunt capacitor differential pressure type discharge coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820873854.4U CN208622519U (en) | 2018-06-07 | 2018-06-07 | A kind of shunt capacitor differential pressure type discharge coil |
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| Publication Number | Publication Date |
|---|---|
| CN208622519U true CN208622519U (en) | 2019-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820873854.4U Active CN208622519U (en) | 2018-06-07 | 2018-06-07 | A kind of shunt capacitor differential pressure type discharge coil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114144853A (en) * | 2019-08-28 | 2022-03-04 | 科米特技术美国股份有限公司 | High power low frequency coil |
-
2018
- 2018-06-07 CN CN201820873854.4U patent/CN208622519U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114144853A (en) * | 2019-08-28 | 2022-03-04 | 科米特技术美国股份有限公司 | High power low frequency coil |
| US12002611B2 (en) | 2019-08-28 | 2024-06-04 | COMET Technologies USA, Inc. | High power low frequency coils |
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230919 Address after: Room 313, 3rd Floor, No. 2 Xianxin Middle Road, Nanjing Economic and Technological Development Zone, Jiangsu Province, 210046 Patentee after: Nanjing Electric (Group) Intelligent Power Equipment Co.,Ltd. Address before: No. 99-2 Xianxin East Road, Nanjing Economic and Technological Development Zone, Jiangsu Province, 210046 Patentee before: NANJING ELECTRIC HV TRANSFORMER Co.,Ltd. |
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| TR01 | Transfer of patent right |