CN202650805U - Low-voltage coil of three-voltage dry-type transformer - Google Patents
Low-voltage coil of three-voltage dry-type transformer Download PDFInfo
- Publication number
- CN202650805U CN202650805U CN 201220223892 CN201220223892U CN202650805U CN 202650805 U CN202650805 U CN 202650805U CN 201220223892 CN201220223892 CN 201220223892 CN 201220223892 U CN201220223892 U CN 201220223892U CN 202650805 U CN202650805 U CN 202650805U
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Abstract
The utility model provides a low-voltage coil of a three-voltage dry-type transformer. The low-voltage coil comprises an inner wrapping insulator and an outer wrapping insulator which is positioned outside the inner wrapping insulator, wherein a set number of turns of coils which are formed by winding wires are positioned between the inner wrapping insulator and the outer wrapping insulator; an interlayer insulator is arranged between every two adjacent turns of coils; an end insulator is respectively arranged at the left end and the right end of each coil; and an outgoing line of each coil is welded on an outgoing line copper bar. The low-voltage coils are characterized in that a low-voltage incoming line copper bar A, a low-voltage incoming line copper bar B and a high-voltage incoming line copper bar which are respectively connected with three different voltage coils are arranged on the coil in sequence from inside to outside; the low-voltage coils are arranged on the inner side; high-voltage coils are arranged on the outer side; and the low-voltage coils and the high-voltage coils are provided for public use. The low-voltage coil of the coil three-voltage dry-type transformer overcomes the defects of the prior art, can provide three different voltage outputs simultaneously to meet requirements of different voltage equipment; and as the low-voltage coils and the high-voltage coils are provided for public use, a small quantity of wire materials are required, and the cost is low.
Description
Technical field
The utility model relates to a kind of three voltage dry type transformer low-voltage coils, can be used in the movable transformer pack, belongs to the transformer technology field.
Background technology
The dry-type transformer that uses in the at present electric power system mostly is the univoltage dry-type transformer, illustrated in figures 1 and 2 is respectively the low-voltage coil structure schematic diagram of this kind univoltage dry type pressure transformer and the number of turn schematic diagram of arranging, it comprises interior bag insulation 1 and is positioned at bag insulation 1 outsourcing insulation 2 outward, the coil of the setting number of turn that is turned to by wire 3 insulate between 2 in interior bag insulation 1 and outsourcing, be provided with layer insulation 7 between the adjacent two circle coils, the two ends, the left and right sides of coil are provided with end insulation 4, and the line of wire 3 is welded on the line copper bar 6.Also be provided with gas channel supporting bar 5 round the coil axle center with loop configuration in the coil, the air flue that is formed for dispelling the heat.
Above-mentioned low-voltage coil has the following disadvantages: in the situation that input voltage is certain, a transformer can only be exported a kind of rated voltage, it can only be used for a kind of distribution system of voltage, when operational outfit voltage changes in this distribution system, use the transformer of this low-voltage coil just can't re-use.
The utility model content
It is few and the low-voltage coil of dry type transformer of three kinds of different Voltage-outputs can be provided simultaneously that the purpose of this utility model provides a kind of needed raw material.
In order to achieve the above object, the technical solution of the utility model has provided a kind of three voltage dry type transformer low-voltage coils, comprise interior bag insulation and be positioned at the outer outsourcing insulation of bag insulation, the coil of the setting number of turn that is turned to by wire is between interior bag insulation is insulated with outsourcing, be provided with layer insulation between the adjacent two circle coils, the two ends, the left and right sides of coil are provided with the end insulation, the coil outlet is welded on the outlet copper bar, it is characterized in that: be provided with successively from inside to outside the low pressure inlet wire copper bar A that connects respectively three kinds of different potential windings in the coil, low pressure inlet wire copper bar B and high pressure inlet wire copper bar; The low-pressure section coil is located at the inboard, and the high-pressure section coil is located at the outside, and low-pressure section coil and high-pressure section coil are public.
Preferably, be equipped with gas channel supporting bar in described low pressure inlet wire copper bar A, low pressure inlet wire copper bar B place and the described coil.
Preferably, the connection jaws of described low pressure inlet wire copper bar A and described low pressure inlet wire copper bar B is located at the coil top, and the connection jaws of described high pressure inlet wire copper bar is located at the coil below.
Preferably, the rated voltage of described low pressure inlet wire copper bar A, low pressure inlet wire copper bar B and high pressure inlet wire copper bar institute connecting coil is respectively 400V, 690V and 1.2kV.
The outlet bronze medal of outlet bronze medal and former univoltage low-voltage coil of dry type transformer is identical among the present invention, and the low-voltage coil of former univoltage dry-type transformer only has an inlet wire bronze medal, and the present invention's three voltage dry type transformer low-voltage coils are provided with three inlet wire bronze medals.
A kind of three voltage dry type transformer low-voltage coils that the utility model provides can provide three kinds of different Voltage-outputs by low pressure inlet wire copper bar A, low pressure inlet wire copper bar B with high pressure inlet wire copper bar, can use separately also and can use simultaneously.The low-pressure section coil is located at the inboard, and the high-pressure section coil is located at the outside, and low-pressure section coil and high-pressure section coil are public, and required conductor material is few, at the bottom of the cost.
The device that the utility model provides has overcome the deficiencies in the prior art, and three kinds of different Voltage-outputs can be provided simultaneously, satisfies the demand of different voltage apparatus, and low-pressure section coil and high-pressure section coil are public, and required conductor material is few, at the bottom of the cost.
Description of drawings
Fig. 1 is the low-voltage coil structure schematic diagram of former univoltage dry-type transformer;
Fig. 2 is the low-voltage coil number of turn of the former univoltage dry-type transformer schematic diagram of arranging;
A kind of three voltage dry type transformer low-voltage coil structure schematic diagrames that Fig. 3 provides for the utility model;
A kind of three voltage dry type transformer low-voltage coil numbers of turn that Fig. 4 provides for the utility model schematic diagram of arranging.
Embodiment
For the utility model is become apparent, hereby with a preferred embodiment, and cooperate accompanying drawing to be described in detail below.
As shown in Figure 3, the utility model provides a kind of structural representation of three voltage dry type transformer low-voltage coils, and described three voltage dry type transformer low-voltage coils comprise interior bag insulation 1, outsourcing insulation 2, wire 3, end insulation 4, gas channel supporting bar 5, outlet copper bar 8, low pressure inlet wire copper bar A9, low pressure inlet wire copper bar B 10 and high pressure inlet wire copper bar 11.
Outsourcing insulation 2 is positioned at outside the bag insulation 1, the coil of the setting number of turn that is turned to by wire 3 insulate between 2 in interior bag insulation 1 and outsourcing, be provided with layer insulation 7 between the adjacent two circle coils, the two ends, the left and right sides of coil are provided with end insulation 4, and the coil outlet is welded on the outlet copper bar 8.
Interior bag insulation 1, outsourcing insulation 2, end insulation 4 and layer insulation 7 are the soft composite insulating foil of polyester film and polyester fibre non woven fabric.
Be provided with successively from inside to outside low pressure inlet wire copper bar A9, low pressure inlet wire copper bar B 10 and high pressure inlet wire copper bar 11 in the coil, the connection jaws of low pressure inlet wire copper bar A9 and low pressure inlet wire copper bar B 10 is located at the coil top, the connection jaws of high pressure inlet wire copper bar 11 is located at the coil below, and copper bar mainly works to support bonding terminal and conduction.Low pressure inlet wire copper bar A9, low pressure inlet wire copper bar B10 with connect respectively voltage three kinds of coils from low to high on high pressure inlet wire copper bar is connected, the rated voltage of three kinds of coils is respectively 400V, 690V and 1.2kV; The low-pressure section coil is located at the inboard, and the high-pressure section coil is located at the outside, and low-pressure section coil and high-pressure section coil are public, and required conductor material is few, at the bottom of the cost.
In conjunction with Fig. 4, be equipped with gas channel supporting bar 5 in low pressure inlet wire copper bar A9, low pressure inlet wire copper bar B10 place and the coil.Gas channel supporting bar 5 cross sections are I-shaped, are that the glass fiber of H level processes by the class of insulation, play the effect of support coils heat radiation.
The main fabrication schedule of the utility model is as follows:
(1) at first determines the circle electromotive force, then determine the number of turn, determine the specification of used wire 3 and the relative dimensions of coil according to the specification requirement of transformer again.
(2) during coiling, first interior bag insulation 1 is rolled on the coil die, wire 9 leading-out terminals are welded on the outlet copper bar 8, then with coiling between the insulation 7 of wire 9 imbeds, coil is placed gas channel supporting bar 5 along the coil axle center with the loop configuration proper alignment after certain number of turn.
(3) the every coiling of coil then is welded in its end of incoming cables on inlet wire copper bar low pressure inlet wire copper bar A9, low pressure inlet wire copper bar B10 and the high pressure inlet wire copper bar 11 after the corresponding setting number of turn, and gas channel supporting bar 5 is also placed at low pressure inlet wire copper bar A9 and low pressure inlet wire copper bar B10 place.
(4) place end insulation 4 at two ends, the coil left and right sides, wrap up at last abdomen outsourcing insulation 8.
Claims (4)
1. voltage dry type transformer low-voltage coil, comprise interior bag insulation (1) and be positioned at the outer outsourcing insulation (2) of bag insulation (1), the coil of the setting number of turn that is turned to by wire (3) is positioned at bag insulation (1) and insulate between (2) with outsourcing, be provided with layer insulation (7) between the adjacent two circle coils, the two ends, the left and right sides of coil are provided with end insulation (4), the coil outlet is welded on the outlet copper bar (8), it is characterized in that: be provided with successively from inside to outside the low pressure inlet wire copper bar A (9) that connects respectively three kinds of different potential windings in the coil, low pressure inlet wire copper bar B (10) and high pressure inlet wire copper bar (11); The low-pressure section coil is located at the inboard, and the high-pressure section coil is located at the outside, and low-pressure section coil and high-pressure section coil are public.
2. a kind of three voltage dry type transformer low-voltage coils as claimed in claim 1 is characterized in that: described low pressure inlet wire copper bar A (9), low pressure inlet wire copper bar B (10) locate with described coil in be equipped with gas channel supporting bar (5).
3. a kind of three voltage dry type transformer low-voltage coils as claimed in claim 1, it is characterized in that: the connection jaws of described low pressure inlet wire copper bar A (9) and described low pressure inlet wire copper bar B (10) is located at the coil top, and the connection jaws of described high pressure inlet wire copper bar (11) is located at the coil below.
4. a kind of three voltage dry type transformer low-voltage coils as claimed in claim 1, it is characterized in that: the rated voltage of described low pressure inlet wire copper bar A (9), low pressure inlet wire copper bar B (10) and high pressure inlet wire copper bar (11) institute connecting coil is respectively 400V, 690V and 1.2kV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220223892 CN202650805U (en) | 2012-05-17 | 2012-05-17 | Low-voltage coil of three-voltage dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220223892 CN202650805U (en) | 2012-05-17 | 2012-05-17 | Low-voltage coil of three-voltage dry-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202650805U true CN202650805U (en) | 2013-01-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220223892 Expired - Lifetime CN202650805U (en) | 2012-05-17 | 2012-05-17 | Low-voltage coil of three-voltage dry-type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202650805U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102637514A (en) * | 2012-05-17 | 2012-08-15 | 正泰电气股份有限公司 | Low-voltage coil of three-voltage dry-type transformer |
| CN104979086A (en) * | 2015-07-01 | 2015-10-14 | 广东广特电气有限公司 | Low-voltage mixed winding structure for regulated capacity transformer |
| CN106098331A (en) * | 2016-05-31 | 2016-11-09 | 江苏宏源电气有限责任公司 | A kind of line is around two-sided end seal low-voltage coil and preparation method |
-
2012
- 2012-05-17 CN CN 201220223892 patent/CN202650805U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102637514A (en) * | 2012-05-17 | 2012-08-15 | 正泰电气股份有限公司 | Low-voltage coil of three-voltage dry-type transformer |
| CN104979086A (en) * | 2015-07-01 | 2015-10-14 | 广东广特电气有限公司 | Low-voltage mixed winding structure for regulated capacity transformer |
| CN106098331A (en) * | 2016-05-31 | 2016-11-09 | 江苏宏源电气有限责任公司 | A kind of line is around two-sided end seal low-voltage coil and preparation method |
| CN106098331B (en) * | 2016-05-31 | 2018-06-26 | 江苏宏源电气有限责任公司 | A kind of line is around two-sided end seal low-voltage coil and preparation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |