CN204102680U - A kind of coil lead structure increasing cabling electrical distance - Google Patents
A kind of coil lead structure increasing cabling electrical distance Download PDFInfo
- Publication number
- CN204102680U CN204102680U CN201420576191.1U CN201420576191U CN204102680U CN 204102680 U CN204102680 U CN 204102680U CN 201420576191 U CN201420576191 U CN 201420576191U CN 204102680 U CN204102680 U CN 204102680U
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- wiring
- phase coil
- pressure side
- cabling
- coil
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Abstract
The utility model discloses a kind of coil lead structure increasing cabling electrical distance, comprise A phase coil, B phase coil, C phase coil, bottom described A phase coil high-pressure side, draw X wiring; Y wiring, Y ' wiring is drawn respectively bottom described B phase coil high-pressure side; Z wiring is drawn bottom described C phase coil high-pressure side; X wiring is connected with Y wiring, and Y ' wiring is connected with Z wiring.A kind of coil lead structure increasing cabling electrical distance that the utility model provides, be Y wiring by B phase coil leading-out end, the design of Y ' wiring, make when realizing Yyn0 line, X wiring is connected with Z wiring need not pass through B phase coil, when can be implemented in guarantee insulation distance, fuel tank size need not be increased.B phase coil in addition, C phase coil divides wiring from high-pressure side cabling, and A phase coil divides wiring from low-pressure side cabling, thus when a point wiring is lifted one's head a lot, also can ensure there are enough insulation distances between point wiring.
Description
Technical field
The utility model relates to a kind of coil lead structure increasing cabling electrical distance, belongs to transformer coil wiring technique field.
Background technology
Present distribution transformer, power transformer product, require safe and reliable to operation, and cost is low, so under the prerequisite meeting enough insulation distances, can ensure product low cost, is one of key content of design of transformer.Realize Yyn0, wiring is routinely: connect X, Y, Z, but certain insulation distance need be ensured with coil for high voltage transformer (as 35KV, 110KV grade) XYZ line, XZ line is little through insulation distance during B phase coil, and as ensured, insulation distance then needs to add large tank, and cost can increase; Secondly, tap be ± 4 × 2.5 or ± 8 × 2.5 and above time point wiring from side outlet time, namely when high-voltage tap line is from side cabling, because point wiring is many, electric pressure is high, and insulation distance will become very nervous, even not, simple adds bag insulation, cannot ensure the reliability of transformer.
Utility model content
Object: in order to overcome the deficiencies in the prior art, the utility model provides a kind of coil lead structure increasing cabling electrical distance.
Technical scheme: for solving the problems of the technologies described above, the technical solution adopted in the utility model is:
Increase a coil lead structure for cabling electrical distance, comprise A phase coil, B phase coil, C phase coil, bottom described A phase coil high-pressure side, draw X wiring; Y wiring, Y ' wiring is drawn respectively bottom described B phase coil high-pressure side; Z wiring is drawn bottom described C phase coil high-pressure side; X wiring is connected with Y wiring, and Y ' wiring is connected with Z wiring.
Also comprise switch, point wiring, described A phase coil divides wiring from low-pressure side tap; Described B phase coil divides wiring from high-pressure side tap; Described C phase coil divides wiring from high-pressure side tap; Described switch-linear hybrid is outside A phase coil; Described A phase coil divides wiring to be connected from low-pressure side cabling with switch; Described B phase coil divides wiring to be connected from high-pressure side cabling with switch; Described C phase coil divides wiring to be connected from high-pressure side cabling with switch.
Preferably, described point of wiring lift one's head be set to ± 4 × 2.5 or ± 8 × 2.5.
Beneficial effect: a kind of coil lead structure increasing cabling electrical distance that the utility model provides, be Y wiring by B phase coil leading-out end, the design of Y ' wiring, make when realizing Yyn0 line, X wiring is connected with Z wiring need not pass through B phase coil, when can be implemented in guarantee insulation distance, fuel tank size need not be increased.B phase coil in addition, C phase coil divides wiring from high-pressure side cabling, and A phase coil divides wiring from low-pressure side cabling, thus when a point wiring is lifted one's head a lot, also can ensure there are enough insulation distances between point wiring.
Accompanying drawing explanation
Fig. 1 is structure vertical view of the present utility model;
Fig. 2 is the utility model high-pressure side front view;
Fig. 3 is the utility model low-pressure side front view.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 1, a kind of coil lead structure increasing cabling electrical distance, comprises A phase coil 1, B phase coil 2, C phase coil 3, draws X wiring 11 bottom described A phase coil 1 high-pressure side; Y wiring 21, Y ' wiring 22 is drawn respectively bottom described B phase coil 2 high-pressure side; Z wiring 31 is drawn bottom described C phase coil 3 high-pressure side; X wiring 11 is connected with Y wiring 21, and Y ' wiring 22 is connected with Z wiring 31.
Also comprise point wiring 4, switch 5, as shown in Figure 3, the 1 point of wiring 4 of described A phase coil is from low-pressure side tap; As shown in Figure 2, the 2 points of wiring 4 of described B phase coil are from high-pressure side tap; The 3 points of wiring 4 of described C phase coil are from high-pressure side tap; Described switch 5 is arranged on outside A phase coil 1; The 1 point of wiring 4 of described A phase coil is connected from low-pressure side cabling with switch 5; The 2 points of wiring 4 of described B phase coil are connected from high-pressure side cabling with switch 5; The 3 points of wiring 4 of described C phase coil are connected from high-pressure side cabling with switch 5.
Preferably, described point of wiring 4 lift one's head be set to ± 4 × 2.5 or ± 8 × 2.5.
The utility model manufacture method is as follows:
1, coil winding method routinely, coiling A phase coil, when to tap position, around to low-pressure side tap, finally need finish up around to high-pressure side.
2, B phase coil and C phase coil divide wiring tap to be conventional tap, all in high-pressure side tap, when finishing up unlike B phase coil, take out two and lift one's head, if coil be right around to, then first take out Y ' wiring, then take out Y wiring around 120 degree and finish up; If coil be left around to, then first take out Y wiring, then take out Y ' wiring around 120 degree and finish up.
When 3, going between, B phase coil and C phase coil divide wiring from high-pressure side cabling, and A phase coil divides wiring from low-pressure side cabling, need ensure between going between and the creepage distance of the iron that goes between when going between.
4, connect X wiring and Y wiring, Y ' wiring and Z wiring, complete the making of Yyn0 wiring, can with tape by XY wiring during line, and Y ' Z wiring is fixed on timbering.
The above is only preferred implementation of the present utility model; be noted that for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (3)
1. increase a coil lead structure for cabling electrical distance, comprise A phase coil, B phase coil, C phase coil, it is characterized in that: bottom described A phase coil high-pressure side, draw X wiring; Y wiring, Y ' wiring is drawn respectively bottom described B phase coil high-pressure side; Z wiring is drawn bottom described C phase coil high-pressure side; X wiring is connected with Y wiring, and Y ' wiring is connected with Z wiring.
2. a kind of coil lead structure increasing cabling electrical distance according to claim 1, is characterized in that: also comprise switch, point wiring, described A phase coil divides wiring from low-pressure side tap; Described B phase coil divides wiring from high-pressure side tap; Described C phase coil divides wiring from high-pressure side tap; Described switch-linear hybrid is outside A phase coil; Described A phase coil divides wiring to be connected from low-pressure side cabling with switch; Described B phase coil divides wiring to be connected from high-pressure side cabling with switch; Described C phase coil divides wiring to be connected from high-pressure side cabling with switch.
3. a kind of coil lead structure increasing cabling electrical distance according to claim 2, is characterized in that: described point of wiring lift one's head be set to ± 4 × 2.5 or ± 8 × 2.5 and more than.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420576191.1U CN204102680U (en) | 2014-09-30 | 2014-09-30 | A kind of coil lead structure increasing cabling electrical distance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420576191.1U CN204102680U (en) | 2014-09-30 | 2014-09-30 | A kind of coil lead structure increasing cabling electrical distance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204102680U true CN204102680U (en) | 2015-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420576191.1U Active CN204102680U (en) | 2014-09-30 | 2014-09-30 | A kind of coil lead structure increasing cabling electrical distance |
Country Status (1)
| Country | Link |
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| CN (1) | CN204102680U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104299760A (en) * | 2014-09-30 | 2015-01-21 | 江苏南瑞帕威尔电气有限公司 | Coil lead structure for increasing wiring electrical distance |
-
2014
- 2014-09-30 CN CN201420576191.1U patent/CN204102680U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104299760A (en) * | 2014-09-30 | 2015-01-21 | 江苏南瑞帕威尔电气有限公司 | Coil lead structure for increasing wiring electrical distance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |