CN104299760A - Coil lead structure for increasing wiring electrical distance - Google Patents
Coil lead structure for increasing wiring electrical distance Download PDFInfo
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- CN104299760A CN104299760A CN201410523440.5A CN201410523440A CN104299760A CN 104299760 A CN104299760 A CN 104299760A CN 201410523440 A CN201410523440 A CN 201410523440A CN 104299760 A CN104299760 A CN 104299760A
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- phase coil
- wiring
- pressure side
- connection wire
- coil
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Abstract
The invention discloses a coil lead structure for increasing a wiring electrical distance. The coil lead structure for increasing the wiring electrical distance comprises an A phase coil, a B phase coil and a C phase coil, wherein an X connection wire is led out of the bottom of a high voltage side of the A phase coil, a Y connection wire and a Y' connection wire are respectively led out of the bottom of a high voltage side of the B phase coil, a Z connection wire is led out of the bottom of a high voltage side of the C phase coil, the X connection wire is connected with the Y connection wire, and the Y' connection wire is connected with the Z connection wire. The coil lead structure for increasing the wiring electrical distance uses the design that lead heads of the B phase coil are respectively used as the Y connection wire and the Y' connection wire, and thereby achieves the purpose that a connection between the X connection wire and the Z connection wire are not achieved through the B phase coil when Yyn0 is wired, and further can achieve the purpose that the size of an oil tank does not need to be increased on the premise of guaranteeing an insulation distance. Additionally, the branch connection wires of the B phase coil and the C phase coil are led from the high voltage sides, the branch connection wire of the A phase coil is led from a low voltage side of the A phase coil, and therefore the enough insulation distance among the branch connection wires is guaranteed on the premise that the number of lead heads of the branch connection wires is large.
Description
Technical field
The present invention relates to a kind of coil lead structure increasing cabling electrical distance, belong 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.
Summary of the invention
Object: in order to overcome the deficiencies in the prior art, the invention 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 used in the present invention 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 provided by the invention, 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 invention;
Fig. 2 is high-pressure side of the present invention front view;
Fig. 3 is low-pressure side front view of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention 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.
Manufacture method of the present invention 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 the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
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 |
|---|---|---|---|
| CN201410523440.5A CN104299760A (en) | 2014-09-30 | 2014-09-30 | Coil lead structure for increasing wiring electrical distance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410523440.5A CN104299760A (en) | 2014-09-30 | 2014-09-30 | Coil lead structure for increasing wiring electrical distance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104299760A true CN104299760A (en) | 2015-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410523440.5A Pending CN104299760A (en) | 2014-09-30 | 2014-09-30 | Coil lead structure for increasing wiring electrical distance |
Country Status (1)
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| CN (1) | CN104299760A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201199479Y (en) * | 2008-08-28 | 2009-02-25 | 广东海鸿变压器有限公司 | Down-lead structure for solid wound core dry transformer |
| CN101615493A (en) * | 2009-05-22 | 2009-12-30 | 山东达驰电气有限公司 | A kind of arrangement of transformer high-voltage tap lead |
| CN102290212A (en) * | 2011-05-04 | 2011-12-21 | 广东海鸿变压器有限公司 | High-voltage right incoming line structure of three-dimensional wound core dry-type transformer |
| CN102290211A (en) * | 2011-05-04 | 2011-12-21 | 广东海鸿变压器有限公司 | High-voltage left incoming line structure of three-dimensional wound core dry-type transformer |
| US20130043966A1 (en) * | 2011-08-15 | 2013-02-21 | Abb Technology Ag | Transformer tap projection and cover |
| CN204102680U (en) * | 2014-09-30 | 2015-01-14 | 江苏南瑞帕威尔电气有限公司 | A kind of coil lead structure increasing cabling electrical distance |
-
2014
- 2014-09-30 CN CN201410523440.5A patent/CN104299760A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201199479Y (en) * | 2008-08-28 | 2009-02-25 | 广东海鸿变压器有限公司 | Down-lead structure for solid wound core dry transformer |
| CN101615493A (en) * | 2009-05-22 | 2009-12-30 | 山东达驰电气有限公司 | A kind of arrangement of transformer high-voltage tap lead |
| CN102290212A (en) * | 2011-05-04 | 2011-12-21 | 广东海鸿变压器有限公司 | High-voltage right incoming line structure of three-dimensional wound core dry-type transformer |
| CN102290211A (en) * | 2011-05-04 | 2011-12-21 | 广东海鸿变压器有限公司 | High-voltage left incoming line structure of three-dimensional wound core dry-type transformer |
| US20130043966A1 (en) * | 2011-08-15 | 2013-02-21 | Abb Technology Ag | Transformer tap projection and cover |
| CN204102680U (en) * | 2014-09-30 | 2015-01-14 | 江苏南瑞帕威尔电气有限公司 | A kind of coil lead structure increasing cabling electrical distance |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150121 |