CN202650795U - Split type rectifier transformer for DC-based deicing - Google Patents
Split type rectifier transformer for DC-based deicing Download PDFInfo
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- CN202650795U CN202650795U CN 201220077707 CN201220077707U CN202650795U CN 202650795 U CN202650795 U CN 202650795U CN 201220077707 CN201220077707 CN 201220077707 CN 201220077707 U CN201220077707 U CN 201220077707U CN 202650795 U CN202650795 U CN 202650795U
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Abstract
The utility model provides a split type rectifier transformer for DC-based deicing, which comprises an iron core T, a valve-side winding L1, a line-side winding H and a valve-side winding L2. The valve-side winding L1, the line-side winding H and the valve-side winding L2 are orderly wound onto the iron core T. The A and the z of the line-side winding H, the B and the x of the line-side winding H, and the C and the y of the line-side winding H, are connected with each other respectively, wherein A, B and C are outlet terminals of the line-side winding H; and x, y and z are tail ends of the line-side winding H. The a1 and the z1 of the valve-side winding L1, the b1 and the x1 of the valve-side winding L1, and the c1 and the y1 of the valve-side winding L1, are connected with each other respectively, wherein a1, b1 and c1 are outlet terminals of the valve-side winding L1; and x1, y1 and z1 are tail ends of the valve-side winding L1. The x2, the y2 and the z2 of the valve-side winding L2 are connected with each other, wherein a2, b2 and c2 are outlet terminals of the valve-side winding L2; and x2, y2 and z2 are tail ends of the valve-side winding L2. The phase of each phase voltage of the valve-side winding L1 is equal to the phase of each phase voltage of the line-side winding H. The phase angle of each phase voltage of the valve-side winding L2 advances the phase angle of each phase voltage of the valve-side winding L1 at a lead angle of 30 degrees. Due to the adoption of the split type rectifier transformer for DC-based deicing, ice coating on grid lines can be quickly, reliably and safely deiced, so that the safe and reliable operation of a power grid is ensured.
Description
Technical field
The utility model is a kind of rectifier transformer, particularly a kind of DC ice melting splitting type commutator transformer.
Background technology
Transmission line in the winter time icing is one of major natural disasters of electric power system.The power failure that causes because of icing, even the accident such as electrical network disintegration, consequence is usually very serious, and the repair difficulty is large, spended time is long.The large-scale freezing rain and snow disaster of in January, 2008 south China causes the large tracts of land icing of transmission line and shaft tower, and some areas grid power transmission equipment is impaired, and relevant power plant generating set is therefore tripping grinder also.500kV line tripping 129 times, tower 34 bases had just occured in Central China and East China before 26 days January in 2008; 220kV line tripping 159 times, tower 11 bases.Bring massive losses to national economy.In order to address the above problem, unanimously think both at home and abroad, for large-scale powerline ice-covering problem, direct current ice melting method is the most effective.
Summary of the invention
The purpose of this utility model provides a kind of DC ice melting splitting type commutator transformer.This transformer reduces the alternating voltage of net side by the electric energy conversion, increase the alternating current of net side, by the rectifying installation in the DC de-icing device AC power after changing is changed into DC power supply again, with the icing circuit as load, apply DC power supply, provide short circuit current heating icing circuit that icing is melted with low voltage.This transformer can melt the icing on the power network line fast, reliably, safely, guarantees power grid security, reliability service.
The technical solution of the utility model is as follows: a kind of DC ice melting splitting type commutator transformer, this transformer is made of iron core T and the valve side winding L 1, net side winding H and the valve side winding L 2 that are wrapped on the iron core T.Valve side winding L 1 is wrapped on the iron core T.Net side winding H is wrapped on the valve side winding L 1.Valve side winding L 2 is wrapped on the net side winding H.
The three-phase winding terminal of net side winding H is respectively A, x, B, y, C, z, and wherein A is connected respectively with y with x, C with z, B.A, B, C are the head end (being outlet terminal) of net side winding H, and x, y, z are the tail end of net side winding H.
The three-phase winding terminal of valve side winding L 1 is respectively a1, x1, b1, y1, c1, z1, and wherein a1 is connected respectively with y1 with x1, c1 with z1, b1.A1, b1, c1 are the head end (being outlet terminal) of valve side winding L 1, and x1, y1, z1 are the tail end of valve side winding L 1.
The three-phase winding terminal of valve side winding L 2 is respectively a2, x2, b2, y2, c2, z2, and wherein x2, y2 are connected with z2.A2, b2, c2 are the head end (being outlet terminal) of valve side winding L 2, and x2, y2, z2 are the tail end of valve side winding L 2.
Each phase voltage of valve side winding L 1 is identical with each phase voltage phase place of net side winding H, 30 ° of phase angles of each phase voltage of the leading valve side of each phase voltage winding L 1 of valve side winding L 2.
The beneficial effects of the utility model have provided a kind of DC ice melting splitting type commutator transformer.This transformer reduces the alternating voltage of net side by the electric energy conversion, increase the alternating current of net side, by the rectifying installation in the DC de-icing device AC power after changing is changed into DC power supply again, with the icing circuit as load, apply DC power supply, provide short circuit current heating icing circuit that icing is melted with low voltage.This transformer can melt the icing on the power network line fast, reliably, safely, guarantees power grid security, reliability service.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the connection schematic diagram of each winding of the utility model.
Fig. 3 is the vector analysis figure of each winding of the utility model.
Embodiment
Embodiment of the present utility model is as follows:
As shown in Figure 1: a kind of DC ice melting splitting type commutator transformer.This transformer is made of iron core T and the valve side winding L 1, net side winding H and the valve side winding L 2 that are wrapped on the iron core T.Valve side winding L 1 is wrapped on the iron core T.Net side winding H is wrapped on the valve side winding L 1.Valve side winding L 2 is wrapped on the net side winding H.
As shown in Figure 2: the three-phase winding terminal of net side winding H is respectively A, x, B, y, C, z, and wherein A is connected respectively with y with x, C with z, B.A, B, C are the head end (being outlet terminal) of net side winding H, and x, y, z are the tail end of net side winding H.
The three-phase winding terminal of valve side winding L 1 is respectively a1, x1, b1, y1, c1, z1, and wherein a1 is connected respectively with y1 with x1, c1 with z1, b1.A1, b1, c1 are the head end (being outlet terminal) of valve side winding L 1, and x 1, y1, z1 are the tail end of valve side winding L 1.
The three-phase winding terminal of valve side winding L 2 is respectively a2, x2, b2, y2, c2, z2, and wherein x2, y2 are connected with z2.A2, b2, c2 are the head end (being outlet terminal) of valve side winding L 2, and x2, y2, z2 are the tail end of valve side winding L 2.
As shown in Figure 3: each phase voltage of valve side winding L 1 is identical with each phase voltage phase place of net side winding H, 30 ° of phase angles of each phase voltage of the leading valve side of each phase voltage winding L 1 of valve side winding L 2.
The above only is preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (1)
1. DC ice melting splitting type commutator transformer, it is characterized in that: this transformer is made of iron core T and the valve side winding L 1, net side winding H and the valve side winding L 2 that are wrapped on the iron core T, valve side winding L 1 is wrapped on the iron core T, net side winding H is wrapped on the valve side winding L 1, and valve side winding L 2 is wrapped on the net side winding H;
The three-phase winding terminal of net side winding H is respectively A, x, B, y, C, z, and wherein A is connected respectively with y with x, C with z, B, and A, B, C are the head end of net side winding H, and x, y, z are the tail end of net side winding H;
The three-phase winding terminal of valve side winding L 1 is respectively a1, x1, b1, y1, c1, z1, and wherein a1 is connected respectively with y1 with x1, c1 with z1, b1, and a1, b1, c1 are the head end of valve side winding L 1, and x1, y1, z1 are the tail end of valve side winding L 1;
The three-phase winding terminal of valve side winding L 2 is respectively a2, x2, b2, y2, c2, z2, and wherein x2, y2 are connected with z2, and a2, b2, c2 are the head end of valve side winding L 2, and x2, y2, z2 are the tail end of valve side winding L 2;
Each phase voltage of valve side winding L 1 is identical with each phase voltage phase place of net side winding H, 30 ° of phase angles of each phase voltage of the leading valve side of each phase voltage winding L 1 of valve side winding L 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220077707 CN202650795U (en) | 2012-03-05 | 2012-03-05 | Split type rectifier transformer for DC-based deicing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220077707 CN202650795U (en) | 2012-03-05 | 2012-03-05 | Split type rectifier transformer for DC-based deicing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202650795U true CN202650795U (en) | 2013-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220077707 Expired - Fee Related CN202650795U (en) | 2012-03-05 | 2012-03-05 | Split type rectifier transformer for DC-based deicing |
Country Status (1)
| Country | Link |
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| CN (1) | CN202650795U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105118639A (en) * | 2015-09-09 | 2015-12-02 | 申国华 | Star-shaped, reverse open-triangular and triangular tie line combined traction transformer |
| CN104779043B (en) * | 2015-04-14 | 2016-07-13 | 保定天威集团特变电气有限公司 | A kind of 220kV ice-melt rectifier transformer |
-
2012
- 2012-03-05 CN CN 201220077707 patent/CN202650795U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104779043B (en) * | 2015-04-14 | 2016-07-13 | 保定天威集团特变电气有限公司 | A kind of 220kV ice-melt rectifier transformer |
| CN105118639A (en) * | 2015-09-09 | 2015-12-02 | 申国华 | Star-shaped, reverse open-triangular and triangular tie line combined traction transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20200305 |
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| CF01 | Termination of patent right due to non-payment of annual fee |