CN201576551U - Multifrequency multi-transformation ratio exciting transformer - Google Patents
Multifrequency multi-transformation ratio exciting transformer Download PDFInfo
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- CN201576551U CN201576551U CN2009202847835U CN200920284783U CN201576551U CN 201576551 U CN201576551 U CN 201576551U CN 2009202847835 U CN2009202847835 U CN 2009202847835U CN 200920284783 U CN200920284783 U CN 200920284783U CN 201576551 U CN201576551 U CN 201576551U
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Abstract
The utility model relates to a multifrequency multi-transformation ratio exciting transformer comprising a high-voltage side, a medium-voltage side and a low-voltage side, wherein the high-voltage side is provided with two windings; the medium-voltage side is provided with two windings; and the low-voltage side is provided with four windings. The scheme has the high-voltage side, the medium-voltage side and the low-voltage side; the high-voltage side is provided with two windings, the medium-voltage side is provided with two windings, and the low-voltage side is provided with four windings; and by the reasonable match of the windings at high-voltage side, the medium-voltage side and the low-voltage side, different frequency requirements in the test and test requirements of different voltage classes can be met, and the overcurrent in the test can be prevented.
Description
Technical field
The utility model relates to a kind of transformer, particularly a kind of energy satisfy different at the trial frequency requirement, different electric pressures test requirements document, prevent the multifrequency polytropic ratio excitation transformer of overcurrent at the trial.
Background technology
In the electric power system, transformer is a common equipment, but the variable ratio of transformer is fixed, and sometimes needs to change the power transformation ratio of transformer, just must change a transformer, particularly in test process, in order to satisfy the test voltage of test specimen, the voltage of excitation transformer will be with the test voltage of test specimen, and constantly changes, it is convenient that this just needs excitation transformer to change voltage, can satisfy test requirements document again.
The utility model content
The utility model purpose is the test requirements document that provides a kind of energy to satisfy different at the trial frequency requirement, different electric pressures in order to overcome the deficiencies in the prior art, prevents the multifrequency polytropic ratio excitation transformer of overcurrent at the trial.
For achieving the above object, the technical solution adopted in the utility model is: a kind of multifrequency polytropic ratio excitation transformer comprises high-pressure side, medium voltage side, low-pressure side; Described high-pressure side two windings, medium voltage side two windings, low-pressure side four windings.
Preferably, the two winding parallel connections of described high-pressure side, medium voltage side two winding parallel connections, low-pressure side four winding parallel connections.
Preferably, high-pressure side two winding parallel connections, medium voltage side two winding parallel connections, low-pressure side four windings two strings two are also.
Preferably, high-pressure side two winding parallel connections, medium voltage side two winding parallel connections, low-pressure side four windings in series.
Preferably, high-pressure side two winding parallel connections, medium voltage side two windings in series, low-pressure side four winding parallel connections.
Preferably, high-pressure side two winding parallel connections, medium voltage side two windings in series, low-pressure side four windings two strings two are also.
Preferably, high-pressure side two winding parallel connections, medium voltage side two windings in series, low-pressure side four windings in series.
Preferably, high-pressure side two windings in series, medium voltage side two winding parallel connections, low-pressure side four winding parallel connections.
Preferably, high-pressure side two windings in series, medium voltage side two winding parallel connections, low-pressure side four windings two strings two are also.
Preferably, high-pressure side two windings in series, medium voltage side two winding parallel connections, low-pressure side four windings in series.
Because the utilization of technique scheme, the utility model compared with prior art has following advantage:
This programme has high-pressure side, medium voltage side, low-pressure side; Described high-pressure side two windings, medium voltage side two windings, low-pressure side four windings; By the reasonable cooperation of high-pressure side winding, medium voltage side winding, low-pressure side winding, promptly see the test requirements document of satisfying a kind of different at the trial frequency requirement, different electric pressures and can prevent overcurrent at the trial.
Description of drawings
Below in conjunction with accompanying drawing technical solutions of the utility model are described further:
Accompanying drawing 1: be the theory diagram of the utility model multifrequency polytropic ratio excitation transformer;
Wherein: 1, high-pressure side; 2, medium voltage side; 3, low-pressure side.
Embodiment
Described in the utility model a kind of multifrequency polytropic ratio excitation transformer as shown in Figure 1 comprises high-pressure side 1, medium voltage side 2, low-pressure side 3; Described high-pressure side two windings, medium voltage side two windings, low-pressure side four windings.
The two winding parallel connections of described high-pressure side, medium voltage side two winding parallel connections, low-pressure side four winding parallel connections, transformation ratio is: 35/10/0.45 (0.40,0.35).
The mode of connection is as follows:
Two terminal short circuits of high-pressure side: A, B; Two terminal short circuits of X, Y.Draw from A (or B) terminal and to connect reactor (when series resonance adopts the output of high pressure winding), X (or Y) terminal ground connection.
Two terminal short circuits of medium voltage side: Am, Bm; Two terminal short circuits of Xm, Ym.Draw from Am (or Bm) terminal and to connect reactor when pressing winding output (series resonance adopt), Xm (or Ym) terminal is drawn ground connection.
Low-pressure side: a1, b1, four terminal short circuits of a2, b2; X1, y1, four terminal short circuits of x2, y2.Draw and connect power supply from a1 (or b1, a2, b 2) terminal and x1 (or y1, x2, y2) terminal.
The two winding parallel connections of described high-pressure side, medium voltage side two winding parallel connections, low-pressure side four windings two go here and there two also, and transformation ratio is: 35/10/0.90 (0.80,0.70).
The mode of connection is as follows:
Two terminal short circuits of high-pressure side: A, B; Two terminal short circuits of X, Y.Draw from A (or B) terminal and to connect reactor (when series resonance adopts the output of high pressure winding), X (or Y) terminal ground connection.
Two terminal short circuits of medium voltage side: Am, Bm; Two terminal short circuits of Xm, Ym.Draw from Am (or Bm) terminal and to connect reactor when pressing winding output (series resonance adopt), Xm (or Ym) terminal is drawn ground connection.
Two terminal short circuits of low-pressure side: a, b1, two terminal short circuits of x1, y1; Two terminal short circuits of a2, b2, two terminal short circuits of x2, y2.X1 (or y1) terminal again with a2 (or b2) short circuit.Draw from a1 (or b1) terminal and x2 (or y2) and to connect power supply.
The two winding parallel connections of described high-pressure side, medium voltage side two winding parallel connections, low-pressure side four windings in series, transformation ratio is: 35/10/1.80 (1.60,1.40).
The mode of connection is as follows:
Two terminal short circuits of high-pressure side: A, B; Two terminal short circuits of X, Y.Draw from A (or B) terminal and to connect reactor (when series resonance adopts the output of high pressure winding), X (or Y) terminal ground connection.
Two terminal short circuits of medium voltage side: Am, Bm; Two terminal short circuits of Xm, Ym.Draw from Am (or Bm) terminal and to connect reactor when pressing winding output (series resonance adopt), Xm (or Ym) terminal is drawn ground connection.
Two terminal short circuits of low-pressure side: x1, b1, two terminal short circuits of y1, a2, two terminal short circuits of x2, b2.Draw from a1 terminal and y2 and to connect power supply.
The two winding parallel connections of described high-pressure side, medium voltage side two windings in series, low-pressure side four winding parallel connections, transformation ratio is: 35/20/0.45 (0.40,0.35).
The mode of connection is as follows:
Two terminal short circuits of high-pressure side: A, B; Two terminal short circuits of X, Y.Draw from A (or B) terminal and to connect reactor (when series resonance adopts the output of high pressure winding), X (or Y) terminal ground connection.
Two terminal short circuits of medium voltage side: Xm, Bm; Draw from the Am terminal and to connect reactor when pressing winding output (series resonance adopt), the Ym terminal is drawn ground connection.
Low-pressure side: a1, b1, four terminal short circuits of a2, b2; X1, y1, four terminal short circuits of x2, y2.Draw and connect power supply from a1 (or b1, a2, b2) terminal and x1 (or y1, x2, y2) terminal.
The two winding parallel connections of described high-pressure side, medium voltage side two windings in series, low-pressure side four windings two go here and there two also, and transformation ratio is: 35/20/0.90 (0.80,0.70).
The mode of connection is as follows:
Two terminal short circuits of high-pressure side: A, B; Two terminal short circuits of X, Y.Draw from A (or B) terminal and to connect reactor (when series resonance adopts the output of high pressure winding), X (or Y) terminal ground connection.
Two terminal short circuits of medium voltage side: Xm, Bm; Draw from the Am terminal and to connect reactor when pressing winding output (series resonance adopt), the Ym terminal is drawn ground connection.
Two terminal short circuits of low-pressure side: a1, b1, two terminal short circuits of x1, y1; Two terminal short circuits of a2, b2, two terminal short circuits of x2, y2.X1 (or y1) terminal again with a2 (or b2) short circuit.Draw from a1 (or b1) terminal and x2 (or y2) and to connect power supply.
The two winding parallel connections of described high-pressure side, medium voltage side two windings in series, low-pressure side four windings in series, transformation ratio is: 35/20/1.80 (1.60,1.40).
The mode of connection is as follows:
Two terminal short circuits of high-pressure side: A, B; Two terminal short circuits of X, Y.Draw from A (or B) terminal and to connect reactor (when series resonance adopts the output of high pressure winding), X (or Y) terminal ground connection.
Two terminal short circuits of medium voltage side: Xm, Bm; Draw from the Am terminal and to connect reactor when pressing winding output (series resonance adopt), the Ym terminal is drawn ground connection.
Two terminal short circuits of low-pressure side: x1, b1, two terminal short circuits of y1, a2, two terminal short circuits of x2, b2.Draw from a1 terminal and y2 and to connect power supply.
Described high-pressure side two windings in series, medium voltage side two winding parallel connections, low-pressure side four winding parallel connections, transformation ratio is: 70/10/0.45 (0.40,0.35).
The mode of connection is as follows:
Two terminal short circuits of high-pressure side: B, X; Draw from the A terminal and to connect reactor (when series resonance adopts the output of high pressure winding), Y terminal ground connection.
Two terminal short circuits of medium voltage side: Am, Bm; Two terminal short circuits of Xm, Ym.Draw from Am (or Bm) terminal and to connect reactor when pressing winding output (series resonance adopt), Xm (or Ym) terminal is drawn ground connection.
Low-pressure side: a1, b1, four terminal short circuits of a2, b2; X1, y1, four terminal short circuits of x2, y2.Draw and connect power supply from a1 (or b1, a2, b2) terminal and x1 (or y1, x2, y2) terminal.
Described high-pressure side two windings in series, medium voltage side two winding parallel connections, low-pressure side four windings two go here and there two also, and transformation ratio is: 70/10/0.90 (0.80,0.70).
The mode of connection is as follows:
Two terminal short circuits of high-pressure side: B, X; Draw from the A terminal and to connect reactor (when series resonance adopts the output of high pressure winding), Y terminal ground connection.
Two terminal short circuits of medium voltage side: Am, Bm; Two terminal short circuits of Xm, Ym.Draw from Am (or Bm) terminal and to connect reactor when pressing winding output (series resonance adopt), Xm (or Ym) terminal is drawn ground connection.
Two terminal short circuits of low-pressure side: a1, b1, two terminal short circuits of x1, y1; Two terminal short circuits of a2, b2, two terminal short circuits of x2, y2.X1 (or y1) terminal again with a2 (or b2) short circuit.Draw from a1 (or b1) terminal and x2 (or y2) and to connect power supply.
Described high-pressure side two windings in series, medium voltage side two winding parallel connections, low-pressure side four windings in series, transformation ratio is: 70/10/1.80 (1.60,1.40).
The mode of connection is as follows:
Two terminal short circuits of high-pressure side: B, X; Draw from the A terminal and to connect reactor (when series resonance adopts the output of high pressure winding), Y terminal ground connection.
Two terminal short circuits of medium voltage side: Am, Bm; Two terminal short circuits of Xm, Ym.Draw from Am (or Bm) terminal and to connect reactor when pressing winding output (series resonance adopt), Xm (or Ym) terminal is drawn ground connection.
Two terminal short circuits of low-pressure side: x1, b1, two terminal short circuits of y1, a2, two terminal short circuits of x2, b2.Draw from a1 terminal and y2 and to connect power supply.
Described high-pressure side two windings in series, medium voltage side two windings in series, low-pressure side four winding parallel connections, transformation ratio is: 70/20/0.45 (0.40,0.35).
The mode of connection is as follows:
Two terminal short circuits of high-pressure side: B, X; Draw from the A terminal and to connect reactor (when series resonance adopts the output of high pressure winding), Y terminal ground connection.
Two terminal short circuits of medium voltage side: Xm, Bm; Draw from the Am terminal and to connect reactor when pressing winding output (series resonance adopt), the Ym terminal is drawn ground connection.
Low-pressure side: a1, b1, four terminal short circuits of a2, b2; X1, y1, four terminal short circuits of x2, y2.Draw and connect power supply from a1 (or b1, a2, b2) terminal and x1 (or y1, x2, y2) terminal.
Described high-pressure side two windings in series, medium voltage side two windings in series, low-pressure side four windings two go here and there two also, and transformation ratio is: 70/20/0.90 (0.80,0.70).
The mode of connection is as follows:
Two terminal short circuits of high-pressure side: B, X; Draw from the A terminal and to connect reactor (when series resonance adopts the output of high pressure winding), Y terminal ground connection.
Two terminal short circuits of medium voltage side: Xm, Bm; Draw from the Am terminal and to connect reactor when pressing winding output (series resonance adopt), the Ym terminal is drawn ground connection.
Two terminal short circuits of low-pressure side: a1, b1, two terminal short circuits of x1, y1; Two terminal short circuits of a2, b2, two terminal short circuits of x2, y2.X1 (or y1) terminal again with a2 (or b2) short circuit.Draw from a1 (or b1) terminal and x2 (or y2) and to connect power supply.
Described high-pressure side two windings in series, medium voltage side two windings in series, low-pressure side four windings in series, transformation ratio is: 70/20/1.80 (1.60,1.40).
The mode of connection is as follows:
Two terminal short circuits of high-pressure side: B, X; Draw from the A terminal and to connect reactor (when series resonance adopts the output of high pressure winding), Y terminal ground connection.
Two terminal short circuits of medium voltage side: Xm, Bm; Draw from the Am terminal and to connect reactor when pressing winding output (series resonance adopt), the Ym terminal is drawn ground connection.
Two terminal short circuits of low-pressure side: x1, b1, two terminal short circuits of y1, a2, two terminal short circuits of x2, b2.Draw from a1 terminal and y2 and to connect power supply.
Because the utilization of technique scheme, the utility model compared with prior art has following advantage:
This programme has high-pressure side, medium voltage side, low-pressure side; Described high-pressure side two windings, medium voltage side two windings, low-pressure side four windings; By the reasonable cooperation of high-pressure side winding, medium voltage side winding, low-pressure side winding, promptly see the test requirements document of satisfying a kind of different at the trial frequency requirement, different electric pressures and can prevent overcurrent at the trial.
Below only be concrete exemplary applications of the present utility model, protection range of the present utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technical scheme of formation, or any to move mode dull and stereotyped described in the utility model, all drop within the utility model rights protection scope.
Claims (10)
1. a multifrequency polytropic ratio excitation transformer is characterized in that: comprise high-pressure side, medium voltage side, low-pressure side; Described high-pressure side two windings, medium voltage side two windings, low-pressure side four windings.
2. multifrequency polytropic ratio excitation transformer according to claim 1 is characterized in that: the two winding parallel connections of described high-pressure side, medium voltage side two winding parallel connections, low-pressure side four winding parallel connections.
3. multifrequency polytropic ratio excitation transformer according to claim 1 is characterized in that: high-pressure side two winding parallel connections, and medium voltage side two winding parallel connections, low-pressure side four windings two strings two are also.
4. multifrequency polytropic ratio excitation transformer according to claim 1 is characterized in that: high-pressure side two winding parallel connections, medium voltage side two winding parallel connections, low-pressure side four windings in series.
5. multifrequency polytropic ratio excitation transformer according to claim 1 is characterized in that: high-pressure side two winding parallel connections, medium voltage side two windings in series, low-pressure side four winding parallel connections.
6. multifrequency polytropic ratio excitation transformer according to claim 1 is characterized in that: high-pressure side two winding parallel connections, and medium voltage side two windings in series, low-pressure side four windings two strings two are also.
7. multifrequency polytropic ratio excitation transformer according to claim 1 is characterized in that: high-pressure side two winding parallel connections, medium voltage side two windings in series, low-pressure side four windings in series.
8. multifrequency polytropic ratio excitation transformer according to claim 1 is characterized in that: high-pressure side two windings in series, medium voltage side two winding parallel connections, low-pressure side four winding parallel connections.
9. multifrequency polytropic ratio excitation transformer according to claim 1 is characterized in that: high-pressure side two windings in series, and medium voltage side two winding parallel connections, low-pressure side four windings two strings two are also.
10. multifrequency polytropic ratio excitation transformer according to claim 1 is characterized in that: high-pressure side two windings in series, medium voltage side two winding parallel connections, low-pressure side four windings in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202847835U CN201576551U (en) | 2009-12-07 | 2009-12-07 | Multifrequency multi-transformation ratio exciting transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202847835U CN201576551U (en) | 2009-12-07 | 2009-12-07 | Multifrequency multi-transformation ratio exciting transformer |
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| Publication Number | Publication Date |
|---|---|
| CN201576551U true CN201576551U (en) | 2010-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202847835U Expired - Fee Related CN201576551U (en) | 2009-12-07 | 2009-12-07 | Multifrequency multi-transformation ratio exciting transformer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102043077A (en) * | 2010-10-28 | 2011-05-04 | 河南省电力公司平顶山供电公司 | Full-automatic variable bridge |
| CN102082022B (en) * | 2009-11-30 | 2012-07-25 | 苏州华电电气股份有限公司 | Multi-frequency multi-ratio transformer |
| CN104766713A (en) * | 2015-04-01 | 2015-07-08 | 李跃东 | Assembled frequency modulation transformer |
-
2009
- 2009-12-07 CN CN2009202847835U patent/CN201576551U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102082022B (en) * | 2009-11-30 | 2012-07-25 | 苏州华电电气股份有限公司 | Multi-frequency multi-ratio transformer |
| CN102043077A (en) * | 2010-10-28 | 2011-05-04 | 河南省电力公司平顶山供电公司 | Full-automatic variable bridge |
| CN104766713A (en) * | 2015-04-01 | 2015-07-08 | 李跃东 | Assembled frequency modulation transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SUZHOU HUADIAN ELECTRIC CO., LTD. Free format text: FORMER NAME: SUZHOU HUADIAN ELECTRIC TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Good East Industrial Park Wuzhong Economic Development Zone Suzhou city Jiangsu province 215124 Pu Road No. 255 Patentee after: Suzhou Huadian Electric Co., Ltd. Address before: Good East Industrial Park Wuzhong Economic Development Zone Suzhou city Jiangsu province 215124 Pu Road No. 255 Patentee before: Suzhou Huadian Electric Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100908 Termination date: 20141207 |
|
| EXPY | Termination of patent right or utility model |