CN102082022B - Multi-frequency multi-ratio transformer - Google Patents
Multi-frequency multi-ratio transformer Download PDFInfo
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- CN102082022B CN102082022B CN2009102327318A CN200910232731A CN102082022B CN 102082022 B CN102082022 B CN 102082022B CN 2009102327318 A CN2009102327318 A CN 2009102327318A CN 200910232731 A CN200910232731 A CN 200910232731A CN 102082022 B CN102082022 B CN 102082022B
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Abstract
The present invention discloses a multi-frequency multi-ratio transformer which comprises a high voltage side, a medium voltage side and a 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. According to the technical solution, the high voltage side, the medium voltage side and the low voltage side are provided. 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. Through reasonably matching the high voltage side windings, the medium voltage side windings and the low voltage side windings, the multi-frequency multi-ratio transformer has the following advantages: satisfying different frequency requirements in experiment and experiment requests of different voltage grades, and preventing overcurrent in experiment.
Description
Technical field
The present invention relates to a kind of transformer, particularly a kind of ability 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; Sometimes need 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.
Summary of the invention
To the technical problem of above-mentioned existence, the purpose of this invention is to provide test requirements document that a kind of ability satisfies different at the trial frequency requirement, different electric pressures, prevent the multifrequency polytropic ratio excitation transformer of overcurrent at the trial.
Realize that technical scheme of the present invention is: a kind of multifrequency polytropic ratio transformer comprises high-pressure side, medium voltage side, low-pressure side; Said high-pressure side two windings, medium voltage side two windings, low-pressure side four windings; The two windings parallel connection of said high-pressure side; Said medium voltage side two windings parallel connection or parallelly connected; Said low-pressure side four windings parallel connection or series connection or two strings two are also.
Because the utilization of technique scheme, the present invention compared with prior art has advantage:
This programme has high-pressure side, medium voltage side, low-pressure side; Said high-pressure side two windings, medium voltage side two windings, low-pressure side four windings; Through 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 scheme of the present invention is described further:
Accompanying drawing 1: be the theory diagram of multifrequency polytropic ratio transformer of the present invention;
Wherein: 1, high-pressure side; 2, medium voltage side; 3, low-pressure side.
Embodiment:
Of the present invention a kind of multifrequency polytropic ratio transformer shown in accompanying drawing 1 comprises high-pressure side 1, medium voltage side 2, low-pressure side 3; Said high-pressure side two windings, medium voltage side two windings, low-pressure side four windings.
The two windings parallel connection of said high-pressure side, the parallel connection of medium voltage side two windings, the parallel connection of low-pressure side four windings, transformation ratio is: 35/10/0.45 (0.40,0.35).
The mode of connection is following:
High-pressure side: A, two terminal short circuits of B; X, two terminal short circuits of 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.
Medium voltage side: Am, two terminal short circuits of Bm; Xm, two terminal short circuits of 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, a2, four terminal short circuits of b2; X1, y1, x2, four terminal short circuits of y2.Draw and connect power supply from a1 (or b1, a2, b2) terminal and x1 (or y1, x2, y2) terminal.
The two windings parallel connection of said high-pressure side, the parallel connection of medium voltage side two windings, 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 following:
High-pressure side: A, two terminal short circuits of B; X, two terminal short circuits of 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.
Medium voltage side: Am, two terminal short circuits of Bm; Xm, two terminal short circuits of 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, two terminal short circuits of b1, x1, two terminal short circuits of y1; A2, two terminal short circuits of b2, x2, two terminal short circuits of y2.X1 (or y1) terminal again with a2 (or b 2) short circuit.Draw from a1 (or b1) terminal and x2 (or y2) and to connect power supply.
The two windings parallel connection of said high-pressure side, the parallel connection of medium voltage side two windings, low-pressure side four windings in series, transformation ratio is: 35/10/1.80 (1.60,1.40).
The mode of connection is following:
High-pressure side: A, two terminal short circuits of B; X, two terminal short circuits of 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.
Medium voltage side: Am, two terminal short circuits of Bm; Xm, two terminal short circuits of 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: x1, two terminal short circuits of b1, y1, two terminal short circuits of a2, x2, two terminal short circuits of b2.Draw from a1 terminal and y2 and to connect power supply.
The two windings parallel connection of said high-pressure side, medium voltage side two windings in series, the parallel connection of low-pressure side four windings, transformation ratio is: 35/20/0.45 (0.40,0.35).
The mode of connection is following:
High-pressure side: A, two terminal short circuits of B; X, two terminal short circuits of 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.
Medium voltage side: Xm, two terminal short circuits of 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, a2, four terminal short circuits of b2; X1, y1, x2, four terminal short circuits of y2.Draw and connect power supply from a1 (or b1, a2, b2) terminal and x1 (or y1, x2, y2) terminal.
The two windings parallel connection of said 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 following:
High-pressure side: A, two terminal short circuits of B; X, two terminal short circuits of 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.
Medium voltage side: Xm, two terminal short circuits of 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, two terminal short circuits of b1, x1, two terminal short circuits of y1; A2, two terminal short circuits of b2, x2, two terminal short circuits of 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 windings parallel connection of said 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 following:
High-pressure side: A, two terminal short circuits of B; X, two terminal short circuits of 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.
Medium voltage side: Xm, two terminal short circuits of 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: x1, two terminal short circuits of b1, y1, two terminal short circuits of a2, x2, two terminal short circuits of b2.Draw from a1 terminal and y2 and to connect power supply.
Said high-pressure side two windings in series, the parallel connection of medium voltage side two windings, the parallel connection of low-pressure side four windings, transformation ratio is: 70/10/0.45 (0.40,0.35).
The mode of connection is following:
High-pressure side: B, two terminal short circuits of X; Draw from the A terminal and to connect reactor
(when series resonance adopts the output of high pressure winding), Y terminal ground connection.
Medium voltage side: Am, two terminal short circuits of Bm; Xm, two terminal short circuits of 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, a2, four terminal short circuits of b2; X1, y1, x2, four terminal short circuits of y2.Draw and connect power supply from a1 (or b1, a2, b2) terminal and x1 (or y1, x2, y2) terminal.
Said high-pressure side two windings in series, the parallel connection of medium voltage side two windings, 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 following:
High-pressure side: B, two terminal short circuits of X; Draw from the A terminal and to connect reactor (when series resonance adopts the output of high pressure winding), Y terminal ground connection.
Medium voltage side: Am, two terminal short circuits of Bm; Xm, two terminal short circuits of 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, two terminal short circuits of b1, x1, two terminal short circuits of y1; A2, two terminal short circuits of b2, x2, two terminal short circuits of 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.
Said high-pressure side two windings in series, the parallel connection of medium voltage side two windings, low-pressure side four windings in series, transformation ratio is: 70/10/1.80 (1.60,1.40).
The mode of connection is following:
High-pressure side: B, two terminal short circuits of X; Draw from the A terminal and to connect reactor (when series resonance adopts the output of high pressure winding), Y terminal ground connection.
Medium voltage side: Am, two terminal short circuits of Bm; Xm, two terminal short circuits of 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: x1, two terminal short circuits of b1, y1, two terminal short circuits of a2, x2, two terminal short circuits of b2.Draw from a1 terminal and y2 and to connect power supply.
Said high-pressure side two windings in series, medium voltage side two windings in series, the parallel connection of low-pressure side four windings, transformation ratio is: 70/20/0.45 (0.40,0.35).
The mode of connection is following:
High-pressure side: B, two terminal short circuits of X; Draw from the A terminal and to connect reactor (when series resonance adopts the output of high pressure winding), Y terminal ground connection.
Medium voltage side: Xm, two terminal short circuits of 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, a2, four terminal short circuits of b2; X1, y1, x2, four terminal short circuits of y2.Draw and connect power supply from a1 (or b1, a2, b2) terminal and x1 (or y1, x2, y2) terminal.
Said 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 following:
High-pressure side: B, two terminal short circuits of X; Draw from the A terminal and to connect reactor (when series resonance adopts the output of high pressure winding), Y terminal ground connection.
Medium voltage side: Xm, two terminal short circuits of 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, two terminal short circuits of b1, x1, two terminal short circuits of y1; A2, two terminal short circuits of b2, x2, two terminal short circuits of 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.
Said 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 following:
High-pressure side: B, two terminal short circuits of X; Draw from the A terminal and to connect reactor (when series resonance adopts the output of high pressure winding), Y terminal ground connection.
Medium voltage side: Xm, two terminal short circuits of 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: x1, two terminal short circuits of b1, y1, two terminal short circuits of a2, x2, two terminal short circuits of b2.Draw from a1 terminal and y2 and to connect power supply.
Because the utilization of technique scheme, the present invention compared with prior art has advantage:
This programme has high-pressure side, medium voltage side, low-pressure side; Said high-pressure side two windings, medium voltage side two windings, low-pressure side four windings; Through 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 invention, protection scope of the present invention 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 present invention, all drop within the rights protection scope of the present invention.
Claims (1)
1. a multifrequency polytropic ratio transformer is characterized in that: comprise high-pressure side, medium voltage side, low-pressure side; Said high-pressure side two windings, medium voltage side two windings, low-pressure side four windings; The two windings parallel connection of said high-pressure side; Said medium voltage side two windings parallel connection or series connection; Said low-pressure side four windings parallel connection or series connection or two strings two are also.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102327318A CN102082022B (en) | 2009-11-30 | 2009-11-30 | Multi-frequency multi-ratio transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102327318A CN102082022B (en) | 2009-11-30 | 2009-11-30 | Multi-frequency multi-ratio transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102082022A CN102082022A (en) | 2011-06-01 |
| CN102082022B true CN102082022B (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102327318A Active CN102082022B (en) | 2009-11-30 | 2009-11-30 | Multi-frequency multi-ratio transformer |
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| CN (1) | CN102082022B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102568775A (en) * | 2011-12-29 | 2012-07-11 | 保定天威集团(江苏)五洲变压器有限公司 | Variable test medium transformer device |
| CN104616868A (en) * | 2015-02-05 | 2015-05-13 | 周玉红 | Multilevel conversion transformer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4247841A (en) * | 1978-11-06 | 1981-01-27 | Hitachi, Ltd. | Three winding transformer |
| CN1529404A (en) * | 2003-09-26 | 2004-09-15 | 勇 谭 | Three-phase split phase-shifting transformer for high-voltage frequency conversion and its use |
| CN1529331A (en) * | 2003-10-17 | 2004-09-15 | 北京交通大学 | Secondary side central-tapped scott wiring transformer |
| CN2914278Y (en) * | 2006-06-27 | 2007-06-20 | 西安西电变压器有限责任公司 | Single-phase auto-powerstat |
| CN200972819Y (en) * | 2006-11-23 | 2007-11-07 | 西安西电变压器有限责任公司 | Extra-high voltage self auto-transformer |
| CN201576551U (en) * | 2009-12-07 | 2010-09-08 | 苏州市华电电气技术有限公司 | Multifrequency multi-transformation ratio exciting transformer |
-
2009
- 2009-11-30 CN CN2009102327318A patent/CN102082022B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4247841A (en) * | 1978-11-06 | 1981-01-27 | Hitachi, Ltd. | Three winding transformer |
| CN1529404A (en) * | 2003-09-26 | 2004-09-15 | 勇 谭 | Three-phase split phase-shifting transformer for high-voltage frequency conversion and its use |
| CN1529331A (en) * | 2003-10-17 | 2004-09-15 | 北京交通大学 | Secondary side central-tapped scott wiring transformer |
| CN2914278Y (en) * | 2006-06-27 | 2007-06-20 | 西安西电变压器有限责任公司 | Single-phase auto-powerstat |
| CN200972819Y (en) * | 2006-11-23 | 2007-11-07 | 西安西电变压器有限责任公司 | Extra-high voltage self auto-transformer |
| CN201576551U (en) * | 2009-12-07 | 2010-09-08 | 苏州市华电电气技术有限公司 | Multifrequency multi-transformation ratio exciting transformer |
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| CN102082022A (en) | 2011-06-01 |
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