CN103280303A - Double series-parallel connection conversion wiring device of oil-immersed transformer - Google Patents
Double series-parallel connection conversion wiring device of oil-immersed transformer Download PDFInfo
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- CN103280303A CN103280303A CN2013102059344A CN201310205934A CN103280303A CN 103280303 A CN103280303 A CN 103280303A CN 2013102059344 A CN2013102059344 A CN 2013102059344A CN 201310205934 A CN201310205934 A CN 201310205934A CN 103280303 A CN103280303 A CN 103280303A
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Abstract
A double series-parallel connection conversion wiring device of an oil immersed transformer relates to a transformer wiring device. At present, in a high-voltage large-current test transformer, an internal and external conversion combined mode is generally adopted, the structure is complex, and the cost is high. The invention is characterized in that: three series-parallel conversion off-circuit tap switches are arranged in the transformer oil tank, the windings are connected through the series-parallel conversion off-circuit tap switches, and series-parallel conversion between the windings is achieved by rotating the series-parallel conversion off-circuit tap switches, so that multi-level voltage output is achieved. Because the voltage conversion is completely carried out in the oil tank, the number of outlet bushings of the transformer is greatly reduced, manual wiring or series-parallel connection conversion disconnecting links are not needed outside the transformer, and the investment and the floor area of a test station are reduced.
Description
Technical field
The present invention relates to a kind of transformer connection device.
Background technology
At present, in the testing transformer of high-voltage large current, for obtaining multiple test voltage, must carry out conversion to the basic winding connection of transformer, the mode that generally adopts inside and outside conversion to combine, the outlet of the transformer of wiring need be drawn a lot of sleeve pipes in this way, simultaneously externally also the conversion disconnecting link to be set, equipment investment and floor space have been increased, complex structure, cost height.
Summary of the invention
The technical assignment of the technical problem to be solved in the present invention and proposition is that the prior art scheme is improved and improved, the dual connection in series-parallel conversion termination of oil-filled transformer is provided, simplify the outside outlet of transformer to reach, reduce floor space, reduce the equipment investment purpose.For this reason, the present invention takes following technical scheme.
The dual connection in series-parallel conversion termination of oil-filled transformer, oil-filled transformer comprises fuel tank, is located at iron core and a plurality of winding in the fuel tank, it is characterized in that: be provided with three connection in series-parallel conversion off circuit tap changers in the oil tank of transformer, connection in series-parallel conversion off circuit tap changer is provided with first moving contact, second moving contact, first fixed contact, second fixed contact, the 3rd fixed contact, the 4th fixed contact, the 5th fixed contact, the 6th fixed contact, first moving contact and the interlock of second moving contact; Rotation connection in series-parallel conversion off circuit tap changer drives first moving contact and second moving contact rotates, can form two kinds of connection status, first connection status is that first fixed contact, second fixed contact connect by first moving contact, simultaneously, the 5th fixed contact, the 6th fixed contact connect by second moving contact; Second connection status is that second fixed contact, the 3rd fixed contact connect by first moving contact, and simultaneously, the 4th fixed contact, the 5th fixed contact connect by second moving contact; Connect by connection in series-parallel conversion off circuit tap changer between first winding, second winding, the tertiary winding, the 4th winding, rotation connection in series-parallel conversion off circuit tap changer is realized the connection in series-parallel conversion between the winding, reaches the output of multilevel voltage.Because its voltage transitions is all carried out at fuel tank internal, and the outlet sleeve pipe quantity of transformer is greatly reduced, the transformer outside also need not artificial wiring or connection in series-parallel conversion disconnecting link is set, and has reduced investment and the floor space of experiment station.
As the further of technique scheme improved and replenish, the present invention also comprises following additional technical feature.
Winding comprises first winding, second winding, the tertiary winding, the 4th winding; Be provided with three connection in series-parallel conversion off circuit tap changers in the fuel tank, described three connection in series-parallel conversion off circuit tap changer is respectively first shunting switch, second shunting switch, the 3rd shunting switch; First fixed contact of first shunting switch is connected with the input of first winding, second fixed contact of first shunting switch is connected with the input of second winding, the 3rd fixed contact of first shunting switch is connected with the output of first winding, the 4th fixed contact of first shunting switch is vacant, the 5th fixed contact of first shunting switch is connected with the output of first winding, and the 6th fixed contact of first shunting switch is connected with the output of second winding; First fixed contact of the 3rd shunting switch is connected with the input of the tertiary winding, second fixed contact of first shunting switch is connected with the input of the 4th winding, the 3rd fixed contact of first shunting switch is connected with the output of the tertiary winding, the 4th fixed contact of first shunting switch is vacant, the 5th fixed contact of first shunting switch is connected with the output of the tertiary winding, and the 6th fixed contact of first shunting switch is connected with the output of the 4th winding; First fixed contact of second shunting switch is connected with the input of first winding, second fixed contact of second shunting switch is connected with the input of the tertiary winding, the 3rd fixed contact of second shunting switch is connected with the output of second winding, the 4th fixed contact of second shunting switch is vacant, the 5th fixed contact of second shunting switch is connected with the output of second winding, and the 6th fixed contact of second shunting switch is connected with the output of the 4th winding.Cooperate by different connection status between first shunting switch, second shunting switch, the 3rd shunting switch, realize that the connection in series-parallel conversion between first winding, second winding, the tertiary winding, the 4th winding connects, thereby realize the voltage output of more multistage number.
Described fuel tank is provided with and drives the drive unit that connection in series-parallel conversion off circuit tap changer rotates.
Described fuel tank is offered axis hole, and Kong Zhongshe and the rotating shaft that connection conversion off circuit tap changer is connected establish seal between axis hole and the rotating shaft.
Described first winding, second winding, the tertiary winding, the 4th winding all can be formed by one or more winding connection in series-parallel equivalences, are that two windings are formed in parallel in the example.
Beneficial effect: adopt three connection in series-parallel conversion off circuit tap changers, can realize series-parallel conversion of four groups of windings, thereby the voltage of realizing more multistage number is exported, adopt the transformer of this mode of connection all to carry out at fuel tank internal owing to its voltage transitions, the outlet sleeve pipe quantity of transformer is greatly reduced, the transformer outside also need not artificial wiring or connection in series-parallel conversion disconnecting link is set, and has reduced investment and the floor space of experiment station.
Description of drawings
Fig. 1 is elementary diagram of the present invention.
Among the figure: 1-first moving contact, 2-second moving contact, 3-first fixed contact, 4-second fixed contact, 5-the 3rd fixed contact, 6-the 4th fixed contact, 7-the 5th fixed contact, 8-the 6th fixed contact, 9-first winding, 10-second winding, the 11-tertiary winding, 12-the 4th winding, N1-first shunting switch, N2-second shunting switch, N3-the 3rd shunting switch.
Embodiment
Below in conjunction with Figure of description technical scheme of the present invention is described in further detail.
Soak the formula transformer and comprise fuel tank, be located at iron core and a plurality of winding in the fuel tank, one phase winding comprises first winding 9, second winding 10, the tertiary winding 11, the 4th winding 12, be provided with three connection in series-parallel conversion off circuit tap changers in the fuel tank, connection in series-parallel conversion off circuit tap changer is provided with first moving contact 1, second moving contact 2, first fixed contact 3, second fixed contact 4, the 3rd fixed contact 5, the 4th fixed contact 6, the 5th fixed contact 7, the 6th fixed contact 8, first moving contact 1 wherein, first fixed contact 3, second fixed contact 4, the 3rd fixed contact 5 is the first switch cooperation group, second moving contact 2, the 4th fixed contact 6, the 5th fixed contact 7, the 6th fixed contact 8 is second switch cooperation group, first moving contact 1 and 2 interlocks of second moving contact; Rotation connection in series-parallel conversion off circuit tap changer drives first moving contact 1 and second moving contact 2 rotates, can form two kinds of connection status, first connection status is that first fixed contact 3, second fixed contact 4 connect by first moving contact 1, simultaneously, the 5th fixed contact 7, the 6th fixed contact 8 connect by second moving contact 2; Second connection status is that second fixed contact 4, the 3rd fixed contact 5 connect by first moving contact 1, and simultaneously, the 4th fixed contact 6, the 5th fixed contact 7 connect by second moving contact 2; Described three connection in series-parallel conversion off circuit tap changer is respectively the first shunting switch N1, the second shunting switch N2, the 3rd shunting switch N3; First fixed contact 3 of the first shunting switch N1 is connected with the input of first winding 9, second fixed contact 4 of the first shunting switch N1 is connected with the input of second winding 10, the 3rd fixed contact 5 of the first shunting switch N1 is connected with the output of first winding 9, the 4th fixed contact 6 of the first shunting switch N1 is vacant, the 5th fixed contact 7 of the first shunting switch N1 is connected with the output of first winding 9, and the 6th fixed contact 8 of the first shunting switch N1 is connected with the output of second winding 10; First fixed contact 3 of the 3rd shunting switch N3 is connected with the input of the tertiary winding 11, second fixed contact 4 of the first shunting switch N1 is connected with the input of the 4th winding 12, the 3rd fixed contact 5 of the first shunting switch N1 is connected with the output of the tertiary winding 11, the 4th fixed contact 6 of the first shunting switch N1 is vacant, the 5th fixed contact 7 of the first shunting switch N1 is connected with the output of the tertiary winding 11, and the 6th fixed contact 8 of the first shunting switch N1 is connected with the output of the 4th winding 12; First fixed contact 3 of the second shunting switch N2 is connected with the input of first winding 9, second fixed contact 4 of the second shunting switch N2 is connected with the input of the tertiary winding 11, the 3rd fixed contact 5 of the second shunting switch N2 is connected with the output of second winding 10, the 4th fixed contact 6 of the second shunting switch N2 is vacant, the 5th fixed contact 7 of the second shunting switch N2 is connected with the output of second winding 10, and the 6th fixed contact 8 of the second shunting switch N2 is connected with the output of the 4th winding 12.First winding 9, second winding 10, the tertiary winding 11, the 4th winding 12 all can be formed by one or more winding connection in series-parallel equivalences, are that two windings are formed in parallel in the example.
Fuel tank is provided with and drives the drive unit that connection in series-parallel conversion off circuit tap changer rotates.Drive unit can be artificial actuating device or Vidacare corp.Described fuel tank is offered axis hole, and Kong Zhongshe and the rotating shaft that connection conversion off circuit tap changer is connected establish seal between axis hole and the rotating shaft.
Adopt three connection in series-parallel conversion off circuit tap changers, can realize the connection in series-parallel conversion of four groups of windings, thereby realize the voltage output of more multistage number.Its job order is the first shunting switch N1, the 3rd shunting switch N3 carries out a connection in series-parallel to two groups of windings respectively separately and connects, by the second shunting switch N2 above two voltages that obtain are carried out another connection in series-parallel conversion more afterwards, adopt the transformer of this mode of connection all to carry out at fuel tank internal owing to its voltage transitions, the outlet sleeve pipe quantity of transformer is greatly reduced, the transformer outside also need not artificial wiring or connection in series-parallel conversion disconnecting link is set, reduced investment and the floor space of experiment station, this mode of connection can be successfully applied to the single-phase sudden short circuit testing transformer of 1200MVA/330kV high-capacity.
More than the dual connection in series-parallel conversion termination of oil-filled transformer shown in Figure 1 be specific embodiments of the invention; substantive distinguishing features and marked improvement that the present invention gives prominence to have been embodied; can be according to the use needs of reality; under enlightenment of the present invention; it is carried out the equivalent modifications of aspects such as shape, structure, all at the row of the protection range of this programme.
Claims (5)
1. termination is changed in the dual connection in series-parallel of oil-filled transformer, the oil-filled transformer of dual connection in series-parallel conversion termination comprises fuel tank, iron core and winding, and it is characterized in that: winding comprises first winding (9), second winding (10), the tertiary winding (11), the 4th winding (12); Be provided with three connection in series-parallel conversion off circuit tap changers in the oil tank of transformer, each connection in series-parallel conversion off circuit tap changer is equipped with first moving contact (1), second moving contact (2), first fixed contact (3), second fixed contact (4), the 3rd fixed contact (5), the 4th fixed contact (6), the 5th fixed contact (7), the 6th fixed contact (8), first moving contact (1) and second moving contact (2) interlock; Rotation connection in series-parallel conversion off circuit tap changer drives first moving contact (1) and second moving contact (2) rotates, can form two kinds of connection status, first connection status is that first fixed contact (3), second fixed contact (4) connect by first moving contact (1), simultaneously, the 5th fixed contact (7), the 6th fixed contact (8) connect by second moving contact (2), form and tie; Second connection status is that second fixed contact (4), the 3rd fixed contact (5) connect by first moving contact (1), and simultaneously, the 4th fixed contact (6), the 5th fixed contact (7) connect by second moving contact (2), form series wiring; Connect by connection in series-parallel conversion off circuit tap changer between first winding (9), second winding (10), the tertiary winding (11), the 4th winding (12), rotation connection in series-parallel conversion off circuit tap changer is realized the connection in series-parallel conversion between the winding, reaches the output of multilevel voltage.
2. termination is changed in the dual connection in series-parallel of oil-filled transformer according to claim 1, it is characterized in that: described three connection in series-parallel conversion off circuit tap changer is respectively first shunting switch (N1), second shunting switch (N2), the 3rd shunting switch (N3); First fixed contact (3) of first shunting switch (N1) is connected with the input of first winding (9), second fixed contact (4) of first shunting switch (N1) is connected with the input of second winding (10), the 3rd fixed contact (5) of first shunting switch (N1) is connected with the output of first winding (9), the 4th fixed contact (6) of first shunting switch (N1) is vacant, the 5th fixed contact (7) of first shunting switch (N1) is connected with the output of first winding (9), and the 6th fixed contact (8) of first shunting switch (N1) is connected with the output of second winding (10); First fixed contact (3) of the 3rd shunting switch (N3) is connected with the input of the tertiary winding (11), second fixed contact (4) of first shunting switch (N1) is connected with the input of the 4th winding (12), the 3rd fixed contact (5) of first shunting switch (N1) is connected with the output of the tertiary winding (11), the 4th fixed contact (6) of first shunting switch (N1) is vacant, the 5th fixed contact (7) of first shunting switch (N1) is connected with the output of the tertiary winding (11), and the 6th fixed contact (8) of first shunting switch (N1) is connected with the output of the 4th winding (12); First fixed contact (3) of second shunting switch (N2) is connected with the input of first winding (9), second fixed contact (4) of second shunting switch (N2) is connected with the input of the tertiary winding (11), the 3rd fixed contact (5) of second shunting switch (N2) is connected with the output of second winding (10), the 4th fixed contact (6) of second shunting switch (N2) is vacant, the 5th fixed contact (7) of second shunting switch (N2) is connected with the output of second winding (10), and the 6th fixed contact (8) of second shunting switch (N2) is connected with the output of the 4th winding (12).
3. termination is changed in the dual connection in series-parallel of oil-filled transformer according to claim 2, it is characterized in that: described fuel tank is provided with the drive unit that each self-driven connection in series-parallel conversion off circuit tap changer rotates.
4. termination is changed in the dual connection in series-parallel of oil-filled transformer according to claim 3, and it is characterized in that: described fuel tank is offered axis hole, and the rotating shaft that Kong Zhongshe and connection conversion off circuit tap changer are connected is established seal between axis hole and the rotating shaft.
5. according to the dual connection in series-parallel conversion termination of the described oil-filled transformer of the arbitrary claim of claim 1-4, it is characterized in that: described first winding (9), second winding (10), the tertiary winding (11), the 4th winding (12) all can be formed by one or more winding connection in series-parallel equivalences.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310205934.4A CN103280303B (en) | 2013-05-29 | 2013-05-29 | Double series-parallel connection conversion wiring device of oil-immersed transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310205934.4A CN103280303B (en) | 2013-05-29 | 2013-05-29 | Double series-parallel connection conversion wiring device of oil-immersed transformer |
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| CN103280303A true CN103280303A (en) | 2013-09-04 |
| CN103280303B CN103280303B (en) | 2016-01-27 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3855521A (en) * | 1972-05-24 | 1974-12-17 | Sony Corp | Transformer having switch means for causing series or parallel connection between plural primary or secondary winding |
| JPS60116116A (en) * | 1983-11-29 | 1985-06-22 | Fuji Electric Co Ltd | On-load tap changing autotransformer |
| CN101968995A (en) * | 2010-07-16 | 2011-02-09 | 四川电力试验研究院 | Loaded voltage-regulating reformation device of power transformer and transformation method thereof |
| CN202488358U (en) * | 2012-02-21 | 2012-10-10 | 陈守君 | Novel magnetic voltage controlled power supply |
| CN203406152U (en) * | 2013-05-29 | 2014-01-22 | 卧龙电气集团股份有限公司 | Dual serial-parallel transition wiring apparatus of oil-immersed transformer |
-
2013
- 2013-05-29 CN CN201310205934.4A patent/CN103280303B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3855521A (en) * | 1972-05-24 | 1974-12-17 | Sony Corp | Transformer having switch means for causing series or parallel connection between plural primary or secondary winding |
| JPS60116116A (en) * | 1983-11-29 | 1985-06-22 | Fuji Electric Co Ltd | On-load tap changing autotransformer |
| CN101968995A (en) * | 2010-07-16 | 2011-02-09 | 四川电力试验研究院 | Loaded voltage-regulating reformation device of power transformer and transformation method thereof |
| CN202488358U (en) * | 2012-02-21 | 2012-10-10 | 陈守君 | Novel magnetic voltage controlled power supply |
| CN203406152U (en) * | 2013-05-29 | 2014-01-22 | 卧龙电气集团股份有限公司 | Dual serial-parallel transition wiring apparatus of oil-immersed transformer |
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| CN103280303B (en) | 2016-01-27 |
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Address after: 312300 No. 1801 Renmin West Road, Shangyu City, Shaoxing City, Zhejiang Province Patentee after: WOLONG ELECTRIC GROUP Co.,Ltd. Patentee after: Zhejiang Baiyun Zhejiang Substation Electrical Equipment Co., Ltd Address before: 312300 No. 1801 Renmin West Road, Shangyu City, Shaoxing City, Zhejiang Province Patentee before: WOLONG ELECTRIC GROUP Co.,Ltd. Patentee before: Wolong Electric Group Zhejiang Transformer Co., Ltd |