CN104361984B - The constant flux voltage regulation structure of supertension self coupling power transformer - Google Patents
The constant flux voltage regulation structure of supertension self coupling power transformer Download PDFInfo
- Publication number
- CN104361984B CN104361984B CN201410715679.2A CN201410715679A CN104361984B CN 104361984 B CN104361984 B CN 104361984B CN 201410715679 A CN201410715679 A CN 201410715679A CN 104361984 B CN104361984 B CN 104361984B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Electrical Variables (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The present invention relates to autotransformer technical field, particularly relate to the constant flux voltage regulation structure of a kind of supertension self coupling power transformer.This structure includes main transformer body and adjustable transformer device body, main transformer body includes connect winding, public winding and the tertiary winding, adjustable transformer device body includes being enclosed within the tap-changing windings on same iron core and field winding, series connection winding is connected with public winding again after connecting with tap-changing windings, main transformer body is additionally provided with an excitatory tap-changing windings, excitatory tap-changing windings is enclosed within same iron core with winding of connecting, public winding, excitatory tap-changing windings is in parallel with field winding, and excitatory tap-changing windings is provided with tap changer.The autotransformer of the constant flux voltage regulation structure that the present invention provides, can realize the connection between two supergrids, uses constant flux voltage regulation mode, will not cause tertiary winding voltage pulsation and iron core overexcitation；Reduce the dielectric level of tap-changing windings simultaneously, reduce manufacture difficulty and the cost of shunting switch.
Description
Technical field
The present invention relates to autotransformer technical field, particularly relate to the constant flux voltage regulation structure of a kind of supertension self coupling power transformer.
Background technology
Supertension self coupling power transformer is usually used in the connecting transformer between two extra-high voltage transmissions, if when its electrical network coupled is extra high voltage system, then the series connection winding of this autotransformer, public winding are ultrahigh-voltage voltage grade.
If supertension self coupling power transformer uses pressure adjusting structure, general employing public winding line end pressure regulation or neutral point pressure regulation, public winding line end pressure regulation is constant flux voltage regulation, and neutral point pressure regulation is variable flux voltage variation (VFVV)；In view of neutral point voltage regulating mode can bring tertiary winding voltage pulsation and overexcitation unshakable in one's determination, therefore in electrical network, more requirement uses permanent magnetic flux line end pressure regulation, then the dielectric level of shunting switch depends primarily on the line end dielectric level of public winding.Public winding line end dielectric level is the highest, then shunting switch manufacture difficulty is the highest with price, if the dielectric level of public winding side has exceeded the manufacture level of existing switch, the most no longer can use traditional line end pressure adjusting structure.
Summary of the invention
In order to solve the problems referred to above, the present invention proposes a kind of novel constant flux voltage regulation structure, effectively reduces the dielectric level of supertension self coupling tapping switch for electric power transformer, reduces sub-connecting switch of transformer manufacture difficulty and cost.
For achieving the above object, the technical solution used in the present invention is:
A kind of constant flux voltage regulation structure of supertension self coupling power transformer, including main transformer body and adjustable transformer device body, main transformer body includes winding of connecting, public winding and the tertiary winding, adjustable transformer device body includes being enclosed within the tap-changing windings on same iron core and field winding, series connection winding is connected with public winding again after connecting with tap-changing windings, main transformer body is additionally provided with an excitatory tap-changing windings, excitatory tap-changing windings and winding of connecting, public winding is enclosed within same iron core, excitatory tap-changing windings is in parallel with field winding, excitatory tap-changing windings is provided with tap changer.
Further, the polarity of tap changer selects end to be connected with field winding head end, and the tap exit of tap changer is connected with the end of field winding.Switch gear by tap changer, control coil turn in parallel with field winding in excitatory tap-changing windings.
Main transformer and adjustable transformer are placed in two device bodies by the present invention, main transformer device body designs an excitatory tap-changing windings, outside this winding is independent of series connection winding and public winding, but all it is set on same iron core with winding of connecting, public winding, its Main Function is the principal post magnetic flux set up with public winding electromotive force by series connection winding, and electromotive force is introduced the tap-changing windings in modulator body by pressure regulation ratio as required.The certain point ground connection of excitatory tap-changing windings, it is allowed to current potential and is locked as earth potential, owing to excitatory tap-changing windings is series between series connection winding and public winding, when the tap changer gear being connected in tap-changing windings switches over, the excitatory tap-changing windings number of turn sealing in series connection winding and public winding changes therewith, causes the potential change of excitatory tap-changing windings, and the change of this electromotive force is by field winding introducing modulator body in parallel therewith, change the electromotive force of tap-changing windings, and then realize the function of regulation voltage.
No longer be directly accessed on-load voltage regulating switch due to tap-changing windings, excitatory tap-changing windings is directly accessed switch, and tap-changing windings really accesses switch indirectly by excitatory tap-changing windings and field winding.This mode reduces the dielectric level of winding that is directly connected with switch, so that the dielectric level of switch reduces.
Further, excitatory tap-changing windings one end ground connection, in order to the oscillation in winding when reducing impact test.
The autotransformer of the constant flux voltage regulation structure that the present invention provides, can realize the connection between two supergrids, uses constant flux voltage regulation mode, will not cause tertiary winding voltage pulsation and iron core overexcitation；Reduce the dielectric level of tap-changing windings simultaneously, reduce manufacture difficulty and the cost of shunting switch.
Accompanying drawing explanation
Fig. 1 is the elementary diagram of the present invention；
In figure, LV, the tertiary winding, MV, public winding, JTV, excitatory tap-changing windings, HV, series connection winding, TV, tap-changing windings, JV, field winding, K, tap changer.
Detailed description of the invention
A kind of constant flux voltage regulation structure of supertension self coupling power transformer, as shown in the figure, including main transformer body and adjustable transformer device body, main transformer body includes connect winding HV, public winding MV, tertiary winding LV and excitatory tap-changing windings JTV, outside excitatory tap-changing windings JTV is independent of series connection winding and public winding MV, but it is enclosed within same iron core with the winding HV that connects, public winding MV.Adjustable transformer device body includes that tap-changing windings TV and field winding, tap-changing windings TV and field winding JV are enclosed within same iron core.Series connection winding HV connects with public winding MV again after connecting with tap-changing windings TV, excitatory tap-changing windings JTV is in parallel with field winding JV, excitatory tap-changing windings JTV is connected with tap changer K, the polarity of tap changer K selects end to be connected with field winding JV head end, the tap exit of tap changer K is connected with the end of field winding JV, connection line middle ground.Winding between A end, X end, as a winding, connects power supply；Public winding between Am end, X end, as Secondary Winding, connects load.The tertiary winding is positioned in main transformer body, is enclosed within same iron core with other windings, decides whether to connect load according to the actually used situation of transformator, in order to suitably provide voltage.
During use, after tap-changing windings regulation puts in place, series connection winding is constant with the voltage of public winding, in excitatory tap-changing windings, the electromotive force of sensing is also steady state value, excitatory tap-changing windings is connected with tap changer, when the gear change of tap changer, it is parallel to the number of turn change of field winding, thus the electromotive force respective change of field winding, the electromotive force of tap-changing windings carries out respective change according to turn ratio simultaneously, owing to tap-changing windings is series between series connection winding and public winding, the tap-changing windings circle electromotive force sealed between series connection winding and public winding changes therewith, and then (Working winding refers to transmission and changes voltage to cause Working winding, the general designation of the winding of transmission electric energy；High tension voltage=series connection winding voltage+public winding voltage+tap-changing windings voltage) change in voltage, the final function realizing regulation voltage.
Claims (3)
1. the constant flux voltage regulation structure of a supertension self coupling power transformer, including main transformer body and adjustable transformer device body, main transformer body includes winding (HV) of connecting, public winding (MV) and the tertiary winding (LV), adjustable transformer device body includes tap-changing windings (TV) and the field winding (JV) being enclosed within same iron core, series connection winding (HV) is connected with public winding (MV) again after connecting with tap-changing windings (TV), it is characterized in that: main transformer body is additionally provided with an excitatory tap-changing windings (JTV), excitatory tap-changing windings (JTV) and winding of connecting (HV), public winding (MV) is enclosed within same iron core, excitatory tap-changing windings (JTV) is in parallel with field winding (JV), excitatory tap-changing windings (JTV) is provided with tap changer (K).
The constant flux voltage regulation structure of supertension self coupling power transformer the most according to claim 1, it is characterized in that: the polarity of tap changer (K) selects end to be connected with field winding (JV) head end, and the tap exit of tap changer (K) is connected with the end of field winding (JV).
The constant flux voltage regulation structure of supertension self coupling power transformer the most according to claim 1, it is characterised in that: excitatory tap-changing windings (JTV) one end ground connection.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410715679.2A CN104361984B (en) | 2014-12-02 | 2014-12-02 | The constant flux voltage regulation structure of supertension self coupling power transformer |
| PCT/CN2015/096086 WO2016086828A1 (en) | 2014-12-02 | 2015-12-01 | Constant magnetic flux voltage regulating structure of ultrahigh voltage self-coupling power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410715679.2A CN104361984B (en) | 2014-12-02 | 2014-12-02 | The constant flux voltage regulation structure of supertension self coupling power transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104361984A CN104361984A (en) | 2015-02-18 |
| CN104361984B true CN104361984B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410715679.2A Active CN104361984B (en) | 2014-12-02 | 2014-12-02 | The constant flux voltage regulation structure of supertension self coupling power transformer |
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| Country | Link |
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| CN (1) | CN104361984B (en) |
| WO (1) | WO2016086828A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104361984B (en) * | 2014-12-02 | 2016-08-24 | 山东电力设备有限公司 | The constant flux voltage regulation structure of supertension self coupling power transformer |
| CN107799285A (en) * | 2017-11-18 | 2018-03-13 | 国家电网公司 | A kind of remote-operated 10kv Intelligent distribution transformers and its method of work |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS593844B2 (en) * | 1979-07-30 | 1984-01-26 | 株式会社日立製作所 | single phase transformer |
| JPS5927088B2 (en) * | 1979-08-09 | 1984-07-03 | 株式会社東芝 | single phase auto transformer |
| JPH01222418A (en) * | 1988-03-02 | 1989-09-05 | Hitachi Ltd | Transformer equipped with voltage adjusting device |
| JP2688067B2 (en) * | 1988-07-11 | 1997-12-08 | 新日本製鐵株式会社 | Tensile strength for electron beam welding 60 ▲ kg ▼ f / ▲ mm2 ▼ class Mo-added steel manufacturing method |
| CN1601668A (en) * | 2004-10-26 | 2005-03-30 | 特变电工沈阳变压器集团有限公司 | Super-large volume loading voltage regulation autotransformer |
| CN101256891B (en) * | 2007-12-28 | 2010-06-02 | 保定天威集团有限公司 | Extra-high voltage single-phase autotransformer |
| CN101651030A (en) * | 2009-08-07 | 2010-02-17 | 中国西电电气股份有限公司 | Autotransformer with low-voltage compensation |
| CN101697312B (en) * | 2009-11-03 | 2011-06-15 | 保定天威集团有限公司 | Low-voltage dual-voltage on-load-tap-changing auto-transformer |
| CN202034213U (en) * | 2010-12-30 | 2011-11-09 | 保定天威集团有限公司 | Auto-coupling and induction on-load voltage-regulating transformer |
| CN203085329U (en) * | 2013-03-04 | 2013-07-24 | :特变电工沈阳变压器集团有限公司 | On-load voltage regulating autotransformer with double apparatus bodies |
| CN204189592U (en) * | 2014-12-02 | 2015-03-04 | 山东电力设备有限公司 | The constant flux voltage regulation structure of superhigh pressure self coupling power transformer |
| CN104361984B (en) * | 2014-12-02 | 2016-08-24 | 山东电力设备有限公司 | The constant flux voltage regulation structure of supertension self coupling power transformer |
-
2014
- 2014-12-02 CN CN201410715679.2A patent/CN104361984B/en active Active
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2015
- 2015-12-01 WO PCT/CN2015/096086 patent/WO2016086828A1/en active Application Filing
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| Publication number | Publication date |
|---|---|
| WO2016086828A1 (en) | 2016-06-09 |
| CN104361984A (en) | 2015-02-18 |
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