CN201004369Y - Voltage adjusting transformer - Google Patents
Voltage adjusting transformer Download PDFInfo
- Publication number
- CN201004369Y CN201004369Y CNU2006201649161U CN200620164916U CN201004369Y CN 201004369 Y CN201004369 Y CN 201004369Y CN U2006201649161 U CNU2006201649161 U CN U2006201649161U CN 200620164916 U CN200620164916 U CN 200620164916U CN 201004369 Y CN201004369 Y CN 201004369Y
- Authority
- CN
- China
- Prior art keywords
- winding
- transformer
- excitation
- main transformer
- voltage regulating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Housings And Mounting Of Transformers (AREA)
Abstract
The utility model relates to a powerstat device which is characterized in that: a regulating winding, a field copper and a compensation winding are sleeved on the main post of a powertat device. The utility model is provided with two tap changers and is able to adjust as well as compensate the pressure. The front end of the regulating winding is connected to the rear end of a medium voltage winding in the main transformer by a switch of an exciterless tap changer, the rear end of the regulating winding forms a star point by a moving contact outgoing line of a selector of the exciterless tap changer, the front end of the compensation winding forms the front end of a low-tension winding by the moving contact outgoing line of a selector of the exciterless tap changer, the rear end of the compensation winding is connected to the front end of the low-tension winding of the main transformer by the switch of the exciterless tap changer, the front end of the field copper is connected to the front end of the low-tension winding, the rear end of the field copper is connected to the rear end of the low-tension winding. The utility model solves the problem of the big cubage in the background technique as well as the relatively high cost of the products and which has the advantages of convenient, accurate on-the-spot installation, compact structure, good globality and higher safety.
Description
Technical field
The utility model relates to a kind of transformer, is specifically related to a kind of voltage regulating transformer, can be widely used in special transformer series products such as all kinds of power transformers that are equipped with voltage regulating transformer and convertor transformer, furnace transformer.
Background technology
According to the distribution situation of China's electric power resource, high voltage power network is built in country's sustainable development for a long time, to satisfy the requirement of long distance power transmission.Along with the further growth of national economy, for satisfying power demands, country puts on the planning construction schedule with 1000kV extra-high voltage electric transmission and transformation network.The high side voltage of extra-high voltage auto-transformer is the 1000kV level, and medium voltage side voltage is the 500kV level.If the pressure regulation position of transformer is arranged on traditional series coil end or common winding head end, then insulation level height, the electric current of tap changer, pressure regulation winding and pressure regulation lead-in wire are big, design, very big, the poor safety performance of the difficulty of making.In order to guarantee the reliability of extra-high voltage auto-transformer, the pressure regulation position is arranged on the neutral point of high pressure, middle pressure winding, can realize a side voltage constant of high pressure or middle pressure, opposite side voltage carries out voltage-regulation as requested, and is simple in structure, the reliability height.
Traditional autotransformer neutral point voltage regulating mode is the variable flux voltage regulation mode, the change of tap position can cause the change of magnetic flux density in the main transformer core limb, and corresponding low-pressure side voltage can change thereupon, be the low voltage voltage fluctuation, can cause the transformer impedance fluctuations bigger simultaneously because of pressure regulation produces.If system to the voltage fluctuation of transformer and the requirement for restriction strictness of impedance fluctuations, then needs pressure regulation to match with the voltage regulating transformer of low voltage voltage compensation simultaneously.
The structure of tradition voltage regulating transformer is that voltage regulating transformer is divided into voltage regulating transformer and two separated portions of compensator transformer, a shared shunting switch, though press (or high pressure) side voltage-regulation and low-pressure side voltage compensation in can realizing simultaneously, but material consumption increases, and product cost is higher relatively, volume is bigger.
The utility model content
The purpose of this utility model is to provide a kind of voltage regulating transformer device, and it is bigger that it has solved in the background technology voltage regulating transformer volume, the relative technical problems of high of product cost.
Technical solution of the present utility model is:
A kind of voltage regulating transformer comprises: go up lower yoke 2, be arranged at the interior voltage regulating transformer principal post 3 of lower yoke 2 and the other post 1 of both sides, be set in pressure regulation winding 4 and excitation winding 5 on the voltage regulating transformer principal post 3; Its special character is: it also comprises non-excitation pressure adjustment switch 11, non-excitation pressure adjustment switch 12 and is set in compensation winding 6 on the voltage regulating transformer principal post 3, can realize the adjusting of medium-pressure or high pressure side voltage and the voltage compensation of low-pressure side simultaneously; The head end of described pressure regulation winding 4 joins by the diverter switch and the main transformer of non-excitation pressure adjustment switch 12; The end of described pressure regulation winding 4 joins by the lead-out wire and the main transformer of the selector moving contact of non-excitation pressure adjustment switch 12; The head end of described compensation winding 6 joins by the lead-out wire and the main transformer of the selector moving contact of non-excitation pressure adjustment switch 11; The end of described compensation winding 6 joins by the diverter switch and the main transformer of non-excitation pressure adjustment switch 11; The head end of described excitation winding 5 and end all join by lead-out wire and main transformer.
The integral body of post 1, last lower yoke 2, voltage regulating transformer principal post 3, pressure regulation winding 4, excitation winding 5 and compensation winding 6 can be arranged in the main transformer casing by above-mentioned.Be that the utility model can be total to case with main transformer.In other words, be connected with main transformer is inner.
The integral body of post 1, last lower yoke 2, voltage regulating transformer principal post 3, pressure regulation winding 4, excitation winding 5 and compensation winding 6 also can be arranged in the voltage regulating transformer casing by above-mentioned.Be the utility model also can with separate setting with main transformer, constitute two separate choristas.In other words, be connected with main transformer is outside.
The progression of above-mentioned compensation winding 6 is advisable with corresponding with pressure regulation progression.
The head end of above-mentioned pressure regulation winding 4 joins by the diverter switch and the main transformer of non-excitation pressure adjustment switch 12, and diverter switch and the main transformer of the end of above-mentioned compensation winding 6 by non-excitation pressure adjustment switch 11 join, and specifically all can join with overhead wire or oil-tubing and casing and main transformer.
The head end of above-mentioned pressure regulation winding 4 is by the diverter switch of non-excitation pressure adjustment switch 12, and the end of compensation winding 6 is by the diverter switch of non-excitation pressure adjustment switch 11, all be when joining, above-mentioned other post 1, go up the overall fixed of lower yoke 2, voltage regulating transformer principal post 3, pressure regulation winding 4, excitation winding 5 and compensation winding 6 on the main transformer basic framework with oil-tubing and casing and main transformer.Be that the utility model and main transformer are arranged on the same foundation framework.
The utlity model has following advantage:
1. product with compact structure, volume is little, and it is few to take up space, and saves non-renewable resources such as soil space.
2. material consumption is few, can reduce product cost relatively.
3. in pressure regulation, the voltage of main transformer is compensated, make each side voltage conforms standard-required of main transformer.Along with the raising of main transformer neutral point voltage grade, the voltage of voltage regulating transformer is brought up to 110kV or higher from 0.3kV-35kV, and the voltage regulating transformer of design not only has the pressure regulation effect also to possess compensate function simultaneously.
Main transformer and voltage regulating transformer be connected with dual mode: the one, the inner connection, the common case of voltage regulating transformer and main transformer is applicable to the capacity smaller transformer.The 2nd, the outside connection, voltage regulating transformer separates setting with main transformer, is applicable to transformer capacious, can connect by overhead wire, and is convenient, succinct; Can pass through oil-tubing and casing and connect, product with compact structure, and external disturbance is few, and fail safe is good.
5. adopt two switches of a transformer, compare with switch of two transformer belts of traditional structure, when the high progression of electric pressure increased, material consumption was few, volume is little.
6. the voltage regulating transformer that adopts isolating construction to be provided with can reduce the hauled weight of main transformer, makes the transportation safety, reliable of transformer.
7. the utility model can be connected by oil-tubing and casing with main transformer, and is installed on the public basic framework, can guarantee that the relative altitude of main transformer and modulation meets design requirement.Make assembled in situ convenient, accurate, more compact structure, good integrity, fail safe is higher.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a schematic circuit of the present utility model.
Fig. 3 is the schematic circuit of the utility model embodiment.
The other post of drawing reference numeral explanation: 1-, the last lower yoke of 2-, 3-voltage regulating transformer principal post, 4-pressure regulation winding, the 5-excitation winding, 6-compensates winding; 11-non-excitation pressure adjustment switch, 12-non-excitation pressure adjustment switch, 13-main transformer high pressure winding is pressed winding in the 14-main transformer, 1 5-main transformer low pressure winding, 16-main transformer; A-high pressure winding head end is pressed winding head end, a-low pressure winding head end, X-neutral point, x-low pressure winding end among the Am-.
Embodiment
The utility model adopts the structure of two switches of a transformer to form, and at the electric pressure height, when pressure regulation progression increases, can reduce the voltage fluctuation of transformer, and material consumption is few, volume is little, floor space is little.
The connected mode of the utility model and main transformer: the one, the inner connection, the common case of voltage regulating transformer and main transformer is applicable to the capacity smaller transformer.The 2nd, the outside connection, voltage regulating transformer separates setting with main transformer, constitutes two separate choristas, and main transformer carries out pressure regulation at neutral point.Be applicable to transformer capacious.The voltage regulating transformer that adopts isolating construction to be provided with can reduce the hauled weight of main transformer, makes the transportation safety, reliable of transformer.The utility model is connected by overhead wire with main transformer, and is convenient, succinct.Connect by oil-tubing and casing, good integrity, external disturbance is few, and fail safe is higher; Be arranged on the same foundation framework, can guarantee that the relative altitude of main transformer and modulation meets design requirement, assembled in situ is convenient, accurate, more compact structure.
Referring to Fig. 1, voltage regulating transformer principal post 3 of the present utility model is arranged in the other post 1 of lower yoke 2 and both sides, is set with pressure regulation winding 4, excitation winding 5 and compensation winding 6 on the voltage regulating transformer principal post 3.
Fig. 3 is that the utility model is the schematic circuit of controlled plant with the extra-high voltage auto-transformer.Controlled plant main transformer 16 of the present utility model is by pressing winding 14 and main transformer low pressure winding 15 to constitute in main transformer high pressure winding 13, the main transformer.The middle part lead-out wire of main transformer high pressure winding 13 constitutes high pressure winding head end A, is connected to the high-tension line terminal.During all being connected to, the upper end of main transformer high pressure winding 13, lower end press winding head end Am.
Referring to Fig. 2,3, pressure regulation winding 4 head ends are connected with the diverter switch of non-excitation pressure adjustment switch 12, be connected in the main transformer end of pressing winding 14, constitute the middle pressure winding head end Am of main transformer 16, be connected to the medium-voltage line terminal by the head end lead-out wire of middle pressure winding 14.
The selector moving contact lead-out wire of non-excitation pressure adjustment switch 12 constitutes the neutral point X of main transformer 16, is connected with the neutral point line terminal.
The head end of compensation winding 6 is connected with the diverter switch of non-excitation pressure adjustment switch 11, the selector moving contact lead-out wire of non-excitation pressure adjustment switch 11 constitutes the low pressure winding head end a of main transformer 16, and the end of compensation winding 6 is connected with the head end of main transformer low pressure winding 15 by the diverter switch of non-excitation pressure adjustment switch 11.The terminal lead-out wire of main transformer low pressure winding 15 constitutes the terminal x of low pressure winding.
Capacity was bigger when the utility model was used for the pressure regulation of extra-high voltage auto-transformer, main transformer neutral point voltage grade improves, the voltage of voltage regulating transformer is brought up to 110kV or when higher from 0.3kV-35kV, in order effectively to reduce the voltage and current of switch and pressure regulation part, neutral point variable flux voltage regulation mode is generally adopted in pressure regulation, but this voltage regulating mode can cause the low-pressure side voltage fluctuation.When medium voltage side was minimum tap, interior magnetic flux density unshakable in one's determination increased, and no-load performance can descend.Adopt compensation winding 6, magnetic flux density and the low-pressure side voltage that can effectively control in the main transformer are constant substantially, meet the standard-required of voltage ratio check 0.5%, also can improve impedance fluctuations simultaneously.That is, voltage regulating transformer has compensate function concurrently when possessing the pressure regulation effect.The progression of compensation winding 6 is corresponding with pressure regulation progression.As: ± 4 grades.
The head end of excitation winding 5 is connected to the low-voltage circuit terminal by low pressure winding head end a.The end of excitation winding 5 is connected with the end of main transformer low pressure winding 15.
Claims (6)
1. a voltage regulating transformer comprises: go up lower yoke (2), be arranged at the interior voltage regulating transformer principal post (3) of lower yoke (2) and the other post (1) of both sides, be set in pressure regulation winding (4) and excitation winding (5) on the voltage regulating transformer principal post (3); It is characterized in that it also comprises non-excitation pressure adjustment switch (11), non-excitation pressure adjustment switch (12) and be set in compensation winding (6) on the voltage regulating transformer principal post (3), can realize the adjusting of medium-pressure or high pressure side voltage and the voltage compensation of low-pressure side simultaneously; The head end of described pressure regulation winding (4) joins by the diverter switch and the main transformer of non-excitation pressure adjustment switch (12); The end of described pressure regulation winding (4) joins by the lead-out wire and the main transformer of the selector moving contact of non-excitation pressure adjustment switch (12); The head end of described compensation winding (6) joins by the lead-out wire and the main transformer of the selector moving contact of non-excitation pressure adjustment switch (11); The end of described compensation winding (6) joins by the diverter switch and the main transformer of non-excitation pressure adjustment switch (11); The head end and the end of described excitation winding (5) all join by lead-out wire and main transformer.
2. voltage regulating transformer according to claim 1 is characterized in that: post (1), last lower yoke (2), voltage regulating transformer principal post (3), pressure regulation winding (4), excitation winding (5) and compensation winding (6) is wholy set in the main transformer casing by described.
3. voltage regulating transformer according to claim 1 is characterized in that: post (1), last lower yoke (2), voltage regulating transformer principal post (3), pressure regulation winding (4), excitation winding (5) and compensation winding (6) is wholy set in the voltage regulating transformer casing by described.
4. according to claim 1 or 2 or 3 described voltage regulating transformers, it is characterized in that: the progression of described compensation winding (6) is corresponding with pressure regulation progression.
5. voltage regulating transformer according to claim 4, it is characterized in that: the head end of described pressure regulation winding (4) joins by the diverter switch and the main transformer of non-excitation pressure adjustment switch (12), and diverter switch and the main transformer of the end of described compensation winding (6) by non-excitation pressure adjustment switch (11) join, and all is to join with overhead wire or oil-tubing and casing and main transformer.
6. voltage regulating transformer according to claim 5, it is characterized in that: the head end of described pressure regulation winding (4) is by the diverter switch of non-excitation pressure adjustment switch (12), and the diverter switch of the end of described compensation winding (6) by non-excitation pressure adjustment switch (11) all be when joining with oil-tubing and casing and main transformer, described other post (1), goes up the overall fixed of lower yoke (2), voltage regulating transformer principal post (3), pressure regulation winding (4), excitation winding (5) and compensation winding (6) on the main transformer basic framework.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201649161U CN201004369Y (en) | 2006-12-31 | 2006-12-31 | Voltage adjusting transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201649161U CN201004369Y (en) | 2006-12-31 | 2006-12-31 | Voltage adjusting transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201004369Y true CN201004369Y (en) | 2008-01-09 |
Family
ID=39039913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201649161U Expired - Lifetime CN201004369Y (en) | 2006-12-31 | 2006-12-31 | Voltage adjusting transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201004369Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101697310B (en) * | 2009-11-03 | 2011-06-15 | 保定天威集团有限公司 | Winding connection structure for double-active-part on-load-tap-changing auto-transformer |
| CN102136354A (en) * | 2010-12-16 | 2011-07-27 | 保定天威集团有限公司 | Large-range on-load tap changer (OLTC) for testing |
| RU2479058C2 (en) * | 2008-08-27 | 2013-04-10 | Машиненфабрик Райнхаузен Гмбх | Transformer winding stages switch with semiconductor switching elements |
| CN104934938A (en) * | 2015-06-03 | 2015-09-23 | 南京国电南自电网自动化有限公司 | Transformer voltage regulating switch shift validity check method |
| CN113325209A (en) * | 2020-12-02 | 2021-08-31 | 吴江变压器有限公司 | Design method of temporary sleeve outgoing line for transformer test |
-
2006
- 2006-12-31 CN CNU2006201649161U patent/CN201004369Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2479058C2 (en) * | 2008-08-27 | 2013-04-10 | Машиненфабрик Райнхаузен Гмбх | Transformer winding stages switch with semiconductor switching elements |
| CN101697310B (en) * | 2009-11-03 | 2011-06-15 | 保定天威集团有限公司 | Winding connection structure for double-active-part on-load-tap-changing auto-transformer |
| CN102136354A (en) * | 2010-12-16 | 2011-07-27 | 保定天威集团有限公司 | Large-range on-load tap changer (OLTC) for testing |
| CN102136354B (en) * | 2010-12-16 | 2012-10-24 | 保定天威集团有限公司 | Large-range on-load tap changer (OLTC) for testing |
| CN104934938A (en) * | 2015-06-03 | 2015-09-23 | 南京国电南自电网自动化有限公司 | Transformer voltage regulating switch shift validity check method |
| CN104934938B (en) * | 2015-06-03 | 2017-10-31 | 南京国电南自电网自动化有限公司 | A kind of tap changer of transformer gear validity check method |
| CN113325209A (en) * | 2020-12-02 | 2021-08-31 | 吴江变压器有限公司 | Design method of temporary sleeve outgoing line for transformer test |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201004369Y (en) | Voltage adjusting transformer | |
| CN101651030A (en) | Autotransformer with low-voltage compensation | |
| CN101261896B (en) | A novel superconductive controllable reactor | |
| CN103050260A (en) | 330kV-level three-phase three-winding high-impedance power auto-transformer with function of on-load voltage regulation | |
| CN208478113U (en) | A kind of Multifunction transformer of the double pressure regulation of double high pressures | |
| CN201845649U (en) | Oil-immersed dual-voltage on-load voltage regulating transformer | |
| CN103023347A (en) | Novel on-load-tap-changing combined rectifier auto-transformer with independent ends | |
| CN201562575U (en) | Single-phase traction transformer for high-speed passenger special line | |
| CN201465772U (en) | Structure of T-shaped wiring traction transformer | |
| CN203491694U (en) | Wind field booster system main transformer | |
| CN202150326U (en) | Novel electric stove transformer with compensation terminals | |
| CN203415390U (en) | Voltage-regulating transformer for realizing high-insulation and large-current on-load voltage regulation | |
| CN201174313Y (en) | Extra-high voltage single-phase autotransformer | |
| CN201413766Y (en) | 110kv power transformer with automatic reactive power compensation voltage regulating function | |
| CN108922759B (en) | High-voltage automatic reactive compensation amorphous alloy distribution transformer | |
| CN212032863U (en) | 500kV single-phase on-load tap changing autotransformer with built-in compensation transformer | |
| CN205177585U (en) | Duplex winding multiunit closes single phase transformer of transform | |
| CN203746639U (en) | Line-terminal on-load voltage regulating single-phase 220kV high-impedance transformer | |
| CN103794343B (en) | A kind of line end on-load voltage regulation single-phase 220kV high-impedance transformer | |
| CN203104304U (en) | Novel head and tail two-end independent load self-coupling voltage-adjustment combination rectifying transformer | |
| CN208922885U (en) | A kind of capacity transfer tractive transformer | |
| CN202996565U (en) | 10KV-20KV voltage transformer | |
| CN203552889U (en) | Arranging structure of transformer regulating winding | |
| CN201663044U (en) | Resin casting dry type autotransformer used for reactive power compensation | |
| CN111540592A (en) | 500kV single-phase on-load tap changing autotransformer with built-in compensation transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080109 |
|
| EXPY | Termination of patent right or utility model |