CN2419736Y - Current varying transformer - Google Patents
Current varying transformer Download PDFInfo
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- CN2419736Y CN2419736Y CN 00206374 CN00206374U CN2419736Y CN 2419736 Y CN2419736 Y CN 2419736Y CN 00206374 CN00206374 CN 00206374 CN 00206374 U CN00206374 U CN 00206374U CN 2419736 Y CN2419736 Y CN 2419736Y
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Abstract
The utility model relates to a current varying transformer which is composed of two current varying transformers, the high-voltage net sides of which are respectively provided with main coils which are connected into triangles, wherein the main coils of one current varying transformer are connected into positive direction triangles and are connected into outwards extending triangles with phase shifting coils of the current varying transformer; the main coils of the other current varying transformer are connected into negative direction triangles and are connected into outwards extending triangles with phase shifting coils of the current varying transformer. According to the structure, one current varying transformer can shift phase by +7.5, and the other current varying transformer can shift phase by-7.5. When the two current varying transformers are simultaneously connected with a group of rectifying bridges to do parallel operation, 24 pulse wave rectification is formed. Through calculation, compared with the existing 12 pulse wave current varying transformer, the 24 pulse wave current varying transformer of the utility model has the advantage that 11-time and 13-time harmonic components with much content in a characteristic harmonic wave of current in an electric network are greatly reduced.
Description
The utility model relates to can provide the convertor transformer of many pulse waves direct current by being connected in rectification circuit on the low pressure valve lateral coil to load.
Need provide the occasion of direct current to use convertor transformer such as subway etc. more.Convertor transformer when electrical network absorbs active power and reactive power, also injects harmonic current to electrical network when operation, electric power system and communication line etc. is certainly led to harmful effect.Therefore, unsteady flow must be according to the regulation of national standard, take effectively to suppress and the measure of harmonic carcellation, and the equivalent pulse number that increases convertor equipment be one of most effectual way of inhibition harmonic wave.
Existing 12 pulse wave convertor transformers have the low pressure valve lateral coil of two axial splits, and one of them is connected into star, and another is connected into triangle, and have and be connected into leg-of-mutton High-Voltage Network lateral coil as shown in Figure 4.Therefore, have harmonic wave inhibitory action preferably, particularly some harmonic component is had good inhibition effect.But, exist shortcoming such as the inhibition ability of 11 times and 13 order harmonic components is relatively poor.
For this reason, the purpose of this utility model provides and has the inhibiting many pulse waves convertor transformer of better harmonic wave.
For achieving the above object, the said convertor transformer of the utility model claim 1 has the convertor transformer that is connected into leg-of-mutton main coil separately by two High-Voltage Network sides and constitutes, wherein the main coil of a convertor transformer is connected into positive triangle and is connected into lengthened triangular with its phase shift coil, and the main coil of another convertor transformer is connected into reverse triangle and is connected into lengthened triangular with its phase shift coil.
According to this configuration, but convertor transformer phase shift+7.5, but another phase shift-7.5, shown in the polar plot of Fig. 2.When two convertor transformers connect one group of rectifier bridge parallel running simultaneously, can form 24 pulse wave rectifiers, thereby reach the purpose that suppresses the mains by harmonics electric current.By calculating as can be known, the utility model 24 pulse wave convertor transformers are compared with existing 12 pulse wave convertor transformers, and content more 11 times, 13 order harmonic components significantly reduce in the power network current characteristic harmonics.
The said convertor transformer of the convertor transformer of the utility model claim 2 such as claim 1 is characterized in that, said phase shift coil is with respect to the main coil arranged radially.
According to this configuration, can make ampere-turn equilibrium and reduce the additional load loss, improve the impact load tolerance performance of convertor transformer.
Fig. 1 is the winding diagram of the utility model convertor transformer High-Voltage Network lateral coil.
Fig. 2 is the polar plot of the utility model convertor transformer.
Fig. 3 is the coil arrangement schematic diagram of the utility model convertor transformer.
Fig. 4 is the winding diagram of existing 12 pulse wave convertor transformer High-Voltage Network lateral coils.
Below, in conjunction with the accompanying drawings the utility model convertor transformer is described in further detail.
As shown in Figure 1, the utility model convertor transformer has the convertor transformer 1T and the 2T that are connected into leg-of-mutton High-Voltage Network lateral coil by two and constitutes.
Among the convertor transformer 1T wherein, it is said that to be connected into leg-of-mutton High-Voltage Network lateral coil be main coil 1AZ, 1BZ, the 1CZ that is connected into so-called positive triangle, in addition, the High-Voltage Network lateral coil also comprises phase shift coil 1AY, 1BY, the 1CY that connects into the lengthened triangular structure with said main coil 1AZ, 1BZ, the 1CZ that is connected into positive triangle, promptly
The end of the top of A phase main coil 1AZ and B phase main coil 1BZ is connected and is connected with the end of A phase shift phase coil 1AY, the end of the top of B phase main coil 1BZ and C phase main coil 1CZ is connected and is connected with the end of B phase shift phase coil 1BY, and the end of the top of C phase main coil 1CZ and A phase main coil 1AZ is connected and is connected with the end of C phase shift phase coil 1CY;
And among another transformer 2T, it is said that to be connected into leg-of-mutton High-Voltage Network lateral coil be to be connected into so-called reverse leg-of-mutton main coil 2AZ, 2BZ, 2CZ, in addition, the High-Voltage Network lateral coil also comprises with said and is connected into phase shift coil 2AY, 2BY, the 2CY that reverse leg-of-mutton main coil 2AZ, 2BZ, 2CZ connect into the lengthened triangular structure, promptly
The end of the top of A phase main coil 2AZ and C phase main coil 2CZ is connected and is connected with the end of A phase shift phase coil 2AY, the end of the top of B phase main coil 2BZ and A phase main coil 2AZ is connected and is connected with the end of B phase shift phase coil 2BY, and the end of the top of C phase main coil 2CZ and B phase main coil 2BZ is connected and is connected with the end of C phase shift phase coil 2CY.
About the arrangement mode of coil, the phase shift coil both can axially-aligned with respect to main coil also can arranged radially, but, be advisable to adopt the arranged radially mode, as shown in Figure 3 from improving consideration such as impact load tolerance performance.Among Fig. 3, the situation of the A phase shift phase coil 1AY of a convertor transformer 1T with respect to its main coil 1AZ arranged radially only is shown, other phase shift coil that reaches another each phase of convertor transformer mutually can be by that analogy with respect to the arrangement situation of corresponding main coil.That is, the phase shift coil 1AY of the utility model convertor transformer, 1BY, 1CY are respectively with respect to said main coil 1AZ, 1BZ, 1CZ arranged radially, and said phase shift coil 2AY, 2BY, 2CY are with respect to said main coil 2AZ, 2BZ, 2CZ arranged radially.
Claims (2)
1. convertor transformer has and is connected into leg-of-mutton High-Voltage Network lateral coil, it is characterized in that having the convertor transformer (1T), (2T) that are connected into leg-of-mutton High-Voltage Network lateral coil separately by two and constitute; In the convertor transformer (1T) wherein,
It is said that to be connected into leg-of-mutton High-Voltage Network lateral coil be main coil (1AZ), (1BZ), (1CZ) that is connected into positive triangle, in addition, the High-Voltage Network lateral coil also comprises phase shift coil (1AY), (1BY), (1CY) that connects into the lengthened triangular structure with said main coil (1AZ), (1BZ), (1CZ) that is connected into positive triangle, promptly
The end of the top of A phase main coil (1AZ) and B phase main coil (1BZ) is connected and is connected with the end of A phase shift phase coil (1AY),
The end of the top of B phase main coil (1BZ) and C phase main coil (1CZ) is connected and is connected with the end of B phase shift phase coil (1BY),
The end of the top of C phase main coil (1CZ) and A phase main coil (1AZ) is connected and is connected with the end of C phase shift phase coil (1CY);
And in another transformer (2T),
It is said that to be connected into leg-of-mutton High-Voltage Network lateral coil be to be connected into reverse leg-of-mutton main coil (2AZ), (2BZ), (2CZ), in addition, the High-Voltage Network lateral coil also comprises with said and is connected into phase shift coil (2AY), (2BY), (2CY) that reverse leg-of-mutton main coil (2AZ), (2BZ), (2CZ) connect into the lengthened triangular structure, promptly
The end of the top of A phase main coil (2AZ) and C phase main coil (2CZ) is connected and is connected with the end of A phase shift phase coil (2AY),
The end of the top of B phase main coil (2BZ) and A phase main coil (2AZ) is connected and is connected with the end of B phase shift phase coil (2BY)
The end of the top of C phase main coil (2CZ) and B phase main coil (2BZ) is connected and is connected with the end of C phase shift phase coil (2CY).
2. as the said convertor transformer of claim 1, it is characterized in that, said phase shift coil (1AY), (1BY), (1CY) are respectively with respect to said main coil (1AZ), (1BZ), (1CZ) arranged radially, and said phase shift coil (2AY), (2BY), (2CY) are with respect to said main coil (2AZ), (2BZ), (2CZ) arranged radially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00206374 CN2419736Y (en) | 2000-03-17 | 2000-03-17 | Current varying transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00206374 CN2419736Y (en) | 2000-03-17 | 2000-03-17 | Current varying transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2419736Y true CN2419736Y (en) | 2001-02-14 |
Family
ID=33574329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00206374 Expired - Fee Related CN2419736Y (en) | 2000-03-17 | 2000-03-17 | Current varying transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2419736Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100492832C (en) * | 2004-06-04 | 2009-05-27 | 瓦尔茨雷挪威公司 | Propulsion power system |
| CN104538964A (en) * | 2014-12-01 | 2015-04-22 | 国家电网公司 | Harmonic suppression device based on epitaxy delta controllable reactor connection |
| CN109448974A (en) * | 2018-09-20 | 2019-03-08 | 湖南大学 | A kind of integrated rectifier transformer of 24 pulse wave magnetic using the arrangement of alternating expression winding |
-
2000
- 2000-03-17 CN CN 00206374 patent/CN2419736Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100492832C (en) * | 2004-06-04 | 2009-05-27 | 瓦尔茨雷挪威公司 | Propulsion power system |
| CN104538964A (en) * | 2014-12-01 | 2015-04-22 | 国家电网公司 | Harmonic suppression device based on epitaxy delta controllable reactor connection |
| CN109448974A (en) * | 2018-09-20 | 2019-03-08 | 湖南大学 | A kind of integrated rectifier transformer of 24 pulse wave magnetic using the arrangement of alternating expression winding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Beijng Transformer Plant Document name: Notice of termination |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |