CN203055643U - Three-phase to single-phase transformer - Google Patents
Three-phase to single-phase transformer Download PDFInfo
- Publication number
- CN203055643U CN203055643U CN 201220722814 CN201220722814U CN203055643U CN 203055643 U CN203055643 U CN 203055643U CN 201220722814 CN201220722814 CN 201220722814 CN 201220722814 U CN201220722814 U CN 201220722814U CN 203055643 U CN203055643 U CN 203055643U
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- phase
- secondary side
- transformer
- scott
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Abstract
The utility model discloses a three-phase to single-phase transformer. The three-phase to single-phase transformer is composed of a transformer body jointed by Scott, wherein secondary sides of the transformer body jointed by the Scott are a T variable secondary side and an M variable secondary side, a capacitor is connected with the T variable secondary side in parallel, and the current IT in the T variable secondary side is enabled to be identical with the current IM in the M variable secondary side. The three-phase to single-phase transformer has the advantages that using safety of the transformer can be improved, two single phases output by a three-phase to two-phase transformer can be connected in series to form a single phase to be used, wherein the three-phase to two-phase transformer is jointed by Scott.
Description
Technical field
The utility model relates to the transformer technology field, is specifically related to three-phase alternating-current supply is transformed into the transformer changing from three phases to single phase of single phase alternating current power supply.
Background technology
The supply unit of industrial furnace such as power frequency induction furnace, electroslag remelting furnace is for needing to adopt single-phase jumbo power consumption equipment.At present, generally all be to use common three-phase transformer that single phase alternating current power supply is provided, namely simply the three-phase of three-phase transformer secondary side is connected in series, though every phase current of three-phase transformer primary side equates like this, but A and B phase, the C phase place between mutually is not 120 °, the user easily causes the seriously asymmetric of electrical network three-phase current after using, and power department is unallowed.Present stage, also adopted a kind of three phase transformation two-phase transformers that connect by Scott (Scott) to come the output AC electric current on the market, transformer with Scott (Scott) connection, has the function that three-phase alternating-current supply is transformed into two single phase alternating current power supplies, its secondary side is that T becomes secondary side and M becomes secondary side, because the voltage vector that the voltage vector of T change secondary side and M become secondary side is quadrature each other, both differ 90 °, thereby make the electric current I in the T change secondary side
TWith the electric current I in the M change secondary side
MAlso quadrature each other, both are homophase and differ 90 ° not, thereby T can not be become secondary side and M and become secondary side and directly be connected into single-phase a utilization, uses as forcing, and also will reduce the safety in utilization of transformer.
The utility model content
The purpose of this utility model provide a kind of safety in utilization that can improve transformer, and two single-phase series of the three phase transformation two-phase transformers output that can connect with Scott (Scott) become a single-phase transformer changing from three phases to single phase that uses.
For achieving the above object, the utility model has adopted following technical scheme: described transformer changing from three phases to single phase, constituted by the transformer that connects with Scott, the secondary side of the transformer that Scott connects is that T becomes secondary side and M becomes secondary side, wherein: become the secondary side shunt capacitor at T, make the electric current I in the T change secondary side
TWith the electric current I in the M change secondary side
MHomophase.
Further, aforesaid transformer changing from three phases to single phase, wherein: T is become secondary side and M become the secondary side back of connecting mutually and use.
By the enforcement of technique scheme, the utlity model has the safety in utilization that can improve transformer, and two single-phase series of the three phase transformation two-phase transformers output that can connect with Scott (Scott) become a single-phase advantage of using.
Description of drawings
Fig. 1 is the structural principle schematic diagram of transformer changing from three phases to single phase described in the utility model.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, described transformer changing from three phases to single phase is made of the transformer that connects with Scott, and the secondary side of the transformer that Scott connects is that T becomes secondary side and M becomes secondary side, becomes secondary side shunt capacitor C at T
2, make the electric current I in the T change secondary side
TWith the electric current I in the M change secondary side
MHomophase; Like this, in actual applications, T can be become secondary side and become the directly mutual back use of connecting of secondary side with M.Because T becomes the electric current I in the secondary side
TWith the electric current I in the M change secondary side
MHomophase can not only become T secondary side and M change secondary side like this and be connected into single-phase a utilization, and improve the safety in utilization of transformer.
Claims (2)
1. transformer changing from three phases to single phase is made of the transformer with the Scott connection, and the secondary side of the transformer that Scott connects is that T becomes secondary side and M becomes secondary side, it is characterized in that: become the secondary side shunt capacitor at T, make the electric current I in the T change secondary side
TWith the electric current I in the M change secondary side
MHomophase.
2. transformer changing from three phases to single phase according to claim 1 is characterized in that: use after T is become secondary side and M change secondary side is connected mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220722814 CN203055643U (en) | 2012-12-25 | 2012-12-25 | Three-phase to single-phase transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220722814 CN203055643U (en) | 2012-12-25 | 2012-12-25 | Three-phase to single-phase transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203055643U true CN203055643U (en) | 2013-07-10 |
Family
ID=48738571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220722814 Expired - Fee Related CN203055643U (en) | 2012-12-25 | 2012-12-25 | Three-phase to single-phase transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203055643U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103050262A (en) * | 2012-12-25 | 2013-04-17 | 保定天威集团(江苏)五洲变压器有限公司 | Three-phase to single-phase transformer |
| CN103578716A (en) * | 2013-10-18 | 2014-02-12 | 东莞市光华实业有限公司 | Conjugate high-efficiency transformer for changing three-phase power supply into single-phase power supply |
-
2012
- 2012-12-25 CN CN 201220722814 patent/CN203055643U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103050262A (en) * | 2012-12-25 | 2013-04-17 | 保定天威集团(江苏)五洲变压器有限公司 | Three-phase to single-phase transformer |
| CN103578716A (en) * | 2013-10-18 | 2014-02-12 | 东莞市光华实业有限公司 | Conjugate high-efficiency transformer for changing three-phase power supply into single-phase power supply |
| CN103578716B (en) * | 2013-10-18 | 2016-03-02 | 东莞市光华实业有限公司 | Conjugation-type high-efficiency three-phase becomes single-phase transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 215600 No. 5 Jing Dong Road, Zhangjiagang Economic Development Zone (South District), Suzhou, Jiangsu Patentee after: Jiangsu Wuzhou Electric Power Technology Co., Ltd. Address before: Suzhou City, Jiangsu province 215600 Zhangjiagang Economic Development Zone (yangshe Village Wang) Baoding Print-Rite group (Jiangsu) Co., Ltd. Wuzhou transformer Patentee before: Baoding Tianwei Group (Jiangsu) Wuzhou Transformer Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20201225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |