CN203536198U - Transformer - Google Patents
Transformer Download PDFInfo
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- CN203536198U CN203536198U CN201320717063.XU CN201320717063U CN203536198U CN 203536198 U CN203536198 U CN 203536198U CN 201320717063 U CN201320717063 U CN 201320717063U CN 203536198 U CN203536198 U CN 203536198U
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- transformer
- voltage regulating
- winding
- load
- switch
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Abstract
The utility model discloses a transformer which comprises a main winding L, N voltage regulating windings L1, L2..., LN and N electronic switches T1, T2..., Tn, wherein the main winding L is serially connected with the N voltage regulating windings L1, L2..., LN, each electronic switch Ti is parallelly connected on the corresponding voltage regulating windings Li, and 1<=i<=n. The transformer is free of arc light in the switching process and high in switching speed, can frequently act, more favorably, can serve as an improvement of a transformer without an on-load voltage regulating function, has the on-load voltage regulating function, and accordingly has a high engineering application value.
Description
Technical field
The utility model relates to a kind of power transformer, is specifically related to a kind of non-contact loaded voltage transformer.
Background technology
The on load tap changer of Domestic Transformers mainly contains two classes at present, a kind of is oil immersed type on load tap changer, be a vacuum dry-type on-load tap changer, switch has the phenomenons such as arc discharge to produce in handoff procedure, therefore the life-span of switch has been produced to very large impact.No matter be on maintenance or number of operations, be all limited by very large.And in present domestic distribution transformer, especially building, the transformer of employing does not still possess load tapchanging dry-type transformer.Cause load when large, low voltage, load hour, voltage is higher, brings to safety in production and life very large constant.
Utility model content
For these shortcomings, the utility model has designed a kind of combination switch that adopts thyristor or thyristor and mechanical switch to be in parallel, means as transformer on-load voltage regulating, by controlling thyristor or combination switch, reach the object Contactless swtich of transformer on-load voltage regulating.
For solving the problems of the technologies described above, the technical solution of the utility model is as follows: a kind of transformer, comprises main winding L, N pressure regulation winding L
1, L
2ln and N electronic switch T
1, T
2tn, wherein, main winding L and N pressure regulation winding L
1, L
2ln connects mutually, and it is upper that each electronic switch Ti is connected in parallel on corresponding pressure regulation winding L i, 1≤i≤n.
Further, described electronic switch is for adopting the thyristor combination switch in parallel with mechanical switch.
Further, described electronic switch is comprised of antiparallel thyristor.
The beneficial effect of technique scheme of the present utility model is as follows:
The utility model handoff procedure is without arc light, and switch speed is fast, can frequent movement, and more favourable person, can be used as a kind of transformation of the transformer that does not possess on-load voltage regulation function, makes it also possess on-load voltage regulation function, therefore has higher engineering using value.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model adopts antiparallel thyristor.
Fig. 2 is the structural representation that the utility model adopts combination switch mode.
Embodiment
Below in conjunction with accompanying drawing, principle of the present utility model and feature are described.
Transformer voltage ratio is the number of turn ratio of primary winding and secondary winding.
Inverse parallel refers to two identical elements, and this head is connected with those tails, this tail is connected with those heads, then place in circuit, is called inverse parallel.
Transformer primary side refers to mains side, and secondary refers to load-side.
As shown in Figure 1, the connected mode of non-contact loaded voltage transformer is that transformer main winding L connects successively with pressure regulation winding L 1, L2......Ln, thyristor electronic switch T1, T2......Tn are comprised of antiparallel thyristor, and T1 is in parallel with L1, and T2 is in parallel with L2 ... Tn is in parallel with Ln.
This structure is used in the former limit situation of transformer:
When transformer puts into operation, T1, T2...Tn is in off state, main winding L, pressure regulation winding L 1, L2...Ln all puts into operation, and now the no-load voltage ratio of transformer is to be in maximum rating, the output voltage of transformer is minimum, if low voltage now, by T1 conducting, pressure regulation winding L 1 is bypassed, the no-load voltage ratio of transformer is lowered, the output voltage of transformer is raised, if now still on the low side, allows T2 conducting, further promote the output voltage of transformer, maximum adjustable progression depend on the number n of pressure regulation winding.When Tn conducting, the no-load voltage ratio of transformer is minimum, and now the output voltage of transformer reaches the highest.
If the output voltage of transformer is too high, can be by turn-offing T1, the mode of T2......Tn operates, until transformer output voltage meets the demands.
This structure is used in the secondary situation of transformer:
When transformer puts into operation, T1, T2......Tn is in off state, main winding L, pressure regulation winding L 1, L2......Ln all puts into operation, and now the no-load voltage ratio of transformer is to be in minimum state, the output voltage of transformer is maximum, if now voltage is higher, by T1 conducting, pressure regulation winding L 1 is bypassed, the no-load voltage ratio of transformer is raised, the output voltage of transformer is lowered, if now still higher, allows T2 conducting, further reduce the output voltage of transformer, maximum adjustable progression depend on the number n of pressure regulation winding.When Tn conducting, the no-load voltage ratio of transformer is maximum, and now the output voltage of transformer reaches minimum.
If the output voltage of transformer is too low, can be by turn-offing T1, the mode of T2...Tn operates, until transformer output voltage meets the demands.
As shown in Figure 2, electronic switch adopts the thyristor combination switch in parallel with mechanical switch.
The above is preferred implementation of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of principle described in the utility model; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (3)
1. a transformer, is characterized in that, comprises main winding L, N pressure regulation winding L
1, L
2ln and N electronic switch T
1, T
2tn, wherein,
Main winding L and N pressure regulation winding L
1, L
2ln connects mutually, and it is upper that each electronic switch Ti is connected in parallel on corresponding pressure regulation winding L i, 1≤i≤n.
2. transformer according to claim 1, is characterized in that, described electronic switch is for adopting the thyristor combination switch in parallel with mechanical switch.
3. transformer according to claim 1, is characterized in that, described electronic switch is comprised of antiparallel thyristor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320717063.XU CN203536198U (en) | 2013-11-14 | 2013-11-14 | Transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320717063.XU CN203536198U (en) | 2013-11-14 | 2013-11-14 | Transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203536198U true CN203536198U (en) | 2014-04-09 |
Family
ID=50422379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320717063.XU Expired - Fee Related CN203536198U (en) | 2013-11-14 | 2013-11-14 | Transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203536198U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105161274A (en) * | 2015-09-30 | 2015-12-16 | 胡群荣 | Transformer on-load voltage regulation method based on thyristor non-arc switch |
| CN110164726A (en) * | 2019-05-24 | 2019-08-23 | 国网河北省电力有限公司沧州供电分公司 | A kind of voltage regulating distribution transformer |
-
2013
- 2013-11-14 CN CN201320717063.XU patent/CN203536198U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105161274A (en) * | 2015-09-30 | 2015-12-16 | 胡群荣 | Transformer on-load voltage regulation method based on thyristor non-arc switch |
| CN110164726A (en) * | 2019-05-24 | 2019-08-23 | 国网河北省电力有限公司沧州供电分公司 | A kind of voltage regulating distribution transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20171114 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |