CN201638667U - Anti-resonant voltage transformer - Google Patents
Anti-resonant voltage transformer Download PDFInfo
- Publication number
- CN201638667U CN201638667U CN2010201516236U CN201020151623U CN201638667U CN 201638667 U CN201638667 U CN 201638667U CN 2010201516236 U CN2010201516236 U CN 2010201516236U CN 201020151623 U CN201020151623 U CN 201020151623U CN 201638667 U CN201638667 U CN 201638667U
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- transformer
- iron core
- voltage transformer
- circles
- turn
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- Coils Or Transformers For Communication (AREA)
Abstract
The utility model discloses an anti-resonant voltage transformer, which comprises a transformer body, an iron core, a primary wire outlet end and a secondary wire outlet end, wherein the transformer body penetrates through a through hole in the middle of the iron core to be connected with the iron core, the turn number of a primary winding on the iron core ranges from 16000 to 20000, and the turn number of a secondary winding ranges from 160 to 200. The anti-resonant voltage transformer is simple in structure, and operational magnetic flux density of the transformer is reduced by increasing the turn numbers of the primary winding and the second winding of the iron core of the voltage transformer so that the transformer is not easy to saturate under a certain stimulating condition, thereby avoiding resonance, preventing resonance of the voltage transformer, and protecting the voltage transformer from being burnt. The operational magnetic flux density of the transformer is reduced to 0.4T from the original 0.8T, thereby achieving obvious effect.
Description
Technical field
The utility model relates to a kind of voltage transformer, and especially a kind of voltage transformer that can prevent resonance belongs to electrical equipment technical field.
Background technology
Voltage transformer is an equipment commonly used in the electric power system, usually and the oscillation circuit of the electric capacity that exists in system composition numerous complicated.In the distribution network of isolated neutral, the work magnetic flux density height of electromagnetic potential transformer, very easily saturated under certain shooting condition, cause ferro-resonance over-voltage, cause the flashover breakdown accident of instrument transformer heating burnout or blast, fuse failure and other electric equipments.For eliminating the generation of resonance phenomena, taked many outside measures both at home and abroad, but most of complex structure, effect is undesirable.
The utility model content
The purpose of this utility model provide a kind of simple in structure, can prevent the voltage transformer that resonance phenomena takes place.
The utility model is achieved by the following technical programs:
A kind of anti-resonant voltage transformer, comprise instrument transformer device body, iron core, leading-out terminal, secondary leading-out terminal, described device was worn the through hole at iron core middle part, and was fixedly connected with it, the number of turn of the last winding of described iron core is greater than 10000 circles, and the number of turn of secondary winding is greater than 100 circles.
The purpose of this utility model can also further realize by following technical measures.
Aforesaid anti-resonant voltage transformer, the number of turn of a wherein said winding are 16000 circles～20000 circles, and the number of turn of described secondary winding is 160 circles～200 circles.
The utility model is simple in structure; by increasing the number of turn of winding of voltage transformer iron core and secondary winding; reduce the work magnetic flux density of instrument transformer; it is saturated that instrument transformer is difficult under certain shooting condition; avoid the generation of resonance phenomena; thereby realize the function of voltage transformer prevention resonance, the protection instrument transformer is not burnt.Work magnetic flux density of the present utility model is reduced to present 0.4T by original 0.8T, and effect is remarkable.
Advantage of the present utility model and characteristics will illustrate by the non-limitative illustration of following preferred embodiment and explain that these embodiment only provide as an example with reference to accompanying drawing.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
As shown in Figure 1, the utility model comprises instrument transformer device body 1, iron core 2, leading-out terminal 3, secondary leading-out terminal 4, and device body 1 passes the through hole at iron core 2 middle parts, and is fixedly connected with it, the number of turn of iron core 2 last windings is 16000 circles～20000 circles, and the number of turn of secondary winding is 160 circles～200 circles; The number of turn of a winding is got 18000 circles in the present embodiment, the number of turn of secondary winding is got 180 circles, after adopting this measure, the work magnetic flux density of voltage transformer is reduced to 0.4T by original 0.8T, instrument transformer is difficult for saturated under certain shooting condition like this, avoid the generation of resonance phenomena, thereby realize the function of voltage transformer prevention resonance, the protection instrument transformer is not burnt; When the number of turn of winding and secondary winding is got 16000 circles, 20000 circles and 160 circles, 200 circles respectively, still can obtain identical technique effect.
In addition to the implementation, the utility model can also have other execution modes, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection range of the utility model requirement.
Claims (2)
1. anti-resonant voltage transformer, comprise instrument transformer device body, iron core, leading-out terminal, secondary leading-out terminal, described device was worn the through hole at iron core middle part, fixedly connected with it, it is characterized in that: the number of turn of the last winding of described iron core is greater than 10000 circles, and the number of turn of secondary winding is greater than 100 circles.
2. anti-resonant voltage transformer as claimed in claim 1 is characterized in that: the number of turn of a described winding is 16000 circles～20000 circles, and the number of turn of described secondary winding is 160 circles～200 circles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201516236U CN201638667U (en) | 2010-04-06 | 2010-04-06 | Anti-resonant voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201516236U CN201638667U (en) | 2010-04-06 | 2010-04-06 | Anti-resonant voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201638667U true CN201638667U (en) | 2010-11-17 |
Family
ID=43083172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201516236U Expired - Fee Related CN201638667U (en) | 2010-04-06 | 2010-04-06 | Anti-resonant voltage transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201638667U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109086562A (en) * | 2018-10-09 | 2018-12-25 | 云南电网有限责任公司红河供电局 | A kind of anti-resonant electromagnetic formula voltage transformer of high-damping and mutual sensing method |
| CN109545529A (en) * | 2018-12-30 | 2019-03-29 | 江西伊发电力科技股份有限公司 | A kind of voltage transformer |
-
2010
- 2010-04-06 CN CN2010201516236U patent/CN201638667U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109086562A (en) * | 2018-10-09 | 2018-12-25 | 云南电网有限责任公司红河供电局 | A kind of anti-resonant electromagnetic formula voltage transformer of high-damping and mutual sensing method |
| CN109086562B (en) * | 2018-10-09 | 2023-09-12 | 云南电网有限责任公司红河供电局 | High-damping anti-resonance electromagnetic voltage transformer and mutual inductance method |
| CN109545529A (en) * | 2018-12-30 | 2019-03-29 | 江西伊发电力科技股份有限公司 | A kind of voltage transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20140406 |