CN204390848U - The false oil level expander for current transformer of a kind of prevention - Google Patents
The false oil level expander for current transformer of a kind of prevention Download PDFInfo
- Publication number
- CN204390848U CN204390848U CN201420719686.5U CN201420719686U CN204390848U CN 204390848 U CN204390848 U CN 204390848U CN 201420719686 U CN201420719686 U CN 201420719686U CN 204390848 U CN204390848 U CN 204390848U
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- CN
- China
- Prior art keywords
- expander
- oil level
- outer cover
- observation window
- false oil
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- 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.)
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- 230000002265 prevention Effects 0.000 title description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
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- Housings And Mounting Of Transformers (AREA)
Abstract
The utility model belongs to instrument transformer technical field, particularly relates to a kind of expander for current transformer.A kind of expander for current transformer preventing false oil level specifically.The outside being included in expander is provided with expander outer cover, is the observation window that the sidewall of expander outer cover is provided with the change of observable oil level; The existing expander of aspect ratio of the outer cover of expander increases 10-20cm, and the existing observation window of aspect ratio of described observation window improves 5-15cm; The inside and outside of described expander outer cover is equipped with one deck anticorrosive coat.The utility model adopts said structure, when instrument transformer generation seepage, time in expander without oil, in the raw, oil level indicating gage is not within the scope of observation window, and nature indicator light keeps bright always for expander, false oil level can not be caused, improve the fail safe of instrument transformer.
Description
Technical field
The utility model belongs to instrument transformer technical field, particularly relates to a kind of expander for current transformer.A kind of expander for current transformer preventing false oil level specifically.
Background technology
The effect of the expander of instrument transformer is when oil temperature raises, and the volume of oil increases, and the volume of expander also increases thereupon, otherwise and reduce, play oil volume compensating action, simultaneously also can avoid contacting with the direct of outside air, make oil not oxidizable, make moist.The change of oil level directly can be seen by the inspection hole of expander, but when instrument transformer is in leakage states, if seepage is serious, without oil in expander, expander inside is full of air, in the raw, oil level indicating gage instruction is still in observation window position, cause false oil level, for preventing the phenomenon of above-mentioned false oil level, a kind of expander for current transformer preventing false oil level of the present utility model.
Summary of the invention
For problems of the prior art, the invention provides the false oil level expander for current transformer of a kind of prevention, its objective is and make expander in its natural state, oil level indicating gage is positioned at the below of observation window, and touching switch, nature indicator light is bright, when instrument transformer generation seepage, time in expander without oil, expander is always lower unchanged in the raw, indicator light is bright for a long time, prevents false oil level phenomenon to occur.
The technical solution adopted for the present invention to solve the technical problems is:
Prevent an expander of mutual inductor for false oil level, the outside being included in expander is provided with expander outer cover; The sidewall of expander outer cover is provided with the observation window of observable oil level change; The existing expander of aspect ratio of the outer cover of expander increases 10-20cm, and the existing observation window of aspect ratio of described observation window 2 improves 5-15cm; The inside and outside of described expander outer cover is equipped with one deck anticorrosive coat.
The size dimension of described expander increases 15cm.
The height of described observation window improves 10cm.
The bottommost of described expander outer cover has base for supporting by Flange joint.
Described described expander outer cover is that flexible stainless steel is made.
The outside of described flange is provided with one deck anticorrosive coat.
The utility model is a kind of expander of mutual inductor preventing false oil level, adopt said structure, when instrument transformer generation seepage, time in expander without oil, in the raw, oil level indicating gage is not within the scope of observation window, and nature indicator light keeps bright always for expander, false oil level can not be caused, improve the fail safe of instrument transformer.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation preventing false oil level expander for current transformer of the present utility model.
In figure: expander outer cover 1, observation window 2, oil level indicating gage 3, expander 4, touching switch 5, nature indicator light 6.
Embodiment
As shown in Figure 1, the utility model is the false oil level expander for current transformer of a kind of prevention, be that the outer cover of expander 4 is provided with expander outer cover 1, the sidewall of expander outer cover 1 be provided with the observation window 2 of observable oil level change, expander oil level indicating gage 3 can be seen by observation window 2.Touching switch 5 and nature indicator light 6 are arranged on expander outer cover 1.
Increase the height of the outer cover 1 of expander 4, make expander 4 increase 10-20cm on the basis of existing size, the height of described observation window 2 also improves 5-15cm accordingly on the basis of existing size.
During concrete enforcement, the size dimension of expander 4 can be increased 15cm on former basis, make the height of observation window 2 improve 10cm on the basis of former height, such height very suitable operation personnel is observed at any time.
When expander 4 in the raw time, oil level indicating gage 3 is positioned at the below of observation window 2, and touch switch, make nature indicator light bright, after instrument transformer is oil-filled, at various temperatures, all pressure-fired is in instrument transformer, make the oil level indicating gage 3 of instrument transformer be positioned at the scope of observation window 2, nature indicator light 6 does not work.
After instrument transformer is oil-filled, at various temperatures, be all in pressure-fired in instrument transformer, make the oil level indicating gage 3 of instrument transformer be positioned at observation window 2 observable scope, nature indicator light does not work.When instrument transformer generation seepage, expander 4 in the raw, touch touching switch 5, oil level indicating gage 3 is not within the scope of observation window 2 observable, and nature indicator light 6 is lighted, if nature indicator light 6 is bright for a long time, instrument transformer generation seepage, false oil level can not be caused, improve the fail safe of instrument transformer.
Embodiment 2:
This practicality is when implementing, base for supporting can also be had by Flange joint at the bottommost of expander outer cover 1, the inside and outside of described expander outer cover 1 is equipped with one deck anticorrosive coat, the outside of flange is also provided with one deck anticorrosive coat, prevents insulating oil from leaking outside and expander is occurred by the phenomenon of oil immersion or corrosion.Described expander outer cover 1 is made for flexible stainless steel.
Claims (6)
1. prevent an expander of mutual inductor for false oil level, the outside being included in expander (4) is provided with expander outer cover (1), it is characterized in that: the observation window (2) being provided with the change of observable oil level on the sidewall of expander outer cover (1); The existing expander of aspect ratio of the outer cover (1) of expander (4) increases 10-20cm, and the existing observation window of aspect ratio of described observation window (2) improves 5-15cm; Described the inside and outside of expander outer cover (1) is equipped with one deck anticorrosive coat.
2. a kind of expander of mutual inductor preventing false oil level according to claim 1, is characterized in that: the size dimension of described expander (4) increases 15cm.
3. a kind of expander of mutual inductor preventing false oil level according to claim 1, is characterized in that: the height of described observation window (2) improves 10cm.
4. a kind of expander of mutual inductor preventing false oil level according to claim 1, is characterized in that: the bottommost of described expander outer cover (1) has base for supporting by Flange joint.
5. a kind of expander of mutual inductor preventing false oil level according to claim 1, is characterized in that: described described expander outer cover (1) is made for flexible stainless steel.
6. a kind of expander of mutual inductor preventing false oil level according to claim 5, is characterized in that: the outside of described flange is provided with one deck anticorrosive coat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420719686.5U CN204390848U (en) | 2014-11-27 | 2014-11-27 | The false oil level expander for current transformer of a kind of prevention |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420719686.5U CN204390848U (en) | 2014-11-27 | 2014-11-27 | The false oil level expander for current transformer of a kind of prevention |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204390848U true CN204390848U (en) | 2015-06-10 |
Family
ID=53363546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420719686.5U Active CN204390848U (en) | 2014-11-27 | 2014-11-27 | The false oil level expander for current transformer of a kind of prevention |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204390848U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107154307A (en) * | 2017-07-06 | 2017-09-12 | 正泰电气股份有限公司 | A kind of current transformer protective cover |
-
2014
- 2014-11-27 CN CN201420719686.5U patent/CN204390848U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107154307A (en) * | 2017-07-06 | 2017-09-12 | 正泰电气股份有限公司 | A kind of current transformer protective cover |
| CN107154307B (en) * | 2017-07-06 | 2019-06-11 | 正泰电气股份有限公司 | A kind of current transformer protective cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |