CN102347130A - Built-in expander - Google Patents
Built-in expander Download PDFInfo
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- CN102347130A CN102347130A CN2011102046576A CN201110204657A CN102347130A CN 102347130 A CN102347130 A CN 102347130A CN 2011102046576 A CN2011102046576 A CN 2011102046576A CN 201110204657 A CN201110204657 A CN 201110204657A CN 102347130 A CN102347130 A CN 102347130A
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- expander
- voltage divider
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Abstract
The invention discloses a built-in expander, which is applied to a capacitive voltage divider. The built-in expander comprises a plurality of independent parallel expander sheets, wherein the expander sheets are connected in series into a whole by the outgoing line of a voltage divider core; the expander sheets are welded to the outgoing line; and a gap is arranged between two adjacent expander sheets. In the built-in expander, the number of the welded expander sheets can be correspondingly changed to regulate the length of the expander according to the size of the internal space of the voltage divider, the size of a porcelain sleeve and the length of the voltage divider core, and therefore the built-in expander can adapt to the requirements of voltage divider sleeves of different lengths.
Description
Technical field
The present invention relates to a kind of protective device that is used for the voltage divider safe operation, especially relate to a kind of built-in expander.
Background technology
Voltage divider is the equipment of a kind of voltage of transformation commonly used in the electric power system; In order to guarantee the safe operation of voltage divider; Just injected a certain amount of insulating oil in the inside of voltage divider; Insulating oil is also claimed oil for electrical appliances; Comprise transformer oil, circuit-breaker oil, capacitor oil and cable wet goods; Be insulation as the electric equipment heat-conducting medium of holding concurrently, play the effect of insulation and cooling; But the inner insulating oil of voltage divider can change volume with variation of temperature, so, will cause the internal pressure of voltage divider to change, thereby influences the safe operation of voltage divider; In order to compensate the change in volume that insulating oil takes place because of variations in temperature, keep the voltage divider internal pressure constant basically, guarantee the safe operation of voltage divider, voltage divider generally all adopts built-in expander as the cubage compensation seal protecting device.
At present; Though the kind of the built-in expander that exists on the market is a lot; But structure size and shape that it is whole are all fixed; Can not be according to the size of voltage divider volume inside; And the size of porcelain bushing and voltage divider fuse length; The length of flexible expander is to cooperate corresponding voltage divider.
Summary of the invention
To above-mentioned technical problem, the object of the present invention is to provide a kind of built-in expander, it can adjust the length of expander flexibly according to the size of voltage divider inner space and the size of porcelain bushing and voltage divider fuse length.
The objective of the invention is to realize through following technical scheme:
A kind of built-in expander, it comprises the expander sheet that several independent parallel are provided with, said expander sheet is one through the connector serial connection.
Especially, said connector is the lead-out wire of voltage divider fuse, and said expander sheet is welded on the lead-out wire.
Especially, be provided with the gap between said adjacent two expander sheets.
Beneficial effect of the present invention does; Said built-in expander by several independently the expander sheet form; And weld together through the lead-out wire of voltage divider fuse; Than traditional expander; It can be according to the size of voltage divider inner space and the size of porcelain bushing and voltage divider fuse length; The corresponding number that changes welding expander sheet is adjusted the length of expander, thereby adapts to the demand of the voltage divider sleeve pipe of different length.
Description of drawings
With embodiment the present invention is done further explain with reference to the accompanying drawings below.
Fig. 1 is the structural representation of the built-in expander of the present invention.
Among the figure:
1, expander sheet; 2, gap; 3, voltage divider fuse lead-out wire.
Embodiment
Please with reference to shown in Figure 1, Fig. 1 is the structural representation of the built-in expander of the present invention.In present embodiment, said built-in expander comprises the expander sheet 1 that a plurality of independent parallel are provided with, and said expander sheet 1 is serially connected through being welded on the voltage divider fuse lead-out wire 3, is provided with gap 2 between said two adjacent expander sheets 1.
Above-mentioned built-in expander can be according to the size of voltage divider inner space and the size of porcelain bushing and voltage divider fuse length, and the corresponding number that changes welding expander sheet 1 is adjusted the length of expander, thereby adapts to the demand of the voltage divider sleeve pipe of different length.
Claims (3)
1. built-in expander is characterized in that: it comprises the expander sheet that several independent parallel are provided with, and said expander sheet is one through the connector serial connection.
2. built-in expander according to claim 1; It is characterized in that: said connector is the lead-out wire of voltage divider fuse, and said expander sheet is welded on the lead-out wire.
3. according to claim 1 or 2 each described built-in expanders; It is characterized in that: be provided with the gap between said adjacent two expander sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102046576A CN102347130A (en) | 2011-07-21 | 2011-07-21 | Built-in expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102046576A CN102347130A (en) | 2011-07-21 | 2011-07-21 | Built-in expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102347130A true CN102347130A (en) | 2012-02-08 |
Family
ID=45545715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102046576A Pending CN102347130A (en) | 2011-07-21 | 2011-07-21 | Built-in expander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102347130A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2289287Y (en) * | 1997-03-14 | 1998-08-26 | 宋魁昌 | Metal box type expander and oil conservator |
| CN201262874Y (en) * | 2008-09-27 | 2009-06-24 | 于洪涛 | Vertical oil conservater for transformer external oil |
| CN201449842U (en) * | 2009-08-18 | 2010-05-05 | 特变电工康嘉(沈阳)互感器有限责任公司 | Simply-installed type metal expander |
| CN201616319U (en) * | 2010-02-10 | 2010-10-27 | 沈阳海为电力设备有限公司 | Metal corrugated expansion oil storage cabinet |
| CN201741533U (en) * | 2010-07-23 | 2011-02-09 | 姜天文 | Hydrogen-free metal corrugated expander |
| CN201877252U (en) * | 2010-12-06 | 2011-06-22 | 保定天威集团有限公司 | Corrugated expander |
| CN202159576U (en) * | 2011-07-21 | 2012-03-07 | 无锡市锡容电力电器有限公司 | Built-in expander |
-
2011
- 2011-07-21 CN CN2011102046576A patent/CN102347130A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2289287Y (en) * | 1997-03-14 | 1998-08-26 | 宋魁昌 | Metal box type expander and oil conservator |
| CN201262874Y (en) * | 2008-09-27 | 2009-06-24 | 于洪涛 | Vertical oil conservater for transformer external oil |
| CN201449842U (en) * | 2009-08-18 | 2010-05-05 | 特变电工康嘉(沈阳)互感器有限责任公司 | Simply-installed type metal expander |
| CN201616319U (en) * | 2010-02-10 | 2010-10-27 | 沈阳海为电力设备有限公司 | Metal corrugated expansion oil storage cabinet |
| CN201741533U (en) * | 2010-07-23 | 2011-02-09 | 姜天文 | Hydrogen-free metal corrugated expander |
| CN201877252U (en) * | 2010-12-06 | 2011-06-22 | 保定天威集团有限公司 | Corrugated expander |
| CN202159576U (en) * | 2011-07-21 | 2012-03-07 | 无锡市锡容电力电器有限公司 | Built-in expander |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120208 |