CN207781523U - A kind of melt visual type fuse for high-tension apparatus - Google Patents
A kind of melt visual type fuse for high-tension apparatus Download PDFInfo
- Publication number
- CN207781523U CN207781523U CN201820061553.1U CN201820061553U CN207781523U CN 207781523 U CN207781523 U CN 207781523U CN 201820061553 U CN201820061553 U CN 201820061553U CN 207781523 U CN207781523 U CN 207781523U
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- melt
- fuse
- visual type
- circuit
- explosion stack
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Abstract
The utility model discloses a kind of melt visual type fuses for high-tension apparatus, it is characterised in that：Including the interior melt explosion stack for being through at fuse shell, the inner cavity of the melt explosion stack is equipped with melt, and the melt both ends are connect with the conductive contact for being installed on fuse shell both ends respectively.Apparatus overload of this visual type fuse in circuit or circuit or when breaking down, molten part fever and melt, to cut off circuit, achieve the purpose that protection circuit or equipment.
Description
Technical field
The utility model is related to a kind of high-tension fuses, can be widely applied in electric system, can be used for high voltage power transmission
The overload and short-circuit protection of the electrical equipments such as circuit, voltage transformer, voltage transformer.
Background technology
Fuse largely uses in the power system, for protecting electrical equipment against the damage of overload and short circuit current,
High-tension fuse common at present, which is ceramic shell quartz sand arc extinguishing structure, cannot directly observe melt state, exist in quartz sand
Large quantity of air air gap, its own and a large amount of Air Interface is formd between the inner wall of fusion tube, high voltage electric field effect will lead
The generation of partial discharge phenomenon is caused, this will damage insulating materials, and it is breakdown to eventually lead to insulating materials, form accident.
Voltage will be caused to reduce when molten phenomenon slowly occurs in fuse, and be malfunctioned so as to cause protective device, influence power system security
Stable operation.
Utility model content
The purpose of this utility model is against the above deficiency, to provide a kind of melt visual type fusing for high-tension apparatus
Device, apparatus overload of this visual type fuse in circuit or circuit or when breaking down, molten part fever and melt, to cut off
Circuit achievees the purpose that protect circuit or equipment.
In order to realize above-mentioned technical characteristic, what the purpose of this utility model was realized in：One kind being used for high-tension apparatus
Melt visual type fuse, it is characterised in that：Including the interior melt explosion stack for being through at fuse shell, the melt explosion stack
Inner cavity melt is installed, the melt both ends are connect with the conductive contact for being installed on fuse shell both ends respectively.
Sulfur hexafluoride gas is filled inside the melt explosion stack, the sulfur hexafluoride gas, which is realized, extinguishes electric arc.
Gap is vacuum between the fuse shell and melt explosion stack.
The melt explosion stack, fuse shell are transparent glass tube.
The utility model has the advantages that：
1, when in circuit or circuit apparatus overload or when breaking down, molten part fever and melt, to cut off circuit, reach
To protection circuit or the purpose of equipment.Slowly molten phenomenon occurs for fuse, when molten part is not completely melt, can observe by the naked eye and
Shi Faxian.
2, it can in time be scented a hidden danger by observing whether fuse has molten phenomenon slowly.
3, using sulfur hexafluoride gas arc extinguishing, and fuse weight can effectively be mitigated.
Description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the sectional view of the utility model.
In figure：Conductive contact 1, fuse shell 2, melt explosion stack 3, melt 4.
Specific implementation mode
The embodiment of the utility model is described further below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of melt visual type fuse for high-tension apparatus, it is characterised in that：Including it is interior be through at it is molten
The melt explosion stack 3 of disconnected device shell 2, the inner cavity of the melt explosion stack 3 are equipped with melt 4,4 both ends of the melt respectively with peace
Conductive contact 1 loaded on 2 both ends of fuse shell connects.It is defeated to can be used for high pressure by using above-mentioned melt visual type fuse
The overload and short-circuit protection of the electrical equipments such as electric line, voltage transformer, voltage transformer.When the equipment mistake in circuit or circuit
When carrying or breaking down, molten part generates heat and melts, and to cut off circuit, achievees the purpose that protect circuit or equipment.Fuse is sent out
Raw phenomenon molten slowly can observe by the naked eye timely discovery when molten part is not completely melt.
Further, sulfur hexafluoride gas is filled in 3 inside of the melt explosion stack, and the sulfur hexafluoride gas, which is realized, to be extinguished
Electric arc.
Further, gap is vacuum between the fuse shell 2 and melt explosion stack 3.
Further, the melt explosion stack 3, fuse shell 2 are transparent glass tube, and internal arc-extinguishing medium is colourless
Sulfur hexafluoride gas can realize 4 naked eyes of inner melt as it can be seen that find fuse internal state in time.
Utility model works process and principle：
Power circuit, when high tension loop works normally, high-tension fuse energy are accessed by this utility model conductive contact 1
Keep circuit normally unimpeded；Work as current overload, melt 4 is because high current fuses rapidly cut-off loop, while it is explosion-proof to be filled in melt
Sulfur hexafluoride gas inside pipe 3 extinguishes rapidly electric arc, and it is without damage to play protection other devices.Simultaneously as high-voltage fuse
Device when slowly molten phenomenon occurs under factors for electric leakage etc., can by 4 state of direct visual perception melt, timely discovering device defect,
Improve stability of power system.
Above-described embodiment is used for illustrating the utility model, rather than limits the utility model, in this practicality
In novel spirit and scope of the claims, to any modifications and changes that the utility model is made, this reality is both fallen within
With novel protection domain.
Claims (4)
1. a kind of melt visual type fuse for high-tension apparatus, it is characterised in that：It is through at fuse shell including interior（2）'s
Melt explosion stack（3）, the melt explosion stack（3）Inner cavity melt is installed（4）, the melt（4）Both ends respectively with installation
In fuse shell（2）The conductive contact at both ends（1）Connection.
2. a kind of melt visual type fuse for high-tension apparatus according to claim 1, it is characterised in that：It is described molten
Body explosion stack（3）Inside filling sulfur hexafluoride gas, the sulfur hexafluoride gas, which is realized, extinguishes electric arc.
3. a kind of melt visual type fuse for high-tension apparatus according to claim 1, it is characterised in that：It is described molten
Disconnected device shell（2）With melt explosion stack（3）Between gap be vacuum.
4. a kind of melt visual type fuse for high-tension apparatus according to claim 1, it is characterised in that：It is described molten
Body explosion stack（3）, fuse shell（2）It is transparent glass tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820061553.1U CN207781523U (en) | 2018-01-15 | 2018-01-15 | A kind of melt visual type fuse for high-tension apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820061553.1U CN207781523U (en) | 2018-01-15 | 2018-01-15 | A kind of melt visual type fuse for high-tension apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207781523U true CN207781523U (en) | 2018-08-28 |
Family
ID=63212801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820061553.1U Active CN207781523U (en) | 2018-01-15 | 2018-01-15 | A kind of melt visual type fuse for high-tension apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207781523U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113314390A (en) * | 2021-05-31 | 2021-08-27 | 广东电网有限责任公司 | PT (potential Transformer) three-time safety device |
-
2018
- 2018-01-15 CN CN201820061553.1U patent/CN207781523U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113314390A (en) * | 2021-05-31 | 2021-08-27 | 广东电网有限责任公司 | PT (potential Transformer) three-time safety device |
| CN113314390B (en) * | 2021-05-31 | 2022-11-01 | 广东电网有限责任公司 | Tertiary safety device of voltage transformer |
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| GR01 | Patent grant |