CN103489728A - High-voltage fuse - Google Patents
High-voltage fuse Download PDFInfo
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- CN103489728A CN103489728A CN201310501871.7A CN201310501871A CN103489728A CN 103489728 A CN103489728 A CN 103489728A CN 201310501871 A CN201310501871 A CN 201310501871A CN 103489728 A CN103489728 A CN 103489728A
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- end cap
- fusion tube
- conduction end
- resistive film
- fusion
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Abstract
The invention relates to a high-voltage fuse. The high-voltage fuse comprises a tubular fusion tube (3) in an insulation tube type, wherein the two ends of the fusion tube (3) are respectively provided with a first conductive end cover (1) and a second conductive end cover (2); a cavity of the fusion tube (3) is internally provided with a fusion body (4) of which the two ends are respectively connected with the first conductive end cover (1) and the second conductive end cover (2); a gap between the fusion body (4) and the inner wall of the fusion tube is filled with an arc extinguishing material (5); the outer surface of the fusion tube (3) is provided with a resistive film (6) of which the two ends are respectively connected with the first conductive end cover (1) and the second conductive end cover (2). The high-voltage fuse is applicable to overall shield installation places and can avoid partial discharge without increasing space distance, and by virtue of the high-voltage fuse, the size of high-voltage electrical equipment can the reduced.
Description
Technical field
The present invention relates to a kind of high-tension fuse, more than being mainly used in 6kV, current limliting and the short-circuit protection of full-shield stube cable and High-Voltage Electrical Appliances in the following electrical power trans mission/distribution system of 35kV, be specially adapted to current limliting and the short-circuit protection of full-shield formula high-voltage electric mutual inductor.
Background technology
High-tension fuse is protection equipment simple and the most commonly used in high-tension line, and it is used for protecting electric equipment to avoid the infringement of overload and short circuit current.Its structure generally comprises the parts such as fusion tube, metal end caps, melt, fills the arc quenching materials such as quartz sand in fusion tube.Modern high tension distribution system is used full-shield electric cable accessories and full-shield High-Voltage Electrical Appliances in a large number, by solid insulation and earth shield technology, greatly reduce the volume of high voltage electric equipment, dwindled installing space, therefore high-tension fuse has also been proposed to be installed on the requirement of full-shield environment.But existing high-tension fuse is due to arc quenching material--there is the large quantity of air air gap in quartz sand, himself and and the inwall of fusion tube between formed a large amount of Air Interface, when outer shielding layer approaches the fusion tube outer wall, its high voltage electric field effect will cause the generation of partial discharge phenomenon, this will cause damage to insulating material, finally cause insulating material breakdown, the formation accident.
Current existing solution is the distance increased between screen and melt, reduce electric field strength by increasing space length, eliminate the condition that partial discharge occurs, but this method has increased the volume and weight of equipment significantly, conflicting with the high voltage electric equipment trend toward miniaturization.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of full-shield that is applicable to that occasion is installed, and do not need to increase space length and just can avoid partial discharge phenomenon, reduces the high-tension fuse of high voltage electric equipment volume
Technical scheme of the present invention is:
A kind of high-tension fuse, the fusion tube that comprises cylindric insulated tube form, the first conduction end cap and the second conduction end cap are equipped with respectively in the two ends of fusion tube, be provided with the melt that two ends are connected with the second conduction end cap with the first conduction end cap respectively in the inner chamber of fusion tube, hole place between melt and fusion tube inwall is filled with arc quenching material, it is characterized in that: the fusion tube outer surface is provided with the resistive film that two ends are connected with the second conduction end cap with the first conduction end cap respectively.
Preferably, the outer surface of fusion tube is covered fully by resistive film, and the resistance value of described resistive film is between 10M Ω to 10G Ω.
Preferably, described resistive film is fixed on the outer wall of fusion tube.
Preferably, the conductive shielding layer that also comprises the outside that is positioned at the first conduction end cap, the second conduction end cap and resistive film; Be provided with insulating material between conductive shielding layer and the first conduction end cap, the second conduction end cap and fusion tube.
Good effect of the present invention is:
The first, when melt does not fuse, two conductions end cap and melts are all in high potential and be equipotential, be connected in the resistive films of two conductions between end cap also with conduction end cap equipotential, between melt and fusion tube inwall, there is no potential difference, there do not is the condition that partial discharge occurs, eliminate the generation of partial discharge phenomenon, be full of dielectric between resistive film, conduction end cap and exterior shield layer simultaneously, also eliminated the condition that partial discharge occurs between fuse and exterior shield layer.
The second, when melt fuses, a conduction end cap is in high potential, another is in electronegative potential, the voltage of each point smoothly reduction from high to low vertically on resistive film, make hot end seamlessly transit to cold end, there is no the electric field catastrophe point, eliminated because melt fusing changes the condition that partial discharge occurs Electric Field Distribution.
Therefore, a kind of high-tension fuse involved in the present invention, efficiently solve the partial discharge problem in the situation that do not increase space length.
The accompanying drawing explanation
Fig. 1 is the structural representation of high-tension fuse of the present invention.
Embodiment
Embodiment mono-
As shown in Figure 1, the present embodiment is a kind of high-tension fuse for the 10kV electric pressure, comprises the first conduction end cap 1, the second conduction end cap 2, fusion tube 3, melt 4, arc quenching material 5, resistive film 6.Fusion tube 3 is a cylindric earthenware, the first conduction end cap 1 and the second conduction end cap 2 are equipped with respectively in two ends, melt 4 is arranged in the inner chamber of fusion tube 3, the two ends of melt 4 are connected with the second conduction end cap 2 with the first conduction end cap 1 respectively, arc quenching material 5 is filled at hole place between melt and fusion tube inwall, and arc quenching material 5 is quartz sand.
Fusion tube 3 outer surfaces all cover resistive film 6, and resistive film 6 two ends are connected with the second conduction end cap 2 with the first conduction end cap 1 respectively.Resistive film 6 covers the outer surface of the fusion tube 3 between the first conduction end cap 1 and the second conduction end cap 2 fully, resistive film be by high-pressure glass glaze resistor manufacture craft sintering on the outer wall of fusion tube, and between the first conduction end cap 1 and the second conduction end cap 2, the resistance of resistive film 6 is 500M Ω.
The first conduction end cap 1 and the second conduction end cap 2 use metal materials are made.
Melt 4 comprises that fuse fixed mount 9 and helical form are around the fine wire on fuse fixed mount 9, and fixed mount 9 is arranged on the middle shaft position of fusion tube 3.
In the present embodiment, conductive shielding layer 7 and insulating material 8 and conductor 10 are from erection unit, and within being not included in high-tension fuse, it closely is connected with the first conduction end cap 1, the second conduction end cap 2, the fusion tube 3 of high-tension fuse.
Embodiment bis-
The present embodiment and embodiment mono-are basic identical, difference is: the outside at the first conduction end cap 1, the second conduction end cap 2, fusion tube 3 also is provided with conductive shielding layer 7, between conductive shielding layer 7 and the first conduction end cap 1, the second conduction end cap 2 and resistive film 6, is provided with insulating material 8.The described high-tension fuse of the present embodiment can be used for installing the occasion that bad border does not provide conductive shielding layer and insulating material, and the conductive shielding layer 7 of high-tension fuse will closely be connected respectively with insulating material with the conductive shielding layer of other electric equipments that are connected with insulating material 8 when mounted.
Embodiment tri-
In the present embodiment, resistive film 6 is fixed on fusion tube 3 outer surfaces with snakelike or spirality pattern part coverage mode.Other parts are with embodiment mono-or embodiment bis-.
Claims (4)
1. a high-tension fuse, the fusion tube (3) that comprises cylindric insulated tube form, the first conduction end cap (1) and the second conduction end cap (2) are equipped with respectively in the two ends of fusion tube (3), be provided with the melt (4) that two ends are connected with the second conduction end cap (2) with the first conduction end cap (1) respectively in the inner chamber of fusion tube (3), hole place between melt (4) and fusion tube inwall is filled with arc quenching material (5), it is characterized in that: fusion tube (3) outer surface is provided with the resistive film (6) that two ends are connected with the second conduction end cap (2) with the first conduction end cap (1) respectively.
2. high-tension fuse as claimed in claim 1, it is characterized in that: the outer surface of fusion tube (3) is covered fully by resistive film (6), and the resistance value of described resistive film (6) is between 10M Ω to 10G Ω.
3. high-tension fuse as claimed in claim 1, it is characterized in that: described resistive film (6) is fixed on the outer wall of fusion tube (3).
4. as claim 1 or 2 or 3 described high-tension fuses, it is characterized in that: the conductive shielding layer (7) that also comprises the outside that is positioned at the first conduction end cap (1), the second conduction end cap (2) and resistive film (6); Be provided with insulating material (8) between conductive shielding layer (7) and the first conduction end cap (1), the second conduction end cap (2) and fusion tube (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310501871.7A CN103489728A (en) | 2013-10-23 | 2013-10-23 | High-voltage fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310501871.7A CN103489728A (en) | 2013-10-23 | 2013-10-23 | High-voltage fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103489728A true CN103489728A (en) | 2014-01-01 |
Family
ID=49829876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310501871.7A Pending CN103489728A (en) | 2013-10-23 | 2013-10-23 | High-voltage fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103489728A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107068510A (en) * | 2016-12-30 | 2017-08-18 | 南京萨特科技发展有限公司 | A kind of compact anti-explosion protector |
| CN109494134A (en) * | 2018-12-29 | 2019-03-19 | 合肥波赛顿光伏水泵有限公司 | A kind of quick-fried molten switch of active/passive |
| CN111933496A (en) * | 2020-06-22 | 2020-11-13 | 南京萨特科技发展有限公司 | Button type fuse and manufacturing method |
| CN113725049A (en) * | 2021-11-02 | 2021-11-30 | 杭州夏树科技有限公司 | Anti-creeping safety device of electric automobile |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0769795A2 (en) * | 1995-10-20 | 1997-04-23 | Efen Elektrotechnische Fabrik GmbH | High-voltage high-power fuse for an electrical connection line |
| EP0833358A2 (en) * | 1996-09-28 | 1998-04-01 | Efen Elektrotechnische Fabrik GmbH | Oil fuse |
| CN201435365Y (en) * | 2009-05-22 | 2010-03-31 | 乐清市曙光熔断器厂 | High-voltage current-limiting fuse cutout |
| CN203481171U (en) * | 2013-10-23 | 2014-03-12 | 烟台东方威思顿电气有限公司 | High voltage fuse |
-
2013
- 2013-10-23 CN CN201310501871.7A patent/CN103489728A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0769795A2 (en) * | 1995-10-20 | 1997-04-23 | Efen Elektrotechnische Fabrik GmbH | High-voltage high-power fuse for an electrical connection line |
| EP0833358A2 (en) * | 1996-09-28 | 1998-04-01 | Efen Elektrotechnische Fabrik GmbH | Oil fuse |
| CN201435365Y (en) * | 2009-05-22 | 2010-03-31 | 乐清市曙光熔断器厂 | High-voltage current-limiting fuse cutout |
| CN203481171U (en) * | 2013-10-23 | 2014-03-12 | 烟台东方威思顿电气有限公司 | High voltage fuse |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107068510A (en) * | 2016-12-30 | 2017-08-18 | 南京萨特科技发展有限公司 | A kind of compact anti-explosion protector |
| CN109494134A (en) * | 2018-12-29 | 2019-03-19 | 合肥波赛顿光伏水泵有限公司 | A kind of quick-fried molten switch of active/passive |
| CN111933496A (en) * | 2020-06-22 | 2020-11-13 | 南京萨特科技发展有限公司 | Button type fuse and manufacturing method |
| CN113725049A (en) * | 2021-11-02 | 2021-11-30 | 杭州夏树科技有限公司 | Anti-creeping safety device of electric automobile |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 264000 Airport Road, Zhifu, Shandong, No. 2, No. Applicant after: Yantai Dongfang Wisdom Electronic Co., Ltd. Address before: 264000 Airport Road, Zhifu, Shandong, No. 2, No. Applicant before: Yantai Dongfang Wisdom Electric Co., Ltd. |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140101 |