CN2526966Y - Drop-off type current-limiting fusing load switch - Google Patents
Drop-off type current-limiting fusing load switch Download PDFInfo
- Publication number
- CN2526966Y CN2526966Y CN 02211361 CN02211361U CN2526966Y CN 2526966 Y CN2526966 Y CN 2526966Y CN 02211361 CN02211361 CN 02211361 CN 02211361 U CN02211361 U CN 02211361U CN 2526966 Y CN2526966 Y CN 2526966Y
- Authority
- CN
- China
- Prior art keywords
- insulator
- melt pipe
- assembly
- load switch
- drop
- Prior art date
- 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.)
- Expired - Fee Related
Links
- 239000012212 insulator Substances 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 229910052573 porcelain Inorganic materials 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Fuses (AREA)
Abstract
The invented load switch is suitable for short-circuit protection and load protection of transmission line and transformer, and integrates various advantages and functions of RW series drop-out fuse, current-limiting fuse and load switch. The fuse tube is arranged in the porcelain bushing, which is a revolutionary leap in structural performance and is a renewal product for replacing a drop-out fuse.
Description
The utility model relates to a kind of fuse, especially separation-type current limliting fusing on-load switch.
At present, the RW of extensive use series fuse switch is the short-circuit protection and the load protection of transmission line and transformer, is made up of melt pipe, upper end turning joint, lower end turning joint, insulator, mounting bracket.Because its structural defective makes the contact contact point of melt pipe and upper end turning joint, lower end turning joint be exposed to the outside, cause dust, sleet etc. to corrode arbitrarily, cause properties of product obviously to reduce, the lost of life.
The purpose of this utility model is: a kind of separation-type current limliting fusing on-load switch is provided, melt pipe is installed in the insulator, make melt pipe up and down contact point be protected, obviously improved properties of product and life-span.
The purpose of this utility model is achieved in that insulator is hollow, insulator assembly upper end closed, insulator assembly lower ending opening.Melt pipe is installed in the insulator from the insulator lower ending opening; make the contact point of melt pipe upper end contact and upper end extinguishing arc conductive plate assembly; and the contact point of melt pipe lower end contact and lower end extinguishing arc conductive plate assembly; be subjected to the protection of insulator; avoided the erosion of dust, sleet; played simultaneously the effect of on-load switch again, its properties of product have obviously been improved, and prolonged useful life.
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is external form figure of the present utility model (dotted portion is the position of melt pipe when coming off).
Fig. 2 is a profile of the present utility model.
Fig. 3 is the profile of melt pipe.
Fig. 4 is the insulator profile.
In Fig. 1,2,1, melt pipe 2, melt pipe upper end contact assembly 3, melt pipe lower end contact assembly 4, insulator assembly 5, insulator upper end extinguishing arc conductive plate assembly 6, insulator lower end extinguishing arc conductive plate assembly 7, mounting bracket
In Fig. 2, melt pipe (1), lower ending opening from insulator assembly (4), be installed in the insulator assembly (4), melt pipe upper end contact assembly (2) is contacted with insulator upper end extinguishing arc conductive plate assembly (5), melt pipe lower end contact assembly (3) contacts with insulator lower end extinguishing arc conductive plate assembly (6) and forms the loop, when melt pipe (1) internal fuse fuses, melt pipe (1) lower end contact assembly (3) rotation, melt pipe (1) is come off downwards, because melt pipe (1) upper end contact assembly (2), the place is stuck at insulator assembly lower ending opening, and melt pipe (1) can not be deviate from fully, just cut off circuit, must be manually with melt pipe (1) rotation extraction.
Principle is the same in Fig. 1, and dotted portion is melt pipe (1) position when deviating from.
We have made a sample, external form such as Fig. 1, and profile such as Fig. 2, through on probation very reliable, performance obviously improves, and can increase the service life greatly.
Claims (2)
1, separation-type current limliting fusing on-load switch, by melt pipe, melt pipe upper end contact assembly, melt pipe lower end contact assembly, insulator assembly, insulator upper end extinguishing arc conductive plate assembly, insulator lower end extinguishing arc conductive plate assembly, mounting bracket are formed, and it is characterized in that: melt pipe is installed in the insulator.
2, switch according to claim 1 is characterized in that: insulator assembly upper end closed, insulator assembly lower ending opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02211361 CN2526966Y (en) | 2002-02-22 | 2002-02-22 | Drop-off type current-limiting fusing load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02211361 CN2526966Y (en) | 2002-02-22 | 2002-02-22 | Drop-off type current-limiting fusing load switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2526966Y true CN2526966Y (en) | 2002-12-18 |
Family
ID=33691285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02211361 Expired - Fee Related CN2526966Y (en) | 2002-02-22 | 2002-02-22 | Drop-off type current-limiting fusing load switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2526966Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100454469C (en) * | 2006-12-28 | 2009-01-21 | 王芹 | Falling fuse |
| CN102568972A (en) * | 2010-12-15 | 2012-07-11 | 河南省电力公司三门峡供电公司 | Drop fuse |
-
2002
- 2002-02-22 CN CN 02211361 patent/CN2526966Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100454469C (en) * | 2006-12-28 | 2009-01-21 | 王芹 | Falling fuse |
| CN102568972A (en) * | 2010-12-15 | 2012-07-11 | 河南省电力公司三门峡供电公司 | Drop fuse |
| CN102568972B (en) * | 2010-12-15 | 2014-11-12 | 国家电网公司 | Drop fuse |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Sun Zutong Document name: payment instructions |
|
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Sun Zutong Document name: Notification of Termination of Patent Right |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |