CN109581146B - Method for detecting interchangeability of fuse carrier of drop-out fuse - Google Patents
Method for detecting interchangeability of fuse carrier of drop-out fuse Download PDFInfo
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- CN109581146B CN109581146B CN201811437253.XA CN201811437253A CN109581146B CN 109581146 B CN109581146 B CN 109581146B CN 201811437253 A CN201811437253 A CN 201811437253A CN 109581146 B CN109581146 B CN 109581146B
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000004088 simulation Methods 0.000 claims abstract description 26
- 239000000969 carrier Substances 0.000 claims abstract description 11
- 238000009826 distribution Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/74—Testing of fuses
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- General Physics & Mathematics (AREA)
- Fuses (AREA)
Abstract
The invention discloses a method for detecting interchangeability of a fuse carrier of a drop-out fuse. At present, as a plurality of drop-out fuse manufacturers exist and the design difference is large, all fuse carriers cannot be used universally. The technical scheme adopted by the invention comprises the following steps: after a fuse carrier is provided with a standard fuse or a simulation fuse, an operator standing on the ground hooks a front surface or a side surface mounting ring of a lower contact of the fuse carrier by using a standard electric insulating hook rod, hangs a universal base on a simulation mounting frame at a position 2.5-5m away from the ground mounting height, hooks a fuse carrier operating ring by using the electric insulating hook rod for switching on and off, then operates the lower contact mounting ring by using the electric insulating hook rod to take off the fuse carrier, and the fuse carrier cannot fall to the ground in the whole process; the fuse carrier is matched with any universal base and has all electrical properties. The invention provides a fuse carrier interchangeability standard, and solves the problem of interchangeable use of the fuse carrier of the drop-out fuse.
Description
Technical Field
The invention belongs to the field of outdoor high-voltage protection electric appliances, and particularly relates to a method for detecting interchangeability of fuse carriers of a drop-out fuse.
Background
The drop-out fuse is used for short-circuit protection and overload protection of the transformer and the line on the high-voltage side of the distribution transformer and a distribution branch line, and is a necessary outdoor high-voltage protection electric appliance. The device has the characteristics of economy, convenient operation, strong adaptability to outdoor environment and the like, and is widely applied to the primary side of a distribution line and a distribution transformer for protection and equipment switching and cutting operation.
The common drop-out fuse consists of a fuse carrier and a base, wherein an upper wiring terminal and a lower wiring terminal of the base are connected into a circuit; and the upper end and the lower end of the fuse carrier are respectively connected with the upper end and the lower end of the base after the fuse carrier is installed, so that the circuit is conducted. When a line breaks down, a fuse element (also called a fuse tube or a fuse wire) in the fuse carrier is fused, the fuse carrier falls off, and a line worker uses a hook rod to take down the fuse carrier to replace the fuse element and then performs closing reset on the fuse carrier, so that the line is recovered to be used.
In the actual use process, the fuse carrier used for cutting off the fault current is often influenced by the frequency of cutting off the fault current, the use environment, the production quality and the like, and the actual service life of the fuse carrier is often far shorter than that of the base. Meanwhile, the time for replacing the base of the drop-out fuse and the influence of power failure are far greater than those of replacing only the fuse carrier. Therefore, in order to improve the line maintenance efficiency, reduce the power failure range and shorten the power failure time, the power supply company hopes that the fuse carrier is damaged or the service life of the fuse carrier is prolonged, and under the condition that the base can be used, the power supply company can recover the power supply by only replacing the fuse carrier. However, since there are numerous drop-out fuse manufacturers and the design difference is large, and the fuse carriers cannot be used in common, a solution is expected to be standardized.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a method for detecting interchangeability of fuse carriers of a drop-out fuse, so that the problem that the fuse carriers and a base can be used interchangeably and the fuse carriers with interchangeability are used when a circuit normally runs, thereby avoiding replacing the base and effectively reducing the power failure time.
Therefore, the invention adopts the following technical scheme: a method for detecting interchangeability of fuse carriers of a drop-out fuse simultaneously meets the following conditions:
1) the length of the melt-carrying piece is 375 +/-1.15 mm;
2) after a fuse carrier is provided with a standard fuse or a simulation fuse, an operator standing on the ground hooks a front or side mounting ring of a lower contact of the fuse carrier by using a standard electric insulating hook rod, hangs a universal base on a simulation mounting frame at a position 2.5-5m away from the ground mounting height, hooks a fuse carrier operating ring by using the electric insulating hook rod for switching on and off, and then operates the lower contact mounting ring by using the electric insulating hook rod to take down the fuse carrier, wherein the fuse carrier is not required to drop or jam in the whole process;
3) after the fuse carrier is provided with a standard fuse or a simulation fuse, the fuse carrier and the universal base rotate 60 degrees from a switch-on position to a switch-off position, and at the moment, the fuse carrier cannot be manually taken down from the universal base;
4) the simulation fuse carrier is manufactured according to the minimum tolerance of a fuse carrier drawing, and after the simulation fuse carrier is switched on to the universal base, 80N pulling force is applied to the simulation fuse carrier operating ring and is perpendicular to the axial direction of the simulation fuse carrier, and the simulation fuse carrier is not allowed to be pulled apart;
5) after a fuse carrier is provided with a 100A fuse or a simulated fuse lower than the resistance of the fuse, any universal base is switched on respectively, and the change of the loop resistance is not more than 20%;
6) the fuse carrier is matched with any universal base and has all electrical properties.
As a supplement to the above technical solution, the lower contact base of the base comprises two hooks, and the distance between the two hooks is 57 mm; the lower contact of the fuse carrier is two cams, and the distance between the two cams is 56 +/-1.
The invention has the following beneficial effects: the invention provides an interchangeability standard, and solves the problem that the fuse carrier of the drop-out fuse can be used interchangeably; when the circuit normally operates, the fuse carrier with interchangeability is used, so that the replacement of the base is avoided, and the power failure time is effectively reduced.
Drawings
Fig. 1 is an exploded view of a drop-out fuse base of the present invention;
fig. 2 is an exploded view of the fuse carrier of the drop out fuse of the present invention.
In the figure, 1-lower contact, 2-mounting ring, 3-operating ring, 4-lower contact seat, 5-hook and 6-fuse element.
Detailed Description
The embodiment provides a method for checking the interchangeability of fuse carriers of a drop-out fuse, which simultaneously meets the following conditions to ensure the interchangeability of the fuse carriers.
1) The length of the melt-carrying piece is 375 +/-1.15 mm;
2) after a fuse carrier is provided with a standard fuse link or a simulation fuse link, an operator standing on the ground hooks the front or side mounting ring 2 of the fuse carrier lower contact 1 by using a standard electric insulating hook rod, hangs a universal base on a simulation mounting frame at a position 2.5-5m away from the ground mounting height, hooks the fuse carrier operating ring 3 by using the electric insulating hook rod for switching on and off, and then operates the lower contact mounting ring 2 by using the electric insulating hook rod to take down the fuse carrier, wherein the fuse carrier is not required to drop or jam in the whole process;
3) after the fuse carrier is provided with the standard fuse 6 or the simulation fuse, the fuse carrier and the universal base rotate 60 degrees from a switch-on position to a switch-off position, and at the moment, the fuse carrier cannot be manually taken down from the universal base;
4) the simulation fuse carrier is manufactured according to the minimum tolerance of a fuse carrier drawing, and after the simulation fuse carrier is switched on to the universal base, 80N pulling force is applied to the simulation fuse carrier operating ring and is perpendicular to the axial direction of the simulation fuse carrier, and the simulation fuse carrier is not allowed to be pulled apart;
5) after a fuse carrier is provided with a 100A fuse or a simulated fuse lower than the resistance of the fuse, any universal base is switched on respectively, and the change of the loop resistance is not more than 20%;
6) the fuse carrier is matched with any universal base and has all electrical properties.
Further, the lower contact seat 4 of the base comprises two hooks 5, and the distance between the two hooks is 57 mm; the lower contact 1 of the fuse carrier is provided with two cams, and the distance between the two cams is 56 +/-1.
The scope of the present invention is not limited to the above description, and any other forms within the teaching of the present invention, which have the same or similar technical solutions as the present invention, are within the scope of the present invention.
Claims (2)
1. A method for detecting interchangeability of fuse carriers of a drop-out fuse is characterized in that the following conditions are simultaneously met to ensure the interchangeability of the fuse carriers:
1) the length of the melt-carrying piece is 375 +/-1.15 mm;
2) after a fuse carrier is provided with a standard fuse or a simulation fuse, an operator standing on the ground hooks a front surface or a side surface mounting ring of a lower contact of the fuse carrier by using a standard electric insulating hook rod, hangs a universal base on a simulation mounting frame at a position 2.5-5m away from the ground mounting height, hooks a fuse carrier operating ring by using the electric insulating hook rod for switching on and off, then operates the lower contact mounting ring by using the electric insulating hook rod to take off the fuse carrier, and the fuse carrier cannot fall to the ground in the whole process;
3) after the fuse carrier is provided with a standard fuse or a simulation fuse, the fuse carrier and the universal base rotate 60 degrees from a switch-on position to a switch-off position, and at the moment, the fuse carrier cannot be manually taken down from the universal base;
4) the simulation fuse carrier is manufactured according to the minimum tolerance of a fuse carrier drawing, and after the simulation fuse carrier is switched on to the universal base, 80N pulling force is applied to the simulation fuse carrier operating ring and is perpendicular to the axial direction of the simulation fuse carrier, and the simulation fuse carrier is not allowed to be pulled apart;
5) after a fuse carrier is provided with a 100A fuse or a simulated fuse lower than the resistance of the fuse, any universal base is switched on respectively, and the change of the loop resistance is not more than 20%;
6) the fuse carrier is matched with any universal base and has all electrical properties.
2. The method for inspecting interchangeability of a fuse carrier according to claim 1, where the lower contact base of the base includes two hooks, and a distance between the two hooks is 57 mm; the lower contact of the fuse carrier is two cams, and the distance between the two cams is 56 +/-1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811437253.XA CN109581146B (en) | 2018-11-28 | 2018-11-28 | Method for detecting interchangeability of fuse carrier of drop-out fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811437253.XA CN109581146B (en) | 2018-11-28 | 2018-11-28 | Method for detecting interchangeability of fuse carrier of drop-out fuse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109581146A CN109581146A (en) | 2019-04-05 |
| CN109581146B true CN109581146B (en) | 2020-11-10 |
Family
ID=65925412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811437253.XA Active CN109581146B (en) | 2018-11-28 | 2018-11-28 | Method for detecting interchangeability of fuse carrier of drop-out fuse |
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| Country | Link |
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| CN (1) | CN109581146B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201465950U (en) * | 2009-06-30 | 2010-05-12 | 浙江赛菲特电气有限公司 | Fuse carrier used for drop-out fuse |
| EP2511711A1 (en) * | 2011-04-14 | 2012-10-17 | Kelvatek Ltd. | Load monitoring in an electricity supply system |
| CN105826144A (en) * | 2016-04-20 | 2016-08-03 | 国家电网公司 | Duckbilled drop type fuse fault emergency processing device |
| CN207282442U (en) * | 2017-09-26 | 2018-04-27 | 国网河南省电力公司新乡供电公司 | A kind of general-purpose fuse switch cartridge fuse |
| CN108732461A (en) * | 2018-04-03 | 2018-11-02 | 贵州电网有限责任公司 | A kind of positioning of fuse switch and condition monitoring system and its monitoring method |
| JP2018179633A (en) * | 2017-04-07 | 2018-11-15 | 日本電信電話株式会社 | Protective device selection system, device, method and program |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101459017A (en) * | 2008-03-14 | 2009-06-17 | 陆敏强 | Locking apparatus for outdoor high voltage dropping type fuse |
| CN103969547A (en) * | 2013-11-19 | 2014-08-06 | 上海诚意电气有限公司 | 10kV drop-out fuse online monitoring system |
-
2018
- 2018-11-28 CN CN201811437253.XA patent/CN109581146B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201465950U (en) * | 2009-06-30 | 2010-05-12 | 浙江赛菲特电气有限公司 | Fuse carrier used for drop-out fuse |
| EP2511711A1 (en) * | 2011-04-14 | 2012-10-17 | Kelvatek Ltd. | Load monitoring in an electricity supply system |
| CN105826144A (en) * | 2016-04-20 | 2016-08-03 | 国家电网公司 | Duckbilled drop type fuse fault emergency processing device |
| JP2018179633A (en) * | 2017-04-07 | 2018-11-15 | 日本電信電話株式会社 | Protective device selection system, device, method and program |
| CN207282442U (en) * | 2017-09-26 | 2018-04-27 | 国网河南省电力公司新乡供电公司 | A kind of general-purpose fuse switch cartridge fuse |
| CN108732461A (en) * | 2018-04-03 | 2018-11-02 | 贵州电网有限责任公司 | A kind of positioning of fuse switch and condition monitoring system and its monitoring method |
Non-Patent Citations (2)
| Title |
|---|
| 10kV跌落式熔断器故障分析及技术改进;谢兆奇;《电世界》;20131231;第32-33页 * |
| 跌落式熔断器的运行与改造;丁荣;《中国电力》;19981231;第75-77页 * |
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| CN109581146A (en) | 2019-04-05 |
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