CN102789933A - Outdoor alternating-current high-voltage drop-out fuse - Google Patents
Outdoor alternating-current high-voltage drop-out fuse Download PDFInfo
- Publication number
- CN102789933A CN102789933A CN2012102738548A CN201210273854A CN102789933A CN 102789933 A CN102789933 A CN 102789933A CN 2012102738548 A CN2012102738548 A CN 2012102738548A CN 201210273854 A CN201210273854 A CN 201210273854A CN 102789933 A CN102789933 A CN 102789933A
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- fusion tube
- voltage drop
- accelerator
- outdoor
- hook
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Abstract
The invention relates to an outdoor alternating-current high-voltage drop-out fuse, comprising a porcelain insulator (23), a middle installed steel foot (24), a lower movable contact seat (17), a fusion tube component, an upper support plate (4), an anti-ice cover (6), a hook (10), a lower support plate (18) and a lower bracket (16), wherein the upper support plate (4) is installed on an upper installed steel foot (1); the lower support plate (18) and the lower bracket (16) are installed on a lower installed steel foot (22); an accelerating device (5) is arranged on the side face of the hook (10); one end of the accelerating device (5) contacts with a fusion tube upper ring (11) of the fusion tube component; the accelerating device (5) is a spring or a U-shaped elastic sheet; one end of the accelerating device is fixedly installed on the hook (10) through a bayonet lock. The drop-out fuse can speed up the drop of the fusion tube component, so that the problem about electric arcs resulting from the low drop speed of a fusion tube can be prevented.
Description
Technical field
The present invention relates to a kind of fuse switch, related in particular to a kind of outdoor ac high voltage drop fuse that to accelerate the accelerator that the fusion tube assembly falls of having set up.
Background technology
The outdoor drop-out type fuse that uses at present is used for the overhead distribution system, and the visible indication of overcurrent protection, fault-current protection and fuse member action is provided.Because of it has intuitively visible fracture, and when cut-offfing instrument with load and use, can play the effect of on-load switch and can cut-off load current, create safe operational environment for maintenance circuit and plant maintenance, be used widely.
But in electric line, the high voltage drop-out type fuse cutout that generally uses at present, the drop speed of its fusion tube mainly is the opposition by gas in the active force of following turnover panel and the fusion tube, but the drop speed of fusion tube is limited.Fuse member fusing when breaking down electric current causes the fusion tube drop, the unhappy electric arc that just causes easily of fusion tube drop speed, and the time, long arc was long long more more.The burning of electric arc impacts damage equipment simultaneously to system.Given this design feature just must let the drop of fusion tube speed up for avoiding the arcing time long, and how to design the main R&D direction that the outdoor ac high voltage drop fuse that possesses the device that can accelerate the fusion tube drop has also become present manufacturer.
Summary of the invention
The objective of the invention is to the deficiency to prior art, provide a kind of rational in infrastructure, set up an outdoor ac high voltage drop fuse accelerator, that make fusion tube accelerate to drop.
To achieve these goals; The present invention has adopted following technical scheme: a kind of outdoor ac high voltage drop fuse; Comprise porcelain insulator, middle installation steel pin, fusion tube assembly, following moving contact seat, be installed in and upper backup pad, de-icer boot, the hook on the steel pin be installed and be installed in down lower supporting plate and the lower carriage of installing on the steel pin; Side at hook is provided with an accelerator, encircles on an end of accelerator and the fusion tube of fusion tube assembly to contact.
Above-mentioned accelerator is a spring or U-shaped shell fragment, and its a end is fixedly mounted on the hook through bayonet lock.
The contacted side of ring is riveted a stainless steel part on above-mentioned spring and the fusion tube.Stainless steel part can well contact to transmit power to spring with ring on the fusion tube.
Above-mentioned bayonet lock can only extrude toward the opposite side that spring is housed under the effect of external force, puts in place along with the fusion tube assembly closes a floodgate, and spring also is compressed to balance point.When the balance of accelerator and fusion tube assembly is broken, accelerator instant-free energy makes the fusion tube group quicken to fall.
In the present invention the fusion tube assembly comprise fusion tube, be installed on the fusion tube at fusion tube two ends ring under ring, the fusion tube, fuse, turnover panel and pressure releasing cap etc. down; Pressure releasing cap is installed in the upper end of fusion tube, and presses to touch with the groove of static contact and be connected; Fusion tube ring down is connected with lower carriage through following moving contact seat.
Be respectively equipped with left tension disc, terminal block and right tension disc on above-mentioned upper backup pad and the lower supporting plate, be used for the crimping lead.
Be provided with a spring between above-mentioned static contact and the de-icer boot, make static contact and pressure releasing cap can form effective pressure and touch and be connected.
The present invention includes porcelain insulator, fusion tube assembly and parts such as steel pin are installed up and down, wherein creationary an accelerator is installed on the hook of fusion tube upper side, encircle on accelerator and the fusion tube and contact; When fusion tube closed a floodgate, ring increased potential energy to accelerator on the fusion tube, and when fusion tube was in closing position, fusion tube and accelerator were in poised state; Fuse member fusing when fault current passes through, the poised state of fusion tube is broken, and the potential energy of accelerator discharges, the opposition of gas in the active force of turnover panel and the fusion tube about adding, the fusion tube assembly is able to fall fast, falls speed and is largely increased.
Patented technology based on the applicant in first to file; Outdoor ac high voltage drop fuse can also increase some designs; As in the hemispherical groove of the static contact that contacts with the pressure releasing cap of fusion tube upper end, being provided with the convex surface contact, the quantity of convex surface contact is more than three; L type shell fragment and following conducting strip are installed on lower carriage, under the pressure of L type shell fragment, make down conducting strip press to touch and be connected or the like with the following moving contact seat of fusion tube.
Compared with prior art, the beneficial effect that has of the present invention:
1. newly establish accelerator, can accelerate the drop speed of fusion tube assembly, can be good at avoiding fusion tube to fall the problem that speed causes electric arc slowly.
2. increased the stability that the fusion tube assembly closes a floodgate.Fusion tube and accelerator are in contact with one another and form a kind of poised state, and the stability of its combined floodgate is able to promote.
Description of drawings
Fig. 1 is the structural representation of fuse switch of the present invention.
Fig. 2 is the partial enlarged view of accelerator installation place among fuse switch one embodiment.
Fig. 3 is the structural representation of another embodiment of the present invention fuse switch.
Fig. 4 is the partial enlarged view of accelerator installation place among another embodiment of fuse switch.
Reference numeral: on steel pin 1 is installed, left tension disc 2, right tension disc 3, upper backup pad 4, accelerator 5, de-icer boot 6; Spring 7, static contact 8, pressure releasing cap 9, hook 10 encircles 11, fusion tube 12 on the fusion tube; Fusion tube is ring 13 down, fuse 14, following turnover panel 15, lower carriage 16, following moving contact seat 17, lower supporting plate 18; Following terminal block 19, right tension disc 20, left tension disc 21, following installation steel pin 22, porcelain insulator 23, the middle steel pin 24 of installing.
Embodiment
Below in conjunction with accompanying drawing the present invention is further specified.
Embodiment 1:
Like accompanying drawing 1, shown in 2; Outdoor ac high voltage drop fuse of the present invention; Comprise porcelain insulator 23, lower carriage 16, de-icer boot 6, fusion tube assembly and accelerator 5 etc., the fusion tube assembly comprises fusion tube 12, be installed in encircle 11 on the fusion tube at fusion tube 12 two ends, fusion tube ring 13, fuse 14, turnover panel 15 and pressure releasing cap 9 etc. down down; Its primary structure is: following three positions are provided with 3 steel pin on porcelain insulator 23, and the middle steel pin 24 of installing is used for outdoor ac high voltage drop fuse is installed in the target location; Under 22 on steel pin is installed is used for fixing lower supporting plate 18 and lower carriage 16 be installed, lower supporting plate 18 is provided with play terminal block 19, right tension disc 20 and left tension disc 21, the fusion tube of fusion tube assembly ring 13 down is connected with lower carriage 16 through following moving contact seat 17; Last installation steel pin 1 is used for fixing to be installed supporting bracket 4, de-icer boot 6, static contact 8 and links up with 10; Upper backup pad 4 is provided with left tension disc 2, right tension disc 3 and terminal block; Be provided with a spring 7 between de-icer boot 6 and the static contact 8, can make static contact 8 form effectively to press to touch and be connected with pressure releasing cap 9; Wherein accelerator 5 is a spring, and its a end is fixedly mounted on the hook 10 through bayonet lock, and the other end is riveted a stainless steel part, then with fusion tube on ring 11 contact.In this outdoor ac high voltage drop fuse, when fusion tube 12 closed a floodgate, ring 11 increased potential energy for accelerator 5 on the fusion tube, and when fusion tube 12 was in closing position, fusion tube 12 was in poised state with accelerator 5; Fuse 14 fusing when fault current passes through; The poised state of fusion tube 12 is broken; The potential energy of accelerator 5 discharges, the opposition of gases in the active force of turnover panel 15 and the fusion tube 12 about adding, and the fusion tube assembly is able to fall fast; Fall speed and be largely increased, can be good at avoiding fusion tube to fall the problem that speed causes electric arc slowly.
Embodiment 2:
Like accompanying drawing 3, shown in 4; Outdoor ac high voltage drop fuse of the present invention; Comprise porcelain insulator 23, lower carriage 16, de-icer boot 6, fusion tube assembly and accelerator 5 etc., the fusion tube assembly comprises fusion tube 12, be installed in encircle 11 on the fusion tube at fusion tube 12 two ends, fusion tube ring 13, fuse 14, turnover panel 15 and pressure releasing cap 9 etc. down down; Its primary structure is: following three positions are provided with 3 steel pin on porcelain insulator 23, and the middle steel pin 24 of installing is used for outdoor ac high voltage drop fuse is installed in the target location; Under 22 on steel pin is installed is used for fixing lower supporting plate 18 and lower carriage 16 be installed, lower supporting plate 18 is provided with play terminal block 19, right tension disc 20 and left tension disc 21, the fusion tube of fusion tube assembly ring 13 down is connected with lower carriage 16 through following moving contact seat 17; Last installation steel pin 1 is used for fixing to be installed supporting bracket 4, de-icer boot 6, static contact 8 and links up with 10; Upper backup pad 4 is provided with left tension disc 2, right tension disc 3 and terminal block; Be provided with a spring 7 between de-icer boot 6 and the static contact 8, can make static contact 8 form effectively to press to touch and be connected with pressure releasing cap 9; Wherein accelerator 5 is a U-shaped shell fragment, and its a end is fixedly mounted on the hook 10 through bayonet lock, encircles 11 on the other end and the fusion tube and contacts.In this outdoor ac high voltage drop fuse, when fusion tube 12 closed a floodgate, ring 11 increased potential energy for accelerator 5 on the fusion tube, and when fusion tube 12 was in closing position, fusion tube 12 was in poised state with accelerator 5; Fuse 14 fusing when fault current passes through; The poised state of fusion tube 12 is broken; The potential energy of accelerator 5 discharges, the opposition of gases in the active force of turnover panel 15 and the fusion tube 12 about adding, and the fusion tube assembly is able to fall fast; Fall speed and be largely increased, can be good at avoiding fusion tube to fall the problem that speed causes electric arc slowly.
Claims (4)
1. outdoor ac high voltage drop fuse; Comprise porcelain insulator (23), middle installation steel pin (24), following moving contact seat (17), fusion tube assembly, be installed in upper backup pad (4), de-icer boot (6), the hook of installing on the steel pin (1) (10) and be installed in down lower supporting plate (18) and the lower carriage of installing on the steel pin (22) (16); It is characterized in that: the side at hook (10) is provided with an accelerator (5), encircles (11) on an end of accelerator (5) and the fusion tube of fusion tube assembly and contacts.
2. outdoor ac high voltage drop fuse according to claim 1 is characterized in that: described accelerator (5) is a spring or U-shaped shell fragment, and its a end is fixedly mounted on the hook (10) through bayonet lock.
3. outdoor ac high voltage drop fuse according to claim 2 is characterized in that: ring (11) contacted side is riveted a stainless steel part on described spring and the fusion tube.
4. according to claim 2 or 3 described outdoor ac high voltage drop fuses, it is characterized in that: described bayonet lock can only extrude toward the opposite side that spring is housed under the effect of external force, puts in place along with the fusion tube assembly closes a floodgate, and spring also is compressed to balance point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210273854.8A CN102789933B (en) | 2012-08-03 | 2012-08-03 | Outdoor ac high voltage drop fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210273854.8A CN102789933B (en) | 2012-08-03 | 2012-08-03 | Outdoor ac high voltage drop fuse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102789933A true CN102789933A (en) | 2012-11-21 |
| CN102789933B CN102789933B (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210273854.8A Expired - Fee Related CN102789933B (en) | 2012-08-03 | 2012-08-03 | Outdoor ac high voltage drop fuse |
Country Status (1)
| Country | Link |
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| CN (1) | CN102789933B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103681156A (en) * | 2013-12-22 | 2014-03-26 | 广西和谐电力科技有限公司 | Silicon rubber drop-out fuse |
| CN103700552A (en) * | 2013-12-22 | 2014-04-02 | 广西和谐电力科技有限公司 | Drop-out fuse |
| CN103700553A (en) * | 2013-12-22 | 2014-04-02 | 广西和谐电力科技有限公司 | Arc-control device applied to drop-out fuse |
| CN104576258A (en) * | 2014-12-30 | 2015-04-29 | 国家电网公司 | Self-energy-storage high-voltage drop blowout switch |
| CN105684119A (en) * | 2013-10-30 | 2016-06-15 | Abb技术有限公司 | Cutout for use in electrical distribution network |
| CN106611685A (en) * | 2015-10-26 | 2017-05-03 | 辽宁华隆电力科技股份有限公司 | A high-pressure voltage-drop type fuse arranged in parallel |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3242291A (en) * | 1963-01-18 | 1966-03-22 | Westinghouse Electric Corp | Gas-evolving arc-elongating highvoltage fuse |
| CN101763999A (en) * | 2008-11-04 | 2010-06-30 | 唐家朋 | Dropout fuse |
| CN202259117U (en) * | 2011-08-26 | 2012-05-30 | 广西和谐电力科技有限公司 | Outdoor AC high-voltage drop type fuse |
| CN202712106U (en) * | 2012-08-03 | 2013-01-30 | 广西和谐电力科技有限公司 | Outdoor alternating-current high-voltage drop-out fuse |
-
2012
- 2012-08-03 CN CN201210273854.8A patent/CN102789933B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3242291A (en) * | 1963-01-18 | 1966-03-22 | Westinghouse Electric Corp | Gas-evolving arc-elongating highvoltage fuse |
| CN101763999A (en) * | 2008-11-04 | 2010-06-30 | 唐家朋 | Dropout fuse |
| CN202259117U (en) * | 2011-08-26 | 2012-05-30 | 广西和谐电力科技有限公司 | Outdoor AC high-voltage drop type fuse |
| CN202712106U (en) * | 2012-08-03 | 2013-01-30 | 广西和谐电力科技有限公司 | Outdoor alternating-current high-voltage drop-out fuse |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105684119A (en) * | 2013-10-30 | 2016-06-15 | Abb技术有限公司 | Cutout for use in electrical distribution network |
| CN105684119B (en) * | 2013-10-30 | 2017-12-08 | Abb技术有限公司 | For the fuse used in distribution network |
| US10283292B2 (en) | 2013-10-30 | 2019-05-07 | Abb Schweiz Ag | Cutout for use in electrical distribution network |
| CN103681156A (en) * | 2013-12-22 | 2014-03-26 | 广西和谐电力科技有限公司 | Silicon rubber drop-out fuse |
| CN103700552A (en) * | 2013-12-22 | 2014-04-02 | 广西和谐电力科技有限公司 | Drop-out fuse |
| CN103700553A (en) * | 2013-12-22 | 2014-04-02 | 广西和谐电力科技有限公司 | Arc-control device applied to drop-out fuse |
| CN104576258A (en) * | 2014-12-30 | 2015-04-29 | 国家电网公司 | Self-energy-storage high-voltage drop blowout switch |
| CN106611685A (en) * | 2015-10-26 | 2017-05-03 | 辽宁华隆电力科技股份有限公司 | A high-pressure voltage-drop type fuse arranged in parallel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102789933B (en) | 2015-09-02 |
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Granted publication date: 20150902 Termination date: 20190803 |