CN206758336U - Vacuum fusion tube isolation switch - Google Patents
Vacuum fusion tube isolation switch Download PDFInfo
- Publication number
- CN206758336U CN206758336U CN201720663957.3U CN201720663957U CN206758336U CN 206758336 U CN206758336 U CN 206758336U CN 201720663957 U CN201720663957 U CN 201720663957U CN 206758336 U CN206758336 U CN 206758336U
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- Prior art keywords
- fuse
- fusion tube
- vacuum fusion
- tube
- vacuum
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- 238000009617 vacuum fusion Methods 0.000 title claims abstract description 40
- 238000002955 isolation Methods 0.000 title claims abstract description 22
- 238000009413 insulation Methods 0.000 claims abstract description 18
- 239000004020 conductor Substances 0.000 claims abstract description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 18
- 244000144985 peep Species 0.000 claims description 5
- 230000004927 fusion Effects 0.000 abstract description 14
- 230000005611 electricity Effects 0.000 abstract description 7
- 230000008033 biological extinction Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 7
- 238000010891 electric arc Methods 0.000 description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035935 pregnancy Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Abstract
It the utility model is related to a kind of vacuum fusion tube isolation switch,Including vacuum fusion tube,Fuse is provided with vacuum fusion tube,The length direction of fuse is parallel with the length direction of vacuum fusion tube,The vacuum fusion tube is provided at both ends with first,Second metallic object,One end of fuse and one end of spring connect,The other end of fuse is connected with the first metallic object,The other end of spring is connected with the second metallic object,Insulation tube is provided with outside vacuum fusion tube,Insulation tube is provided at both ends with first,Second conductor,The fuse of isolation switch is arranged in vacuum fusion tube,Fuse is in the presence of fault current,Fuse failure,In the presence of spring force,Spring reset makes fuse failure point,To one end quick separating,Increase the distance between fracture,And arc-extinguishing medium vacuum,It can ensure that arc extinction,Improve the performance of fusion tube protection equipment,Reduce power failure range,Ensure equipment normal operation,For Electricity customers reliable power supply.
Description
Technical field
It the utility model is related to electrical equipment technical field, and in particular to a kind of vacuum fusion tube isolation switch.
Background technology
The composition of common fall insurance generally by fixed support, insulator, conductive termination, fall the parts such as fusion tube and fuse
Form.Fixed support and insulator play a part of secure wires；Conductive termination both ends are connected with power supply and transformer respectively,
Play the effect of conduction；The effect for falling fusion tube is that fuse melts when the fault current for flowing through fuse reaches fusing current
Stopping pregnancy life electric arc control prevents from forming arc light two-phase or three-phase shortcircuit, forms tripping operation of bypassing the immediate leadership, cause fault coverage to expand in fusion tube
Greatly, the reliable electricity consumption of Electricity customers is influenceed；Fuse is mainly to play fusing when flowing through failure according to the size of rated current.
Drop out fuse is connected in circuit.Fall breaker it is normal in the case of, obvious cut-off point isolation electricity is primarily served when pulling open
The effect in source；During operation, fuse failure can be made during failure in drop out fuse lower end, because the effect of gravity makes to fall under fusion tube
Drop, fault current electric arc is disconnected, so as to disengagement failure circuit, reach the purpose of protection circuit or equipment.
It is conventional to fall fusing in 35 kilovolts of operation of power networks or 10 kilovolts of capacity distribution transformer below 400 kilovolt-amperes
Device is as transformer main protection.Often occur 35 kilovolts or 10 KV distribution transformers burn phenomenon, or even occur two or three
The phenomenon of phase inter-phase arc short circuit, causes whole distribution transformer to have a power failure or expand power failure range, causes whole piece line outage
Accident.Serious analysis failure cause is as follows：(1) during fuse failure, fuse failure adheres to fusion tube apart from short, fusing metal particle
On, high value conductive channel is formed, when voltage pulsation, turns on again, easily forms resonance phenomena, until burning distribution transformer
Or make Explosion of Transformer；(2) it because weather wet weather reason, fusion tube make moist, when voltage pulsation, also can again turn on, easily be formed
Resonance phenomena, the consequence for causing distribution transformer to damage or explode；(3) due to only by the effect of fusion tube gravity, declining fusion tube
Speed is slow, fault current electric arc stretching length, easily forms alternate arc short circuit, causes tripping operation of bypassing the immediate leadership, expand power failure range；(4) by
Suitable for reading to be totally-enclosed in fusion tube, when fuse fuses in fusion tube, due to the effect of electric arc, air ionization forms high pressure draught from molten
Pipe lower end sprays, and produces reaction force and make it that fusion tube disconnection decrease speed is slower, is more likely formed arc short circuit, causes jump of bypassing the immediate leadership
Lock；(5) meeting loose contact Automatic-falling when running, increases frequency of power cut, increases maintenance frequency, increases security risk；(6) fuse
Fusing, when changing because fuse is nonelastic, fuse is easily broken, and wastes fuse, is increased workload and is delayed and send a time.
Utility model content
The purpose of this utility model is：A kind of vacuum fastp-acting fuse is provided, improves fast and reliable disengagement failure electric current
Ability, it is ensured that arc extinction, play a part of isolated fault power equipment.
To achieve the above object, the utility model adopts the following technical scheme that：
Vacuum fusion tube isolation switch, including vacuum fusion tube, fuse, the length of the fuse are provided with the vacuum fusion tube
Direction is parallel with the length direction of vacuum fusion tube, and the vacuum fusion tube is provided at both ends with first, second metallic object, the fuse
One end and one end of spring connect, the other end of fuse is connected with the first metallic object, the other end of the spring and the second gold medal
Belong to body connection, be provided with insulation tube outside the vacuum fusion tube, the insulation tube is provided at both ends with first, second conductor.
Following characteristics also be present in the utility model：
The both ends of the fuse are respectively arranged with annealed copper wire, and the other end of the annealed copper wire is separately fixed at first, second
On metallic object, one end of the spring is fixed on annealed copper wire.
Fixing point is provided with the annealed copper wire with the connection end of fuse, one end of the spring is fixed on fixing point
On.
First, second bolt, the length side of first, second bolt are respectively arranged with first, second conductor
To vertical with insulation tube length direction, first, second bolt be each passed through first, second conductor and with first, second gold medal
Belong to body connection.
Peep hole is offered on the insulation tube, the length direction of the peep hole is parallel with the length direction of insulation tube.
Compared with prior art, the technique effect that the utility model possesses is：The fuse of isolation switch melts installed in vacuum
In pipe, fuse is in the presence of fault current, fuse failure, and in the presence of spring force, spring reset makes fuse failure point,
To one end quick separating, increase the distance between fracture, and arc-extinguishing medium vacuum, can ensure that arc extinction, improve fusion tube protection and set
Standby performance, power failure range is reduced, ensure equipment normal operation, be Electricity customers reliable power supply.
Brief description of the drawings
Fig. 1 is the structure chart of vacuum fusion tube isolation switch；
Fig. 2 and Fig. 3 is the structural representation at other two visual angle of vacuum fusion tube isolation switch；
Fig. 4 is the insulation tube internal structure schematic diagram in vacuum fusion tube isolation switch；
Fig. 5 is the vacuum fusion tube internal structure schematic diagram in vacuum fusion tube isolation switch.
Embodiment
With reference to Fig. 1 to Fig. 5, the utility model is further described：
Vacuum fusion tube isolation switch, including vacuum fusion tube 10, fuse 20, the fuse are provided with the vacuum fusion tube 10
20 length direction is parallel with the length direction of vacuum fusion tube 10, and the vacuum fusion tube 10 is provided at both ends with first, second gold medal
Belong to body 30,40, one end of the fuse 20 is connected with one end of spring 50, and the other end of fuse 20 connects with the first metallic object 30
Connect, the other end of the spring 50 is connected with the second metallic object 40, and insulation tube 60 is provided with outside the vacuum fusion tube 10, described exhausted
Edge pipe 60 is provided at both ends with first, second conductor 70,80；
With reference to shown in Fig. 1, Fig. 2, Fig. 4, the fuse 20 of isolation switch is arranged in vacuum fusion tube 10, and fuse 20 is in failure electricity
In the presence of stream, fuse 20 fuses, and in the presence of the elastic force of spring 50, spring 50, which resets, makes the striking point of fuse 20, fast to one end
Speed separation, increase the distance between fracture, and arc-extinguishing medium vacuum, can ensure that arc extinction, improve the performance of fusion tube protection equipment,
Power failure range is reduced, ensures equipment normal operation, is Electricity customers reliable power supply；
The isolation switch is simple in construction, easily production；The breakpoint telemechanical speed of spring 50 is fast；Fracture distance is big, and arc extinguishing ability is strong,
It will not restrike, can reliably protecting electrical equipment；Equipment operation maintenance expense is reduced, reduces maintenance workload, reduces equipment investment,
Saving fund；Fault outage scope is reduced, ensures equipment normal operation.
As preferred scheme of the present utility model, with reference to shown in Fig. 5, the both ends of the fuse 20 are respectively arranged with annealed copper wire
21, the other end of the annealed copper wire 21 is separately fixed on first, second metallic object 30,40, and one end of the spring 50 is fixed
On annealed copper wire 21；
Above-mentioned annealed copper wire 21 realizes conducting for whole fuse, when fuse 20 fuses, the elastic reset of spring 50
Power causes annealed copper wire 21 to deform, and causes above-mentioned annealed copper wire 21 close to the second metallic object 40, so as to realize above-mentioned isolation
The quick fuse of disconnecting link.
Further, with reference to shown in Fig. 5, the connection end on the annealed copper wire 21 with fuse 20 is provided with fixing point 211,
One end of the spring 50 is fixed on fixing point 211；
With reference to shown in Fig. 3, to realize the installation of above-mentioned insulation tube 60 and vacuum fusion tube 10, first, second conductor 70,
First, second bolt 71,81 is respectively arranged with 80, the length direction and insulation tube 60 of first, second bolt 71,81 are grown
Spend direction it is vertical, first, second bolt 71,81 be each passed through first, second conductor 70,80 and with first, second metal
Body 30,40 connects.
Above-mentioned vacuum fusion tube 10 is transparent quartz glass tube, observes whether the isolation switch occurs what is fused for convenience
Situation, peep hole 61, the length direction of the peep hole 61 and the length direction of insulation tube 60 are offered on the insulation tube 60
It is parallel.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (5)
1. vacuum fusion tube isolation switch, it is characterised in that：Including vacuum fusion tube (10), it is provided with the vacuum fusion tube (10) molten
Silk (20), the length direction of the fuse (20) is parallel with the length direction of vacuum fusion tube (10), the vacuum fusion tube (10)
First, second metallic object (30,40) is provided at both ends with, one end of the fuse (20) is connected with one end of spring (50), fuse
(20) the other end is connected with the first metallic object (30), and the other end of the spring (50) is connected with the second metallic object (40), institute
State and insulation tube (60) be provided with outside vacuum fusion tube (10), the insulation tube (60) be provided at both ends with first, second conductor (70,
80)。
2. vacuum fusion tube isolation switch according to claim 1, it is characterised in that：The both ends of the fuse (20) are set respectively
Annealed copper wire (21) is equipped with, the other end of the annealed copper wire (21) is separately fixed on first, second metallic object (30,40), described
One end of spring (50) is fixed on annealed copper wire (21).
3. vacuum fusion tube isolation switch according to claim 2, it is characterised in that：On the annealed copper wire (21) and fuse
(20) connection end is provided with fixing point (211), and one end of the spring (50) is fixed on fixing point (211).
4. vacuum fusion tube isolation switch according to claim 3, it is characterised in that：First, second conductor (70,80)
On be respectively arranged with first, second bolt (71,81), the length direction and insulation tube of first, second bolt (71,81)
(60) length direction is vertical, and first, second bolt (71,81) is each passed through first, second conductor (70,80) and with
First, the second metallic object (30,40) connects.
5. vacuum fusion tube isolation switch according to claim 4, it is characterised in that：Sight is offered on the insulation tube (60)
Hole (61) is examined, the length direction of the peep hole (61) is parallel with the length direction of insulation tube (60).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720663957.3U CN206758336U (en) | 2017-06-08 | 2017-06-08 | Vacuum fusion tube isolation switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720663957.3U CN206758336U (en) | 2017-06-08 | 2017-06-08 | Vacuum fusion tube isolation switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206758336U true CN206758336U (en) | 2017-12-15 |
Family
ID=60622398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720663957.3U Active CN206758336U (en) | 2017-06-08 | 2017-06-08 | Vacuum fusion tube isolation switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206758336U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111524764A (en) * | 2020-04-17 | 2020-08-11 | 贵州电网有限责任公司 | Just, emergent high-voltage fuse and device of salvageing of installation formula |
-
2017
- 2017-06-08 CN CN201720663957.3U patent/CN206758336U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111524764A (en) * | 2020-04-17 | 2020-08-11 | 贵州电网有限责任公司 | Just, emergent high-voltage fuse and device of salvageing of installation formula |
| CN111524764B (en) * | 2020-04-17 | 2022-04-22 | 贵州电网有限责任公司 | Just, emergent high-voltage fuse and device of salvageing of installation formula |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |