CN103956284A - Outdoor two-time drop-out fuse linkage system - Google Patents
Outdoor two-time drop-out fuse linkage system Download PDFInfo
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- CN103956284A CN103956284A CN201410217963.7A CN201410217963A CN103956284A CN 103956284 A CN103956284 A CN 103956284A CN 201410217963 A CN201410217963 A CN 201410217963A CN 103956284 A CN103956284 A CN 103956284A
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Abstract
The invention relates to an outdoor two-time drop-out fuse linkage system which comprises a main fusing tube, a first knob insulator provided with the main fusing tube, a standby fusing tube, a second knob insulator provided with the standby fusing tube and a delay linkage mechanism. The main fusing tube is connected to a power distribution line, and the standby fusing tube is connected to the power distribution line through the delay linkage mechanism. The delay linkage mechanism comprises a speed reduction stroke-adjusting device used for torque speed reduction and converting the speed into a rotating angle within a set range for output when the main fusing tube is fused and drops out, a delay device for converting the rotating angle output by the speed reduction stroke-adjusting device into a delay limit for output and a vacuum arc-extinguishing device including a moving contact and a static contact arranged in a vacuum arc-extinguishing air chamber and capable of being opened and closed. The outdoor two-time drop-out fuse linkage system can guarantee operation of the power distribution line, can enable persons to judge fault types according to the drop-out situation, has high sensitivity and reliability, can effectively shorten the fault routine inspection time and is light in structure, low in cost and high in safety and efficiency.
Description
Technical field
The present invention relates to a kind of fuse apparatus being applicable in outdoor electricity distribution circuit.
Background technology
In medium-voltage distribution circuit scene, often use high voltage drop-out type fuse cutout to be used as the protective device after branch line after this fuse and custom power break down.Scene operation for many years proves; it is still one of effective salvo for distribution line; but, also reflect after the action of this fuse, on forced outage after subordinate's branch line and power consumer generation transient fault, affected to a certain extent the problem of power supply reliability meanwhile.
Summary of the invention
The object of this invention is to provide a kind of intelligentized realize secondary fall, more exactly faults type, the long-time open air having a power failure is fallen out fuse linked system for twice while avoiding generic failure.
For achieving the above object, the technical solution used in the present invention is:
Fuse linked system is fallen out in a kind of outdoor both sides, comprises main fusion tube and is equipped with the first porcelain knob of described main fusion tube, fusion tube for subsequent use and is equipped with the second porcelain knob, the time delay link gear of described fusion tube for subsequent use; Described main fusion tube is connected in distribution line, and described fusion tube for subsequent use is connected in described distribution line by described time delay link gear;
Described time delay link gear comprises
Slow down and adjust range device, the input of described deceleration tune range device is in transmission connection mutually with the lower hanging point of described main fusion tube, and torque when described deceleration adjusts range device that described main fusion tube fusing is fallen out is slowed down and is converted into the anglec of rotation output in setting range;
Time-delay mechanism, the input of described time-delay mechanism adjusts the output of range device to be connected with described deceleration, and described time-delay mechanism adjusts the anglec of rotation of range device output to be converted into the output of time delay time limit described deceleration;
Vacuum arc-extinguishing device, described vacuum arc-extinguishing device comprises the moving contact and the fixed contact that are arranged in vacuum extinction air chamber and can opening and closing, described moving contact be connected with the output of described time-delay mechanism and under the control of described time-delay mechanism by its action in time delay time limit with described fixed contact closure, in the distribution line described in described vacuum arc-extinguishing device is connected in after being connected in series with described fusion tube for subsequent use.
Preferably, the precision regulating journey device that decelerator that described deceleration adjusts range device to comprise input to be connected with the lower hanging point of described main fusion tube, input are connected with the output of described decelerator, the output of described precision regulating journey device is connected with described time-delay mechanism.
Preferably, described decelerator is gear reduction unit or worm reducer.
Preferably, the cam rotating under the driving of the output of the deceleration tune range device described in described time-delay mechanism is included in, described cam is connected with the moving contact in described vacuum arc-extinguishing device.
Preferably, between described cam and described moving contact, be provided with reaction spring.
Preferably, the lower hanging point of described main fusion tube adjusts the input of range device to be connected by groove shaft coupling with described deceleration.
Preferably, between the lower hanging point of the lower hanging point of described main fusion tube and described fusion tube for subsequent use, be provided with lower coupling assembling, described lower coupling assembling comprises the upper insulating cover and the lower insulating cover that relatively set firmly, between described upper insulating cover and described lower insulating cover, there is gap, range device is adjusted in described deceleration, described time-delay mechanism, described vacuum arc-extinguishing device is all arranged in described gap, between the moving contact of described vacuum arc-extinguishing device and the lower pile crown of described the first porcelain knob, between the fixed contact of described vacuum arc-extinguishing device and the lower pile crown of described the second porcelain knob, be connected by lower drainage thread good conductor respectively, described lower drainage thread good conductor is also arranged in described gap.
Preferably, the two ends of described lower insulating cover are respectively arranged with the lower pin removably connecting mutually with the lower pile crown of the lower pile crown of the first described porcelain knob or described the second porcelain knob, and described conductor is connected with described lower pin.
Preferably, the upper pile crown of the first described porcelain knob is connected by upper coupling assembling with the upper pile crown of the second described porcelain knob, described upper coupling assembling comprises insulation strip, lower insulation strip and upper drainage thread good conductor, described upper insulation strip and relative the setting firmly of lower insulation strip, between the upper insulation strip described in described upper drainage thread good conductor is fixedly arranged on and described lower insulation strip.
Preferably, the both ends of described upper insulation strip and described lower insulation strip offer pin hole accordingly, are provided with the upper pin removably connecting mutually with the upper pile crown of the upper pile crown of the first described porcelain knob or described the second porcelain knob in described pin hole.
Operation principle of the present invention is: in main fusion tube access distribution line, in the time that distribution line breaks down, main fusion tube fuses and falls, the torque that falling process brings is converted into a corresponding anglec of rotation after adjusting range device through slowing down, this anglec of rotation drives the moving contact deferred action in vacuum arc-extinguishing device through time-delay mechanism again, and fusion tube for subsequent use is accessed in distribution line after time delay.If fault is generic failure, after main fusion tube fusing, in the delay time of one end, automatically start fusion tube for subsequent use, recover the power supply to subordinate's branch line and user; If fault is permanent fault, main fusion tube first fuses and exits, and fusion tube for subsequent use also exits after starting, thereby forms falling out for twice of fuse system.
Because technique scheme is used, the present invention compared with prior art has following advantages:
1, this fuse linked system can produce once according to different faults type that fusing is fallen out or twice fusing is fallen out, personnel can be according to falling out situation failure judgement type, thereby for fixing a breakdown and provide safeguard in time, there is higher sensitivity and reliability, and can effectively shorten fault patrol time;
2, this fuse linked system adopts duplex melting tube design, and personnel can be according to on-the-spot actual conditions, selects neatly single fusion tube operation or duplex melting tube operation, thereby ensures the operation of distribution line;
3, this fuse linked system structure is light, cost is lower, and fail safe and usefulness are higher, meet the requirement of distribution network system intelligent development.
Brief description of the drawings
Accompanying drawing 1 is the outdoor schematic diagram that falls out fuse linked system for twice of the present invention.
Accompanying drawing 2 is the outdoor A portion zoomed-in view that falls out fuse linked system for twice of the present invention.
The schematic diagram that accompanying drawing 3 is the outdoor groove shaft coupling that falls out fuse linked system for twice of the present invention.
The master that accompanying drawing 4 is the outdoor lower coupling assembling that falls out fuse linked system for twice of the present invention looks schematic diagram.
The schematic top plan view that accompanying drawing 5 is the outdoor lower coupling assembling that falls out fuse linked system for twice of the present invention.
The master that accompanying drawing 6 is the outdoor upper coupling assembling that falls out fuse linked system for twice of the present invention looks schematic diagram.
The schematic top plan view that accompanying drawing 7 is the outdoor upper coupling assembling that falls out fuse linked system for twice of the present invention.
Accompanying drawing 8 is the outdoor theory diagram that falls out fuse linked system for twice of the present invention.
Accompanying drawing 9 is the outdoor operational flowchart that falls out fuse linked system for twice of the present invention.
In above accompanying drawing: 1, main fusion tube; 2, the first porcelain knob; 3, fusion tube for subsequent use; 4, the second porcelain knob; 5, main suspension body; 6, main shaft; 7, slow down and adjust range device; 8, time-delay mechanism; 9, vacuum arc-extinguishing device; 10, decelerator; 11, precision regulating journey device; 12, groove shaft coupling; 13, cam; 14, vacuum extinction air chamber; 15, moving contact; 16, fixed contact; 17, reaction spring; 18, upper insulating cover; 19, lower insulating cover; 20, lower drainage thread good conductor; 21, lower pin; 22, upper insulation strip; 23, lower insulation strip; 24, upper drainage thread good conductor; 25, upper pin; 26, upper coupling assembling.
Embodiment
Below in conjunction with embodiment shown in the drawings, the invention will be further described.
Embodiment mono-: shown in accompanying drawing 1 and accompanying drawing 2, a fuse linked system is fallen out in the outdoor both sides that are arranged in 10kV distribution line, comprises main fusion tube 1 and is equipped with the first porcelain knob 2, the fusion tube for subsequent use 3 of main fusion tube 1 and is equipped with the second porcelain knob 4, the time delay link gear of fusion tube 3 for subsequent use.The lower end of main fusion tube 1, for its lower hanging point, comprises main suspension body 5 and main shaft 6, and main suspension body 5 is connected in main fusion tube 1 end and is connected with main shaft 6, when main fusion tube 1 fuses and while falling, it can drive main shaft 6 to rotate by main suspension body 5; The lower end of fusion tube 3 for subsequent use is its lower hanging point.The two ends up and down of the first porcelain knob 2 are respectively pile crown and lower pile crown on it, and the two ends up and down of the second porcelain knob 4 are respectively pile crown and lower pile crown on it.Main fusion tube 1 is directly connected in distribution line, and fusion tube 3 for subsequent use is connected in distribution line by time delay link gear.
Time delay link gear comprises slowing down adjusts range device 7, time-delay mechanism 8 and vacuum arc-extinguishing device 9.
The torque of slowing down while adjusting range device 7 to fall out for main fusion tube 1 is fused is slowed down and is converted into the anglec of rotation output in setting range.This deceleration adjusts the input of range device 7 and the lower hanging point of main fusion tube 1 to be in transmission connection mutually.
Concrete, slow down and adjust range device 7 the comprise input decelerator 10 being connected with the lower hanging point of main fusion tube 1, the precision regulating journey device 11 that input is connected with the output of decelerator 10.
Decelerator 10 is gear reduction unit or worm reducer.In the present embodiment, adopt secondary gear reducer, it comprises the gear of power shaft, output shaft and three transmissions that are meshed, and the power shaft of this decelerator 10 is in transmission connection mutually with the lower hanging point of main fusion tube 1, and the output shaft of decelerator 10 is connected with precision regulating journey device 11.In the present embodiment, accurately speed regulator comprises power shaft, output shaft and is arranged at respectively two bevel gears that are meshed on power shaft and output shaft.Accurately the power shaft of speed regulator and coaxial connection of output shaft of decelerator 10, the output shaft of precision regulating journey device 11 is connected with time-delay mechanism 8.Above-mentioned decelerator 10 and precision regulating journey device 11 can jointly be installed on formation deceleration in same shell and adjust range device 7, the power shaft of decelerator 10 is the input that range device 7 is adjusted in this deceleration, and the output shaft of precision regulating journey device 11 is adjusted the output of range device 7 for this deceleration.The output gearratio i of above-mentioned decelerator 10 is set to arbitrary value between 8-40.And the torque conversion of adjusting range device 7 main fusion tube 1 can be fallen by whole deceleration is the anglec of rotation of unspecified angle between controlled 90 °-180 °.
The lower hanging point of main fusion tube 1 is connected by groove shaft coupling 12 with the input of the tune range device 7 that slows down, as shown in Figure 3.Groove shaft coupling 12 comprises offers reeded body, and this body is fixedly arranged on to slow down and adjusts on the input of range device 7, and the main shaft 6 of 1 time hanging point of main fusion tube is embedded in the groove on body.
Time-delay mechanism 8 is converted into the output of time delay time limit for the anglec of rotation of adjusting range device 7 to export by slowing down.In the present embodiment, adopt mechanical structure to realize time delay, for example.The cam 13 that employing is rotated under the driving of the output of the tune range device 7 that slows down is realized above-mentioned functions, the input of time-delay mechanism 8, the power shaft that is cam 13 adjusts the output of range device 7 to be connected with slowing down, and cam time-delay mechanism 8 can be set as required the anglec of rotation such as is converted into 0.5 second-1 second, 1 second-1.5 seconds, 1.5 seconds-2 seconds, 2 seconds-2.5 seconds, 2.5 seconds-3 seconds, 3 seconds-3.5 seconds at multiple time delay time limit.
Vacuum arc-extinguishing device 9 comprises vacuum extinction air chamber 14, be arranged in vacuum extinction air chamber 14 and moving contact 15 and fixed contact 16 that can opening and closing.Moving contact 15 is connected with the output of time-delay mechanism 8, and moving contact 15 is connected with cam 13 by reaction spring 17 is thereon set, thereby this moving contact 15 can move by its time delay time limit under the control of time-delay mechanism 8 with fixed contact 16 closures.Simultaneously, between the lower pile crown of the moving contact 15 of vacuum arc-extinguishing device 9 and the first porcelain knob 2, be connected by lower drainage thread good conductor 20 respectively between the fixed contact 16 of vacuum arc-extinguishing device 9 and the lower pile crown of the second porcelain knob 4, this vacuum arc-extinguishing device 9 is connected in series with fusion tube 3 for subsequent use after by being connected in distribution line.Lower drainage thread good conductor 20 comprises conductor and is coated on external insulating barrier.And also can realize and being connected by groove shaft coupling 12 between the lower hanging point of fusion tube 3 for subsequent use and fixed contact 16.In the time that moving contact 15 and fixed contact 16 are released state, can realize the normal circulation status of main fusion tube 1, and in the time that moving contact 15 and fixed contact 16 are closure state, can start the time delay circulation status of fusion tube 3 for subsequent use.
Between the lower hanging point of main fusion tube 1 and the lower hanging point of fusion tube for subsequent use 3, be provided with that lower coupling assembling is connected and as supporting and insulation is sealed.As shown in accompanying drawing 4 and accompanying drawing 5, lower coupling assembling comprises the upper insulating cover 18 and the lower insulating cover 19 that relatively set firmly, between upper insulating cover 18 and lower insulating cover 19, there is gap, slow down and adjust range device 7, time-delay mechanism 8, vacuum arc-extinguishing device 9 to be all arranged in gap, and be connected between the moving contact 15 of vacuum arc-extinguishing device 9 and the lower pile crown of the first porcelain knob 2, the lower drainage thread good conductor 20 that is connected between the fixed contact 16 of vacuum arc-extinguishing device 9 and the lower pile crown of the second porcelain knob 4 is also arranged in gap.The two ends of lower insulating cover 19 are respectively arranged with the lower pin 21 removably connecting mutually with the lower pile crown of the first porcelain knob 2 or the lower pile crown of the second porcelain knob 4, and conductor is connected with lower pin 21.
The upper pile crown of the upper pile crown of the first porcelain knob 2 and the second porcelain knob 4 is connected by upper coupling assembling 26.As shown in accompanying drawing 6 and accompanying drawing 7, upper coupling assembling 26 comprises insulation strip 22, lower insulation strip 23 and upper drainage thread good conductor 24, and upper insulation strip 22 is fixedly arranged between insulation strip 22 and lower insulation strip 23 with relative the setting firmly of lower insulation strip 23, upper drainage thread good conductor 24.The both ends of upper insulation strip 22 and lower insulation strip 23 offer pin hole accordingly, are provided with the upper pin 25 removably connecting mutually with the upper pile crown of the first porcelain knob 2 or the upper pile crown of the second porcelain knob 4 in pin hole.Upper drainage thread good conductor 24 comprises conductor and is coated on external insulating barrier.
Above-mentioned main fusion tube 1 and fusion tube for subsequent use 3 all have two kinds of inactive states and motion change state.Two kinds of inactive states refer to that main fusion tube 1 or fusion tube for subsequent use 3 are in off-state or closure state, and motion change state is converted into off-state or is converted into closure state by off-state by closure state to it.
As shown in Figure 8, the operation principle that this open air is fallen out fuse linked system for twice is: main fusion tube 1 accesses distribution line, in the time breaking down, and the fuse overcurrent fusing of main fusion tube 1, thus main fusion tube 1 falls out.In the process of falling out at main fusion tube 1, it rotates and by groove shaft coupling 12, torque is inputed in decelerator 10 around lower hanging point.Decelerator 10 positive action and inputted torque is slowed down and exported precision regulating journey device 11 to by its gearratio.Precision regulating journey device 11 positive action and the anglec of rotation that the torque of input converts certain limit accordingly to is exported and gone top cam time-delay mechanism 8 positive action and turn over certain angle.Along with the rotation of cam 13, the moving contact 15 in the vacuum arc-extinguishing device 9 that it drives is close to fixed contact 16 gradually, and prescribes a time limit in the time arriving the time delay of time-delay mechanism 8, the two closure.Now, if the fault occurring is general transient fault, the fuse of fusion tube 3 for subsequent use access distribution line starting, thus restore electricity, and if the non-transient fault of fault, the fuse of fusion tube 3 for subsequent use also fuses and out of service.Maintenance after breaking down also falls out in the process that fuse linked system resumes operation this open air for twice, first by insulating bar, the main fusion tube 1 that more renews fuse is rotated backward and recovers to access distribution line around its lower hanging point, now, make the also synchronous backward action of decelerator 10, precision regulating journey device 11, cam time-delay mechanism 8, and then the moving contact 15 in vacuum arc-extinguishing device 9 is separated gradually with fixed contact 16, fusion tube 3 for subsequent use exits distribution line.
Shown in accompanying drawing 9, suppose that main fusion tube 1 affects fuse failure because of overcurrent, short trouble, the intrinsic potential energy that main fusion tube 1 falls generation is passed to the lower hanging point of main fusion tube 1, collaborative connected groove shaft joint facilitates decelerator 10 to realize output gearratio i=8-40 by quantizing to slow down with it, and quantifiable low-angle torque forward is passed to precision regulating journey device 11.Precision regulating journey device 11 receives corresponding low-angle torque instruction and sends controlled 90 °-180 ° and is rotated in the forward angle and reaches cam time-delay mechanism 8, cam time-delay mechanism 8 is accepted the time delay time limit of cooperations such as being rotated in the forward angle and being converted into as required 0.5 second-1 second, 1 second-1.5 seconds, 1.5 seconds-2 seconds, 2 seconds-2.5 seconds, 2.5 seconds-3 seconds, 3 seconds-3.5 seconds, and the time delay time limit that vacuum arc-extinguishing device 9 transmits by cam time-delay mechanism 8 is carried out the close operation command that possesses arc extinguishing.When be really transient fault, the fuse of fusion tube 3 for subsequent use passes through the drainage thread good conductor 20 in lower coupling assembling, the moving contact 15 in vacuum arc-extinguishing device 9 and the closed-loop path of fixed contact 16 and restores electricity.Operation repair personnel can be by the falling of main fusion tube 1, the input of fusion tube 3 for subsequent use, and transient fault has occurred a time in the situation judgement that this power customer does not lose electricity consumption, and the fuse of change owner fusion tube 1 more in good time.If not otherwise transient fault, the fuse failure of fusion tube 3 for subsequent use is ended power supply, now must ascertain the reason, and could recover main fusion tube 1 and fusion tube for subsequent use 3 after dealing carefully with.After getting rid of power customer end permanent fault, send and recover main fusion tube 1 by qualified High-Voltage Insulation action bars examination.The reverse intrinsic potential energy that main fusion tube 1 recovers to produce in transmission process is passed to its lower hanging point, collaborative connected groove shaft joint facilitates decelerator 10 to realize output gearratio i=8-40 by quantizing to slow down with it, and quantifiable low-angle torque reversal is passed to precision regulating journey device 11.Precision regulating journey device 11 receives corresponding low-angle torque instruction and sends 90 ° of controlled-180 ° of reverse rotation angles and reaches cam time-delay mechanism 8, cam time-delay mechanism 8 is accepted reverse rotation angle and the time delay time limit coordinating such as is converted into 0.5 second-1 second, 1 second-1.5 seconds, 1.5 seconds-2 seconds, 2 seconds-2.5 seconds, 2.5 seconds-3 seconds, 3 seconds-3.5 seconds, and reaction spring 17 coordinates the time delay time limit that vacuum arc-extinguishing device 9 transmits by cam time-delay mechanism 8 to carry out the lock out operation instruction that possesses arc extinguishing.After main fusion tube 1 recovers power transmission, can send and recover fusion tube 3 for subsequent use by qualified High-Voltage Insulation action bars examination equally, complete resuming work of main fusion tube 1 and fusion tube 3 for subsequent use.
The above-mentioned outdoor fuse linked system of falling out for twice, solve the power failure impact that transient fault brings to a large amount of power customers, and in the time that fusion tube 3 for subsequent use disconnects, can guide field operation repair personnel correctly be judged as permanent fault, must ascertain the reason, deal carefully with and just can restore electricity afterwards, saved in a large number repairing man-hour.Especially, it is intended to solve the draw money on credit difficult point of line and power consumer power supply reliability of remote countryside, adopt the setting of duplex melting tube can react accurately the type of fault, concrete property shows as (1) for general transient fault, first prop up fusion tube by master and fall out, disconnect subordinate's branch line and customer power supply, through the delay of a specified time, start fusion tube 3 for subsequent use, recover the power supply to the following client of this branch line; (2) if permanent fault, main fusion tube 1 first exits, after fusion tube for subsequent use 3 starts, also timing is exited, (inspection) personnel that rob can be according to the out of order type of the position judgment of duplex melting tube; (3) because adopting duplex melting tube design, electric power is robbed (inspection) personnel can be according to on-site actual situations, select flexibly single fusion tube operational mode or duplex melting tube operational mode, exist and close under the condition of the outside destroy hidden danger such as power line construction operation for subordinate's branch line, can menu fusion tube operational mode guarantee that construction is unexpected and cut off the electricity supply in time, as pass through remote spacious hills, industrial crops area, lonely easy generation floating thing causes the actual field such as transient fault, optional duplex melting tube operational mode, fixes a breakdown and restores electricity in time.Its main advantage shows: (1) structure is light, non-maintaining; (2) two molten tools coordinate high sensitivity and reliability; (3) effectively shorten fault patrol time.
Above-described embodiment is only explanation technical conceive of the present invention and feature, and its object is to allow person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences that Spirit Essence is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (10)
1. open air is fallen out a fuse linked system for twice, it is characterized in that: the second porcelain knob, time delay link gear that it comprises main fusion tube and is equipped with the first porcelain knob of described main fusion tube, fusion tube for subsequent use and is equipped with described fusion tube for subsequent use; Described main fusion tube is connected in distribution line, and described fusion tube for subsequent use is connected in described distribution line by described time delay link gear;
Described time delay link gear comprises
Slow down and adjust range device, the input of described deceleration tune range device is in transmission connection mutually with the lower hanging point of described main fusion tube, and torque when described deceleration adjusts range device that described main fusion tube fusing is fallen out is slowed down and is converted into the anglec of rotation output in setting range;
Time-delay mechanism, the input of described time-delay mechanism adjusts the output of range device to be connected with described deceleration, and described time-delay mechanism adjusts the anglec of rotation of range device output to be converted into the output of time delay time limit described deceleration;
Vacuum arc-extinguishing device, described vacuum arc-extinguishing device comprises the moving contact and the fixed contact that are arranged in vacuum extinction air chamber and can opening and closing, described moving contact be connected with the output of described time-delay mechanism and under the control of described time-delay mechanism by its action in time delay time limit with described fixed contact closure, in the distribution line described in described vacuum arc-extinguishing device is connected in after being connected in series with described fusion tube for subsequent use.
2. the outdoor fuse linked system of falling out for twice according to claim 1, it is characterized in that: the precision regulating journey device that decelerator that described deceleration adjusts range device to comprise input to be connected with the lower hanging point of described main fusion tube, input are connected with the output of described decelerator, the output of described precision regulating journey device is connected with described time-delay mechanism.
3. the outdoor fuse linked system of falling out for twice according to claim 2, is characterized in that: described decelerator is gear reduction unit or worm reducer.
4. the outdoor fuse linked system of falling out for twice according to claim 2, it is characterized in that: the cam rotating under the driving of the output of the deceleration tune range device described in described time-delay mechanism is included in, described cam is connected with the moving contact in described vacuum arc-extinguishing device.
5. the outdoor fuse linked system of falling out for twice according to claim 4, is characterized in that: between described cam and described moving contact, be provided with reaction spring.
6. the outdoor fuse linked system of falling out for twice according to claim 1, is characterized in that: the lower hanging point of described main fusion tube adjusts the input of range device to be connected by groove shaft coupling with described deceleration.
7. the outdoor fuse linked system of falling out for twice according to claim 1, it is characterized in that: between the lower hanging point of described main fusion tube and the lower hanging point of described fusion tube for subsequent use, be provided with lower coupling assembling, described lower coupling assembling comprises the upper insulating cover and the lower insulating cover that relatively set firmly, between described upper insulating cover and described lower insulating cover, there is gap, range device is adjusted in described deceleration, described time-delay mechanism, described vacuum arc-extinguishing device is all arranged in described gap, between the moving contact of described vacuum arc-extinguishing device and the lower pile crown of described the first porcelain knob, between the fixed contact of described vacuum arc-extinguishing device and the lower pile crown of described the second porcelain knob, be connected by lower drainage thread good conductor respectively, described lower drainage thread good conductor is also arranged in described gap.
8. the outdoor fuse linked system of falling out for twice according to claim 7, it is characterized in that: the two ends of described lower insulating cover are respectively arranged with the lower pin removably connecting mutually with the lower pile crown of the lower pile crown of the first described porcelain knob or described the second porcelain knob, and described conductor is connected with described lower pin.
9. the outdoor fuse linked system of falling out for twice according to claim 1, it is characterized in that: the upper pile crown of the first described porcelain knob is connected by upper coupling assembling with the upper pile crown of the second described porcelain knob, described upper coupling assembling comprises insulation strip, lower insulation strip and upper drainage thread good conductor, described upper insulation strip and relative the setting firmly of lower insulation strip, between the upper insulation strip described in described upper drainage thread good conductor is fixedly arranged on and described lower insulation strip.
10. the outdoor fuse linked system of falling out for twice according to claim 1, it is characterized in that: the both ends of described upper insulation strip and described lower insulation strip offer pin hole accordingly, in described pin hole, be provided with the upper pin removably connecting mutually with the upper pile crown of the upper pile crown of the first described porcelain knob or described the second porcelain knob.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410217963.7A CN103956284B (en) | 2014-05-22 | 2014-05-22 | Open air falls out fuse linked system for twice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410217963.7A CN103956284B (en) | 2014-05-22 | 2014-05-22 | Open air falls out fuse linked system for twice |
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| Publication Number | Publication Date |
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| CN103956284A true CN103956284A (en) | 2014-07-30 |
| CN103956284B CN103956284B (en) | 2016-02-03 |
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| CN201410217963.7A Active CN103956284B (en) | 2014-05-22 | 2014-05-22 | Open air falls out fuse linked system for twice |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090315664A1 (en) * | 2008-06-16 | 2009-12-24 | Converteam Technology Ltd. | Fuses |
| CN101937808A (en) * | 2009-06-30 | 2011-01-05 | 浙江赛菲特电气有限公司 | Dropping type fuse |
| CN102360998A (en) * | 2011-11-03 | 2012-02-22 | 余谋幸 | Semi-automatic three-phase synchronous drop-out fuse |
| CN203882833U (en) * | 2014-05-22 | 2014-10-15 | 国家电网公司 | Outdoor secondary drop-out fuse linkage system |
-
2014
- 2014-05-22 CN CN201410217963.7A patent/CN103956284B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090315664A1 (en) * | 2008-06-16 | 2009-12-24 | Converteam Technology Ltd. | Fuses |
| CN101937808A (en) * | 2009-06-30 | 2011-01-05 | 浙江赛菲特电气有限公司 | Dropping type fuse |
| CN102360998A (en) * | 2011-11-03 | 2012-02-22 | 余谋幸 | Semi-automatic three-phase synchronous drop-out fuse |
| CN203882833U (en) * | 2014-05-22 | 2014-10-15 | 国家电网公司 | Outdoor secondary drop-out fuse linkage system |
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| Publication number | Publication date |
|---|---|
| CN103956284B (en) | 2016-02-03 |
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