CN103956284B - Open air falls out fuse linked system for twice - Google Patents
Open air falls out fuse linked system for twice Download PDFInfo
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- CN103956284B CN103956284B CN201410217963.7A CN201410217963A CN103956284B CN 103956284 B CN103956284 B CN 103956284B CN 201410217963 A CN201410217963 A CN 201410217963A CN 103956284 B CN103956284 B CN 103956284B
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- 230000004927 fusion Effects 0.000 claims abstract description 101
- 229910052573 porcelain Inorganic materials 0.000 claims abstract description 38
- 230000007246 mechanism Effects 0.000 claims abstract description 36
- 230000009467 reduction Effects 0.000 claims abstract description 7
- 230000008033 biological extinction Effects 0.000 claims abstract description 6
- 238000009413 insulation Methods 0.000 claims description 28
- 230000008878 coupling Effects 0.000 claims description 26
- 238000010168 coupling process Methods 0.000 claims description 26
- 238000005859 coupling reaction Methods 0.000 claims description 26
- 239000004020 conductor Substances 0.000 claims description 22
- 230000001105 regulatory effect Effects 0.000 claims description 17
- 230000009471 action Effects 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 5
- 230000035945 sensitivity Effects 0.000 abstract description 3
- 230000001052 transient effect Effects 0.000 description 8
- 230000005611 electricity Effects 0.000 description 7
- 238000002844 melting Methods 0.000 description 7
- 230000008018 melting Effects 0.000 description 7
- 230000008859 change Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008092 positive effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The present invention relates to a kind of open air and fall out fuse linked system for twice, comprise main fusion tube and be equipped with the first porcelain knob of main fusion tube, fusion tube for subsequent use and be equipped with the second porcelain knob, the time delay link gear of fusion tube for subsequent use; Main fusion tube is connected in distribution line, and fusion tube for subsequent use is connected in distribution line by time delay link gear; Time delay link gear comprise the torque reduction when fusing of main fusion tube being fallen out and be converted into that range device is adjusted in deceleration that the anglec of rotation in setting range exports, the anglec of rotation of adjusting range device to export by slowing down is converted into time-delay mechanism that the time delay time limit exports, comprise and to be arranged in vacuum extinction air chamber and can the moving contact of opening and closing and the vacuum arc-extinguishing device of fixed contact.This fuse linked system can ensure the operation of distribution line, and its situation of falling out can have higher sensitivity and reliability for personnel's failure judgement type, and can effectively shorten fault patrol time; Its portable construction, cost are lower, and fail safe and usefulness higher.
Description
Technical field
The present invention relates to a kind of fuse apparatus be applicable in outdoor electricity distribution circuit.
Background technology
In medium-voltage distribution circuit scene, often use high voltage drop-out type fuse cutout be used as branch line after this fuse and custom power break down after protective device.Scene is for many years run to be proved; it is still one of the available protecting means for distribution line; but meanwhile, after also reflecting this fuse action, to forced outage after subordinate's branch line and power consumer generation transient fault, the problem that have impact on power supply reliability to a certain extent.
Summary of the invention
The object of this invention is to provide a kind of intelligentized realize secondary fall, can more exactly faults type, avoid the open air had a power failure for a long time during generic failure to fall out fuse linked system for twice.
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 the second porcelain knob, the time delay link gear of the first porcelain knob of main fusion tube and the main fusion tube described in outfit, fusion tube for subsequent use and the fusion tube for subsequent use described in outfit; 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, described deceleration adjusts the input of range device to be in transmission connection mutually with the lower hanging point of described main fusion tube, torque reduction when described deceleration adjusts range device described main fusion tube fusing to be fallen out the anglec of rotation output be converted in setting range;
Time-delay mechanism, input and the described deceleration of described time-delay mechanism adjust the output of range device to be connected, and the anglec of rotation that described deceleration adjusts range device to export is converted into the output of time delay time limit by described time-delay mechanism;
Vacuum arc-extinguishing device, described vacuum arc-extinguishing device comprises and to be arranged in vacuum extinction air chamber and can the moving contact of opening and closing and fixed contact, described moving contact is connected with the output of described time-delay mechanism and closes with described fixed contact by its time delay time limit action under the control of described time-delay mechanism, and described vacuum arc-extinguishing device is connected in described distribution line after being connected in series with described fusion tube for subsequent use.
Preferably, the precision regulating journey device that decelerator, input that described deceleration adjusts range device to comprise input to be connected with the lower hanging point of described main fusion tube 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, described time-delay mechanism is included in the cam rotated under the driving of the output of range device is adjusted in described deceleration, and described cam is connected with the moving contact in described vacuum arc-extinguishing device.
Preferably, reaction spring is provided with between described cam and described moving contact.
Preferably, lower hanging point and the described deceleration of described main fusion tube adjust the input of range device to be connected by groove shaft coupling.
Preferably, lower coupling assembling is provided with between the lower hanging point of described main fusion tube and the lower hanging point of described fusion tube for subsequent use, described lower coupling assembling comprises the upper insulating cover and 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 the first described porcelain knob, be connected respectively by lower drainage thread good conductor between the fixed contact of described vacuum arc-extinguishing device and the lower pile crown of the second described porcelain knob, 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 connected mutually with the lower pile crown of the lower pile crown of the first described porcelain knob or the second described 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 is relative with lower insulation strip to be set firmly, and described upper drainage thread good conductor is fixedly arranged between described upper insulation strip 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 connected mutually with the upper pile crown of the upper pile crown of the first described porcelain knob or the second described porcelain knob in described pin hole.
Operation principle of the present invention is: in main fusion tube access distribution line, when 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 slowing down and adjusting range device, this anglec of rotation drives again the moving contact deferred action in vacuum arc-extinguishing device through time-delay mechanism, fusion tube for subsequent use is accessed in distribution line after time delay.If fault is generic failure, then after main fusion tube fusing, automatically starts fusion tube for subsequent use in the delay time of one end, recover the power supply to subordinate's branch line and user; If fault is permanent fault, then main fusion tube first fuses and exits, and fusion tube for subsequent use also exits after starting, thus 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 fusing and to fall out or twice fusing is fallen out according to different faults type, personnel can according to falling out situation failure judgement type, thus provide safeguard for fixing a breakdown 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 according to the actual conditions at scene, can select single fusion tube to run or duplex melting tube operation, thus ensure the operation of distribution line neatly;
3, this fuse linked system portable construction, cost are lower, and fail safe and usefulness higher, meet the requirement of distribution network system intelligent development.
Accompanying drawing explanation
Accompanying drawing 1 is the outdoor schematic diagram falling out fuse linked system for twice of the present invention.
Accompanying drawing 2 is the outdoor A portion zoomed-in view falling out fuse linked system for twice of the present invention.
Accompanying drawing 3 is the outdoor schematic diagram falling out the groove shaft coupling of fuse linked system for twice of the present invention.
Accompanying drawing 4 is outdoor schematic front view of falling out the lower coupling assembling of fuse linked system for twice of the present invention.
Accompanying drawing 5 is outdoor schematic top plan view of falling out the lower coupling assembling of fuse linked system for twice of the present invention.
Accompanying drawing 6 is outdoor schematic front view of falling out the upper coupling assembling of fuse linked system for twice of the present invention.
Accompanying drawing 7 is outdoor schematic top plan view of falling out the upper coupling assembling of fuse linked system for twice of the present invention.
Accompanying drawing 8 is the outdoor theory diagram falling out fuse linked system for twice of the present invention.
Accompanying drawing 9 is the outdoor operational flowchart falling 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 tune 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 one: shown in accompanying drawing 1 and accompanying drawing 2, a fuse linked system is fallen out in the outdoor both sides be arranged in 10kV distribution line, comprises main fusion tube 1 and is equipped with the first porcelain knob 2 of main fusion tube 1, fusion tube for subsequent use 3 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 is its lower hanging point, and comprise main suspension body 5 and main shaft 6, main suspension body 5 is connected to main fusion tube 1 end and is connected with main shaft 6, and when main fusion tube 1 fuses and falls, 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 then 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.
Torque reduction when adjusting range device 7 for the fusing of main fusion tube 1 being fallen out the anglec of rotation be converted in setting range of slowing down exports.This deceleration adjusts the input of range device 7 to be in transmission connection mutually with the lower hanging point of main fusion tube 1.
Concrete, the precision regulating journey device 11 that slow down decelerator 10, the input adjusting range device 7 to comprise input to be connected with the lower hanging point of main fusion tube 1 are 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 then connected with precision regulating journey device 11.In the present embodiment, accurate speed regulator comprises power shaft, output shaft and is arranged at two bevel gears be meshed on power shaft and output shaft respectively.The power shaft of accurate speed regulator is connected with the output shaft of decelerator 10 is coaxial, and the output shaft of precision regulating journey device 11 is then connected with time-delay mechanism 8.Above-mentioned decelerator 10 and precision regulating journey device 11 jointly can be installed in same shell and form the tune range device 7 that slows down, 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 then for the output of range device 7 is adjusted in this deceleration.The output gearratio i of above-mentioned decelerator 10 is set to arbitrary value between 8-40.And adjust range device 7 can be the anglec of rotation of unspecified angle between controlled 90 °-180 ° by the torque conversion that main fusion tube 1 falls by whole deceleration.
The lower hanging point of main fusion tube 1 adjusts the input of range device 7 to be connected by groove shaft coupling 12 with deceleration, as shown in Figure 3.Groove shaft coupling 12 comprises offers reeded body, and this body is fixedly arranged on and slows down on the input of tune range device 7, and the main shaft 6 of main fusion tube 1 time hanging point is then 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 adjusting range device 7 to export by slowing down.In the present embodiment, mechanical structure is adopted to realize time delay, such as.Adopt the cam 13 rotated under the driving of the output of the tune range device 7 that slows down to realize above-mentioned functions, the input of time-delay mechanism 8, namely the power shaft of cam 13 adjusts the output of range device 7 to be connected with deceleration, can arrange that the anglec of rotation is converted into 0.5 second-1 second by cam time-delay mechanism 8, multiple time delay time limit such as 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 as required.
Vacuum arc-extinguishing device 9 comprises vacuum extinction air chamber 14, be arranged in vacuum extinction air chamber 14 and can the moving contact 15 of opening and closing and fixed contact 16.Moving contact 15 is connected with the output of time-delay mechanism 8, and namely moving contact 15 is connected with cam 13 by the reaction spring 17 arranged thereon, thus this moving contact 15 can close with fixed contact 16 by its time delay time limit action under the control of time-delay mechanism 8.Simultaneously, be connected respectively by lower drainage thread good conductor 20, by being connected in distribution line after making this vacuum arc-extinguishing device 9 be connected in series with fusion tube 3 for subsequent use between the moving contact 15 of vacuum arc-extinguishing device 9 and the lower pile crown of the first porcelain knob 2, between the fixed contact 16 of vacuum arc-extinguishing device 9 and the lower pile crown of the second porcelain knob 4.Lower drainage thread good conductor 20 comprises conductor and is coated on external insulating barrier.And the lower hanging point of fusion tube 3 for subsequent use also can realize being connected by groove shaft coupling 12 with between fixed contact 16.When moving contact 15 and fixed contact 16 are released state, the normal circulation status of main fusion tube 1 can be realized, and when moving contact 15 and fixed contact 16 are closure state, then can start the time delay circulation status of fusion tube 3 for subsequent use.
Be provided with lower coupling assembling between the lower hanging point of main fusion tube 1 and the lower hanging point of fusion tube 3 for subsequent use be connected and encapsulate as supporting and insulating.As shown in figures 4 and 5, lower coupling assembling comprises the upper insulating cover 18 and lower insulating cover 19 that relatively set firmly, between upper insulating cover 18 and lower insulating cover 19, there is gap, slow down adjust range device 7, time-delay mechanism 8, vacuum arc-extinguishing device 9 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 be 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 connected mutually with the lower pile crown of the lower pile crown of the first porcelain knob 2 or the second porcelain knob 4, and conductor is connected with lower pin 21.
The upper pile crown of the first porcelain knob 2 is connected by upper coupling assembling 26 with the upper pile crown of the second porcelain knob 4.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 relative with lower insulation strip 23 to be set firmly, and upper drainage thread good conductor 24 is fixedly arranged between insulation strip 22 and lower insulation strip 23.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 connected mutually with the upper pile crown of the upper pile crown of the first porcelain knob 2 or 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 then converted into off-state to it by closure state or is converted into closure state by off-state.
As shown in Figure 8, the operation principle that this open air falls out fuse linked system for twice is: main fusion tube 1 accesses distribution line, when a failure occurs it, and the fuse overcurrent fusing of main fusion tube 1, thus main fusion tube 1 falls out.In the process that main fusion tube 1 falls out, it is rotated around lower hanging point and torque is inputed in decelerator 10 by groove shaft coupling 12.Decelerator 10 positive action and by inputted torque by its gearratio slow down export precision regulating journey device 11 to.Precision regulating journey device 11 positive action and the anglec of rotation that the torque of input converted accordingly to certain limit exports and goes 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 when arriving the time delay of time-delay mechanism 8 in limited time, the two closes.Now, if the fault occurred is general transient fault, then the fuse access distribution line starting of fusion tube 3 for subsequent use, thus restore electricity, and if fault non-momentary fault, then the fuse of fusion tube 3 for subsequent use also fuses and out of service.Maintenance after breaking down in this open air is fallen out for twice process that fuse linked system resumes operation, first by insulating bar, the main fusion tube 1 more renewing fuse rotated backward around its lower hanging point and recover to access distribution line, now, make decelerator 10, precision regulating journey device 11, cam time-delay mechanism 8 also synchronous backward action, 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, the collaborative groove shaft joint be connected facilitates decelerator 10 to realize output gearratio i=8-40 by quantizing deceleration 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 rotates forward angle and reach cam time-delay mechanism 8, cam time-delay mechanism 8 accepts the time delay time limit rotating forward the cooperations such as angle is also 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 as required, and the time delay time limit that vacuum arc-extinguishing device 9 transmits by cam time-delay mechanism 8 performs the close operation command possessing arc extinguishing.When being transient fault really, then the closed-loop path of the drainage thread good conductor 20 of the fuse of fusion tube 3 for subsequent use in lower coupling assembling, the moving contact 15 in vacuum arc-extinguishing device 9 and fixed contact 16 restores electricity.Running repair personnel can falling by main fusion tube 1, the input of fusion tube 3 for subsequent use, and the situation that this power customer does not lose electricity consumption judges to there occurs a transient fault, and the fuse of more change owner fusion tube 1 in good time.If not otherwise transient fault, then the fuse failure of fusion tube 3 for subsequent use stops power supply, now must ascertain the reason, could recover main fusion tube 1 and fusion tube for subsequent use 3 after dealing carefully with.Sent by the examination of qualified High-Voltage Insulation action bars after eliminating power customer end permanent fault and recover main fusion tube 1.The reverse intrinsic potential energy that main fusion tube 1 recovers to produce in transmission process is passed to its lower hanging point, the collaborative groove shaft joint be connected facilitates decelerator 10 to realize output gearratio i=8-40 by quantizing deceleration 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 °-180 ° controlled reverse rotation angles and reaches cam time-delay mechanism 8, cam time-delay mechanism 8 accepts reverse rotation angle and the time delay time limit coordinated such as to be 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 vacuum arc-extinguishing device 9 to possess the lock out operation instruction of arc extinguishing by the time delay time limit execution that cam time-delay mechanism 8 transmits.After main fusion tube 1 recovers power transmission, send by the examination of qualified High-Voltage Insulation action bars equally and recover fusion tube 3 for subsequent use, complete resuming work of main fusion tube 1 and fusion tube 3 for subsequent use.
Above-mentionedly outdoorly fall out fuse linked system for twice, solve the power failure impact that transient fault brings to a large amount of power customer, and when fusion tube 3 for subsequent use disconnects, guide field operation repair personnel correctly can be judged as permanent fault, must ascertain the reason, deal carefully with and just to restore electricity afterwards, save repairing man-hour in a large number.Especially, it is intended to solve remote countryside and draws money on credit the difficult point of line and power consumer power supply reliability, adopt the setting of duplex melting tube can react the type of fault accurately, concrete property shows as (1) for general transient fault, first fallen out by a main fusion tube, 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 client below this branch line; (2) if permanent fault, then main fusion tube 1 first exits, and fusion tube 3 for subsequent use also regularly exits after starting, and (inspection) personnel that rob can 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), and personnel can according to on-site actual situations, the single fusion tube operational mode of flexible selection or duplex melting tube operational mode, under the condition of the outside destroy hidden danger such as power line construction operation is closed on for the existence of subordinate's branch line, menu fusion tube operational mode can guarantee that construction is surprisingly cut off the electricity supply in time, in case of passed 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 in time and restores electricity.Its main advantage shows: (1) portable construction, non-maintaining; (2) high sensitivity that coordinates of two molten tool and reliability; (3) effectively fault patrol time is shortened.
Above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (10)
1. open air falls out a fuse linked system for twice, it is characterized in that: it comprises the second porcelain knob, the time delay link gear of the first porcelain knob of main fusion tube and the main fusion tube described in outfit, fusion tube for subsequent use and the fusion tube for subsequent use described in outfit; 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, described deceleration adjusts the input of range device to be in transmission connection mutually with the lower hanging point of described main fusion tube, torque reduction when described deceleration adjusts range device described main fusion tube fusing to be fallen out the anglec of rotation output be converted in setting range;
Time-delay mechanism, input and the described deceleration of described time-delay mechanism adjust the output of range device to be connected, and the anglec of rotation that described deceleration adjusts range device to export is converted into the output of time delay time limit by described time-delay mechanism;
Vacuum arc-extinguishing device, described vacuum arc-extinguishing device comprises and to be arranged in vacuum extinction air chamber and can the moving contact of opening and closing and fixed contact, described moving contact is connected with the output of described time-delay mechanism and closes with described fixed contact by its time delay time limit action under the control of described time-delay mechanism, and described vacuum arc-extinguishing device is connected in described distribution line after being connected in series with described fusion tube for subsequent use.
2. according to claim 1ly outdoorly fall out fuse linked system for twice, it is characterized in that: the precision regulating journey device that decelerator, input that described deceleration adjusts range device to comprise input to be connected with the lower hanging point of described main fusion tube are connected with the output of described decelerator, the output of described precision regulating journey device is connected with described time-delay mechanism.
3. according to claim 2ly outdoorly fall out fuse linked system for twice, it is characterized in that: described decelerator is gear reduction unit or worm reducer.
4. according to claim 2ly outdoorly fall out fuse linked system for twice, it is characterized in that: described time-delay mechanism is included in the cam rotated under the driving of the output of range device is adjusted in described deceleration, and described cam is connected with the moving contact in described vacuum arc-extinguishing device.
5. according to claim 4ly outdoorly fall out fuse linked system for twice, it is characterized in that: between described cam and described moving contact, be provided with reaction spring.
6. according to claim 1ly outdoorly fall out fuse linked system for twice, it is characterized in that: lower hanging point and the described deceleration of described main fusion tube adjust the input of range device to be connected by groove shaft coupling.
7. according to claim 1ly outdoorly fall out fuse linked system for twice, 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 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 the first described porcelain knob, be connected respectively by lower drainage thread good conductor between the fixed contact of described vacuum arc-extinguishing device and the lower pile crown of the second described porcelain knob, described lower drainage thread good conductor is also arranged in described gap.
8. according to claim 7ly outdoorly fall out fuse linked system for twice, it is characterized in that: the two ends of described lower insulating cover are respectively arranged with the lower pin removably connected mutually with the lower pile crown of the lower pile crown of the first described porcelain knob or the second described porcelain knob, and described conductor is connected with described lower pin.
9. according to claim 1ly outdoorly fall out fuse linked system for twice, 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 is relative with lower insulation strip to be set firmly, and described upper drainage thread good conductor is fixedly arranged between described upper insulation strip and described lower insulation strip.
10. according to claim 9ly outdoorly fall out fuse linked system for twice, 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 connected mutually with the upper pile crown of the upper pile crown of the first described porcelain knob or the second described 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 |
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| 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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| CN103956284A CN103956284A (en) | 2014-07-30 |
| CN103956284B true 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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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2461024B (en) * | 2008-06-16 | 2012-06-13 | Converteam Technology Ltd | Fuses |
| CN101937808B (en) * | 2009-06-30 | 2012-08-15 | 浙江赛菲特电气有限公司 | Dropping type fuse |
| CN102360998B (en) * | 2011-11-03 | 2012-10-31 | 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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