CN109411286A - A kind of high voltage isolator - Google Patents
A kind of high voltage isolator Download PDFInfo
- Publication number
- CN109411286A CN109411286A CN201811572538.4A CN201811572538A CN109411286A CN 109411286 A CN109411286 A CN 109411286A CN 201811572538 A CN201811572538 A CN 201811572538A CN 109411286 A CN109411286 A CN 109411286A
- Authority
- CN
- China
- Prior art keywords
- contact arm
- fixing sleeve
- high voltage
- contact
- voltage isolator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000009434 installation Methods 0.000 claims description 24
- 238000004146 energy storage Methods 0.000 claims description 16
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 206010016256 fatigue Diseases 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/26—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
- H01H31/28—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with angularly-movable contact
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
Landscapes
- Fuses (AREA)
- Springs (AREA)
Abstract
The present invention relates to a kind of high voltage isolators, it includes chassis, the first pillar for being correspondingly arranged at chassis both ends and the second pillar, the contact arm being arranged on the first pillar by shaft and the contact being arranged on the second pillar, and the side of contact is provided with holding device in the contact arm；The contact arm includes the first contact arm and the second contact arm disposed in parallel, and the first contact arm and the second contact arm are connected in shaft；Spring of the invention uses memory spring, it automatically generates and is increased and increased deformation power with temperature, keep and reinforce the releasable trend of elastic potential, realize that the pressure being applied on contact arm remains unchanged or even reinforces, to reduce arm contacts resistance, reduce electric energy loss, temperature when contact arm operation is reduced, the generation for the safety accidents such as arm contacts are bad, the caused contact that generates heat is burnt is avoided.
Description
Technical field
The present invention relates to field of electrical equipment, specifically a kind of high voltage isolator.
Background technique
High voltage isolator is device for switching important in power plant and substation's electrical system, need to be matched with high-voltage circuitbreaker
Set uses.Disconnecting switch is suitable for three-phase alternating current 50Hz, the inside plant of voltage rating 12KV.For high-tension apparatus have voltage and
Column load is connected in the case where carrying, and cutting or conversion line are used.
The spring of the holding device of current high voltage isolator mostly uses stainless steel material, is allowed to applying external force to it
Deformation and after keeping energy storage for a long time, due to the fatigability of metal, elastic potential energy can gradually decay, and elastic force gradually weakens, and cause
Contact arm and contact disengage, and cause to have a power failure.
Summary of the invention
Technical problem to be solved by the invention is to provide the things such as power failure caused by a kind of prevent due to the fatigability of spring
Therefore the high voltage isolator occurred.
The technical scheme adopted by the invention is that: a kind of high voltage isolator comprising chassis is correspondingly arranged at chassis two
First pillar and the second pillar, the contact arm being arranged on the first pillar by shaft and the touching being arranged on the second pillar at end
Piece is provided with holding device close to the side of contact in the contact arm；The contact arm includes the first contact arm disposed in parallel and
Two contact arms, the first contact arm and the second contact arm are connected in shaft.
Holding device of the present invention includes the bolt being arranged between the first contact arm and the second contact arm and is arranged in spiral shell
The nut of bolt end, the bolt stretch out the second contact arm, memory spring, memory spring are provided between nut and the second contact arm
It covers on bolt.
The present invention is provided with the first fixing sleeve on the inside of the nut, is provided with the second fixation on the outside of the second contact arm
Set, first fixing sleeve and the second fixing sleeve be sleeved on bolt, and the memory spring setting is in the first fixing sleeve and the
Between two fixing sleeves.
The present invention is equipped with for when memory spring loses on the bolt between first fixing sleeve and the second fixing sleeve
Second contact arm top is returned to the returning device of original position when effect.
Returning device of the present invention includes the installation set being nested on bolt, is arranged in installation set with high pressure gas
Energy storage chamber, the acting chamber towards the second fixing sleeve and the piston rod that is arranged in acting chamber, the inside of the piston rod
End is in sealing contact with the inner wall of acting chamber, and baffle is provided between energy storage chamber and acting chamber, in the fixed company of the outboard end of baffle
It is connected to block, the gradually inclination upwards from inside to outside of the upper surface of the block.
The present invention is provided with through slot in the side of installation set, and mandril, one end of the mandril and work are provided in through slot
It is corresponding with block that stopper rod is fixedly connected with the other end.
Mandril of the present invention is in font, and the upper end is fixedly connected with piston rod.
The present invention is provided with door, the inner wall sealed connection of the door and acting chamber, in institute in the inner end of piston rod
It states and is provided with limited block on the side wall of acting chamber, the inside of through slot is arranged in for preventing piston rod abjection from acting in the limited block
It chamber and prevents from through slot and energy storage chamber from being formed being connected to.
The bottom end of mandril of the present invention is corresponding with the upper surface shape of block.
The present invention is provided with seal washer between the door and energy storage chamber.
The present invention is equipped with fixing sleeve in the installation set, the fixing sleeve be located at installation set and the first fixing sleeve it
Between, it is provided with screw thread at the top of fixing sleeve, the bottom of installation set is provided with threaded hole, the installation set passes through with fixing sleeve
It is threadedly coupled.
Memory spring of the present invention uses CuZnAl memory alloy spring.
The positive effect of the present invention are as follows: spring of the invention uses memory spring, automatically generates and increases and increase with temperature
Deformation power, keep and reinforce the releasable trend of elastic potential, realize that the pressure that is applied on contact arm remains unchanged or even reinforces,
To reduce arm contacts resistance, reduce electric energy loss, reduce contact arm operation when temperature, avoid arm contacts it is bad, fever
Caused contact such as burns at the generation of safety accidents.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is holding device schematic diagram of the present invention；
Fig. 3 is returning device structural schematic diagram of the present invention；
Fig. 4 is partial enlarged view at Fig. 3 A of the present invention；
Fig. 5 is fixing sleeve structural schematic diagram of the present invention；
Fig. 6 is that inventive piston bar is in compressive state schematic diagram.
In the accompanying drawings, 1- chassis, the first pillar of 2-, the second pillar of 3-, 4- contact arm, the first contact arm of 401-, 402- second are touched
Arm, 5- shaft, 7- holding device, 701- bolt, 702- nut, the first fixing sleeve of 703-, the second fixing sleeve of 704-, 705- memory
Spring, 8- returning device, 801- installation set, 802- energy storage chamber, 803- air inlet, 804- acting chamber, 805- door, 806- piston
Bar, 807- through slot, 808- mandril, 809- block, 810- baffle, 811- fixing sleeve, 812- threaded hole, 813- limited block, 814-
Seal washer, 9- contact.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment be it is illustrative, never as to the application and its application or making
Any restrictions.Based on the embodiment in the application, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall in the protection scope of this application.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
Up to the unlimited scope of the present application processed of formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each portion shown in attached drawing
The size divided not is to draw according to actual proportionate relationship.For technology, side known to person of ordinary skill in the relevant
Method and equipment may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as authorizing explanation
A part of book.In shown here and discussion all examples, any occurrence should be construed as merely illustratively, and
Not by way of limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar label
Similar terms are indicated in following attached drawing with letter, therefore, once it is defined in a certain Xiang Yi attached drawing, then subsequent attached
It does not need that it is further discussed in figure.
In the description of the present application, it is to be understood that the noun of locality such as " front, rear, top, and bottom, left and right ", " laterally, vertical,
Vertically, orientation or positional relationship indicated by level " and " top, bottom " etc. is normally based on orientation or position shown in the drawings and closes
System is merely for convenience of description the application and simplifies description, and in the absence of explanation to the contrary, these nouns of locality do not indicate that
It must have a particular orientation or be constructed and operated in a specific orientation with the device or element for implying signified, therefore cannot manage
Solution is the limitation to the application protection scope；The noun of locality " inside and outside " refers to inside and outside the profile relative to each component itself.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
In addition, it should be noted that, limiting components using the words such as " first ", " second ", it is only for be convenient for
Corresponding components are distinguished, do not have Stated otherwise such as, there is no particular meanings for above-mentioned word, therefore should not be understood as to this
Apply for the limitation of protection scope.
Embodiment 1: as shown in attached drawing 1,2, the present invention includes chassis 1, the first pillar 2 for being correspondingly arranged at 1 both ends of chassis
The contact arm 4 being arranged on the first pillar 2 with the second pillar 3, by shaft 5 and the contact 9 being arranged on the second pillar 3,
The contact arm 4 is provided with holding device close to the side of contact 9；The contact arm 4 includes the first contact arm 401 disposed in parallel and the
Two contact arms 402, the first contact arm 401 and the second contact arm 402 are connected in shaft 5；
The holding device 7 includes the bolt 701 being arranged between the first contact arm 401 and the second contact arm 402 and is arranged in spiral shell
The nut 702 of 701 end of bolt, the bolt 701 stretch out the second contact arm 402, are arranged between nut 702 and the second contact arm 402
There is memory spring 705,705 sets of memory spring on bolt 701.The memory spring 705 uses CuZnAl memory alloy spring,
The memory alloy spring can gradually increase after heated, increase the pressure to contact arm, so that contact arm be kept to connect with contact 9
Touching prevents open circuit caused by due to the elastic fatigue of spring from having a power failure.
The inside of the nut 702 is provided with the first fixing sleeve 703, the outside of the second contact arm 402 is provided with second
Fixing sleeve 704, first fixing sleeve 703 and the second fixing sleeve 704 are sleeved on bolt 701, and the memory spring 705 is set
It sets between the first fixing sleeve 703 and the second fixing sleeve 704.
Embodiment 2: since memory spring may also can have the case where failure, memory spring fails and causes in order to prevent
Open circuit conditions, the present embodiment is nested with useful on the bolt 701 between first fixing sleeve 703 and the second fixing sleeve 704
In the returning device that the second contact arm 402 is pushed up back to original position when memory spring 705 fails.When memory spring 705 fails, the
When two contact arms 402 are displaced outwardly, returning device is triggered, again holds out against the second contact arm 402.
Whole technical solutions of the present embodiment as shown in figures 1-6, including chassis 1, are correspondingly arranged at the of 1 both ends of chassis
One pillar 2 and the second pillar 3, the contact arm 4 being arranged on the first pillar 2 by shaft 5 and the touching being arranged on the second pillar 3
Piece 9 is provided with holding device close to the side of contact 9 in the contact arm 4；The contact arm 4 includes the first contact arm disposed in parallel
401 and second contact arm 402, the first contact arm 401 and the second contact arm 402 are connected in shaft 5；
The holding device 7 includes the bolt 701 being arranged between the first contact arm 401 and the second contact arm 402 and is arranged in spiral shell
The nut 702 of 701 end of bolt, the bolt 701 stretch out the second contact arm 402, are arranged between nut 702 and the second contact arm 402
There is memory spring 705,705 sets of memory spring on bolt 701.The memory spring 705 uses CuZnAl memory alloy spring,
The memory alloy spring can gradually increase after heated, increase the pressure to contact arm, so that contact arm be kept to connect with contact 9
Touching prevents open circuit caused by due to the elastic fatigue of spring from having a power failure.
The inside of the nut 702 is provided with the first fixing sleeve 703, the outside of the second contact arm 402 is provided with second
Fixing sleeve 704, first fixing sleeve 703 and the second fixing sleeve 704 are sleeved on bolt 701, and the memory spring 705 is set
It sets between the first fixing sleeve 703 and the second fixing sleeve 704.
The returning device includes the installation set 801 being nested on bolt 701, is arranged in installation set 801 with high pressure
The energy storage chamber 802 of gas, the acting chamber 804 of the second fixing sleeve 704 of direction and the piston rod being arranged in acting chamber 804
806, the inner end of the piston rod 806 and the inner wall of acting chamber 804 are in sealing contact, between energy storage chamber 802 and acting chamber 804
It is provided with baffle 810, is fixedly connected with block 809 in the outboard end of baffle 810, the upper surface of the block 809 is from inside to outside
Gradually inclination upwards；It is provided with air inlet 803 in energy storage chamber 802, should also have check valve on air inlet 803, to accumulation of energy
After chamber 802 is filled with gas, its leakage is prevented.
The side of installation set 801 is provided with through slot 807, mandril 808 is provided in through slot 807, the mandril 808
It is corresponding with block 809 that one end with piston rod 806 is fixedly connected with the other end.
The mandril 808 is in 7 fonts, and the upper end is fixedly connected with piston rod 806.
The inner end of piston rod 806 is provided with door 805, the inner wall of the door 805 and acting chamber 804 seals company
It connects, limited block 813 is provided on the side wall of the acting chamber 804, the inside that through slot 807 is arranged in the limited block 813 is used
In preventing piston rod 806 from deviating from acting chamber 804 and the formation of through slot 807 and energy storage chamber 802 prevented to be connected to, the mandril 808
Bottom end is corresponding with the upper surface shape of block 809.
When the second contact arm is displaced outwardly, the side for pushing piston rod 806 to close second fixing sleeve 703 is mobile, so that
Mandril 808 is contacted with block 809, and block 809 is displaced outwardly, and baffle 810 is opened, and energy storage chamber 802 is connected to acting chamber 804,
Piston rod 806 is released again under the action of compressed air, the second contact arm is compressed, breaking appearance is effectively prevent.
In order to improve the leakproofness of door 805, gas leakage is prevented, in the door 805 and energy storage chamber 802 and acting chamber 804
Between be arranged and have seal washer 814.
Further, the maloperation in maintenance process in order to prevent, so that returning device is triggered, in the installation set 801
On fixing sleeve 811 is installed, the fixing sleeve 811 is located between installation set 801 and the first fixing sleeve 703, in fixing sleeve 811
Top is provided with screw thread, the bottom of installation set 801 is provided with threaded hole 812, the installation set 801 passes through with fixing sleeve 811
It is threadedly coupled.Fixing sleeve 811 can be fixedly mounted on the first fixing sleeve 703, by the helicitic texture, adjustable installation set
801 and the second spacing between fixing sleeve 704 tune up the gap when maintenance, so that there is bigger operating space, prevent from missing
It operates and triggers returning device.And at work, the spacing between appropriate adjustment installation set 801 and the second fixing sleeve 704 can be with
It realizes when memory spring fails and the second contact arm of appearance starts inclination outward, even if triggering returning device, is held out against, prevented
The situation for short circuit occur occurs.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to previous embodiment
Documented technical solution is modified or equivalent replacement of some of the technical features；And these are modified or replace
It changes, the spirit and scope for technical solution of the embodiment of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of high voltage isolator, it is characterised in that it includes chassis (1), is correspondingly arranged at first of chassis (1) both ends
Column (2) and the second pillar (3) pass through contact arm (4) and be arranged in the second pillar that shaft (5) are arranged on the first pillar (2)
(3) contact (9) on is provided with holding device close to the side of contact (9) in the contact arm (4)；The contact arm (4) includes flat
The first contact arm (401) and the second contact arm (402) of row setting, the first contact arm (401) and the second contact arm (402) are connected to shaft
(5) on；
The holding device includes the bolt (701) being arranged between the first contact arm (401) and the second contact arm (402) and setting
Nut (702) in bolt (701) end, the bolt (701) stretch out the second contact arm (402), in nut (702) and the second touching
It is provided between arm (402) memory spring (705), memory spring (705) covers on bolt (701).
2. a kind of high voltage isolator according to claim 1, it is characterised in that be arranged in the inside of the nut (702)
There is the first fixing sleeve (703), be provided with the second fixing sleeve (704) on the outside of the second contact arm (402), first fixing sleeve
(703) it is sleeved on bolt (701) with the second fixing sleeve (704), the memory spring (705) is arranged in the first fixing sleeve
(703) between the second fixing sleeve (704).
3. a kind of high voltage isolator according to claim 2, it is characterised in that in first fixing sleeve (703) and the
It is equipped with and is used for the second contact arm (402) when memory spring (705) failure on bolt (701) between two fixing sleeves (704)
Push up back the returning device of original position.
4. a kind of high voltage isolator according to claim 3, it is characterised in that the returning device includes being nested in spiral shell
Energy storage chamber (802) in installation set (801) with high pressure gas of installation set (801) on bolt (701), setting, towards the
The acting chamber (804) of two fixing sleeves (704) and the piston rod (806) being arranged in acting chamber (804), the piston rod
(806) inner wall of inner end and acting chamber (804) is in sealing contact, is provided between energy storage chamber (802) and acting chamber (804)
Baffle (810) is fixedly connected with block (809) in the outboard end of baffle (810), and the upper surface of the block (809) is by introversion
Gradually inclination upwards outside；
The side of installation set (801) is provided with through slot (807), is provided with mandril (808), the mandril in through slot (807)
(808) it is corresponding with block (809) that one end with piston rod (806) is fixedly connected with the other end.
5. a kind of high voltage isolator according to claim 4, it is characterised in that the mandril (808) is in 7 fonts, thereon
End is fixedly connected with piston rod (806).
6. a kind of high voltage isolator according to claim 4, it is characterised in that be arranged in the inner end of piston rod (806)
Have door (805), the inner wall of the door (805) and acting chamber (804) is tightly connected, the side wall in the acting chamber (804)
On be provided with limited block (813), the limited block (813) setting is in the inside of through slot (807) for preventing piston rod (806) de-
It acting chamber (804) and prevents from through slot (807) and energy storage chamber (802) from being formed being connected to out.
7. a kind of high voltage isolator according to claim 4 or 5, it is characterised in that the bottom end of the mandril (808) with
The upper surface shape of block (809) is corresponding.
8. a kind of high voltage isolator according to claim 4, it is characterised in that in the door (805) and energy storage chamber
(802) seal washer (814) are provided between.
9. a kind of high voltage isolator according to claim 4, it is characterised in that be equipped on the installation set (801)
Fixing sleeve (811), the fixing sleeve (811) is located between installation set (801) and the first fixing sleeve (703), in fixing sleeve (811)
Top be provided with screw thread, be provided with threaded hole (812) in the bottom of installation set (801), the installation set (801) and fixing sleeve
(811) it is connected through a screw thread.
10. a kind of high voltage isolator according to claim 1, it is characterised in that the memory spring (705) uses
CuZnAl memory alloy spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811572538.4A CN109411286B (en) | 2018-12-21 | 2018-12-21 | High-voltage isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811572538.4A CN109411286B (en) | 2018-12-21 | 2018-12-21 | High-voltage isolating switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109411286A true CN109411286A (en) | 2019-03-01 |
| CN109411286B CN109411286B (en) | 2023-08-18 |
Family
ID=65461146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811572538.4A Active CN109411286B (en) | 2018-12-21 | 2018-12-21 | High-voltage isolating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109411286B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115299857A (en) * | 2021-05-08 | 2022-11-08 | 国网河北省电力有限公司枣强县供电分公司 | Endoscope detection mirror capable of being operated in electrified mode |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4414449A (en) * | 1981-05-26 | 1983-11-08 | Brown Boveri Electric Inc. | Quick open and close disconnect switch |
| DE3237966A1 (en) * | 1982-10-13 | 1984-04-19 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | High-voltage isolating switch, especially a single-column isolating switch for large short-circuit currents |
| DE4015979A1 (en) * | 1990-05-18 | 1991-11-21 | Sachsenwerk Ag | Switch combination esp. for transformers on ring mains - incorporates vacuum switch which cannot be closed is load isolator with energy store is already engaged |
| CN101514946A (en) * | 2009-03-27 | 2009-08-26 | 同济大学 | System for testing time property of shape memory alloy spring |
| US20110248802A1 (en) * | 2010-04-13 | 2011-10-13 | Siemens Aktiengesellschaft | Switch, In Particular Load Breaking Switch |
| CN202405163U (en) * | 2011-12-18 | 2012-08-29 | 蒋岑 | High-pressure disconnection switch |
| CN204289200U (en) * | 2014-12-01 | 2015-04-22 | 国家电网公司 | Adopt the 10-35 kilovolt high pressure New Type Isolating Switch of memory alloy spring |
| CN105225879A (en) * | 2015-04-29 | 2016-01-06 | 苏州西脉记忆合金有限公司 | A kind of isolating switch intelligence contact |
| CN106952773A (en) * | 2017-04-30 | 2017-07-14 | 国网江苏省电力公司职业技能训练基地 | A kind of high-tension line disconnecting switch |
| CN108054047A (en) * | 2018-01-12 | 2018-05-18 | 国家电网公司 | A kind of Intelligent isolation switch |
-
2018
- 2018-12-21 CN CN201811572538.4A patent/CN109411286B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4414449A (en) * | 1981-05-26 | 1983-11-08 | Brown Boveri Electric Inc. | Quick open and close disconnect switch |
| DE3237966A1 (en) * | 1982-10-13 | 1984-04-19 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | High-voltage isolating switch, especially a single-column isolating switch for large short-circuit currents |
| DE4015979A1 (en) * | 1990-05-18 | 1991-11-21 | Sachsenwerk Ag | Switch combination esp. for transformers on ring mains - incorporates vacuum switch which cannot be closed is load isolator with energy store is already engaged |
| CN101514946A (en) * | 2009-03-27 | 2009-08-26 | 同济大学 | System for testing time property of shape memory alloy spring |
| US20110248802A1 (en) * | 2010-04-13 | 2011-10-13 | Siemens Aktiengesellschaft | Switch, In Particular Load Breaking Switch |
| CN202405163U (en) * | 2011-12-18 | 2012-08-29 | 蒋岑 | High-pressure disconnection switch |
| CN204289200U (en) * | 2014-12-01 | 2015-04-22 | 国家电网公司 | Adopt the 10-35 kilovolt high pressure New Type Isolating Switch of memory alloy spring |
| CN105225879A (en) * | 2015-04-29 | 2016-01-06 | 苏州西脉记忆合金有限公司 | A kind of isolating switch intelligence contact |
| CN106952773A (en) * | 2017-04-30 | 2017-07-14 | 国网江苏省电力公司职业技能训练基地 | A kind of high-tension line disconnecting switch |
| CN108054047A (en) * | 2018-01-12 | 2018-05-18 | 国家电网公司 | A kind of Intelligent isolation switch |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115299857A (en) * | 2021-05-08 | 2022-11-08 | 国网河北省电力有限公司枣强县供电分公司 | Endoscope detection mirror capable of being operated in electrified mode |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109411286B (en) | 2023-08-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109038461B (en) | Stable mounting base for lightning arrester | |
| CN109411286A (en) | A kind of high voltage isolator | |
| CN209401549U (en) | A kind of high voltage isolator | |
| CN101958518A (en) | Irregularly-shaped cross arm shielding cover | |
| CN209516425U (en) | A kind of low-voltage distribution cabinet with interior protective device | |
| CN217983175U (en) | Low-voltage fusing type isolating switch with reliable closing | |
| CN105280451A (en) | Current-limiting fuse used for protecting ozone high-frequency discharge unit | |
| CN109599295A (en) | A kind of vacuum interrupter with oily buffer-type bellows | |
| CN207320034U (en) | A kind of protective device of SPD Surge Protectors tripping mechanism | |
| CN108511305A (en) | A kind of fuser-controlling apparatus | |
| CN214379981U (en) | Wind deflection preventing device for power transmission line | |
| CN109687306B (en) | Be suitable for explosion-proof cubical switchboard of self-bleeding | |
| CN206194565U (en) | Circuit breaker buffer | |
| CN109243908B (en) | Outdoor high-voltage sulfur hexafluoride circuit breaker | |
| CN206877892U (en) | A kind of disconnecting switch | |
| CN113823466A (en) | Insulator transformation arc-extinguishing device for dealing with insulation matching failure | |
| CN201340944Y (en) | Cable plug connector | |
| CN214672223U (en) | Pressure-sensitive circuit breaker protector for medium-voltage capacitor | |
| CN206907706U (en) | A kind of Insulating A High-Voltage on-load switch | |
| CN217061627U (en) | Lightning protection device convenient to installation and dismantlement | |
| CN208923019U (en) | A kind of fuser-controlling apparatus | |
| CN206907703U (en) | A kind of high voltage load switch containing insulation framework | |
| CN221352683U (en) | Windproof drop-out fuse | |
| CN206907702U (en) | A kind of on-load switch of resistance to arc high pressure | |
| CN209199833U (en) | A kind of arc-chutes with breakage-proof functions |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |