CN109378247A - A 10kV anti-misclose isolating switch lock - Google Patents
A 10kV anti-misclose isolating switch lock Download PDFInfo
- Publication number
- CN109378247A CN109378247A CN201811569250.1A CN201811569250A CN109378247A CN 109378247 A CN109378247 A CN 109378247A CN 201811569250 A CN201811569250 A CN 201811569250A CN 109378247 A CN109378247 A CN 109378247A
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- Prior art keywords
- rod
- screw
- threaded
- misconnection
- head
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Classifications
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- 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
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Distribution Board (AREA)
Abstract
本发明公开了一种10kV防误合隔离开关锁，包括旋紧螺杆、卡接在旋紧螺杆中部的固定套筒、螺纹连接在旋紧螺杆上部的上部套筒、螺纹连接在固定套筒侧部的下桩头以及螺纹连接在上部套筒侧部的上桩头；旋紧螺杆下部活动连接在拉杆上端。利用本发明限制了对动触头操作，在合隔离开关程序上多了一道锁，确保动触头与地面垂直和对静触头最大的电气安全距离。使用普通拉杆操作，结构简单，性能可靠，拆装方便。
The invention discloses a 10kV anti-misconnection isolating switch lock, which comprises a screw screw, a fixing sleeve clamped in the middle of the screw screw, an upper sleeve screwed on the upper part of the screw screw, and screwed on the side of the fixing sleeve The lower pile head of the upper sleeve and the upper pile head threadedly connected to the side of the upper sleeve; the lower part of the tightening screw is movably connected to the upper end of the tie rod. The invention restricts the operation of the moving contact, and adds a lock to the disconnecting switch procedure to ensure that the moving contact is perpendicular to the ground and the maximum electrical safety distance to the static contact. It is operated by ordinary pull rod, with simple structure, reliable performance and convenient disassembly and assembly.
Description
Technical field
The present invention relates to power distribution network electrical equipment technical fields, and in particular to a kind of 10kV anti-misconnection, which is kept apart, to be shut.
Background technique
Disconnecting switch is that one kind is mainly used for " isolated power supply, grid switching operation, to be connected to and cut off low current circuit ", nothing
The switching device of arc-suppression function.Disconnecting switch has the insulation distance for meeting prescribed requirement and apparent when quartile is set between contact
Disconnect mark；When coincidence is set, electric current under normal loop condition can be carried and exceptional condition is (such as short at the appointed time
Road) under electric current switchgear.It is typically used as high voltage isolator, i.e., voltage rating is in the disconnecting switch of 1kV or more, it is originally
The principles and structure of body is fairly simple, but since usage amount is big, functional reliability require it is high, to electric substation, power plant
Design, the influence established and be safely operated are larger.Disconnecting switch is mainly characterized by no arc extinguishing ability, can only be in no load
Divide in the case where electric current, close circuit.
Disconnecting switch plays an important role in distribution network construction maintenance process:
1, after separating brake, reliable clearance for insulation is established, the equipment or route and one obvious cut-off point of power supply that will need to overhaul
It separates, to guarantee the safety of service personnel and equipment.
2, according to operation needs, changing-over route.
3, it can be used to point, the low current in zygonema road, such as the charging current of casing, bus, connector, stub cable, switch
The capacitance current of equalizing capacitance, circulation and the exciting current of voltage transformer when double-bus changing-over etc..
4, it according to the concrete condition of different types of structure, can be used to point, the open-circuit excitation electric current of unification constant volume transformer.
Disconnecting switch is primarily adapted for use in the low voltage terminals distribution system such as private residence, building in low-voltage equipment.Major function: no
On-load disjunction with connect route.
1. being used for isolated power supply, high pressure repair apparatus and charging equipment are disconnected, make to have therebetween one obviously can be seen that it is disconnected
It prescribes.
2. disconnecting switch and breaker cooperate, need to carry out grid switching operation by system operation mode, to change system fortune
The row mode of connection.
3. to be switched on or switched off low current circuit.
One group of disconnecting switch is respectively installed in two faces generally before and after breaker, purpose be by breaker and isolated from power,
Form obvious cut-off point；Because breaker originally, using oil-break, oil-break needs often maintenance, therefore two sides are just
There is obvious cut-off point, in favor of maintenance；Under normal circumstances, outgoing line cabinet is powered downwards from bus above by switchgear,
It is to want and isolated from power, but sometimes, also have the possibility of incoming call behind breaker, such as that one group of disconnecting switch is needed before breaker
Counter by other loops is sent, counter the sending of the devices such as capacitor, therefore one group of disconnecting switch is also required to behind breaker.
Disconnecting switch is mainly used to the part that will need to have a power failure in high voltage distribution installation and is reliably isolated with live part, with
Guarantee the safety of service work.The contact of disconnecting switch is all open to have apparent cut-off point in air, and disconnecting switch does not have
There is arc-control device, therefore cannot be used to cut off load current or short circuit current, otherwise under high pressure effect, cut-off point will generate strong
Strong electric arc, and it is difficult self-extinguish, in some instances it may even be possible to arcing (relatively or phase fault) is caused, scaling loss equipment jeopardizes personal peace
Entirely, here it is the major accidents of so-called " on-load drawing disconnecting switch ".Disconnecting switch can also be used to carry out cutting for certain circuits
Operation is changed, to change the method for operation of system.Such as: it, can be with disconnecting switch by running circuit in double-bus circuit
It is switched on another bus from a bus.It is also possible to be used to operate the circuit of some low currents.
In maintenance of electrical equipment, an electrical separation is provided, and is one and is evident that cut-off point, to ensure
The personal safety of maintenance personnel.Disconnecting switch is unable to on-load operation: not energy band rated load or big load operation, Bu Nengfen,
Load current and short circuit current are closed, but has can operating with Smaller load and nonloaded line for arc-chutes.When general power transmission operation:
Disconnecting switch is first closed, it is rear to close breaker or load class switch；When power operation: first cut-off breaker or load class switch, it is rear disconnected
Open disconnecting switch.It is identical with other electrical equipments when selection, voltage rating, rated current, dynamic current, thermostabilization electricity
Stream etc. all has to comply with the needs of use occasion.The effect of disconnecting switch is to disconnect the circuit of zero load electric current to make to be overhauled
Equipment and power supply have apparent cut-off point, to guarantee that the safety of service personnel, disconnecting switch do not have special arc-control device cannot
Load current and short circuit current are cut off, so must can just open in circuit in the case where breaker disconnecting circuit with operation isolation
It closes.
By the difference of voltage class, keep apart extension and be divided into low voltage isolation switch and high voltage isolator, by disconnecting switch control
Wiring processed and respective circuit breakers are latched, and on-load can be effectively prevented and draw, close disconnecting switch.But keep apart in operation bus bar side
In pass and line side disconnecting switch, due to artificial origin, it is possible to cause operation order reverse, this is switch, switch operation original
It is then not permitted and one of the reason of cause the accident in electric system.To prevent isolator operation reversed order, to not having
It using the anti-error factory of procedure lock, stands, currently, isolator operation is all made of common insulated pull rod, distribution line interruption maintenance is high
Pressure disconnecting switch pull open after, the moving contact of switch is generally not charged, pull open rear moving contact downwards and answer it is perpendicular to the ground, with stationary contact
Head keeps maximum operating distance.The electric blocking measure of anti-misconnection, the moving contact of switch is not configured in distribution line disconnecting switch
There is no reliable anti-misconnection technical measures, in the case where strong wind, thick fog and artificial erroneous judgement maloperation, as line switching does not break
It opens, it is possible to the security risk by the anti-power transmission of high voltage isolator to interruption maintenance route occur, as distribution line contact is opened
Maintenance is closed, carries out two sides disconnecting switch once occurring accidentally to close, will lead to repair apparatus and send a telegram here suddenly, there are security risks.
Summary of the invention
Keep apart the object of the present invention is to provide a kind of 10kV anti-misconnection highly-safe, easy to operate and shuts.
To achieve the goals above, the technical solution adopted by the present invention is as follows:
A kind of 10kV anti-misconnection, which is kept apart, to be shut, including screw screw rod, be connected to screw fixes sleeve in the middle part of screw rod, screw thread connects
It connects and is screwing the upper sleeve on screw rod top, is threaded in the lower pile crown of fixes sleeve side and is being threaded in top set
The upper pile crown of cylinder side；
The screw rod lower removable that screws is connected to pull rod upper end.
As a further improvement of the present invention, described to screw the connector that screw rod includes, the T-type for being provided with connection cephalic region
Groove, the clip-connecting rod being fixed at the top of connector and the threaded rod being fixed at the top of clip-connecting rod；The connector, clip-connecting rod and
Threaded rod is integrally formed.
As a further improvement of the present invention, the groove includes the perpendicular groove and cross recess for being provided with connection cephalic region,
The perpendicular groove is connected with cross recess；
The pull rod include fixing seat, the insulating bar for being fixedly connected on fixing seat bottom and be fixedly connected at the top of fixing seat fall
L shape head；
The vertical bar of the inverted L-shaped head is connected in perpendicular groove, and the cross bar of the inverted L-shaped head is located in cross recess.
As a further improvement of the present invention, the perpendicular groove width of rebate is less than inverted L-shaped head diameter, the perpendicular groove
Internal slot bottom width is greater than inverted L-shaped head diameter, and the cross recess groove width is greater than inverted L-shaped head diameter.
As a further improvement of the present invention, the fixes sleeve includes the fixes sleeve ontology being fastened on the outside of clip-connecting rod
With the threaded hole for being provided with fixes sleeve body side.
As a further improvement of the present invention, the upper sleeve includes the upper sleeve sheet being threaded on threaded rod
Body and the threaded connection hole for being provided with upper sleeve body side, are provided on the upper sleeve ontology inner sidewall and threaded rod
The interior connection screw thread that screw thread matches.
As a further improvement of the present invention, lower pile head includes lower pile crown ontology and is fixed on lower pile crown body end
The bar that is screwed, the bar that is screwed is threadedly coupled with threaded hole.
As a further improvement of the present invention, upper pile head includes upper pile crown ontology and is fixed on pile crown body end
Whorl brace rod, the whorl brace rod is threadedly coupled with threaded connection hole.
As a further improvement of the present invention, described to screw screw rod, fixes sleeve, lower pile crown, upper sleeve and upper pile crown
It is all made of the production of insulating materials nylon material.
As a further improvement of the present invention, the insulating materials nylon material is polyamide PA66 material.
Compared with prior art, obtained by the present invention to have the beneficial effect that:
Structure of the invention is reasonable, easy to use, and 10kV anti-misconnection, which is kept apart, to be shut, using the nylon polyamide of excellent insulation performance
PA66 processing and fabricating is tightened principle using screw rod and screw socket, with pull rod that achievement is easily solid using operator when installation
Be scheduled on disconnecting switch moving contact be isolated between wire clamp, play anti-misconnection, limitation disconnecting switch moving contact position, prevent from misdelivering
The effect of electricity.The anti-power transmission of 10kV disconnecting switch is accidentally closed to the repair line having a power failure to prevent from judging by accident in strong wind, thick fog environment and personnel
The device is tightened by road using common insulated pull rod pull rod, limits the moving contact operation of disconnecting switch, playing prevents from missing
The purpose of conjunction is a kind of technical safety measures for effectively preventing disconnecting switch from accidentally closing.Using present invention limits to moving contact
Operation, it is more on closing disconnecting switch program to lock together.Ensure that moving contact is perpendicular to the ground and to the maximum electrical peace of static contact
Full distance.It is operated using common pull rod, structure is simple, reliable performance, convenient for disassembly and assembly.
Detailed description of the invention
Attached drawing 1 is structural schematic diagram of the invention；
Attached drawing 2 is the structural schematic diagram that the present invention screws screw rod；
Attached drawing 3 is the structural schematic diagram of pull rod of the present invention；
Attached drawing 4 is the structural schematic diagram of fixes sleeve of the present invention；
Attached drawing 5 is the structural schematic diagram of pile crown under the present invention；
Attached drawing 6 is the structural schematic diagram of upper sleeve of the present invention；
Attached drawing 7 is the structural schematic diagram of pile crown in the present invention.
In attached drawing: 1 screw screw rod, 11 connectors, 12 clip-connecting rods, 13 threaded rods, 14 cross recess, 15 perpendicular grooves, 2 pull rods,
Under 21 insulating bars, 22 fixing seats, 23 inverted L-shaped heads, 3 fixes sleeves, 31 fixes sleeve ontologies, 32 threaded holes, 4 lower pile crowns, 41
Pile crown ontology, 42 be screwed bar, 5 upper sleeves, 51 upper sleeve ontologies, connection screw thread in 52,53 threaded connection holes, on 6
Pile crown, pile crown ontology, 62 whorl brace rods on 61.
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.
As described in attached drawing 1-7, a kind of 10kV anti-misconnection, which is kept apart, to be shut, including is screwed screw rod 1, is connected to and screws screw rod 1
The fixes sleeve 3 at middle part is threaded in and screws the upper sleeve 5 on 1 top of screw rod, is threaded in 3 side of fixes sleeve
Lower pile crown 4 and the upper pile crown 6 for being threaded in 5 side of upper sleeve；1 lower removable of screw rod that screws is connected to pull rod 2
Upper end.The T-type groove for screwing connector 11 that screw rod 1 includes, being provided with 11 side of connector is fixed on the top of connector 11
The clip-connecting rod 12 in portion and the threaded rod 13 for being fixed on 12 top of clip-connecting rod；The connector 11, clip-connecting rod 12 and threaded rod 13
It is integrally formed.The groove includes the perpendicular groove 15 and cross recess 14 for being provided with 11 side of connector, perpendicular 15 He of groove
Cross recess 14 are connected；The pull rod 2 includes fixing seat 22, the insulating bar 21 for being fixedly connected on 22 bottom of fixing seat and fixed company
Connect the inverted L-shaped head 23 at 22 top of fixing seat；The vertical bar of the inverted L-shaped head 23 is connected in perpendicular groove 15, the inverted L-shaped
The cross bar of head 23 is located in cross recess 14.
15 width of rebate of perpendicular groove is less than 23 diameter of inverted L-shaped head, and the perpendicular 15 inside slot bottom width of groove is greater than
23 diameter of inverted L-shaped head, 14 groove width of cross recess are greater than 23 diameter of inverted L-shaped head.The fixes sleeve 3 includes being fastened in card
It connects the fixes sleeve ontology 31 in 12 outside of column and is provided with the threaded hole 12 of 31 side of fixes sleeve ontology.
The upper sleeve 5 includes the upper sleeve ontology 51 being threaded on threaded rod 13 and is provided with upper sleeve
The threaded connection hole 53 of 51 side of ontology is provided on 51 inner sidewall of upper sleeve ontology and matches with 13 screw thread of threaded rod
Interior connection screw thread 52.
Lower pile head 4 includes lower pile crown ontology 41 and the bar 42 that is screwed for being fixed on lower 41 end of pile crown ontology, institute
The bar 42 that is screwed is stated to be threadedly coupled with threaded hole 12.Upper pile head 6 includes upper pile crown ontology 61 and is fixed on pile crown sheet
The whorl brace rod 62 of 61 end of body, the whorl brace rod 62 are threadedly coupled with threaded connection hole 53.
Screw rod 1, fixes sleeve 3, lower pile crown 4, upper sleeve 5 and the upper pile crown 6 of screwing is all made of insulating materials nylon
Material production.The insulating materials nylon material is polyamide PA66 material.
Specifically, the material that the present invention screws screw rod 1, fixes sleeve 3, lower pile crown 4, upper sleeve 5 and upper pile crown 6 selects
The production of insulating materials nylon rod is selected, it is specific to select polyamide PA66 material, according to live line work insulating Work tool testing standard,
The present invention is segmented into pressure-resistant electrical test of insulating, test voltage becomes in 100kV/1 minutes, 45kV/1 minutes, no overheat
Shape, breakdown, the indices such as leakage current meet safety standard.
It screws between screw rod 1 and upper sleeve 5, fixes sleeve 3 and lower pile crown 4 and upper sleeve 5 and upper pile crown 6 all
It is connected using screw socket, there is very strong stability.
The structure size for screwing screw rod 1 be 35 × 200 or 25 × 200, be suitable for disconnecting switch moving contact with every
Minimal openings are 350mm, maximum open 450mm between offline folder.
The threaded rod 13, threaded hole 32, internal screw thread 33, the bar 42 that is screwed, interior connection screw thread 52, threaded connection hole 53
Screw thread with whorl brace rod 62 is the long screw thread that machining accuracy is level Four, and processing technology and control specification are according to national metal
The related standard of workpiece executes.
10kV anti-misconnection, which is kept apart, to be shut using step:
Disconnecting switch is pulled open first, keeps moving contact perpendicular to the ground.
Anti-misconnection is kept apart to shut and is completed as required, specific requirement is upper and lower pile crown in same direction, above and below
The distance of pile crown by actual use disconnecting switch moving contact pull ring at disconnecting switch electrical connection at a distance from it is consistent.
It is good into the groove card screwed below screw rod 1 the inverted L-shaped head of tie rod end.
Anti-misconnection is kept apart at the disconnecting switch for shutting and sending and being pulled open to route with pull rod, upper pile crown 6 rides over disconnecting switch
At electrical connection, lower pile crown 4 enters in the pull ring of moving contact.
Pull rod is rotated clockwise, anti-misconnection is made to keep apart to shut and lock disconnecting switch, anti-misconnection is torn open and keeps apart and shut then
Rotate counterclockwise pull rod.
Anti-misconnection is kept apart shut use before to carry out visual examination, flawless is not damaged, forbids anti-using what is damaged
It accidentally closes to keep apart and shut；
Anti-misconnection, which is kept apart, shuts preventive trial of half a year progress, guarantees that its electric property and mechanical performance are intact, must not
Kept apart using the anti-misconnection not within the test period and is shut.
10kV anti-misconnection, which is kept apart, to be shut, and by field application, demonstrates, the reliable performance simple at fruit structure, operation
Flexibly, the present invention is low in cost, and 300 yuan of 600 yuan+test adjustment of 400 yuan+processing and fabricating of nylon rod 1300 yuan total, is suitble to
In 10kV power distribution network interruption maintenance operation, prevents disconnecting switch from accidentally closing anti-power transmission and promoted and applied into maintenance line work.
The reasonable switch lock of 10kV anti-misconnection, screws self-lock mechanism using screw rod, limits the operation of switch movable contact, close every
It is more from switching programme to lock together, effectively prevented anti-power transmission caused by accidentally combination switch to dead line security risk.
The configuration of the present invention is simple is reasonable, electrical insulation properties are reliable, charge and discharge operations are easy flexibly, can be completed using common brake pull-rod.
Popularization and application of the invention, economic benefit are huge.
Embodiment described above is merely a preferred embodiment of the present invention, and the simultaneously exhaustion of the feasible implementation of non-present invention.It is right
For persons skilled in the art, any aobvious to made by it under the premise of without departing substantially from the principle of the invention and spirit and
The change being clear to should be all contemplated as falling within claims of the invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811569250.1A CN109378247B (en) | 2018-12-21 | 2018-12-21 | A 10kV anti-misclosure isolation switch lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811569250.1A CN109378247B (en) | 2018-12-21 | 2018-12-21 | A 10kV anti-misclosure isolation switch lock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109378247A true CN109378247A (en) | 2019-02-22 |
| CN109378247B CN109378247B (en) | 2023-11-14 |
Family
ID=65371023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811569250.1A Active CN109378247B (en) | 2018-12-21 | 2018-12-21 | A 10kV anti-misclosure isolation switch lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109378247B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112234493A (en) * | 2020-10-29 | 2021-01-15 | 国网山东省电力公司威海供电公司 | A simple locking device for static contact isolation baffle of 10kV switchgear |
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| US20060049144A1 (en) * | 2004-09-07 | 2006-03-09 | Vei Power Distribution S.P.A. | Switch and disconnector apparatus for electric substations |
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| CN201440393U (en) * | 2009-06-11 | 2010-04-21 | 宁波电业局 | 110KV positive-negative isolating switch mechanical mistake-prevention locking device |
| JP2010154630A (en) * | 2008-12-25 | 2010-07-08 | Chugoku Electric Power Co Inc:The | Gas insulated switch device |
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| CN106298347A (en) * | 2016-09-22 | 2017-01-04 | 成都迅德科技有限公司 | A kind of heavy current disconnecting switches |
| CN205881738U (en) * | 2016-06-29 | 2017-01-11 | 浙江谷元电力科技有限公司 | Isolator interlock of maloperation is prevented to circuit breaker |
| CN107546062A (en) * | 2017-09-21 | 2018-01-05 | 江苏南瑞帕威尔电气有限公司 | A kind of ZW20 disconnecting switch |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060049144A1 (en) * | 2004-09-07 | 2006-03-09 | Vei Power Distribution S.P.A. | Switch and disconnector apparatus for electric substations |
| AU2006100852A4 (en) * | 2006-09-22 | 2006-11-09 | Ak Power Solutions Pty Ltd | Dual-lock hookstick operator for outdoor switchgear |
| JP2010154630A (en) * | 2008-12-25 | 2010-07-08 | Chugoku Electric Power Co Inc:The | Gas insulated switch device |
| CN201440393U (en) * | 2009-06-11 | 2010-04-21 | 宁波电业局 | 110KV positive-negative isolating switch mechanical mistake-prevention locking device |
| US20150021298A1 (en) * | 2013-07-19 | 2015-01-22 | Hitachi, Ltd. | Switchgear |
| CN205881738U (en) * | 2016-06-29 | 2017-01-11 | 浙江谷元电力科技有限公司 | Isolator interlock of maloperation is prevented to circuit breaker |
| CN106298347A (en) * | 2016-09-22 | 2017-01-04 | 成都迅德科技有限公司 | A kind of heavy current disconnecting switches |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112234493A (en) * | 2020-10-29 | 2021-01-15 | 国网山东省电力公司威海供电公司 | A simple locking device for static contact isolation baffle of 10kV switchgear |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109378247B (en) | 2023-11-14 |
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