CN103065856A - 27.5KV indoor integration electric isolating switch - Google Patents
27.5KV indoor integration electric isolating switch Download PDFInfo
- Publication number
- CN103065856A CN103065856A CN2012105644947A CN201210564494A CN103065856A CN 103065856 A CN103065856 A CN 103065856A CN 2012105644947 A CN2012105644947 A CN 2012105644947A CN 201210564494 A CN201210564494 A CN 201210564494A CN 103065856 A CN103065856 A CN 103065856A
- Authority
- CN
- China
- Prior art keywords
- assembly
- isolating switch
- screw
- indoor
- contact component
- 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.)
- Pending
Links
Images
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention provides a 27.5KV indoor integration electric isolating switch which is indoor in-cabinet general type high-voltage electrical apparatus. The 27.5KV indoor integration electric isolating switch is used for switching and isolating a circuit when an alternate current electrified railway high-voltage power transmission and transformation system has voltage and does not have load. The 27.5KV indoor integration electric isolating switch comprises a CJ3 type indoor small electric operating mechanism and a GN2-27.5 type indoor high-voltage isolating switch body. The isolating switch body mainly comprises a conductive part, an insulator part and a switch base. A transmission system and a switch of the operating mechanism form a whole. The 27.5KV indoor integration electric isolating switch has the advantages that the isolating switch is independent from a control cabinet and is connected with the cabinet through a cable, the operating mechanism is provided with an insulating operation bar, on-site manual operation and on-site electric operation can be achieved, and remote-control electric operation can be achieved.
Description
Technical field
The present invention relates to the indoor integrated electric isolating switch of a kind of rated voltage 27.5kV, conversion, buffer circuit when having voltage zero load for ac electrified railway high voltage power transmission and transforming system.
Background technology
Along with the fast development of China's electric railway, the professional electric equipment that needs is increasing, and isolating switch also must be widely applied among each circuit.Reliable in quality, the isolating switch that economy is outstanding will be the bases of the electrified development of China railways.
Generally indoor isolating switch all is isolating switch and motor-operating mechanism partial installation, so just just need to take a large amount of spaces, the isolating switch of especially installing, the importance in the space that particularly seems in cabinet.Research and development for the integral switch of 27.5kV miniaturization are extremely urgent.
Summary of the invention
The problem that proposes for solving above-mentioned requirements the purpose of this invention is to provide the indoor integrated electric isolating switch of a kind of 27.5kV, as the non-loaded situation of voltage is arranged lower minute, the usefulness of closing circuit.Be beneficial to improve the non-loaded situation of voltage is arranged lower minute, the reliability of closing circuit.
For achieving the above object, the technical solution used in the present invention provides the indoor integrated electric isolating switch of a kind of 27.5kV, and wherein: this isolating switch includes indoor high-voltage isolating switch, indoor-side output motor-operating mechanism, drive system and current-carrying part and holds together;
Described indoor high-voltage isolating switch includes post insulator, link insulator, moving contact component, isolation knife assembly, static contact component, shaft assembly and underframe assembly; Two post insulators are separately fixed on the underframe assembly, one post insulator upper end is fixed with static contact component, another post insulator upper end is fixed with moving contact component, one end of isolation knife assembly is connected with static contact component one end by the bolt pivot pin, but the isolation knife assembly other end is connected with the contact of moving contact component separated time; Be provided with link insulator in the middle of two post insulators, be connected with an end of link insulator in the middle of the isolation knife assembly, link insulator is connected with shaft assembly by the connecting lever that connects, thereby forms the isolating switch body; On the axle support plate with on the isolating switch body vertical direction shaft assembly of can be counterclockwise, turning clockwise is housed on the underframe assembly, on the side plate of shaft assembly by axle bumper cover fixed frame assembly, be connected with the connecting lever of a rotation on the shaft assembly, be connected with link insulator, can drive link insulator moves up and down, and then be with the isolation knife assembly to separate with moving contact component, realize dividing, closing circuit;
Indoor-side output motor-operating mechanism includes casing, main transmission part, secondary output plug, manual stopping means, and the whole logical securing member of main transmission part is connected with the underframe assembly;
Described main transmission part includes manual actuating parts, band drive disk assembly, screw-nut running part, electric limiting parts, motor; Motor drives the screw-nut running part by the band drive disk assembly, and the travel switch outage on the electric limiting parts, mechanism's stall are run in the motion of screw-nut running part drive stroke plate.Also can be by the motion of the manual actuating parts manual operation running part that connects on the screw-nut running part;
Described current-carrying part is to be separately fixed on the underframe assembly by two post insulators, the two ends of described isolation knife assembly connect respectively moving contact component and static contact component, be connected with an end of link insulator in the middle of the described isolation knife assembly, other end of link insulator is connected with shaft assembly by the connecting lever that connects.
Effect of the present invention is that this integrated electric isolating switch can be widely used in electric railway electric substation, and in other complete set of equipments of electric substation, as the non-loaded situation of voltage is arranged lower minute, the usefulness of closing circuit.According to the speed of domestic electric railway transport development and since this product technically primacy and the economy on the price, determined that this product must produce good social benefit, specifically may be embodied in following some:
1, the more original isolating switch of this integrated electric isolating switch and operating mechanism partial installation can be saved taking up room more than 1/2.
2, the isolating switch of this integrated electric isolating switch and operating mechanism are for once integrated, once debug to put in place synchronously before dispatching from the factory and get final product, four connecting-rod connecting devices in the middle of more originally isolating switch and operating mechanism partial installation have reduced, not only cost savings 1/5, reduce especially the time that on-the-spot isolating switch and operating mechanism are installed synchronous debugging.
3, these properties of product are reliable, can greatly reduce the field service workload, reduce operation procedure, raise the efficiency and reduce system's operation cost.
4, this integrated electric isolating switch has compact conformation, rapid operation, maintenance is simple, aesthetic in appearance, rational in infrastructure, volume is little, be convenient to install, system integration, is more suitable in indoor, the cabinet advantages such as lasting use.Belong to new intention, new technology, belong at home the technological precedence level.
Description of drawings
Fig. 1 is the indoor integrated electric isolating switch of 27.5kV of the present invention structural front view;
Fig. 2 is the indoor integrated electric isolating switch of 27.5kV of the present invention structure vertical view;
Fig. 3 is the indoor integrated electric isolating switch mechanism of 27.5kV of the present invention main transmission part view;
Fig. 4 is the indoor integrated electric isolating switch of 27.5kV of the present invention structural perspective.
Among the figure:
1, post insulator 2, link insulator 3, moving contact component 4, isolation knife assembly
5, static contact component 6, shaft assembly 7, underframe assembly 8, mechanism's casing
9, main transmission part 10, secondary output plug 11, manual stopping means
12, manual actuating parts 13, band drive disk assembly 14, screw-nut running part
15, electric limiting parts 16, motor
Embodiment
By reference to the accompanying drawings the structure of the indoor integrated electric isolating switch of 27.5kV of the present invention is illustrated.
The indoor integrated electric isolating switch of 27.5kV of the present invention structure is that this isolating switch includes indoor high-voltage isolating switch, indoor-side output motor-operating mechanism, drive system and current-carrying part and holds together.
Described indoor high-voltage isolating switch includes post insulator 1, link insulator 2, moving contact component 3, isolation knife assembly 4, static contact component 5, shaft assembly 6 and underframe assembly 7; Two post insulators 1 are separately fixed on the underframe assembly 7, one post insulator, 1 upper end is fixed with static contact component 5, another post insulator 1 upper end is fixed with moving contact component 3, one end of isolation knife assembly 4 is connected with static contact component 5 one ends by the bolt pivot pin, but isolation knife assembly 4 other ends are connected with the contact of moving contact component 3 separated times; Be provided with link insulator 2 in the middle of two post insulators 1, be connected with an end of link insulator 2 in the middle of the isolation knife assembly 4, link insulator 2 is connected with shaft assembly 6 by the connecting lever that connects, thereby forms the isolating switch body; On the axle support plate with on the isolating switch body vertical direction shaft assembly 6 of can be counterclockwise, turning clockwise is housed on the underframe assembly 7, on the side plate of shaft assembly 6 by axle bumper cover fixed frame assembly 7, be connected with the connecting lever of a rotation on the shaft assembly 6, be connected with link insulator 2, can drive link insulator 2 moves up and down, and then be with isolation knife assembly 4 to separate with moving contact component 3, realize dividing, closing circuit.
Indoor-side output motor-operating mechanism includes casing 8, main transmission part 9, secondary output plug 10, manual stopping means 11, and main transmission part 9 whole logical securing members are connected with underframe assembly 7.
Described main transmission part 9 includes manual actuating parts 12, band drive disk assembly 13, screw-nut running part 14, electric limiting parts 15, motor 16; Motor 16 drives screw-nut running part 14 by band drive disk assembly 13, and the travel switch outage on the electric limiting parts 15, mechanism's stall are run in the 14 drive stroke plate motions of screw-nut running part.Also can be by the motion of the manual actuating parts 12 manual operation running parts of connection on the screw-nut running part 14;
Described current-carrying part is to be separately fixed on the underframe assembly 7 by two post insulators 1, the two ends of described isolation knife assembly 4 connect respectively moving contact component 3 and static contact component 5, described isolation knife assembly 4) be connected with an end of link insulator 2 in the middle of, other end of link insulator 2 is connected with shaft assembly 6 by the connecting lever that connects.
Described motor-operating mechanism main transmission part 9 includes manual actuating parts 12, band drive disk assembly 13, screw-nut running part 14, electric limiting parts 15, motor 16, described motor 16 consists of the first order with band drive disk assembly 13 and slows down, screw-nut running part 14 slows down for the second level, motor 16 drives screw-nut running part 14 by band drive disk assembly 13 primary speed-downs, stroke plate motion contact above screw-nut running part 14 drives cuts off the power supply mechanism's stall to the travel switch on the electric limiting parts 15; The shaft assembly 6 of screw-nut running part 14 drive belt switches realizes that switches divide/close simultaneously; Manually shake manual stopping means 11 by crank during actuating and drive screw-nut running parts 14, and then the shaft assembly 6 of belt switch is realized switches deciliter.
Described underframe assembly 7 includes base, main shaft, stop block, back-up ring; The main shaft that being fixed with by back-up ring and stop block on the base support plate can be counterclockwise, turn clockwise, the stop screw of length adjustable is housed on the stop block, by the spacing angle of determining main shaft rotation of stop screw, so determine conduction isolation knife assembly 4 minutes, desired final position when closing.
Shown in Fig. 1-4, the indoor integrated electric isolating switch of 27.5kV of the present invention structure is that this integrated electric isolating switch is to consist of example with the indoor small-sized electric operating mechanism of CJ3 type and GN2-27.5 type indoor high-voltage isolating switch to be illustrated:
27.5kV indoor integrated electric isolating switch adopts DC motor drive, subtracts speed change system by leading screw and belt wheel transmission, and power is passed to output shaft, output shaft drives isolating switch, with realize switch minute, closing operation.
Motor drive mechanism mechanical reduction system comprises screw mandrel, screw and output revolving shaft; The reducing gear tail end is provided with the manual operation hole and carries out manual operation, when manual lever inserts mechanism, cuts off the electricity supply, and guarantees safety.
Electric control system comprises driving electric system and control electric system, drives the electric system main electrical scheme in mechanism case, and control electric system main electrical scheme is then indoor at control operation case or complete set of equipments linear quadratic control.
Mechanism case is connected with indoor isolator, and the control control box is connected by aviation plug by cable in the middle of being installed on the net grid during indoor use; All control components and parts all are contained in complete set of equipments linear quadratic control chamber when using in the cabinet, are connected by aviation plug by cable.This isolating switch is comprised of post insulator 1, link insulator 2, moving contact component 3, isolation knife assembly 4, static contact component 5, shaft assembly 6, underframe assembly 7.This isolating switch comprises by the isolating switch body and being installed in parallel on the underframe assembly 7, on the axle support plate with on the flat body vertical direction of isolating switch the shaft assembly 6 of can be counterclockwise, turning clockwise is housed on the underframe assembly 7, shaft assembly 6 is by on back-up ring fixed frame assembly 7 side plates, be connected with the connecting lever of a rotation on the shaft assembly 6, be connected with link insulator 2, can drive link insulator 2 and move up and down, and then band isolation knife assembly 4 realizes dividing, closing circuit.
The conductive component of isolating switch body is separately fixed on the underframe assembly 7 by two post insulators 1, the two ends of described isolation knife assembly 4 connect respectively moving contact component 3 and static contact component 5, be connected with an end of link insulator 2 in the middle of the described isolation knife assembly 4, link insulator 2 is connected with shaft assembly 6 by the connecting lever that connects.
The actuating modular construction of isolating switch body is that two post insulators 1 are separately fixed on the underframe assembly 7, the shaft assembly 6 that being fixed with by axle sleeve and axle bumper cover on the axle support plate of underframe assembly 7 can be counterclockwise, turn clockwise, shaft assembly 6 is connected with the connecting lever that is connected with link insulator 2 other ends by bearing pin.
The isolating switch current-carrying part mainly is comprised of moving contact component 3, isolation knife assembly 4, static contact component 5.Static contact component 5 is mounted on two post insulators 1 that are fixed in above the underframe, and an end of isolation knife assembly 4 is connected with a static contact component 5 by the bolt pivot pin, and rotation isolation knife assembly 4 can divide with other end moving contact component 3 formations and be connected.In the middle of rotating isolation knife assembly 4 link insulator 2 is arranged, there is fastening spring at two ends, keep the pressure of 2 pairs of fixed contacts of link insulator, the parallel installation of isolating switch body.Link insulator 2 be installed in underframe assembly 7 on shaft assembly 6 on connecting lever link to each other, shaft assembly 6 links to each other by the output shaft of connecting lever with the screw-nut running part 14 of motor-operating mechanism.The two ends of shaft assembly 6 are underframe assembly 7 all, and electric operating mechanism can be contained in any side, and motor-operating mechanism and isolating switch are installed on the underframe assembly 7 jointly.Underframe assembly 7 is comprised of base, main shaft, stop block, back-up ring etc.The final position of resulting requirement when stop block is mainly used to guarantee 4 " dividing " of conduction isolation knife assembly, " closing ".
As shown in Figure 2; mechanism's casing 8 of the motor-operating mechanism of the indoor integrated electric isolating switch of 27.5kV of the present invention mainly is protection mechanism internal main running part; secondary output plug 10 be and control cabinet between electric interfaces, manually stopping means 11 is to prevent electrically operated locking device when carrying out manual operation.
As shown in Figure 3, electric operating mechanism main transmission part chief component structure is: manual actuating parts 12, band drive disk assembly 13, screw-nut running part 14, electric limiting parts 15, motor 16.
Screw-nut running part 14 forms screw pair, and the stroke plate is connected with screw 13 with output shaft, and manually the leading screw of actuating parts 12 screw-nut running parts 14 connects, motor 16, and band drive disk assembly 13 and remaining part are fixed on the main transmission mounting panel.
Operation logic is: press in control cabinet minute/switch knob, motor gets electric forward (counter-rotating), realize double reduction by belt transmission, screw-nut transmission, screw drive the stroke plate minute/co-bit puts and forces the outage of electric limiting parts, motor stalling, simultaneously screw drive output shaft passes to shaft assembly 6 and realizes that isolating switches divide/close a floodgate.Shake manual actuating parts with crank during manual actuating and drive leading screw, screw, and then the drive output shaft passes to shaft assembly 6 realization isolating switch divide-shut brakes.
This isolating switch satisfies the regulation of standard GB/T 1985 " alternating-current high-voltage isolation switch and earthed switch ", technical parameter such as following table:
Claims (3)
1. indoor integrated electric isolating switch of 27.5kV is characterized in that: this isolating switch includes indoor high-voltage isolating switch, indoor-side output motor-operating mechanism, drive system and current-carrying part and holds together;
Described indoor high-voltage isolating switch includes post insulator (1), link insulator (2), moving contact component (3), isolation knife assembly (4), static contact component (5), shaft assembly (6) and underframe assembly (7); Two post insulators (1) are separately fixed on the underframe assembly (7), one post insulator (1) upper end is fixed with static contact component (5), another post insulator (1) upper end is fixed with moving contact component (3), one end of isolation knife assembly (4) is connected with static contact component (5) one ends by the bolt pivot pin, isolation knife assembly (4) other end with moving contact component (3) but separated time contact and be connected; Be provided with link insulator (2) in the middle of two post insulators (1), be connected with an end of link insulator (2) in the middle of the isolation knife assembly (4), link insulator (2) is connected with shaft assembly (6) by the connecting lever that connects, thereby forms the isolating switch body; On the upper axle support plate of underframe assembly (7) with on the isolating switch body vertical direction shaft assembly (6) of can be counterclockwise, turning clockwise is housed, on the side plate of shaft assembly (6) by axle bumper cover fixed frame assembly (7), be connected with the connecting lever of a rotation on the shaft assembly (6), be connected with link insulator (2), can drive link insulator (2) moves up and down, and then be with isolation knife assembly (4) to separate with moving contact component (3), realize dividing, closing circuit;
Indoor-side output motor-operating mechanism includes casing (8), main transmission part (9), secondary output plug (10), manual stopping means (11), and the whole logical securing member of main transmission part (9) is connected with underframe assembly (7);
Described main transmission part (9) includes manual actuating parts (12), band drive disk assembly (13), screw-nut running part (14), electric limiting parts (15), motor (16); Motor (16) drives screw-nut running part (14) by band drive disk assembly (13), and the travel switch outage on the electric limiting parts (15), mechanism's stall are run in the motion of screw-nut running part (14) drive stroke plate.Also can be by the motion of upper manual actuating parts (12) the manual operation running part that connects of screw-nut running part (14);
Described current-carrying part is to be separately fixed on the underframe assembly (7) by two post insulators (1), the two ends of described isolation knife assembly (4) connect respectively moving contact component (3) and static contact component (5), be connected with an end of link insulator (2) in the middle of the described isolation knife assembly (4), other end of link insulator (2) is connected with shaft assembly (6) by the connecting lever that connects.
2. the indoor integrated electric isolating switch of 27.5kV according to claim 1, it is characterized in that: described motor-operating mechanism main transmission part (9) includes manual actuating parts (12), band drive disk assembly (13), screw-nut running part (14), electric limiting parts (15), motor (16), described motor (16) consists of the first order with band drive disk assembly (13) and slows down, screw-nut running part (14) slows down for the second level, motor (16) drives screw-nut running part (14) by band drive disk assembly (13) primary speed-down, stroke plate motion contact above screw-nut running part (14) drives cuts off the power supply mechanism's stall to the travel switch on the electric limiting parts (15); The shaft assembly (6) of simultaneously screw-nut running part (14) drive belt switch realizes that switch divides/closes; Manually shake manual stopping means (11) by crank during actuating and drive screw-nut running part (14), and then the shaft assembly of belt switch (6) is realized switch deciliter.
3. the indoor integrated electric isolating switch of 27.5kV according to claim 1, it is characterized in that: described underframe assembly (7) includes base, main shaft, stop block, back-up ring; The main shaft that being fixed with by back-up ring and stop block on the base support plate can be counterclockwise, turn clockwise, the stop screw of length adjustable is housed on the stop block, by the spacing angle of determining the main shaft rotation of stop screw, and then determine that conduction isolation knife assembly (4) divides, desired final position when closing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105644947A CN103065856A (en) | 2012-12-19 | 2012-12-19 | 27.5KV indoor integration electric isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105644947A CN103065856A (en) | 2012-12-19 | 2012-12-19 | 27.5KV indoor integration electric isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103065856A true CN103065856A (en) | 2013-04-24 |
Family
ID=48108433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105644947A Pending CN103065856A (en) | 2012-12-19 | 2012-12-19 | 27.5KV indoor integration electric isolating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103065856A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109427492A (en) * | 2017-09-04 | 2019-03-05 | 丹东市东华开关有限责任公司 | A kind of intelligent integral electric disconnecting switch |
| CN114464474A (en) * | 2022-03-15 | 2022-05-10 | 国网江苏省电力有限公司南通供电分公司 | Intelligent monitoring device and method for separation and combination degree of moving contact and static contact of isolating switch |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0325747A2 (en) * | 1988-01-27 | 1989-08-02 | Gec Alsthom T & D GmbH | Device for mechanic connection of the switch blades of a medium voltage switch with a switch drive |
| CN101901713A (en) * | 2009-05-30 | 2010-12-01 | 陈家斌 | 6-10kV electric isolating switch |
| CN201975316U (en) * | 2011-01-20 | 2011-09-14 | 川铁电气（天津）集团有限公司 | Low-power electric operation device for outdoor high-voltage switch |
| CN203103200U (en) * | 2012-12-19 | 2013-07-31 | 川铁电气（天津）集团有限公司 | 27.5kV indoor integration electric isolating switch |
-
2012
- 2012-12-19 CN CN2012105644947A patent/CN103065856A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0325747A2 (en) * | 1988-01-27 | 1989-08-02 | Gec Alsthom T & D GmbH | Device for mechanic connection of the switch blades of a medium voltage switch with a switch drive |
| CN101901713A (en) * | 2009-05-30 | 2010-12-01 | 陈家斌 | 6-10kV electric isolating switch |
| CN201975316U (en) * | 2011-01-20 | 2011-09-14 | 川铁电气（天津）集团有限公司 | Low-power electric operation device for outdoor high-voltage switch |
| CN203103200U (en) * | 2012-12-19 | 2013-07-31 | 川铁电气（天津）集团有限公司 | 27.5kV indoor integration electric isolating switch |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109427492A (en) * | 2017-09-04 | 2019-03-05 | 丹东市东华开关有限责任公司 | A kind of intelligent integral electric disconnecting switch |
| CN114464474A (en) * | 2022-03-15 | 2022-05-10 | 国网江苏省电力有限公司南通供电分公司 | Intelligent monitoring device and method for separation and combination degree of moving contact and static contact of isolating switch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203103200U (en) | 27.5kV indoor integration electric isolating switch | |
| CN104201037A (en) | Novel electric device for high-voltage isolating switch | |
| CN202905484U (en) | Excitation-free strip-type off-circuit tap switch | |
| CN103065856A (en) | 27.5KV indoor integration electric isolating switch | |
| CN202307663U (en) | 252kV three-phase mechanical linkage tank-type high-pressure sulfur hexafluoride breaker | |
| CN210926697U (en) | Cubical switchboard convenient to change shell | |
| CN105529196B (en) | The anti-misoperation electric device of contact nets in electrified railways disconnecting switch | |
| CN205582814U (en) | Outdoor 35kV high pressure vacuum circuit breaker adapted module mechanism | |
| CN203103205U (en) | 1500V direct current isolating switch | |
| CN209418404U (en) | Indoor manual insulating ground disconnecting switch | |
| CN201886954U (en) | Novel pole column type three-phase high-voltage isolating switch | |
| CN201355594Y (en) | Electric locking device | |
| CN203165780U (en) | Rotary type indoor high voltage disconnecting switch | |
| CN203135302U (en) | Three-phase box-sharing HGIS structure | |
| CN204558282U (en) | Isolating switch control apparatus for electrically-operated mechanism | |
| CN203733692U (en) | Modularized electric mechanism of disconnecting switch | |
| CN2638302Y (en) | Switch cubicle with electric propeller mechanism | |
| CN102683097A (en) | Multi-station combination outdoor vacuum switch device | |
| CN202721074U (en) | Multi-station combined outdoor vacuum switch apparatus | |
| CN205265043U (en) | Dual power supply low -voltage switchgear | |
| CN204012397U (en) | A kind of intelligent solid isolated vacuum switchgear | |
| CN203242558U (en) | Novel permanent magnetic mechanism | |
| CN204102777U (en) | A kind of outdoor high-voltage heavy current disconnecting switches device | |
| CN218038985U (en) | 10kV isolating switch | |
| CN214378179U (en) | Static contact for high-voltage isolating switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130424 |