CN104485253A - Transmission mechanism and switch equipment using transmission mechanism - Google Patents
Transmission mechanism and switch equipment using transmission mechanism Download PDFInfo
- Publication number
- CN104485253A CN104485253A CN201410664163.XA CN201410664163A CN104485253A CN 104485253 A CN104485253 A CN 104485253A CN 201410664163 A CN201410664163 A CN 201410664163A CN 104485253 A CN104485253 A CN 104485253A
- Authority
- CN
- China
- Prior art keywords
- lever
- pull bar
- frame
- spring
- spring base
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/46—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention relates to a transmission mechanism and switch equipment using the transmission mechanism. The transmission mechanism comprises a machine frame and a first lever, wherein a first spring seat and a first pull rod are movably assembled on the machine frame along the left and right direction in a guide way, the first pull rod is used for realizing transmission connection with an insulation pull rod of a corresponding first arc extinguishing chamber, a first overrun spring is arranged between the first spring seat and the machine frame, the middle part of the first lever is connected with the first pull rod, one end of the first lever is connected with the spring seat, the other end of the first lever is provided with a first hinging structure used for torque input. The invention provides the transmission mechanism capable of increasing pressure between movable and static contacts and the switch equipment using the transmission mechanism.
Description
Technical field
The present invention relates to a kind of transmission mechanism and use the switchgear of this transmission mechanism.
Background technology
At present, KYN61-40.5 metal switch apparatus, inside are furnished with 40.5 type vacuum circuit-breakers, Application comparison is extensive at home, and this is class switchgear technology maturation, and various functions can meet for basic instructions for use, but in opening-closing capacitor bank, conventional vacuum circuit-breaker does not have sulfur hexafluoride breaker reliable, therefore develops vacuum circuit breaker with double breaks, and the switching capacitance current capacity promoting series of products is extremely urgent.
The more conventional single-break circuit breaker of vacuum circuit breaker with double breaks is many 3 vacuum interrupters, this doubles with regard to the operating work requiring operating mechanism to provide, the pressure between the dynamic and static contact of vacuum interrupter just can be made to meet theory calls value, if the Power output increasing operating mechanism is only relied on to realize simple, the burden of transmission mechanism can be increased greatly, how greatly increase the cost of product, be this area technical problem urgently to be resolved hurrily by the transmission mechanism pressure increased between dynamic and static contact always.
Summary of the invention
The object of the present invention is to provide a kind of transmission mechanism that can increase pressure between dynamic and static contact; The present invention also aims to provide a kind of switchgear using this transmission mechanism.
In order to solve the problem, in the present invention, the technical scheme of transmission mechanism is:
A kind of transmission mechanism, comprise frame and the first lever, in frame, guiding movement is equipped with the first spring base and the first pull bar for being in transmission connection with the insulated tension pole of corresponding first arc control device in left-right direction, the first excess of stroke spring is provided with between first spring base and frame, the middle part of the first lever is connected with described first pull bar, one end of first lever is connected with described spring base, and the other end of the first lever is provided with the first articulated structure for moment of torsion input.
Transmission mechanism also comprises the second lever, in frame, guiding movement is equipped with the second spring base and the second pull bar for being in transmission connection with the insulated tension pole of corresponding second arc control device in left-right direction, the second excess of stroke spring is provided with between second spring base and frame, first spring base, first lever, first pull bar respectively with the second spring base, second lever, second pull bar is arranged symmetrically with up and down, the middle part of the second lever is connected with described second pull bar, the lower end of the second lever is connected with described second spring base, the upper end of the second lever is provided with the second articulated structure for moment of torsion input.
In frame, between first, second lever, guiding movement is equipped with driver plate in left-right direction, and the two ends up and down of driver plate are hinged and connected with first, second articulated structure respectively.
Frame is rotatably equipped with power transmission shaft and Power output main shaft that pivot center extends along the longitudinal direction, Power output main shaft is positioned at the downside of power transmission shaft, power transmission shaft is installed with the V-arrangement rocking arm with Power output connecting lever and power input connecting lever, Power output connecting lever and described driver plate are in transmission connection, power input connecting lever is connected with the vertical vertical pull bar arranged, vertical pull bar is arranged with tripping spring, Power output main shaft is installed with the first connecting lever be connected with described vertical pull bar lower end, between the first connecting lever and frame, is provided with the buffer vertically arranged.
Described vertical pull bar lower end is installed with lower spring cup, and frame is installed with the upper spring seat being sheathed on described vertical pull bar periphery, tripping spring is arranged between upper and lower spring base.
The technical scheme of breaker in middle equipment of the present invention is:
Switchgear, comprise the first arc control device and by the power output part of transmission mechanism to the insulated tension pole transmission of described first arc control device, transmission mechanism comprises frame and the first lever, guiding movement the first pull bar of being equipped with the first spring base and being in transmission connection with the insulated tension pole of described first arc control device in left-right direction in frame, the first excess of stroke spring is provided with between first spring base and frame, the middle part of the first lever is connected with described first pull bar, one end of first lever is connected with described spring base, the other end of the first lever is provided with the first articulated structure for moment of torsion input.
Switchgear also comprises the second arc control device be arranged at below described first arc control device, first, second arc control device are all horizontally disposed with, first, the right-hand member of the second arc control device is fixedly arranged in described frame, transmission mechanism also comprises the second lever, in frame, guiding movement is equipped with the second spring base and the second pull bar for being in transmission connection with the insulated tension pole of the second arc control device in left-right direction, the second excess of stroke spring is provided with between second spring base and frame, first spring base, first lever, first pull bar respectively with the second spring base, second lever, second pull bar is arranged symmetrically with up and down, the middle part of the second lever is connected with described second pull bar, the lower end of the second lever is connected with described second spring base, the upper end of the second lever is provided with the second articulated structure for moment of torsion input.
In frame, between first, second lever, guiding movement is equipped with driver plate in left-right direction, and the two ends up and down of driver plate are hinged and connected with first, second articulated structure respectively.
Frame is rotatably equipped with power transmission shaft and Power output main shaft that pivot center extends along the longitudinal direction, Power output main shaft is positioned at the downside of power transmission shaft, power transmission shaft sets firmly the V-arrangement rocking arm with Power output connecting lever and power input connecting lever, Power output connecting lever and described driver plate are in transmission connection, power input connecting lever is connected with the vertical vertical pull bar arranged, vertical pull bar is arranged with tripping spring, Power output main shaft is installed with the first connecting lever be connected with described vertical pull bar lower end, between the first connecting lever and frame, is provided with the buffer vertically arranged.
Described vertical pull bar lower end is installed with lower spring cup, and frame is installed with the upper spring seat being sheathed on described vertical pull bar periphery, tripping spring is arranged between upper and lower spring base.
Beneficial effect of the present invention is: need moving in the first arc control device, when fixed contact closes a floodgate, power output part is to the first articulated structure input torque of the first lever, now the precompression of the first excess of stroke spring is larger, first spring base can not be subjected to displacement substantially, along with the Power output of power output part, first lever drives the insulated tension pole of the first arc control device to move towards combined floodgate direction by the first pull bar, dynamic, after fixed contact contact, the position of the first pull bar can not be moved, first pull bar provides a fulcrum for the first lever, along with power output part continues outputting power, first spring base starts mobile, first excess of stroke spring energy-storage and being, fixed contact provides extra pressure, thus ensure dynamic, the firm compression of fixed contact.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of breaker in middle equipment of the present invention;
Fig. 2 be in Fig. 1 transmission mechanism and first, second arc control device coordinate schematic diagram;
Fig. 3 is the schematic diagram that coordinates of lower conductive seat and lower pole in Fig. 2;
Fig. 4 is the structural representation of lower conductive seat in Fig. 3;
Fig. 5 be in Fig. 1 upper and lower conductive seat with support busbar, insulation column coordinate schematic diagram.
Embodiment
Switchgear as shown in Fig. 1 ~ 5: comprise horizontally disposed upper pole 1 and lower pole 4, upper pole comprises the upper pole body that is enclosed to form the first arc control device and is arranged at upper conductive seat 40 in pole body, lower pole comprises the lower pole body being enclosed to form the second arc control device and the lower conductive seat 9 be arranged on lower pole body, switchgear also comprises by the power output part (not shown) of transmission mechanism to the insulated tension pole transmission of first, second arc control device, and the present embodiment medium power output block is motor.Transmission mechanism comprises frame 6, and the equal horizontal arrangement of upper and lower pole, the right-hand member of upper and lower pole is fixedly arranged in frame.Transmission mechanism comprises the first spring base 11, first lever 14, first pull bar and be symmetrically arranged in the first spring base respectively, first lever, the second spring base 34 below first pull bar, second lever 24 and the second pull bar 25, wherein the first spring base, second spring base, first pull bar, second pull bar in left-right direction guiding movement is assemblied in frame, the first excess of stroke spring 12 is provided with between first spring base and frame, the second excess of stroke spring 33 is provided with between second spring base and frame, first, the two ends of the second excess of stroke spring are respectively arranged with adjustment pad, the initial pretightning force of corresponding spring can be adjusted by adjustment pad, in the present embodiment first, second excess of stroke spring is all stage clips, upper end and first spring base 11 of the first lever 14 are hinged and connected, lower end and second spring base 34 of the second lever 24 are hinged and connected, first pull bar, second pull bar includes the left lever part 13 be connected with the insulated tension pole of corresponding arc control device and the right pull bar part 15 being connected to corresponding its intermediate part, the two ends, left and right of right pull bar part are hinged and connected with left lever part and corresponding lever respectively, the lower end of the first lever is provided with the first articulated structure for moment of torsion input, the upper end of the second lever is provided with the second articulated structure for moment of torsion input.In frame, between first, second lever, guiding movement is equipped with driver plate 17 in left-right direction, the two ends up and down of driver plate 17 are hinged and connected with first, second articulated structure respectively, frame is provided with the long guiding hole that length extends in left-right direction, driver plate is assemblied in frame by the bearing pin guiding movement be arranged in long guiding hole that it is arranged.Frame is rotatably equipped with power transmission shaft 19 and Power output main shaft 32 that pivot center extends along the longitudinal direction, Power output main shaft is used for the transmission of three-phase arc control device, Power output main shaft is positioned at the downside of power transmission shaft, power transmission shaft is installed with the V-arrangement rocking arm with Power output connecting lever 18 and power input connecting lever 20, Power output connecting lever 18 and driver plate 17 are in transmission connection, power input connecting lever 20 is connected with the vertical vertical pull bar 23 arranged, vertical pull bar 23 is arranged with tripping spring 22, vertical pull bar lower end is installed with lower spring cup 26, frame is installed with the upper spring seat 21 being sheathed on described vertical pull bar periphery, tripping spring is arranged at, between lower spring cup, Power output main shaft is installed with the first connecting lever 27 be connected with vertical pull bar lower end, the buffer 28 vertically arranged is provided with between first connecting lever and frame, Power output main shaft is also installed with the second connecting lever 29, the below of Power output main shaft is provided with the power input shaft arranged with Power output main axis parallel, motor power output and power input shaft are in transmission connection, power input shaft is provided with the 3rd connecting lever 31, 3rd connecting lever 31 is connected with the second connecting lever 29 transmission by connecting plate 30.
On, lower conductive seat is symmetrical arranged, now only the concrete structure of lower conductive seat is described in detail, the upper end of lower conductive seat 9 is provided with the spacing support portion 35 for namely descending arc control device to support to coordinate with lower pole body be directed upwardly, the outer peripheral face of lower conductive seat is the cylindrical surface structure that axis extends in left-right direction, support portion is made up of the upper end outer peripheral face of lower conductive seat, cylindrical surface structure is adopted to ensure that Area of bearing on the one hand, ensure that support strength, also conductive seat surface can be avoided on the other hand to produce corona, the perforation running through lower conductive seat is in left-right direction provided with in lower conductive seat, the moving contact matched in clearance of perforation and the second arc control device, the moving contact of the second arc control device can move left and right in perforation, and can not produce and rub with the hole wall of perforation, the edge, aperture of perforation is provided with screw perforation, be installed with in screw perforation on fixing moving contact 38 be flexible coupling 36 line pressing bolt, conducting block on being flexible coupling and moving contact cone match, because moving contact is in perforation with being flexible coupling to be welded, following conductive seat can play good shielding action, avoid the Electric Field Distribution of the irregularly shaped destruction products such as moving contact and the corner angle that are flexible coupling.The lower end of lower conductive seat is provided with lower convex platform, lower convex platform offers the installing hole 39 that axis extends along the vertical direction, the steel thread bush for insulation column 5 spinning is provided with in installing hole, mechanical strength can be increased by steel thread bush, the upper end of lower conductive seat is provided with and connects row 8, connect the surperficial degree silver of row, connect on row and be provided with bolt penetration hole, support busbar 7 can be fixed on connection row by installing bolt in bolt penetration hole, support busbar to be connected to, on connection row between lower conductive seat, support the effect that busbar plays conduction and supports, the outer race supporting busbar is provided with insulating sleeve 3, the inwall of insulating sleeve 3 is coated with conductive layer, insulating sleeve can play the effect of electric field shielding and insulating protection.Outer surface many employings arc-shaped structure of upper and lower conductive seat, like this can balanced Electric Field Distribution.The left end of upper and lower pole is provided with the contact arm connecting hole 37 of corresponding quiet end contact arm 2 installation of confession that axis extends in left-right direction, and the axis of contact arm connecting hole is consistent with the axis of pole, can facilitate the connection of quiet end contact arm like this.
The every of breaker in middle equipment of the present invention all has two poles mutually, achieve double-fracture, improve the ability of switching capacitance electric current, simultaneously too crowded after single-phase double-fracture, two poles of every phase are horizontally disposed with up and down, ensure that the compactedness in space, overcome the space congested problem that double-fracture brings, ensure that Mechanical Reliability and the electrical reliability of product; And upper conductive seat, lower conductive seat, support busbar and post insulator acting in conjunction, ensure that the support strength of two poles, also make the level of pole be mounted for possibility.When needs closing operation, driven by motor power input shaft rotates, power is through the 3rd connecting lever, connecting plate is transmitted to the second connecting lever, transmission of power is given each phase by Power output main shaft, first connecting lever drives vertical backward stick action, tripping spring energy storage, V-arrangement rocking arm drives driver plate to left movement, driver plate drives first, second lever upset, for the first lever, time initial, the precompression of the first excess of stroke spring is larger, first spring base can not by the first leverage towards moving right, first lever drives the insulated tension pole 10 of the first arc control device towards moving left by the first pull bar, thus realize dynamic, fixed contact closes a floodgate, dynamic, after fixed contact closes a floodgate, first pull bar is no longer towards moving left, first pull bar provides a fulcrum for the first lever, being rotated further subsequently along with motor, first spring base is towards moving right compression first excess of stroke spring, that is the pressure suffered by moving contact is probably the twice (determining according to lever proportionality coefficient) of current excess of stroke spring pressure, the compact conformation of whole drive mechanism, takies less space, left and right simultaneously.
In other embodiment of this switchgear: first, second excess of stroke spring also can be extension spring; When only needing single break to arrange, lower pole also can not be established, now V-arrangement rocking arm can directly with the first lever drive; Motor also can directly be connected with transmission shaft driven, now can by power transmission shaft to each alternate transmission; Motor also can be replaced by other power output part such as driving cylinder, electromagnetic relay; Pole also can be replaced by insulating cylinder; Conductive seat also can not to conduct electricity with corresponding moving contact by being flexible coupling and connect, such as arranges elasticity fingertip in perforation, and elasticity fingertip conducts electricity with moving contact sliding contact and coordinates; Support portion also can be planar structure or concave structure.
The embodiment of transmission mechanism is as shown in Fig. 1 ~ 4: the concrete structure of transmission mechanism is identical with the transmission mechanism described in above-mentioned each switchgear embodiment, is not described in detail in this.
Claims (10)
1. a transmission mechanism, it is characterized in that: comprise frame and the first lever, in frame, guiding movement is equipped with the first spring base and the first pull bar for being in transmission connection with the insulated tension pole of corresponding first arc control device in left-right direction, the first excess of stroke spring is provided with between first spring base and frame, the middle part of the first lever is connected with described first pull bar, one end of first lever is connected with described spring base, and the other end of the first lever is provided with the first articulated structure for moment of torsion input.
2. transmission mechanism according to claim 1, it is characterized in that: transmission mechanism also comprises the second lever, in frame, guiding movement is equipped with the second spring base and the second pull bar for being in transmission connection with the insulated tension pole of corresponding second arc control device in left-right direction, the second excess of stroke spring is provided with between second spring base and frame, first spring base, first lever, first pull bar respectively with the second spring base, second lever, second pull bar is arranged symmetrically with up and down, the middle part of the second lever is connected with described second pull bar, the lower end of the second lever is connected with described second spring base, the upper end of the second lever is provided with the second articulated structure for moment of torsion input.
3. transmission mechanism according to claim 2, is characterized in that: in frame, between first, second lever, guiding movement is equipped with driver plate in left-right direction, and the two ends up and down of driver plate are hinged and connected with first, second articulated structure respectively.
4. transmission mechanism according to claim 3, it is characterized in that: frame is rotatably equipped with power transmission shaft and Power output main shaft that pivot center extends along the longitudinal direction, Power output main shaft is positioned at the downside of power transmission shaft, power transmission shaft is installed with the V-arrangement rocking arm with Power output connecting lever and power input connecting lever, Power output connecting lever and described driver plate are in transmission connection, power input connecting lever is connected with the vertical vertical pull bar arranged, vertical pull bar is arranged with tripping spring, Power output main shaft is installed with the first connecting lever be connected with described vertical pull bar lower end, the buffer vertically arranged is provided with between first connecting lever and frame.
5. transmission mechanism according to claim 4, is characterized in that: described vertical pull bar lower end is installed with lower spring cup, and frame is installed with the upper spring seat being sheathed on described vertical pull bar periphery, tripping spring is arranged between upper and lower spring base.
6. switchgear, comprise the first arc control device and by the power output part of transmission mechanism to the insulated tension pole transmission of described first arc control device, it is characterized in that: transmission mechanism comprises frame and the first lever, guiding movement the first pull bar of being equipped with the first spring base and being in transmission connection with the insulated tension pole of described first arc control device in left-right direction in frame, the first excess of stroke spring is provided with between first spring base and frame, the middle part of the first lever is connected with described first pull bar, one end of first lever is connected with described spring base, the other end of the first lever is provided with the first articulated structure for moment of torsion input.
7. switchgear according to claim 6, it is characterized in that: switchgear also comprises the second arc control device be arranged at below described first arc control device, first, second arc control device are all horizontally disposed with, first, the right-hand member of the second arc control device is fixedly arranged in described frame, transmission mechanism also comprises the second lever, in frame, guiding movement is equipped with the second spring base and the second pull bar for being in transmission connection with the insulated tension pole of the second arc control device in left-right direction, the second excess of stroke spring is provided with between second spring base and frame, first spring base, first lever, first pull bar respectively with the second spring base, second lever, second pull bar is arranged symmetrically with up and down, the middle part of the second lever is connected with described second pull bar, the lower end of the second lever is connected with described second spring base, the upper end of the second lever is provided with the second articulated structure for moment of torsion input.
8. switchgear according to claim 7, is characterized in that: in frame, between first, second lever, guiding movement is equipped with driver plate in left-right direction, and the two ends up and down of driver plate are hinged and connected with first, second articulated structure respectively.
9. switchgear according to claim 8, it is characterized in that: frame is rotatably equipped with power transmission shaft and Power output main shaft that pivot center extends along the longitudinal direction, Power output main shaft is positioned at the downside of power transmission shaft, power transmission shaft sets firmly the V-arrangement rocking arm with Power output connecting lever and power input connecting lever, Power output connecting lever and described driver plate are in transmission connection, power input connecting lever is connected with the vertical vertical pull bar arranged, vertical pull bar is arranged with tripping spring, Power output main shaft is installed with the first connecting lever be connected with described vertical pull bar lower end, the buffer vertically arranged is provided with between first connecting lever and frame.
10. switchgear according to claim 9, is characterized in that: described vertical pull bar lower end is installed with lower spring cup, and frame is installed with the upper spring seat being sheathed on described vertical pull bar periphery, tripping spring is arranged between upper and lower spring base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410664163.XA CN104485253B (en) | 2014-11-20 | 2014-11-20 | A kind of transmission mechanism and the switchgear using the transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410664163.XA CN104485253B (en) | 2014-11-20 | 2014-11-20 | A kind of transmission mechanism and the switchgear using the transmission mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104485253A true CN104485253A (en) | 2015-04-01 |
| CN104485253B CN104485253B (en) | 2017-06-06 |
Family
ID=52759790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410664163.XA Active CN104485253B (en) | 2014-11-20 | 2014-11-20 | A kind of transmission mechanism and the switchgear using the transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104485253B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH460909A (en) * | 1965-04-22 | 1968-08-15 | Ass Elect Ind | Electric circuit breaker |
| GB1126362A (en) * | 1965-07-06 | 1968-09-05 | Ass Elect Ind | Improvements in and relating to electric circuit breakers |
| DE3726739A1 (en) * | 1987-08-07 | 1988-03-03 | Slamecka Ernst | Contact pressure-producing device especially for vacuum switches in a single-row or double-row arrangement |
| JPH10178714A (en) * | 1996-12-19 | 1998-06-30 | Meidensha Corp | Interrupter |
| JP2008293833A (en) * | 2007-05-25 | 2008-12-04 | Mitsubishi Electric Corp | Contact pressure regulation mechanism for switch |
| CN101969007A (en) * | 2010-11-04 | 2011-02-09 | 河南省电力公司信阳供电公司 | Dual-power high-voltage vacuum circuit breaker |
| CN103165336A (en) * | 2011-12-09 | 2013-06-19 | 辽宁东鹰电器集团有限公司 | Side-mounted vacuum circuit breaker |
| CN204303657U (en) * | 2014-11-20 | 2015-04-29 | 平高集团有限公司 | Transmission mechanism and use the switchgear of this transmission mechanism |
-
2014
- 2014-11-20 CN CN201410664163.XA patent/CN104485253B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH460909A (en) * | 1965-04-22 | 1968-08-15 | Ass Elect Ind | Electric circuit breaker |
| GB1126362A (en) * | 1965-07-06 | 1968-09-05 | Ass Elect Ind | Improvements in and relating to electric circuit breakers |
| DE3726739A1 (en) * | 1987-08-07 | 1988-03-03 | Slamecka Ernst | Contact pressure-producing device especially for vacuum switches in a single-row or double-row arrangement |
| JPH10178714A (en) * | 1996-12-19 | 1998-06-30 | Meidensha Corp | Interrupter |
| JP2008293833A (en) * | 2007-05-25 | 2008-12-04 | Mitsubishi Electric Corp | Contact pressure regulation mechanism for switch |
| CN101969007A (en) * | 2010-11-04 | 2011-02-09 | 河南省电力公司信阳供电公司 | Dual-power high-voltage vacuum circuit breaker |
| CN103165336A (en) * | 2011-12-09 | 2013-06-19 | 辽宁东鹰电器集团有限公司 | Side-mounted vacuum circuit breaker |
| CN204303657U (en) * | 2014-11-20 | 2015-04-29 | 平高集团有限公司 | Transmission mechanism and use the switchgear of this transmission mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104485253B (en) | 2017-06-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101037027B1 (en) | Vacuum circuit breaker | |
| CN104576176B (en) | A kind of chopper of arc-chutes cascaded structure | |
| CN104576175A (en) | High-voltage double-break circuit breaker | |
| CN201893269U (en) | High-voltage disconnector contact component | |
| CN103021728A (en) | Medium-voltage electric distribution apparatus | |
| CN101645368B (en) | Electric switch provided with separate arc-extinguishing device | |
| CN210110626U (en) | Operating mechanism for isolating load switch | |
| CN204303657U (en) | Transmission mechanism and use the switchgear of this transmission mechanism | |
| KR101374957B1 (en) | Electromagnetically-operated switching device | |
| CN101162659A (en) | Switch installation used for electrical power system | |
| CN204303671U (en) | The operating mechanism of a kind of pair of moving contact breaker | |
| CN204315453U (en) | Double-fracture switchgear and monopolar configuration thereof | |
| CN104485255A (en) | Double-break switch equipment and monopole structure thereof | |
| CN104485253A (en) | Transmission mechanism and switch equipment using transmission mechanism | |
| CN204303656U (en) | Vacuum circuit breaker and pole thereof and conductive seat | |
| CN204558338U (en) | Isolating switch | |
| CN106601538A (en) | Direct current bypass switch | |
| CN104485252A (en) | Vacuum circuit breaker, and embedded pole and conductive seat thereof | |
| CN202076185U (en) | Transmission system of high voltage vacuum circuit breaker | |
| CN212725133U (en) | Switching high-parameter bus conversion current device | |
| CN212411927U (en) | High-voltage alternating-current gas-insulated circuit breaker closing resistor transmission structure | |
| CN205354944U (en) | High pressure vacuum circuit breaker and monopole thereof | |
| CN111755280A (en) | Double-column rotary isolating switch | |
| CN111725023A (en) | Switching high-parameter bus conversion current device | |
| KR101279894B1 (en) | Switch for solid insulated switchgear |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |