CN108565168A - The high-current switch device that double isolation knifes are arranged in juxtaposition - Google Patents
The high-current switch device that double isolation knifes are arranged in juxtaposition Download PDFInfo
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- CN108565168A CN108565168A CN201810378300.1A CN201810378300A CN108565168A CN 108565168 A CN108565168 A CN 108565168A CN 201810378300 A CN201810378300 A CN 201810378300A CN 108565168 A CN108565168 A CN 108565168A
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- groups
- station
- juxtaposition
- static contact
- entering spindle
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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
- H01H31/10—Interlocking mechanisms for interlocking two or more switches
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a kind of high-current switch devices that double isolation knifes are arranged in juxtaposition, including switch gear room, opposed, side-by-side arrangement a groups three-station and b group three-stations in the switch gear room, the a groups three-station includes a group entering spindles being rotationally connected in switch gear room, the b groups three-station includes the b group entering spindles being rotationally connected in switch gear room, the a groups entering spindle is arranged in parallel with b group entering spindles, the four-bar mechanism of a groups entering spindle symmetrical rotary synchronous with b group entering spindles can be driven by being equipped between a groups entering spindle and b group entering spindles.By using said program, two groups of low current switches are arranged symmetrically, can realize the through-current capability of high current, part universality is strong, does not lengthen main shaft, does not have to change three-phase centre distance, in switch conduction, heating conductor relative distribution is beneficial to the heat dissipation of conductor.
Description
Technical field
The present invention relates to electric switch technical field, more particularly to high-current switch device that double isolation knifes are arranged in juxtaposition.
Background technology
Medium-voltage switchgear most typically rated current specification is 1250A and 2500A.And the switch more than or equal to 2500A
The design difficulty of the three-station of device is greatly increased with difficulty of processing.The three of the switching device of rated current 2500A at present
Position switch generally requires special designing and solves through-flow and problem of temperature rise, not general with 1250A parts, needs individually designed.
Chinese patent publication No. CN102576621A discloses a kind of Medium voltage switch or circuit breaker with disconnect switch and three-position switch
Device provides a kind of a kind of three-station of double isolation knife parallel connections, and by a main shaft drives, double isolation knife plates are along main shaft
Direction arranges, and such arrangement, main shaft needs to lengthen, and torsion doubles, and the length of three-station also increases, A B C tri-
Phase centre distance will also increase, and cannot keep inconsistent with the three-phase centre-to-centre spacing of 1250A in this way, and the depth of switching device will also add
It is deep.Of course for making the three-phase centre-to-centre spacing of 1250A and 2500A be consistent, the centre-to-centre spacing of 1250A specifications can be increased, but
The space waste of 1250A specifications can be caused by doing so.The a collection of switching device being arranged in juxtaposition, often the cabinet of 2500A specifications only need 1
To 2, other cabinets more than tens are all 1250A specifications, that is to say, that in order to coordinate in consistent three-phase with several specification 2500A
The heart is away from needing remaining tens 1250A specification to change centre-to-centre spacing.In addition, this isolation knife arrangement in one line, conductor and lead
Contact point fever between body is concentrated, and the heat dissipation of three-station is influenced.
Invention content
It is general with part the object of the present invention is to provide a kind of high-current switch device that double isolation knifes are arranged in juxtaposition
Property is strong, does not lengthen main shaft, does not change three-phase centre distance, the big advantage of heat-dissipating space.
The present invention above-mentioned technical purpose technical scheme is that：
A kind of high-current switch device that double isolation knifes are arranged in juxtaposition, including switch gear room, opposed, side-by-side in the switch gear room
Arrange that a groups three-station and b group three-stations, a groups three-station include a groups being rotationally connected in switch gear room
Entering spindle, the b groups three-station include the b group entering spindles being rotationally connected in switch gear room, a groups entering spindle
Be arranged in parallel with b group entering spindles, between a groups entering spindle and b group entering spindles be equipped with can drive a groups entering spindle and
B group entering spindles synchronize the four-bar mechanism of symmetrical rotary.
By using said program, two groups of low current switches are arranged symmetrically, can realize the through-current capability of high current, part
It is versatile, main shaft is not lengthened, does not have to change three-phase centre distance, in switch conduction, heating conductor relative distribution is beneficial to
The heat dissipation of conductor.
As an improvement of the present invention, the four-bar mechanism include the first connecting lever being fixedly arranged in a group entering spindles,
The connecting rod connected between the second connecting lever, first connecting lever and the second connecting lever that are fixedly arranged in b group entering spindles, the connecting rod
Both ends are pivotally connected with the first connecting lever and the second connecting lever respectively, and drive link is also associated on first connecting lever.
By using said program, a groups entering spindle and b group entering spindles can be rotated synchronously, to drive three station of a groups
Switch and b group three-stations do symmetrical spinning movement, and the mechanism structure is simple, and processing and installation is convenient.
As an improvement of the present invention, static contact seat is installed in the switch gear room, the static contact seat includes being symmetrical arranged
The ends static contact seat a and the ends static contact seat b, a groups three-station be rotationally connected with static contact seat end, the b groups three-station
It is rotationally connected with the ends static contact seat b.
By using said program, a groups three-station and b group three-stations share a static contact seat, ensure that a groups
The fixing end of three-station and b group three-stations links together always, makes balanced current distribution in conducting, avoids
Local current is excessive to cause fever serious.
As an improvement of the present invention, when a groups three-station and b group three-stations turn to "on" position,
The a groups entering spindle axle center and the pivot joint axle center of connecting rod two end are point-blank.
By using said program, on the one hand such design can reduce driving mechanism when switch closing operation and drive the
On the other hand driving force needed for one connecting lever reduces a groups three-station and b groups three-station under short circuit current effect
To the reaction force of driving mechanism.
As an improvement of the present invention, it is installed on the medial surface in the switch gear room relative to a group three-stations
Grounding static contact.
It is being connect by using said program since a groups three-station and b group three-stations share a static contact seat
When ground, only need to a groups three-station be connect cooperation with grounding static contact can meet the requirement of ground connection dynamic and thermal stability parameter.
As an improvement of the present invention, the rated current specification of a groups three-station and b group three-stations is
1250A or 1600A or 2000A.
By using said program, it can realize that big rated current specification is 2500A with different rated current specifications
Or the through-current capability of 3150A or 4000A.
In conclusion the invention has the advantages that：
1, the present invention passes through four-bar mechanism reality using the three-station for two groups of low current specifications being arranged symmetrically side by side
Symmetrical spinning movement is now synchronized, to realize the through-current capability of high current, part universality is strong, and does not lengthen main shaft, does not change
Become three-phase centre distance；
2, when two groups of low current three-station conductings, heating conductor relative distribution is beneficial to the heat dissipation of conductor；
3, in "on" position, the pivot joint axle center of the group entering spindle axle center a and connecting rod two end point-blank, on the one hand
The driving force of driving mechanism is reduced when switching closing operation, on the other hand reduces by two groups of low current three-stations in short circuit current
To the reaction force of driving mechanism under effect.
Description of the drawings
Fig. 1 is the axonometric drawing for the high-current switch device that double isolation knifes are arranged in juxtaposition；
Fig. 2 is the sectional view for the high-current switch device isolated location that double isolation knifes are arranged in juxtaposition；
Fig. 3 is the sectional view of A-A in Fig. 2；
Fig. 4 is the front view for the high-current switch device isolated location that double isolation knifes are arranged in juxtaposition；
Fig. 5 is the sectional view for the high-current switch device conduction position that double isolation knifes are arranged in juxtaposition；
Fig. 6 is the front view for the high-current switch device conduction position that double isolation knifes are arranged in juxtaposition；
Fig. 7 is the sectional view for the high-current switch device earthing position that double isolation knifes are arranged in juxtaposition；
Fig. 8 is the front view for the high-current switch device earthing position that double isolation knifes are arranged in juxtaposition.
In figure, 1, switch gear room；2, the first connecting lever；21, the other end of the first connecting lever；3, the second connecting lever；4, connecting rod；5, it drives
Connecting rod；6, main bus-bar；7, static contact seat；71, the ends static contact seat a；72, the ends static contact seat b；8, integral type casing；9, grounding static contact；
10, axle bed；11, sealing seat；100, a groups three-station；101, a groups entering spindle；102, a groups shaft insulation；103, a groups knife
Plate；104, a groups upper static contact；200, b groups three-station；201, b groups entering spindle；202, b groups shaft insulation；203, b groups knife
Plate；204, b groups upper static contact.
Specific implementation mode
Below in conjunction with attached drawing, invention is further described in detail.
Embodiment：
Referring to Fig. 1, Fig. 2 and Fig. 3, a kind of high-current switch device that double isolation knifes are arranged in juxtaposition, including switch gear room 1, it opens
It closes 1 bottom of room and integral type casing 8 is installed, three groups of static contact seats 7 are installed in integral type casing 8, are arranged on static contact seat 7 quiet
The ends touch base a 71 and the ends static contact seat b 72 are equipped with a groups three-station 100 on the ends static contact seat a 71, are installed on the ends static contact seat b 72
Have b groups three-station 200,1 top of switch gear room that three groups of main bus-bars 6 are installed, be equipped on main bus-bar 6 respectively with three work of a groups
The a groups upper static contact 104 and b groups upper static contact 204 of 200 mating reaction of bit switch 100 and b groups three-station, stationary contact in a groups
First 104 arrange with 204 opposed, side-by-side of b groups upper static contact, on the medial surface in switch gear room 1 relative to a groups three-station 100
It is installed with three groups of grounding static contacts 9.
A groups three-station 100 includes a groups entering spindle 101 being rotationally connected in switch gear room 1, a group entering spindles
101 both ends are fixed by axle bed 10 and sealing seat 11 respectively, and axle bed 10 and sealing axis 11 are installed in switch gear room 1 relatively
Expose close to one end of sealing seat 11 on side, in a groups entering spindle 101 and is located at 1 outside of switch gear room, a groups entering spindle 101
It is upper to be fixedly connected with a groups shaft insulation 102 inside switch gear room 1, three groups of a group knife plates are uniformly installed on a groups shaft insulation 102
The bottom of 103, a group knife plates 103 is pivotally connected with the ends corresponding static contact seat a 71；B groups three-station 200 includes b group entering spindles
201, b groups shaft insulation 202, b groups knife plate 203 and b groups upper static contact 204, concrete structure and a groups three of b groups three-station 200
Position switch 100 is identical, and details are not described herein, and a groups three-station 100 is right on static contact seat 7 with b groups three-station 200
Title is arranged in juxtaposition.
The one end for being located at 1 outside of switch gear room in a groups entering spindle 101 is fixedly connected with the first connecting lever 2, is inputted in b groups
The one end for being located at 1 outside of switch on main shaft 201 is fixedly connected with the second connecting lever 3, is connected between the first connecting lever 2 and the second connecting lever 3
There are connecting rod 4, the both ends of connecting rod 4 to be pivotally connected respectively with the first connecting lever 2 and the second connecting lever 3, the first connecting lever 2 is in v fonts, in the first connecting lever
The other end 21 on be articulated with drive link 5, drive link 5 and driving mechanism (in figure for show) are connect.First connecting lever 2 connects
Bar 4, the second connecting lever 3, a groups entering spindle 101 and b groups entering spindle 201 form a four-bar mechanism, when in drive link 5
Under the action of a groups entering spindle 101 and b groups entering spindle 201 do almost symmetrical spinning movement.
Pass through when the high-current switch device for needing double isolation knifes being arranged in juxtaposition closes a floodgate referring to Fig. 4, Fig. 5 and Fig. 6
Drive link 5 drives the first connecting lever 2 to rotate clockwise, and the first connecting lever 2 rotates clockwise same in drive a groups entering spindle 101
When push connecting rod 4 that the second connecting lever 3 is driven to rotate counterclockwise, the second connecting lever 3 drives b groups entering spindle 201 to rotate counterclockwise simultaneously,
To which almost synchronous drive a groups three-station 100 and b groups three-station 200 carry out rotation so that a groups knife plate 103 and b groups
Knife plate 203 is realized with a groups upper static contact 104 and b groups upper static contact 204 close a floodgate respectively, after the completion of combined floodgate, the first connecting lever 2
The pivot joint axle center in axle center and 4 both ends of connecting rod is almost in line (dead-centre position), when such design switchs closing operation on the one hand
The driving force of driving mechanism is reduced, another facilitate reduces a groups three-station 100 and b groups three-station 200 in short circuit current
To the reaction force of driving mechanism under effect.
Pass through driving when the high-current switch device for needing double isolation knifes being arranged in juxtaposition is grounded referring to Fig. 7 and Fig. 8
Connecting rod 5 drives the first connecting lever 2 to rotate counterclockwise, and the first connecting lever 2 is drawn while driving a groups entering spindle 101 to rotate counterclockwise
Dynamic connecting rod 4 drives the second connecting lever 3 to rotate clockwise, and the second connecting lever 3 drives b groups entering spindle 201 to rotate clockwise simultaneously, to
Almost synchronous drive a groups three-station 100 and b groups three-station 200 carry out after rotating first separating brake, are making a group knife plates
103 connect with grounding static contact 9 and are grounded.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, people in the art
Member can as needed make the present embodiment the modification of not creative contribution after reading this specification, but as long as at this
It is all protected by Patent Law in the right of invention.
Claims (6)
1. a kind of high-current switch device that double isolation knifes are arranged in juxtaposition, including switch gear room (1), which is characterized in that the switch
The interior opposed, side-by-side arrangement a groups three-station (100) in room (1) and b groups three-station (200), a groups three-station
(100) include a groups entering spindle (101) being rotationally connected in switch gear room (1), the b groups three-station (200) includes turning
The dynamic b groups entering spindle (201) being connected in switch gear room (1), a groups entering spindle (101) and b groups entering spindle (201)
It is arranged in parallel, a groups entering spindle (101) can be driven by being equipped between a groups entering spindle (101) and b groups entering spindle (201)
The four-bar mechanism of symmetrical rotary synchronous with b groups entering spindle (201).
2. the high-current switch device that double isolation knifes according to claim 1 are arranged in juxtaposition, which is characterized in that described four connect
Linkage includes the first connecting lever (2) being fixedly arranged in a groups entering spindle (101), be fixedly arranged in b groups entering spindle (201) the
The connecting rod (4) connected between two connecting levers (3), first connecting lever (2) and the second connecting lever (3), the both ends difference of the connecting rod (4)
It is pivotally connected with the first connecting lever (2) and the second connecting lever (3), drive link (5) is also associated on first connecting lever (2).
3. the high-current switch device that double isolation knifes according to claim 1 or 2 are arranged in juxtaposition, which is characterized in that described
It is installed with static contact seat (7) in switch gear room (1), the static contact seat (7) includes the ends symmetrically arranged static contact seat a (71) and static contact seat b
It holds (72), a groups three-station (100) is rotationally connected with 1 end of static contact seat (71), and the b groups three-station (200) turns
It is dynamic to be connected to the ends static contact seat b (72).
4. the high-current switch device that double isolation knifes according to claim 3 are arranged in juxtaposition, which is characterized in that when a groups three
When position switch (100) and b groups three-station (200) turn to "on" position, a groups entering spindle (101) axle center with
The pivot joint axle center at connecting rod (4) both ends is point-blank.
5. the high-current switch device that double isolation knifes according to claim 4 are arranged in juxtaposition, which is characterized in that the switch
Grounding static contact (9) is installed on medial surface on room (1) relative to a groups three-station (100).
6. the high-current switch device that double isolation knifes according to claim 4 are arranged in juxtaposition, which is characterized in that a groups
The rated current specification of three-station (100) and b groups three-station (200) is 1250A or 1600A or 2000A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810378300.1A CN108565168A (en) | 2018-04-25 | 2018-04-25 | The high-current switch device that double isolation knifes are arranged in juxtaposition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810378300.1A CN108565168A (en) | 2018-04-25 | 2018-04-25 | The high-current switch device that double isolation knifes are arranged in juxtaposition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108565168A true CN108565168A (en) | 2018-09-21 |
Family
ID=63536478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810378300.1A Withdrawn CN108565168A (en) | 2018-04-25 | 2018-04-25 | The high-current switch device that double isolation knifes are arranged in juxtaposition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108565168A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114976982A (en) * | 2022-04-25 | 2022-08-30 | 北京清畅电力技术股份有限公司 | Multi-functional two isolator equipment of environmental protection gas insulation |
-
2018
- 2018-04-25 CN CN201810378300.1A patent/CN108565168A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114976982A (en) * | 2022-04-25 | 2022-08-30 | 北京清畅电力技术股份有限公司 | Multi-functional two isolator equipment of environmental protection gas insulation |
| CN114976982B (en) * | 2022-04-25 | 2023-01-10 | 北京清畅电力技术股份有限公司 | Multi-functional two isolator equipment of environmental protection gas insulation |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180921 |