CN109755051A - A kind of switching selector of compound type vacuum arc extinguishing on-load voltage regulating switch - Google Patents
A kind of switching selector of compound type vacuum arc extinguishing on-load voltage regulating switch Download PDFInfo
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- CN109755051A CN109755051A CN201910079719.1A CN201910079719A CN109755051A CN 109755051 A CN109755051 A CN 109755051A CN 201910079719 A CN201910079719 A CN 201910079719A CN 109755051 A CN109755051 A CN 109755051A
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- dipole inversion
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Abstract
The invention discloses a kind of switching selectors of compound type vacuum arc extinguishing on-load voltage regulating switch, realize that compound type vacuum arc extinguishing on-load voltage regulation switch of power transformer is transformed into positive and negative tune pressure by linear voltage regulation, the switching selector includes: dipole inversion operating mechanism, dipole inversion contact assembly, K point transition contact component, transition slip ring assembly；The present invention uses top load arrangement, and unique structure does not destroy its script structure linearly adjusted；Structure is simple, makes simplified manufacturing process, and mechanical structure is reliable, and movement is accurate, and the security reliability of product is ensured；Whole slip ring realizes decomposable structure, guarantees that the conversion of K point does not power off, at the same be also equipped with can core-pulling function, facilitate maintenance maintenance, save maintenance cost.
Description
Technical field
The present invention relates to transformer switch technologies, especially provide a kind of switching of compound type vacuum arc extinguishing on-load voltage regulating switch
Selector.
Background technique
The on-load voltage regulating switch of electric system for transformer is divided into oil-blast switch and two kinds of vacuum switch substantially at present.
In recent years Vacuum Relay Technique is quickly grown, and manufacturing technology level and product quality are greatly improved, and can satisfy domestic electricity
The needs of power development.With the increase of labor cost and the increase of environmentally friendly cost, the entire life cycle of vacuum loaded switch
Advantage is more and more obvious, and there are also the increase of renewable energy ratio, the development of smart grid, the demand that voltage is adjusted be will increase,
The number of operations of loaded switch also will increase, and it is a trend that vacuum switch, which substitutes oil-blast switch,.
Vacuum switch is divided into linear tune by regulating circuit, positive to demodulate, and three kinds of thickness tune.External German company and the country
Ji Jia big companies have produced corresponding product, but most of positive and negative tune switch is all based on oil-blast switch improved
Have M type and VV type, their switch basic structure is similar, and volume is big, and structure is complicated, and to processing technology, assembly technology and
Material requirements is very high.Have in 10kv route there are no vacuum and carries positive and negative tune switch product.
Summary of the invention
The purpose of the present invention is to provide a kind of switching selectors of compound type vacuum arc extinguishing on-load voltage regulating switch, make V-type
Vacuum switch (i.e. combined switch) is transformed into positive and negative tune pressure by linear voltage regulation.Its structure is simple, easy to process, mechanical structure
Reliably, stable, whole slip ring realizes decomposable structure, in order to the maintenance of core pulling in the future.It is that V-type compound type vacuum switchs just
Demodulate a kind of brand new of pressure regulation.
The technical scheme is that a kind of switching selector of compound type vacuum arc extinguishing on-load voltage regulating switch, is realized multiple
Box-like vacuum arc-extinguishing on-load voltage regulation switch of power transformer is transformed into positive and negative tune pressure, the switching selector packet by linear voltage regulation
It includes: dipole inversion operating mechanism 1, dipole inversion contact assembly 2, K point transition contact component 3, transition slip ring assembly 4；
The dipole inversion operating mechanism 1 includes lockwheel terminal pad 1-1, dipole inversion fixing axle 1-2, polarity limited block 1-
3, polarity shift fork 1-4, dipole inversion support plate 1-5, polarity driving lever 1-6, dipole inversion axis 1-7；Main shaft II 7 is fixed on polarity and turns
It changes on axis 1-7 and is plugged on main shaft I 5；The lockwheel terminal pad 1-1 is fixed on main shaft I 5 to be rotated together with main shaft I 5, institute
State lockwheel terminal pad 1-1 include basal disc 1-1a, set on the upper layer basal disc 1-1a notched annular stop platform 1-1b, be set to basal disc
The idler wheel 1-1c of 1-1a lower layer；The polarity limited block 1-3 is set to above polarity shift fork 1-4, and the polarity driving lever 1-6 is set to pole
Property shift fork 1-4 below, the polarity limited block 1-3, polarity shift fork 1-4, polarity driving lever 1-6 pass through dipole inversion fixing axle 1-2
It is connected to 6 lower section of bottom plate；The front polarity limited block 1-3 is equipped with 3 downward retention bead 1-3a, the retention bead 1-
Limit is realized in 3a and notched annular stop platform 1-1b cooperation；The front polarity shift fork 1-4 is equipped with gap 1-4a, described to slit
Mouth 1-4a and idler wheel 1-1c cooperation, which is realized, stirs；The front polarity driving lever 1-6 is equipped with downward shifting block 1-6a；The polarity turns
It changes support plate 1-5 and is equipped with the pulling hole 1-5a cooperated with shifting block 1-6a；
The dipole inversion contact assembly 2 includes polarity moving contact 2-1, polarity fixed contact 2-2, I 2-3 of insulating disc；It is described
Polarity moving contact 2-1 quantity is 3, is fixed on I 2-3 circumferential position of insulating disc at equal intervals；The polarity fixed contact 2-2 quantity is
3 groups, it is fixed on 8 circumferential position of insulated enclosure cylinder at equal intervals；
The K point transition contact component 3 includes K point transition contact 3-1, K point transition fixed contact 3-2, II 3-3 of insulating disc；
The K point transition contact 3-1 quantity is 3, is fixed on II 3-3 circumferential position of insulating disc at equal intervals；The K point transition fixed contact
3-2 quantity is 3, is fixed on 8 circumferential position of insulated enclosure cylinder at equal intervals；
The dipole inversion support plate 1-5 is connected on dipole inversion axis 1-7 by bearing element, the dipole inversion branch
Support plate 1-5, I 2-3 of insulating disc, II periphery 3-3 of insulating disc connect to form insulating cylinder body；
The transition slip ring assembly 4 includes the 3 layers of transition slip ring 4-1 to be linked into an integrated entity by insulation strip 4-2, the transition
The both ends slip ring 4-1 are equipped with spring compression contact 4-3, and the slip ring fixed block 9-1 of slip ring 9 is pressed in by spring compression contact 4-3
On.
Preferably, the polarity limited block 1-3, polarity shift fork 1-4, polarity driving lever 1-6 are integrally formed.
Structural principle of the invention is: when main shaft I 5 turns to K point, dipole inversion operating mechanism 1 is in main shaft I 5
Lower rotation is driven, drives dipole inversion contact assembly 2 and K point transition contact component 3 to rotate, polarity moving contact 2-1 is fixed from polarity
It disconnects in contact 2-2 "+" and being combined with polarity fixed contact 2-2 " K-K ", K point transition contact 3-1 and K point transition fixed contact 3-2 are tied
It closes, when main shaft I 5 is rotated away from from K point, polarity moving contact 2-1 is disconnected from polarity fixed contact 2-2 " K-K " and being touched surely with polarity
Head 2-2 "-" combines, and K point transition contact 3-1 and K point transition fixed contact 3-2 are disconnected and completed dipole inversion.
The present invention has following beneficial effect:
The present invention uses top load arrangement, and unique structure does not destroy its script structure linearly adjusted；Structure is simple, makes to make
It makes technique to simplify, mechanical structure is reliable, and movement is accurate, and the security reliability of product is ensured；Whole slip ring is realized decomposable
Structure guarantees that the conversion of K point does not power off, at the same be also equipped with can core-pulling function, facilitate maintenance maintenance, save maintenance cost.
Detailed description of the invention
Fig. 1 is scheme of installation of the invention；
Fig. 2 is the partial enlarged view of Fig. 1；
Fig. 3 is structural representation Fig. 1 of dipole inversion operating mechanism in the present invention；
Fig. 4 is structural representation Fig. 2 of dipole inversion operating mechanism in the present invention；
Fig. 5 is structural representation Fig. 3 of dipole inversion operating mechanism in the present invention；
Fig. 6 is the structural schematic diagram of lockwheel terminal pad in the present invention；
Fig. 7 is the structural schematic diagram of dipole inversion contact assembly in the present invention；
Fig. 8 is the structural schematic diagram of K point transition contact component in the present invention；
Fig. 9 is the elevation of transition slip ring assembly in the present invention；
Figure 10 is the plan view of transition slip ring assembly in the present invention；
Figure 11 is the wiring diagram of each contact and switch in the present invention；
Figure 12 is the electric wave figure of each contact in the present invention；
In figure: 1, dipole inversion operating mechanism；1-1, lockwheel terminal pad；1-1a, basal disc；1-1b, notched annular limit
Position platform；1-1c, idler wheel；1-2, dipole inversion fixing axle；1-3, polarity limited block；1-3a, retention bead；1-4, polarity shift fork；
1-4a, gap；1-5, dipole inversion support plate；1-5a, pulling hole；1-6, polarity driving lever；1-6a, shifting block；1-7, dipole inversion axis；
2, dipole inversion contact assembly；2-1, polarity moving contact；2-2, polarity fixed contact；2-3, insulating disc I；3, K point transition contact group
Part；3-1, K point transition contact；3-2, K point transition fixed contact；3-3, insulating disc II；4, transition slip ring assembly；4-1, transition are sliding
Ring；4-2, insulation strip；4-3, spring compression contact；5, main shaft I；6, bottom plate；7, main shaft II；8, insulated enclosure cylinder；9, slip ring；9-
1, slip ring fixed block；10, driving mechanism；11, contact assembly；12, disconnecting mechanism；13, seal box.
Specific embodiment
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in figs. 1-12, a kind of switching selector of compound type vacuum arc extinguishing on-load voltage regulating switch realizes that combined type is true
Empty arc extinguishing on-load voltage regulation switch of power transformer is transformed into positive and negative tune pressure by linear voltage regulation, and switching selector includes: that polarity turns
Change operating mechanism 1, dipole inversion contact assembly 2, K point transition contact component 3, transition slip ring assembly 4；
Dipole inversion operating mechanism 1 includes lockwheel terminal pad 1-1, dipole inversion fixing axle 1-2, polarity limited block 1-3, pole
Property shift fork 1-4, dipole inversion support plate 1-5, polarity driving lever 1-6, dipole inversion axis 1-7；Main shaft II 7 is fixed on dipole inversion axis
1-7 is upper and is plugged on main shaft I 5；Lockwheel terminal pad 1-1 is fixed on main shaft I 5 and rotates together with main shaft I 5, lockwheel terminal pad
1-1 include basal disc 1-1a, set on the notched annular stop platform 1-1b on the upper layer basal disc 1-1a, set on the rolling of basal disc 1-1a lower layer
Take turns 1-1c；Polarity limited block 1-3 is set to above polarity shift fork 1-4, and polarity driving lever 1-6 is set to below polarity shift fork 1-4, polarity limit
Position block 1-3, polarity shift fork 1-4, polarity driving lever 1-6 are connected to 6 lower section of bottom plate by dipole inversion fixing axle 1-2；Polarity limit
It is real that the front block 1-3 is equipped with 3 downward retention bead 1-3a, retention bead 1-3a and notched annular stop platform 1-1b cooperation
Now limit；The polarity front shift fork 1-4 is equipped with gap 1-4a, gap 1-4a and idler wheel 1-1c cooperation realization and stirs；Polarity driving lever 1-6
Front is equipped with downward shifting block 1-6a；Dipole inversion support plate 1-5 is equipped with the pulling hole 1-5a cooperated with shifting block 1-6a；
Dipole inversion contact assembly 2 includes polarity moving contact 2-1, polarity fixed contact 2-2, I 2-3 of insulating disc；The dynamic touching of polarity
Head 2-1 quantity is 3, is fixed on I 2-3 circumferential position of insulating disc at equal intervals；Polarity fixed contact 2-2 quantity is 3 groups, solid at equal intervals
Due to 8 circumferential position of insulated enclosure cylinder；
K point transition contact component 3 includes K point transition contact 3-1, K point transition fixed contact 3-2, II 3-3 of insulating disc；K point mistake
Crossing contact 3-1 quantity is 3, is fixed on II 3-3 circumferential position of insulating disc at equal intervals；K point transition fixed contact 3-2 quantity is 3,
It is fixed on 8 circumferential position of insulated enclosure cylinder at equal intervals；Connected between polarity moving contact 2-1 and K point transition contact 3-1 with soft line
It connects；
Dipole inversion support plate 1-5 is connected on dipole inversion axis 1-7 by bearing element, dipole inversion support plate 1-5,
I 2-3 of insulating disc, II periphery 3-3 of insulating disc connect to form insulating cylinder body；
Transition slip ring assembly 4 includes the 3 layers of transition slip ring 4-1, transition slip ring 4-1 to be linked into an integrated entity by insulation strip 4-2
Both ends are equipped with spring compression contact 4-3, are pressed on the slip ring fixed block 9-1 of slip ring 9 by spring compression contact 4-3.Transition
Three-phase transition slip ring 4-1 is done a same entirety of imaging ladder, is inserted from top to bottom by slip ring assembly 4 using insulation strip 4-2
Enter switch, is connect using the mode of spring compression contact 4-3 with switch slip ring 9, form it into a closing slip ring.Switch is set to exist
While any gear does not power off, it can also realize that core pulling is safeguarded.
Polarity limited block 1-3, polarity shift fork 1-4, polarity driving lever 1-6 are integrally formed, under the stirring of lockwheel terminal pad 1-1
Rotation drives dipole inversion support plate 1-5 rotation, and polarity moving contact 2-1 and K point transition contact 3-1 rotation is to complete polarity
Conversion.
The switching selector of compound type vacuum arc extinguishing on-load voltage regulating switch of the present invention, lockwheel terminal pad 1-1 and polarity are dialled
It pitches 1-4 and uses lockwheel structure and limited position mechanism, movement is accurate, will not generate angular deviation.
When main shaft I 5 turns to K point, lockwheel terminal pad 1-1 stirs polarity shift fork 1-4 under the driving of main shaft I 5, thus
Polarity driving lever 1-6 drives dipole inversion support plate 1-5 rotation, and polarity moving contact 2-1 and K point transition contact 3-1 is from initial position
Turn to the middle position (complete polarity switching device from+to the conversion of K) of K point.Wherein transition slip ring 4-1 ensure that conversion process
Do not power off (transition slip ring 4-1 is connect with K point transition fixed contact 3-2).Due to only being used in the conversion of K point, so not needing
Long-term conductive, the spring compression contact 4-3 of transition slip ring 4-1 can guarantee its thermal stability.
Core pulling process of the present invention is as follows:
1, by bottom plate 6 from seal box 13 from taking-up.
2, the whole taking-up for forming dipole inversion support plate 1-5 and fixed insulating disc 2-3, insulating disc 3-3.
3, transition slip ring assembly 4 is taken out.
4, the position of main axis to transition slip ring assembly 4 is taken out.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.
Claims (2)
1. a kind of switching selector of compound type vacuum arc extinguishing on-load voltage regulating switch realizes compound type vacuum arc extinguishing power transformer
On-load voltage regulating switch is transformed into positive and negative tune pressure by linear voltage regulation, which is characterized in that the switching selector includes: dipole inversion
Operating mechanism (1), dipole inversion contact assembly (2), K point transition contact component (3), transition slip ring assembly (4)；
The dipole inversion operating mechanism (1) includes lockwheel terminal pad (1-1), dipole inversion fixing axle (1-2), polarity limited block
(1-3), polarity shift fork (1-4), dipole inversion support plate (1-5), polarity driving lever (1-6), dipole inversion axis (1-7)；Main shaft II
(7) it is fixed on dipole inversion axis (1-7) and is plugged on main shaft I (5)；The lockwheel terminal pad (1-1) is fixed on main shaft I
(5) it is rotated together on main shaft I (5), the lockwheel terminal pad (1-1) includes basal disc (1-1a), is set to the upper layer basal disc (1-1a)
Notched annular stop platform (1-1b), be set to basal disc (1-1a) lower layer idler wheel (1-1c)；The polarity limited block (1-3)
Above polarity shift fork (1-4), the polarity driving lever (1-6) is set to below polarity shift fork (1-4), the polarity limited block
(1-3), polarity shift fork (1-4), polarity driving lever (1-6) are connected to below bottom plate (6) by dipole inversion fixing axle (1-2)；Institute
The polarity limited block front (1-3) is stated equipped with 3 downward retention beads (1-3a), the retention bead (1-3a) with it is notched
Limit is realized in annular stop platform (1-1b) cooperation；The polarity shift fork front (1-4) is equipped with gap (1-4a), the gap (1-
It 4a) realizes and stirs with idler wheel (1-1c) cooperation；The polarity driving lever front (1-6) is equipped with downward shifting block (1-6a)；The pole
Property conversion support plate (1-5) be equipped with the pulling hole (1-5a) that cooperates with shifting block (1-6a)；
The dipole inversion contact assembly (2) includes polarity moving contact (2-1), polarity fixed contact (2-2), insulating disc I (2-3)；
Polarity moving contact (2-1) quantity is 3, is fixed on insulating disc I (2-3) circumferential position at equal intervals；The polarity fixed contact
(2-2) quantity is 3 groups, is fixed on insulated enclosure cylinder (8) circumferential position at equal intervals；
The K point transition contact component (3) includes K point transition contact (3-1), K point transition fixed contact (3-2), II (3- of insulating disc
3)；K point transition contact (3-1) quantity is 3, is fixed on insulating disc II (3-3) circumferential position at equal intervals；The K point mistake
Crossing fixed contact (3-2) quantity is 3, is fixed on insulated enclosure cylinder (8) circumferential position at equal intervals；
The dipole inversion support plate (1-5) is connected on dipole inversion axis (1-7) by bearing element, the dipole inversion branch
Support plate (1-5), insulating disc I (2-3), the periphery insulating disc II (3-3) connect to form insulating cylinder body；
The transition slip ring assembly (4) includes the 3 layers of transition slip ring (4-1) to be linked into an integrated entity by insulation strip (4-2), the mistake
The slip ring both ends (4-1) are crossed equipped with spring compression contact (4-3), the slip ring of slip ring (9) is pressed in by spring compression contact (4-3)
On fixed block (9-1).
2. a kind of switching selector of compound type vacuum arc extinguishing on-load voltage regulating switch described in accordance with the claim 1, feature exist
In the polarity limited block (1-3), polarity shift fork (1-4), polarity driving lever (1-6) are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910079719.1A CN109755051B (en) | 2019-01-28 | 2019-01-28 | Switching selector of combined type vacuum arc extinction on-load voltage regulating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910079719.1A CN109755051B (en) | 2019-01-28 | 2019-01-28 | Switching selector of combined type vacuum arc extinction on-load voltage regulating switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109755051A true CN109755051A (en) | 2019-05-14 |
| CN109755051B CN109755051B (en) | 2023-09-05 |
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ID=66406367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910079719.1A Active CN109755051B (en) | 2019-01-28 | 2019-01-28 | Switching selector of combined type vacuum arc extinction on-load voltage regulating switch |
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| Country | Link |
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| CN (1) | CN109755051B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116504578A (en) * | 2023-04-10 | 2023-07-28 | 上海交通大学 | Vacuum on-load tap changer and voltage regulating method |
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| CN116504578B (en) * | 2023-04-10 | 2024-04-26 | 上海交通大学 | Vacuum on-load tap changer and voltage regulating method |
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| Publication number | Publication date |
|---|---|
| CN109755051B (en) | 2023-09-05 |
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