CN106935426B - A kind of and mating polarity reversing switch of load ratio bridging switch - Google Patents
A kind of and mating polarity reversing switch of load ratio bridging switch Download PDFInfo
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- CN106935426B CN106935426B CN201710184536.7A CN201710184536A CN106935426B CN 106935426 B CN106935426 B CN 106935426B CN 201710184536 A CN201710184536 A CN 201710184536A CN 106935426 B CN106935426 B CN 106935426B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/0005—Tap change devices
- H01H9/0016—Contact arrangements for tap changers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
- H01F29/04—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Keying Circuit Devices (AREA)
Abstract
The invention discloses a kind of and mating polarity reversing switches of load ratio bridging switch, and the first static contact, the second static contact, third static contact, the 4th static contact, circumference of the 5th static contact successively along insulating supporting disk are spacedly distributed；First moving contact, the second moving contact are sequentially distributed in the circumference along insulation turntable；The insulation turntable is the same center of circle with insulating supporting disk, and the moving contact to insulate on turntable can be in contact by rotation with the first static contact, the second static contact, third static contact, the 4th static contact, the 5th static contact on insulating supporting disk；There are two position, a corresponding positive polarity, a corresponding negative polarity to increase the operating position number of transformer, pressure regulator, and increase the range of pressure regulation series for independent polarity reversing switch designed by the present invention；The polarity reversing switch that the present invention designs carries out dipole inversion under equipotential, and does not cut off electric current when conversion.
Description
Technical field
The invention belongs to transformer technology fields, are used cooperatively with on-load tap changers of transformers, more particularly to it is a kind of with
The mating polarity reversing switch of load ratio bridging switch.
Background technology
In 35KV or less power transformers and pressure regulator, the oil blast and vacuum extinction load ratio bridging switch used, greatly
Part is without polarity selector, and the quantity of tap is the tapping gear number of transformer and pressure regulator in tap switch, by point
Connecing the influence of switch fixed position number causes the operating position number of transformer, pressure regulator limited, to limit regulation precision.
Invention content
In view of the above-mentioned deficiencies in the prior art, the present invention provides a kind of suitable for oil-immersed transformer and pressure regulation
Device is used cooperatively, independent polarity reversing switch with no polarity selector load ratio bridging switch.
A kind of and mating polarity reversing switch of load ratio bridging switch, insulation turntable, insulating supporting disk, shaft；It is described exhausted
Edge turntable and insulating supporting disk are the same center of circle, and the insulation turntable is arranged by shaft on the top of insulating supporting disk, described
At least 1 moving contact group is set on insulation turntable, and the moving contact group includes 2 moving contacts, and 2 moving contacts are respectively
First moving contact and the second moving contact；At least 1 static contact group is set on the insulating supporting disk, and the static contact group includes
5 static contacts, 5 static contacts are respectively the first static contact, the second static contact, third static contact, the 4th static contact, the 5th
Static contact；
First static contact, the second static contact, third static contact, the 4th static contact, the 5th static contact are successively along insulation
The circumference of support plate is spacedly distributed；The circumference of first moving contact, the second moving contact successively along insulation turntable divides at equal intervals
Cloth；And
The first moving contact to insulate on turntable can be with the first static contact, the second stationary contact on insulating supporting disk by rotation
Head, third static contact are in contact；The second moving contact to insulate on turntable can be quiet with the third on insulating supporting disk by rotation
Contact, the 4th static contact, the 5th static contact are in contact.
Further, further include load ratio bridging switch and winding, described to have winding include main winding and tap winding, tap
Multiple taps are provided on winding, the load ratio bridging switch includes the 1st grade of tap switch, tap switch maximum and tap
Moving contact.
Further, further include load ratio bridging switch and winding, it is described that have winding include public winding and tap winding, point
It connects and is provided with multiple taps on winding, the load ratio bridging switch includes the 1st grade of tap switch, tap switch maximum and divides
Connect moving contact.
Further, which is connected with load ratio bridging switch including positive polarity position and negative polarity position；
When positive polarity position, the first static contact is connected by the first moving contact with the second static contact, first stationary contact
Head is connected with one end of main winding, and second static contact is connected for the 1st grade with the tap switch of load ratio bridging switch；It is described
Third static contact is connected by the second moving contact with the 4th static contact, point of the 4th static contact and load ratio bridging switch 18
Moving contact is connect to be connected；The electric current pass sequentially through main winding, the first static contact, the first moving contact, the second static contact, tap around
Current channel when group, the 4th static contact, the second moving contact, third static contact formation first position；
When negative polarity position, the 4th static contact is connected by the second moving contact with the 5th static contact, the 4th stationary contact
Head is connected with the tap moving contact of load ratio bridging switch, the 5th static contact and the first static contact short circuit, and the 5th
Static contact is connected with one end of main winding；Second static contact is connected by the first moving contact with third static contact, and second is quiet
Contact is connected for the 1st grade with the tap switch of load ratio bridging switch；The electric current passes sequentially through main winding, the first static contact,
Five static contacts, the second moving contact, the 4th static contact, tap winding, the second static contact, the first moving contact, third static contact are formed
The current channel when second position.
Further, the positive polarity position can also be：
First static contact is connected by the first moving contact with the second static contact, the first static contact and load ratio bridging switch
Tap moving contact is connected；Third static contact is connected by the second moving contact with the 4th static contact, third static contact and has load
The tap switch maximum of tap switch is connected, and the 4th static contact is connected with one end of public winding, described public
Another termination neutral point of winding；The electric current pass sequentially through the second static contact, the first moving contact, the first static contact, tap around
Electric current when group, third static contact, the second moving contact, the 4th static contact, public winding and Winding tap form first position leads to
Road；
The negative polarity position can also be：
4th static contact is connected by the second moving contact with the 5th static contact, one end of the 4th static contact and public winding
It is connected, another termination neutral point of the public winding, the 5th static contact and the first static contact short circuit, the first static contact
It is connected with the tap moving contact of load ratio bridging switch；Second static contact is connected by the first moving contact with third static contact,
The tap switch maximum of third static contact load ratio bridging switch；The electric current pass sequentially through the second static contact, the first moving contact,
Third static contact, tap winding, the first static contact, the 5th static contact, the second moving contact, the 4th static contact, public winding and around
Current channel when group lifts one's head to form the second position.
Further, it is provided with motor drive mechanism and bridge joint small contact on the insulation turntable, is set on the insulating supporting disk
It is equipped with position contact.
Further, first moving contact and the second moving contact respectively include two bridge contacts, the bridge contacts
Length can only connect adjacent two static contact；The total length of described two bridge contacts can connect three adjacent static contacts.
Further, 3 moving contact groups are provided on the insulation turntable, be provided on the insulating supporting disk 3 it is quiet
Sets of contacts.
Compared with prior art, the present invention has the following technical effects：
There are two position, a corresponding positive polarity, a corresponding cathode for independent polarity reversing switch designed by the present invention
Property, select the operating position number of transformer after converter, pressure regulator to become+1 (n of 2 × (n-1) from original n using the polarity
For load ratio bridging switch operating position number), pressure regulation series is ± 2 × (n-1), increases the operating position of transformer, pressure regulator
Number, and increase the range of pressure regulation series；The polarity reversing switch that the present invention designs carries out dipole inversion under equipotential, and
And do not cut off electric current when converting.
Description of the drawings
Fig. 1 is the structural schematic diagram of the polarity reversing switch of the present invention；
Fig. 2 is the side view of the polarity reversing switch of the present invention；
The electronic allocating slot mechanism structure schematic diagrames of Fig. 3；
The electronic allocating slot mechanism overlooking structure diagrams of Fig. 4；
Fig. 5 polarity reversing switch positive polarity transformer principle schematic diagrames；
Fig. 6 polarity reversing switch reversed polarity transformer principle schematic diagrames；
Fig. 7 polarity reversing switch positive polarity automatic coupling voltage regulator principle schematics；
Fig. 8 polarity reversing switch reversed polarity automatic coupling voltage regulator principle schematics；
Fig. 9 moving contact group structural schematic diagrams.
Figure label is represented as：1-insulation turntable；2-insulating supporting disks；3-the first moving contact；4-the second moving contact；
5-the first static contact；6-the second static contact；7-third static contacts；8-the four stationary contact；9-the five static contact；10-bridge joints
Small contact；11-positions contact；12-motor drive mechanisms；13-slot poking wares；14-AC gear motors；15-mounting plates；16—
Slotted disk；17-slotted disks position circular arc；18-load ratio bridging switches；The 1st grade of 19-tap switches；20-windings；21-tap around
Group；22-polarity reversing switches；23-tap switch maximums；24-bridge contacts；25-tap moving contacts；26-windings go out
Head；27-main windings；28-public windings.
Specific implementation mode
The present invention is described in more detail with reference to the accompanying drawings and detailed description.
Polarity reversing switch disclosed by the invention is suitable for oil-immersed transformer and pressure regulator, is opened with no dipole inversion
What the load ratio bridging switch of pass was used cooperatively, independent polarity reversing switch, two positions of the polarity reversing switch, a correspondence
Positive polarity, a corresponding negative polarity, four terminals of the polarity reversing switch are divided into two groups every group two.One of the present invention
When position, one group of two terminals are in another group of two terminals and correspond conducting state；When another position,
One group of two terminals exchange correspondence with another group of two terminals, and conducting state is answered in cross-pair one by one.
Using transformer, the pressure regulator of the polarity reversing switch of the present invention, load ratio bridging switch conventional products may be selected not
Any change need to be done.Operating position number is 2 × (n-1)+1 (n is load ratio bridging switch operating position number), pressure regulation series is ±
2×(n-1).When two position conversions, four terminals are under equipotential.And do not cut off electric current when two position conversions.
Embodiment 1
A kind of and mating polarity reversing switch of load ratio bridging switch is present embodiments provided, as shown in Figure 1, including insulation
Turntable 1, insulating supporting disk 2, shaft；The insulation turntable 1 is the same center of circle with insulating supporting disk 2, and the insulation turntable 1 passes through
Shaft, which is arranged on the top of insulating supporting disk 2, the insulation turntable 1, is arranged at least 1 moving contact group, the moving contact group
Including 2 moving contacts, 2 moving contacts are respectively the first moving contact 3 and the second moving contact 4；It is set on the insulating supporting disk 2
Set at least 1 static contact group, the static contact group includes 5 static contacts, 5 static contacts be respectively the first static contact 5,
Second static contact 6, third static contact 7, the 4th static contact 8, the 5th static contact 9；
First static contact 5, the second static contact 6, third static contact 7, the 4th static contact 8, the 5th static contact 9 edge successively
The circumference of insulating supporting disk 2 is spacedly distributed；First moving contact 3, the second moving contact 4 are successively along the circumference of insulation turntable 1
It is spacedly distributed；
Insulate turntable 1 on the first moving contact 3 by shaft rotation can on insulating supporting disk the first static contact 5,
Second static contact 6, third static contact 7 are in contact；The second moving contact 4 to insulate on turntable 1 can be with insulation by shaft rotation
Third static contact 7, the 4th static contact 8, the 5th static contact 9 in support plate are in contact.
It is provided with motor drive mechanism 12 and bridge joint small contact 10 on the insulation turntable 1, is provided on the insulating supporting disk 2
Position contact 11.
Motor drive mechanism 12 drives insulation turntable 1 to rotate by rotating shaft, moves insulation turntable 1 and drives the first moving contact 3, the
Two moving contacts, 4 opposing insulation support plate 2 is swung.It bridges small contact 10 and is mounted on insulation turntable 1, position contact 11 is located in absolutely
In edge support plate 2, the first moving contact 3 and the second moving contact 4 can be made by bridging the signal of small contact 10 and the feedback of position contact 11
Accurately it is parked in two polar sites.
Embodiment 2
The present embodiment further includes load ratio bridging switch 18 and winding 20 on the basis of embodiment 1, and the winding 20 includes
Main winding 27 and tap winding 21, tap and are provided with multiple taps on winding 21, and the load ratio bridging switch 18 includes tap
The 1st grade 19 of switch, tap switch maximum 23 and tap moving contact 25.
As shown in Figure 5 to Figure 6, it is tapped in the present embodiment on winding 21 and is provided with 9 taps, load ratio bridging switch 18 is set
9 gears are equipped with, are topmost the 1st grade 19 of tap switch, 9 grades of bottom is tap switch maximum 23.
Embodiment 3
The present embodiment further includes load ratio bridging switch 18 and winding 20 on the basis of embodiment 1, and the winding 20 includes
Public winding 28 and tap winding 21, tap and are provided with multiple taps on winding 21, and the load ratio bridging switch 18 includes point
Connect the 1st grade 19 of switch, tap switch maximum 23 and tap moving contact 25.
It is tapped as shown in Fig. 7 to Fig. 8, in the present embodiment on winding 21 and is provided with 9 taps, load ratio bridging switch 18 is set
9 gears are equipped with, are topmost the 1st grade 19 of tap switch, 9 grades of bottom is tap switch maximum 23.
Embodiment 4
Present embodiments provide the load ratio bridging switch phase that the polarity reversing switch of the offer of embodiment 1 is provided with embodiment 2
Connection type, including positive polarity position and negative polarity position；
As shown in figure 5, when positive polarity position, the first static contact 5 is connected by the first moving contact 3 with the second static contact 6,
First static contact 5 is connected with one end of main winding 27, and the tap of second static contact 6 and load ratio bridging switch 18 is opened
The 1st grade 19 is closed to be connected；The third static contact 7 is connected by the second moving contact 4 with the 4th static contact 8, and the described 4th is quiet
Contact 8 is connected with the tap moving contact 25 of load ratio bridging switch 18；The electric current passes sequentially through main winding 27, the first static contact
5, the first moving contact 3, the second static contact 6, the 1st grade 19 of tap switch, tap winding 21, tap moving contact 25, the 4th static contact
8, current channel when the second moving contact 4, the formation first position of third static contact 7；
As shown in fig. 6, when negative polarity position, the 4th static contact 8 is connected by the second moving contact 4 with the 5th static contact 9,
4th static contact 8 is connected with the tap moving contact 25 of load ratio bridging switch 18, the 5th static contact 9 and the first stationary contact
First 5 short circuit, the 5th static contact 9 are connected with one end of main winding 27；Second static contact 6 is quiet by the first moving contact 3 and third
Contact 7 is connected, and the second static contact 6 is connected for the 1st grade 19 with the tap switch of load ratio bridging switch 18；The electric current leads to successively
Cross main winding 27, the first static contact 5, the 5th static contact 9, the second moving contact 4, the 4th static contact 8, tap moving contact 25, tap
Electricity when the 1st grade of 19, second static contact 6 of winding 21, tap switch, the first moving contact 3, the formation second position of third static contact 7
Circulation road.
When the tap moving contact 25 of load ratio bridging switch 18 in Fig. 5, Fig. 6, which is run to, to be connected for the 1st grade 19 with tap switch,
Tap 21 no electric current of winding passes through, for 0 tap, the first static contact 5, the second static contact 6, third static contact 7, the 4th static contact
8, the 5th static contact 9 and the first moving contact 3, the second moving contact 4 are under same current potential.Dipole inversion needs to turn in this case
It changes.
Embodiment 5
Present embodiments provide the offer of embodiment 1 polarity shift device and the load ratio bridging switch that provides of embodiment 3 it is another
A kind of connection type.
As shown in fig. 7, the positive polarity position can also be：
First static contact 5 is connected by the first moving contact 3 with the second static contact 6, and the first static contact 5 is opened with loaded tap-off
The tap moving contact 25 of pass 18 is connected；Third static contact 7 is connected by the second moving contact 4 with the 4th static contact 8, and third is quiet
Contact 7 is connected with the tap switch maximum 23 of load ratio bridging switch 18, the 4th static contact 8 and the one of public winding 28
End is connected, another termination neutral point of the public winding 28；It is dynamic tactile that the electric current passes sequentially through the second static contact 6, first
First 3, first static contact 5, tap moving contact 25, tap winding 21, tap switch maximum 23, third static contact 7, second are dynamic tactile
First 4, current channel when the 4th static contact 8, public winding 28 and the formation first position of Winding tap 26；
As shown in figure 8, the negative polarity position can also be：
4th static contact 8 is connected by the second moving contact 4 with the 5th static contact 9, the 4th static contact 8 and public winding 28
One end be connected, another termination neutral point of the public winding 28, the 5th static contact 9 and 5 short circuit of the first static contact,
First static contact 5 is connected with the tap moving contact 25 of load ratio bridging switch 18；Second static contact 6 by the first moving contact 3 with
Third static contact 7 is connected, and third static contact 7 is connected with the tap switch maximum 23 of load ratio bridging switch 18；The electricity
Stream pass sequentially through the second static contact 6, the first moving contact 3, third static contact 7, tap switch maximum 23, tap winding 21, point
Moving contact 25, the first static contact 5, the 5th static contact 9, the second moving contact 4, the 4th static contact 8, public winding 28 and winding is connect to go out
First 26 form the current channel when second position.
It is connected with tap switch maximum 23 when the tap moving contact 25 of load ratio bridging switch 18 in Fig. 7, Fig. 8 is run to
When, tap 21 no electric current of winding passes through, and for 0 tap, the first static contact 5, the second static contact 6, third static contact the 7, the 4th are quiet
Contact 8, the 5th static contact 9 and the first moving contact 3, the second moving contact 4 are under same current potential.Dipole inversion is needed in this state
Lower conversion.
Embodiment 6
The present embodiment is on the basis of embodiment 1, in order to not cut off electric current when ensureing moving contact conversion, as shown in figure 9, institute
It states the first moving contact 3 and the second moving contact 4 respectively includes two bridge contacts 24, the length of the bridge contacts 2 can only connect
Adjacent two static contact；The total length of described two bridge contacts 24 can connect three adjacent static contacts.
Embodiment 7
The present embodiment provides the polarity reversing switch of three-phase, is set on the insulation turntable 1 on the basis of embodiment 1
3 moving contact groups are equipped with, 3 static contact groups are provided on the insulating supporting disk 2.
Claims (5)
1. a kind of and mating polarity reversing switch of load ratio bridging switch, which is characterized in that including insulation turntable (1), insulation branch
Support plate (2), shaft；The insulation turntable (1) is the same center of circle with insulating supporting disk (2), and the insulation turntable (1) passes through shaft
Top in insulating supporting disk (2) is set, at least 1 moving contact group, the moving contact group are set on the insulation turntable (1)
Including 2 moving contacts, 2 moving contacts are respectively the first moving contact (3) and the second moving contact (4)；The insulating supporting disk
(2) at least 1 static contact group is set on, and 1 static contact group includes 5 static contacts, and 5 static contacts are respectively first quiet
Contact (5), the second static contact (6), third static contact (7), the 4th static contact (8), the 5th static contact (9)；
Circumference of the static contact successively along insulating supporting disk (2) is spacedly distributed；The moving contact is successively along insulation turntable (1)
Circumference be spacedly distributed；
Moving contact on insulation turntable (1) can be in contact by rotation with the static contact on insulating supporting disk (2)；
Further include load ratio bridging switch (18) and winding (20), the winding (20) includes main winding (27) and tap winding
(21), multiple taps are provided on tap winding (21), the load ratio bridging switch (18) includes the 1st grade of tap switch
(19), tap switch maximum (23) and tap moving contact (25)；
The polarity reversing switch is connected with load ratio bridging switch including positive polarity position and negative polarity position；
When positive polarity position, the first static contact (5) is connected by the first moving contact (3) with the second static contact (6), and described first
Static contact (5) is connected with one end of main winding (27), and second static contact (6) and the tap of load ratio bridging switch (18) are opened
The 1st grade (19) are closed to be connected；The third static contact (7) is connected by the second moving contact (4) with the 4th static contact (8), institute
The 4th static contact (8) is stated with the tap moving contact (25) of load ratio bridging switch (18) to be connected；Electric current passes sequentially through main winding
(27), the first static contact (5), the first moving contact (3), the second static contact (6), tap winding (21), the 4th static contact (8), the
Current channel when two moving contacts (4), third static contact (7) formation first position；
When negative polarity position, the 4th static contact (8) is connected by the second moving contact (4) with the 5th static contact (9), and the described 4th
Static contact (8) is connected with the tap moving contact (25) of load ratio bridging switch (18), the 5th static contact (9) and the first stationary contact
Head (5) short circuit, the 5th static contact (9) are connected with one end of main winding (27)；Second static contact (6) passes through the first moving contact
(3) it is connected with third static contact (7), the 1st grade of (19) phase of tap switch of the second static contact (6) and load ratio bridging switch (18)
Connection；Electric current passes sequentially through main winding (27), the first static contact (5), the 5th static contact (9), the second moving contact (4), the 4th quiet
When contact (8), tap winding (21), the second static contact (6), the first moving contact (3), third static contact (7) form the second position
Current channel.
2. a kind of and mating polarity reversing switch of load ratio bridging switch, which is characterized in that including insulation turntable (1), insulation branch
Support plate (2), shaft；The insulation turntable (1) is the same center of circle with insulating supporting disk (2), and the insulation turntable (1) passes through shaft
Top in insulating supporting disk (2) is set, at least 1 moving contact group, the moving contact group are set on the insulation turntable (1)
Including 2 moving contacts, 2 moving contacts are respectively the first moving contact (3) and the second moving contact (4)；The insulating supporting disk
(2) at least 1 static contact group is set on, and 1 static contact group includes 5 static contacts, and 5 static contacts are respectively first quiet
Contact (5), the second static contact (6), third static contact (7), the 4th static contact (8), the 5th static contact (9)；
Circumference of the static contact successively along insulating supporting disk (2) is spacedly distributed；The moving contact is successively along insulation turntable (1)
Circumference be spacedly distributed；
Moving contact on insulation turntable (1) can be in contact by rotation with the static contact on insulating supporting disk (2)；
Further include load ratio bridging switch (18) and winding (20), the winding (20) includes public winding (28) and tap winding
(21), multiple taps are provided on tap winding (21), the load ratio bridging switch (18) includes the 1st grade of tap switch
(19), tap switch maximum (23) and tap moving contact (25)；
The polarity reversing switch is connected with load ratio bridging switch including positive polarity position and negative polarity position；
The positive polarity position：
First static contact (5) is connected by the first moving contact (3) with the second static contact (6), and the first static contact (5) divides with there is load
The tap moving contact (25) for connecing switch (18) is connected；Third static contact (7) passes through the second moving contact (4) and the 4th static contact
(8) it is connected, third static contact (7) is connected with the tap switch maximum (23) of load ratio bridging switch (18), and the described 4th
Static contact (8) is connected with one end of public winding (28), another termination neutral point of the public winding (28)；Electric current is successively
Pass through the second static contact (6), the first moving contact (3), the first static contact (5), tap winding (21), third static contact (7), second
Moving contact (4), the 4th static contact (8), public winding (28) and Winding tap (26) form current channel when first position；
The negative polarity position：
4th static contact (8) is connected by the second moving contact (4) with the 5th static contact (9), the 4th static contact (8) with it is public around
One end of group (28) is connected, another termination neutral point of the public winding (28), the 5th static contact (9) and first quiet
Contact (5) short circuit, the first static contact (5) are connected with the tap moving contact (25) of load ratio bridging switch (18)；Second static contact
(6) it is connected with third static contact (7) by the first moving contact (3), point of third static contact (7) and load ratio bridging switch (18)
Switch maximum (23) is connect to be connected；Electric current pass sequentially through the second static contact (6), the first moving contact (3), third static contact (7),
Tap winding (21), the first static contact (5), the 5th static contact (9), the second moving contact (4), the 4th static contact (8), public winding
(28) and Winding tap (26) formed the second position when current channel.
3. polarity reversing switch as claimed in claim 1 or 2, which is characterized in that be provided on the insulation turntable (1) electronic
Mechanism (12) and bridge joint small contact (10), are provided with position contact (11) on the insulating supporting disk (2).
4. polarity reversing switch as claimed in claim 1 or 2, which is characterized in that first moving contact (3) and second dynamic is touched
Head (4) respectively includes two bridge contacts (24), and the length of the bridge contacts (2) can only connect adjacent two static contact；It is described
The total length of two bridge contacts (24) can connect three adjacent static contacts.
5. polarity reversing switch as claimed in claim 1 or 2, which is characterized in that be provided with 3 on the insulation turntable (1)
Moving contact group is provided with 3 static contact groups on the insulating supporting disk (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710184536.7A CN106935426B (en) | 2017-03-24 | 2017-03-24 | A kind of and mating polarity reversing switch of load ratio bridging switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710184536.7A CN106935426B (en) | 2017-03-24 | 2017-03-24 | A kind of and mating polarity reversing switch of load ratio bridging switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106935426A CN106935426A (en) | 2017-07-07 |
| CN106935426B true CN106935426B (en) | 2018-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710184536.7A Active CN106935426B (en) | 2017-03-24 | 2017-03-24 | A kind of and mating polarity reversing switch of load ratio bridging switch |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109741979B (en) * | 2018-12-27 | 2024-05-03 | 西门子能源变压器(武汉)有限公司 | Switching device of transformer and transformer |
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|---|---|---|---|---|
| CN201270192Y (en) * | 2008-09-25 | 2009-07-08 | 秦靓 | Non-exciting shunting switch for positive and negative voltage regulating |
| CN202258841U (en) * | 2011-09-30 | 2012-05-30 | 上海华明电力设备集团有限公司 | Vertically-arranged integrated bipolar converter |
| CN207021165U (en) * | 2017-03-24 | 2018-02-16 | 西安森宝电气工程有限公司 | A kind of and supporting polarity reversing switch of load ratio bridging switch |
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| Publication number | Publication date |
|---|---|
| CN106935426A (en) | 2017-07-07 |
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