CN103065819A - A pre-selector actuating device for a pre-selector in a tap changer - Google Patents
A pre-selector actuating device for a pre-selector in a tap changer Download PDFInfo
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- CN103065819A CN103065819A CN2012104154156A CN201210415415A CN103065819A CN 103065819 A CN103065819 A CN 103065819A CN 2012104154156 A CN2012104154156 A CN 2012104154156A CN 201210415415 A CN201210415415 A CN 201210415415A CN 103065819 A CN103065819 A CN 103065819A
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- 238000003032 molecular docking Methods 0.000 claims description 22
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- 230000007246 mechanism Effects 0.000 abstract description 10
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 description 6
- 238000004804 winding Methods 0.000 description 6
- 244000027321 Lychnis chalcedonica Species 0.000 description 5
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- 238000010586 diagram Methods 0.000 description 3
- 230000014509 gene expression Effects 0.000 description 3
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- 238000005096 rolling process Methods 0.000 description 2
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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
- H01H9/0027—Operating mechanisms
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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
- H01H9/0038—Tap change devices making use of vacuum switches
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Abstract
The invention relates to a pre-selector actuating device for a pre-selector in a tap changer of a transformer. The device includes a drive input means (11) arranged to make an input movement stroke of a predetermined length. Further it includes a pre-selector arm (51) arranged to make a pre-selector stroke from a first contact to a second contact. There is a movement transmission mechanism connected to the drive input means (11) and to the pre-selector arm (51). According to the invention, the movement transmission mechanism is arranged to convert the input movement stroke such that the pre-selector stroke obtains a movement pattern having an initial period of relatively slow movement, an intermediate period of relatively fast movement and an end period of relatively slow movement. The invention also relates to a tap changer having such a device and to a transformer provided with such a tap changer.
Description
Technical field
The present invention relates to the preselector actuating device for the preselector of the shunting switch of transformer, this device comprises: drive input block, be configured to carry out the input motion stroke of predetermined length; The preselector arm is configured to carry out the preselector stroke from the first contact to the second contact; And movement transferring, be connected to and drive input block and preselector arm.
The invention still further relates to shunting switch and transformer.
Background technology
Shunting switch usually with being connected of transformer in use, in order to change its transfer ratio.In having the transformer of shunting switch, a winding in the transformer has the number of turn of the fixed qty that is connected to circuit.Another winding has a fixing tie point, and another tie point can be selected to obtain required voltage from a plurality of points.Selectable point can be after winding partly be positioned at each other, and this winding part is corresponding to 70% to 100% of this winding full extension.
After being connected to the load variations of transformer or owing to other influencing factor, may need to change tie point.The needs that change tap point trigger automatically in response to sensor parameter usually.Tap changes and to comprise that multiple manipulation, this manipulation comprise and open and close switch (for example, by being loaded with the spring of accumulator) and the new tie point of moving to of selector arm.These manipulations must be carried out and carry out in the certain hour relation according to a definite sequence.
Tap changes manipulation and comprises that connection is changed to adjacent connection from a tie point reveals.This is to carry out by the preselector arm, and this preselector arm foundation contacts with corresponding contact point.The illustrative examples that activates the preselector arm is disclosed in DE26202011, EP2256769 and US2009/0211890.
In the device of DE26202011, provide the auxiliary contact at high-voltage level, in order to when preselector disconnects from first make contact, reduce the generation of electric arc.In EP2256769, a pair of spring action in the preselector arm to obtain fast contact separation, in order to extinguish rapidly the electric arc of generation.
Summary of the invention
Realize actuating according to the preselector of the prior art in the common and above-mentioned example with the common constant speed of selector arm and Li Lai.This actuating movement comprise from the beginning contact point disconnect, mobile and contact another contact point, yet this actuating movement far is not best because in the different phase of motion its speed/strength is had different requirements.
The objective of the invention is to obtain a kind of preselector actuating device, it optimizes the motor pattern of preselector arm.
This purpose is because the preselector actuating device of describing in the introduction of specification is realized, this preselector actuating device comprises following specific features: movement transferring is configured to change the input motion stroke, so that the preselector stroke obtains having mid-term and the relative slowly motor pattern in the latter stage of motion of the initial stage of relatively slowly motion, relative rapid movement.
Therefore realized in the adaptation of the stages that moves to the motor pattern of difference requirement.In the beginning of motion, need to have relatively strong power in order to overcome high stiction between the contact.After contact separation, expectation has relatively high movement velocity in order to reduce condenser type breaking time.Higher speed at interim period satisfies this requirement.Lower speed during latter stage means and will enter fixed contact with low velocity that this has reduced the risk of bounce-back.When entering fixed contact, predetermined motor pattern also will help to obtain tuning period.
According to a preferred embodiment of the invention, drive the rotating element that input block comprises provides rotation input motion stroke, and the preselector arm is rotatable.
The preselector arm of rotation is the modal type of preselector.Therefore, can be widely used according to the device of this execution mode and in design, do not have other variations.Compare with other type of sports such as linearity, provide the transmission of the Move Mode that causes appointment also simpler.
According to further preferred implementation, the initial stage represents the 5%-20% of preselector stroke, and represents the 5%-20% of preselector stroke latter stage.
During initial stage and latter stage respectively corresponding in for these scopes in the scope that usually meets the demands of stages of motion.In many cases, the optimum duration in each initial stage and latter stage is about 10%, namely in the scope of 8%-12%.
According to further preferred implementation, the preselector arm the average speed of interim period at least up to the preselector arm in the early stage with each of latter stage during the twice of average speed.
Benefit from advantage of the present invention, common expectation has the high velocity contrast during the difference.Yet difference is larger, and movement transferring is had to more complicated.Be used for being enough to obtain this advantage at significance degree according to the lower restriction of the velocity contrast of present embodiment.Preferably, velocity contrast is still larger so that the speed between intergrade be in the early stage with latter stage during at least 3 times of speed.During initial stage with latter stage during speed do not need identical.On the contrary, preferably in the scope of the 30%-60% of the speed of speed during latter stage during the initial stage.
According to further preferred embodiment, movement transferring comprises the actuating arm and the pivotable pitman arm that is connected to the preselector arm around rotation, and this actuating arm has the joint unit that is configured to act on pitman arm.
By these arms, can use about the relatively simple mechanical measure of the cooperation of these arms and can realize the special exercise pattern.
According to further preferred embodiment, joint unit comprises the first docking unit and the second docking unit, this docking unit is attached to the different radial position of actuating arm, and has the cam face parts that are configured to dock with each unit matching in linking arm.
Provide two such docking unit that cooperate from the cam face parts to help obtain different speed.Preferably, the docking unit in the outside is by following radius setting, and this radius is in the 2-3 scope doubly of the radius of the setting of docking unit, inboard
According to further preferred embodiment, each joint unit is roller.
Therefore, obtain contacting with the rolling of cam face device, it reduces wear and friction loss.The contact of rolling also produces higher accuracy and reliability.
According to further preferred embodiment, the cam face component configuration contacts with the docking unit of radially inner side during in the early stage, and contacts with the docking unit of radial outside at interim period with during latter stage.
Owing to the bar distance of the docking of arriving radially inner side is relatively short, so the power of transmitting will be relatively low with relatively high and speed.Therefore, realized that in simple mode high power is with the stiction between the contact that overcomes the preselector arm and will brake.
According to further preferred embodiment, the cam face parts comprise and are configured to the second cam part device of docking the first cam portion parts of unit matching and be configured to dock with second unit matching with first.
Therefore, realized the simple and suitable adaptation of the setting of cam face parts to two a docking unit.
According to further preferred embodiment, the first cam portion parts are positioned at pivotal axis from described pitman arm than the larger radial distance of described the second cam portion parts.
The still cam face parts adaptation that is oppositely arranged of this cam portion cooperates with the simple structures of two docking unit, and causes smooth transfer.
According to further preferred embodiment, the first cam portion parts comprise that at least one has the cam section of concave arc shape, and radially extending of the second cam portion parts is the twice of radially extending of described at least one cam section at least.
These features in simple mode so that the cam face parts also are further adapted for the steady of docking unit of actuating arm cooperates.
According to further preferred embodiment, drive input unit and be configured to and rotate being used at the described preliminary election arm of any one direction rotation in any one direction.
Tap from a contact point to adjacent contacts changes may expect one of two adjacent contact points that are positioned at opposite side.This needs the preselector arm to move in either direction.By this execution mode, make it become possibility with identical transferring elements without any need for further construction package by one.
According to further preferred embodiment, the second cam portion has U-shaped, the cam face parts are about with the symmetry that rolls off the production line, the bottom perpendicular to U-shaped the second cam portion parts is intersected in the centre of this line and U-shaped the second cam portion parts, and the first cam portion parts comprise two cam section of the every side that is positioned at U-shaped the second cam portion parts, and this cam section is except being of similar shape the mirror image each other.
This execution mode is particularly suitable for allowing the preselector arm to move in either direction.The symmetry of cam face parts guarantees the same movement pattern in either direction.Thereby the second cam portion parts of U-shaped are movable on either direction, and in two cam section each only is movable in one direction.
Purpose of the present invention is further opened realization by a kind of decomposition switch, and this shunting switch comprises according to the present invention that particularly preselector actuating device purpose of the present invention according to its arbitrary preferred implementation is also by realizing a kind of comprising according to the transformer of shunting switch of the present invention.
Shunting switch of the present invention and transformer from preselector arm actuating device of the present invention with and preferred embodiment advantage benefit, described advantage is described above.
Described above of the present inventionly preferred embodiment indicate at dependent claims.Be appreciated that certainly any possible combination that can be by these above-mentioned execution modes and construct further preferred embodiment by any possible combination of the feature described in the explanation of these and example below.
By the following detailed description of example of the present invention and with reference to accompanying drawing, further explain the present invention.
Description of drawings
Fig. 1 a-Fig. 1 c has schematically shown the shunting switch that is suitable for device of the present invention;
Fig. 2 is the perspective view according to movement transferring of the present invention;
Fig. 3 is the plane graph of the part of movement transferring shown in Figure 2, and shows the mechanism in original position;
Fig. 4-Fig. 8 is the diagram corresponding to the diagram of Fig. 3, shows the mechanism of the different successive stages that transmit in motion;
Fig. 9 is the plane graph corresponding to the diagram of Fig. 3, shows in the mechanism of position endways;
Figure 10 shows the curve chart according to the motor pattern of preselector arm of the present invention.
Embodiment
Fig. 1 a-Fig. 1 c has schematically shown shunting switch.Fig. 1 a is that intention is used for a class shunting switch 100 single-phase figure according to apparatus of the present invention.Shunting switch 100 is connected to the adjusting winding of transformer and has a different set of tap 102, and in this case, the number of tap is 16, but this number can be other, for example from 5 to 35 Arbitrary Digit.The shunting switch of Fig. 1 a is the diverter switch type, and comprises diverter switch 120 and tap selector 110.
The tap selector 110 of Fig. 1 is operating as preliminary election and selected, and therefore comprises preselector arm 51 and sampler bar, and this sampler bar comprises two arms 101 and 102.Preselector arm 51 and sampler bar be all by the operation that rotatablely moves accordingly, the mobile preselector arm 51 shown in Fig. 1 b and the mobile sampler arm 101 and 102 shown in Fig. 1 c and Fig. 1 c.As shown in Figure 1a, when the V in the diverter switch 120 or H disconnected, sampler arm 101 and 102 motion occured.During sampler arm 102 moves to contact 16 from contact 14, preselector arm 51 in contact 22 to mobile between the contact 21.One of the fixed contact that sampler arm 101 and 102 is can be respectively different from 8 contact and with 51 combinations of preselector arm, whole 16 taps can be used for this thick/smart handover configurations.
Fig. 2 is the perspective view that illustrates for the actuating device of preselector arm.Its two primary clusterings are actuating arm 10 and pitman arm 20.Actuating arm 10 is connected to maltese cross mechanism (Geneva wheel) (in the drawings by axis 11 expressions) and consists of the driving input of this device.Actuating arm 10 for example is fixedly attached to maltese cross mechanism by rivet.The motion that provides for switching over device and tap selector with predetermined tap conversion sequential is provided for the part of the gearbox that maltese cross mechanism forms, gearbox.Gearbox receives the driving input from motor after tap changes instruction.The structure of gearbox can be any general type, and for purpose of the present invention, the explanation of this gearbox is considered to unnecessary.
Pitman arm 20 via bar 30 with are connected in the driving with axle (in the drawings by 50 expressions of its axis) is connected.Axle 50 is connected to rotatable preselector arm 51 with driving.
When preselector arm 51 activated, maltese cross mechanism 11 rotation was used for providing the certain angle of input motion stroke, and this angle is slightly less than 70 ° and with constant rotary speed usually.Thereby actuating arm 10 as one man rotates with maltese cross mechanism.Pitman arm 20 is rotatable around pivotal line 21.Actuating arm 10 matches with pitman arm 20 and is delivered to the latter rotatablely moving.Cooperation between these two elements is so that the motor pattern of pitman arm 20 departs from the motor pattern of actuating arm 10 in a predetermined manner.This concrete structure by those parts that contact each other of actuating arm 10 and pitman arm 20 is realized, and with reference to the accompanying drawings 3 to 9 below further detailed explanations.
Referring now to Fig. 3 to Fig. 9, with the motion transmission that illustrates in greater detail between actuating arm 10 and the pitman arm 20.
Fig. 3 shows actuating arm 10 and the pitman arm 20 of the position before the motion beginning.Actuating arm 10 has joint unit 12 and 13, comprises that the docking unit 12 of radially inner side and the docking unit 13 of radial outside consist of.Each docking unit is roller.
Connection-rod 20 is have two leg 22a, 22b forked, at two leg 22a, 22b cam face parts 23a, 23b, 24a, 24b is set. Cam face parts 23a, 23b, 24a, 24b comprise cam portion parts 23a, the 23b of radial outside and the cam portion 24a of radially inner side, 24b.
The first cam portion parts 23a, 23b comprise the first cam section 23a and the second cam section 23b of the outer ends of the leg 22a, the 22b that are positioned at separately.Two cam section 23a, 23b are except being of similar shape the mirror image each other.The shape of each cam section 23a, 23b comprises the concave arc of the centre that centers on cam section separately.This arc may be circular arc, but the vicissitudinous radius of tool alternatively.
The second cam portion 24a, 24b be U-shaped normally, and comprises two the identical 24a of branch, 24b, its in the middle of base section of U-structure toward each other.In the bottom of U-structure, the second cam portion 24a, 24b have arc 241a, 241b, its shown in figure in be circular, but can alternatively have other arcuation.From the bottom of U-structure, the second cam portion 24a, 24b have continuation 242a, 242b as straight line in every side, and these lines can parallel or a little outwards be dispersed.At the outer ends place of continuation, cam surface has corresponding protuberance 243a, 243b.
The straight line L that passes through the centre of U-structure perpendicular to the bottom separates cam part 23a, 23b, 24a, 24b symmetrically.
From the original position shown in Fig. 3, actuating arm 10 is configured to certain angle that turns clockwise, and pitman arm 20 will rotate in the counterclockwise direction accordingly.At first, actuating arm 10 moves and does not contact pitman arm 20.
After the short time period, reached the position shown in Fig. 4.Now, interior roller 12 begins to contact cam portion 23a.Connection-rod will begin rotation thus, and roller 12 rolls at cam section 23a accordingly.Because the radius of roller 12 is relatively short, so that actuating force will be the speed of strong and pitman arm will be relatively low.The initial stage that cooperation between roller 12 and the cam section 23a represents to move and transmits.When separating the preselector contact, the brute force of transmitting during this period is conducive to overcome stiction.
After actuating arm 10 was further rotated, its outer roller 13 will contact with cam ring section at its part 24a place of the bottom that is close to the U-structure.Therefore drive and to finish by the cooperation of these elements.The preselector arm has left fixed contact this moment.Because the radius of roller 13 is the radiuses much larger than roller 12, so gear ratio changes and pitman arm 20 will be with very high speed rotation.This helps to increase fast the distance between motion contact and the fixed contact, i.e. condenser type braking is fast.This has represented the mid-term that motion is transmitted.
Fig. 5 shows the position of the assembly when beginning this mid-term.Because the fair speed of pitman arm 20 during this period, interior roller 12 disconnect and the contacting of cam section 23a.In this figure, this just occurs.
Fig. 6 shows the position of assembly in the later phases in mid-term.Moving a little from the centre of the bottom of U-structure in contact between roller 13 and the 24a of cam part branch, causes the speed of pitman arm 20 correspondingly to reduce.Yet this speed is still high with respect to the speed at initial stage.
Fig. 7 shows next step.After actuating arm 10 was further rotated, the contact point between outer roller 13 and the 24a of cam part branch was further outwards advanced along continuation 242a.This causes the further reduction of the speed of pitman arm 20.
Fig. 8 shows the position at the assembly in the latter stage that motion is transmitted.During latter stage, the contact point between roller 13 and the cam part 24a namely, has the place of convex portion 243a at the latter's the very end of outside.The speed of pitman arm 20 significantly reduces during this period.The contact of preselector will arrive fixed contact with low speed accordingly, to reduce the risk of bounce-back.
In Fig. 9, motion is finished.Assembly has the position with the starting position symmetry shown in Fig. 3, and device has been ready to actuating movement in the opposite direction.This rightabout actuating movement is by finishing with above-mentioned identical mode.This roller will cooperate with cam section 23b and cam part 24b then.
Figure 10 shows the curve chart of the motor pattern of the preselector arm that activates by above-described device.Therefore what this figure was based on simulation is the expression of principle also, in practice, may have slightly with this figure and depart from.This figure is to show the speed of preselector arm degree/second, and it is as the function of the angle of preselector arm.At the initial stage from the braking of the first fixed contact, speed approximately is 25 degree/second.During first 10 degree of preselector arm motion, occur this period, and illustrated with respect to Fig. 4, and this motion is shifted from the interior roller 12 of actuating arm 12.
In the early stage, almost moment was increased to above 200 degree/second the speed of preselector arm 20.This situation occurs in driving from interior roller 12 to outer roller 13 when shifting.After arriving this maximum, speed drops to about 50 degree/second in the slow reduction of phase in mid-term.After rotating about 90 degree, the preselector arm reaches this speed.In this stage, begin latter stage and continue until set up and the contacting of fixed contact in 100 degree rotations place of preselected arm.Speed during latter stage is substantially constant at 50 degree/second.This speed is enough avoided the bounce-back when preselector arm contact fixed contact.
Claims (15)
1. the preselector actuating device of the preselector of a shunting switch that is used for transformer, described device comprises: drive input block (11), be configured to carry out the input motion stroke of predetermined length; Preselector arm (51) is configured to carry out the preselector stroke from the first contact to the second contact; And movement transferring, be connected to described driving input block (11) and described preselector arm (51); It is characterized in that: described movement transferring is configured to change described input motion stroke, so that described preselector stroke obtains having mid-term and the relative slowly motor pattern in the latter stage of motion of the initial stage of relatively slowly motion, relative rapid movement.
2. preselector actuating device according to claim 1 is characterized in that, described driving input block (11) comprises the rotating element that rotation input motion stroke is provided, and described preselector arm (51) is rotatable.
3. preselector actuating device according to claim 1 and 2 is characterized in that, the described initial stage represents the 5%-20% of described preselector stroke, and represents the 5%-20% of described preselector stroke described latter stage.
4. according to claim 1 to 3 each described preselector actuating devices, it is characterized in that, described preselector arm (51) the average speed of described interim period at least up to described preselector arm (51) during each of described initial stage and described latter stage the twice of average speed.
5. according to claim 2 to 4 each described preselector actuating devices, it is characterized in that, described movement transferring comprises the actuating arm (10) that rotates around described rotating element and is connected to the pivotable pitman arm (20) of described preselector arm (51), described actuating arm (10) has the joint unit (12,13) that is configured to act on described pitman arm (20).
6. preselector actuating device according to claim 6, it is characterized in that, described joint unit (12,13) comprise that the first docking unit (12) and second docks unit (13), described docking unit is attached to the different radial position of described actuating arm (10), and has in described linking arm (20) and be configured to and each described unit (12 that docks, 13) the cam face parts (23a that cooperates, 23b, 24a, 24b).
7. preselector actuating device according to claim 6 is characterized in that, each docking unit (12,13) is roller.
8. according to claim 6 or 7 described preselector actuating devices, it is characterized in that, described cam face parts (23a, 23b, 24a, 24b) be configured to during the described initial stage, contact with the docking unit (12) of described radially inner side, and contact with the docking unit (13) of described radial outside at described interim period with during described latter stage.
9. according to claim 6 to 7 each described preselector actuating devices, it is characterized in that, described cam face parts (23a, 23b, 24a, 24b) comprise and be configured to the second cam portion parts (24a, 24b) of docking the first cam portion parts (23a, 23b) of unit matching and be configured to dock with described second unit matching with described first.
10. preselector actuating device according to claim 9, it is characterized in that, described the first cam portion parts (23a, 23b) be positioned at pivotal axis (21) from described pitman arm (20) than the larger radial distance of described the second cam portion parts (24a, 24b).
11. according to claim 9 or 10 described preselector actuating devices, it is characterized in that, described the first cam portion parts (23a, 23b) comprise that at least one has the cam section of concave arc shape, and radially extending of described the second cam portion parts (24a, 24b) is the twice of radially extending of described at least one cam section at least.
12. according to claim 2 to 11 each described preselector actuating devices, it is characterized in that described driving input block (11) is configured to can be in any one direction rotation to be used at any one direction rotation described preliminary election arm (51).
13. preselector actuating device according to claim 12, when claim 12 is quoted claim 11, it is characterized in that, described the second cam portion parts (24a, 24b) has U-shaped, also be described cam face parts (23a, 23b, 24a, 24b) about line (L) symmetry, described line (L) and described U-shaped the second cam portion parts (24a, the bottom perpendicular to described U-shaped the second cam portion parts is intersected in centre 24b), is also that described the first cam portion parts (23a, 23b) comprise to be positioned at described U-shaped the second cam portion parts (24a, two cam section of every side 24b), described cam section is except being of similar shape the mirror image each other.
14. a shunting switch is characterized in that, described shunting switch (100) comprises according to claim 1 to 13 each described preselector actuating devices.
15. a transformer is characterized in that described transformer comprises shunting switch according to claim 14.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP11185882.5 | 2011-10-20 | ||
| EP11185882.5A EP2584576B1 (en) | 2011-10-20 | 2011-10-20 | A pre-selector actuating device for a pre-selector in a tap changer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103065819A true CN103065819A (en) | 2013-04-24 |
| CN103065819B CN103065819B (en) | 2016-11-23 |
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ID=45463204
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210415415.6A Active CN103065819B (en) | 2011-10-20 | 2012-10-22 | The preselector actuation means of the preselector in shunting switch |
| CN2012205468404U Withdrawn - After Issue CN203312051U (en) | 2011-10-20 | 2012-10-22 | Preselector actuating device used in preselector in tap switch |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205468404U Withdrawn - After Issue CN203312051U (en) | 2011-10-20 | 2012-10-22 | Preselector actuating device used in preselector in tap switch |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP2584576B1 (en) |
| CN (2) | CN103065819B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109313997A (en) * | 2016-06-17 | 2019-02-05 | Abb瑞士股份有限公司 | There is load tap changer suitable for what is linearly switched |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2584576B1 (en) * | 2011-10-20 | 2016-01-20 | ABB Technology Ltd | A pre-selector actuating device for a pre-selector in a tap changer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB697558A (en) * | 1951-07-05 | 1953-09-23 | Smit & Willem & Co Nv | Improvements in or relating to electric tap-changing switches |
| DE757517C (en) * | 1938-02-24 | 1953-12-07 | Aeg | Switching device, consisting of a step switch with constant movement and a single pole reversing switch, for transformers that can be regulated under load |
| US3155782A (en) * | 1959-05-01 | 1964-11-03 | Mc Graw Edison Co | Switch actuating mechanism for controlled speed tap changer |
| DE2451608A1 (en) * | 1973-10-30 | 1975-05-15 | Acec | DRIVE DEVICE FOR THE SWITCH SWITCH OF A TRANSFORMER TAP SWITCH |
| CN203312051U (en) * | 2011-10-20 | 2013-11-27 | Abb技术有限公司 | Preselector actuating device used in preselector in tap switch |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2620211B2 (en) | 1976-05-07 | 1980-11-27 | Transformatoren Union Ag, 7000 Stuttgart | Pre-selection for step switches of adjustable transformers |
| CN101383222B (en) | 2008-02-26 | 2010-06-23 | 上海华明电力设备制造有限公司 | Externally hanging combined loaded tap-changer |
| EP2256769A1 (en) | 2009-05-26 | 2010-12-01 | ABB Technology AG | Method and system for a pre-selector in a tap changer |
-
2011
- 2011-10-20 EP EP11185882.5A patent/EP2584576B1/en active Active
-
2012
- 2012-10-22 CN CN201210415415.6A patent/CN103065819B/en active Active
- 2012-10-22 CN CN2012205468404U patent/CN203312051U/en not_active Withdrawn - After Issue
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE757517C (en) * | 1938-02-24 | 1953-12-07 | Aeg | Switching device, consisting of a step switch with constant movement and a single pole reversing switch, for transformers that can be regulated under load |
| GB697558A (en) * | 1951-07-05 | 1953-09-23 | Smit & Willem & Co Nv | Improvements in or relating to electric tap-changing switches |
| US3155782A (en) * | 1959-05-01 | 1964-11-03 | Mc Graw Edison Co | Switch actuating mechanism for controlled speed tap changer |
| DE2451608A1 (en) * | 1973-10-30 | 1975-05-15 | Acec | DRIVE DEVICE FOR THE SWITCH SWITCH OF A TRANSFORMER TAP SWITCH |
| CN203312051U (en) * | 2011-10-20 | 2013-11-27 | Abb技术有限公司 | Preselector actuating device used in preselector in tap switch |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109313997A (en) * | 2016-06-17 | 2019-02-05 | Abb瑞士股份有限公司 | There is load tap changer suitable for what is linearly switched |
| CN109313997B (en) * | 2016-06-17 | 2019-12-31 | Abb瑞士股份有限公司 | On-load tap changer suitable for linear switching and switching method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN203312051U (en) | 2013-11-27 |
| EP2584576B1 (en) | 2016-01-20 |
| CN103065819B (en) | 2016-11-23 |
| EP2584576A1 (en) | 2013-04-24 |
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