EP3513419A1 - Laststufenschalter, regeltransformator mit laststufenschalter und verfahren zum schalten eines laststufenschalters - Google Patents
Laststufenschalter, regeltransformator mit laststufenschalter und verfahren zum schalten eines laststufenschaltersInfo
- Publication number
- EP3513419A1 EP3513419A1 EP17767774.7A EP17767774A EP3513419A1 EP 3513419 A1 EP3513419 A1 EP 3513419A1 EP 17767774 A EP17767774 A EP 17767774A EP 3513419 A1 EP3513419 A1 EP 3513419A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- selector
- selection
- contact
- contacts
- fixed contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- 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
-
- 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
-
- 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
-
- 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
- H01H9/0033—Operating mechanisms with means for indicating the selected tap or limiting the number of selectable taps
Definitions
- the invention relates to an on-load tap-changer for a control transformer, a control transformer with such an on-load tap-changer and a method for switching such an on-load tap-changer.
- an on-load tap-changer in the simplest case comprises a fine selector with N stage contacts, which are each to be connected to an associated tap of a control winding of a control transformer, and no preselector.
- this on-load tap changer also referred to as a linear on-load tap changer, has a position control range of N positions and a variable transformer with this on-load tap changer a voltage control range of N voltages.
- the on-load tap-changer in addition to its fine selector, which is also referred to as a tap selector, with a
- a turner makes it possible to connect the control winding of the control transformer either in the same direction or in opposite directions with the unregulated winding of the control transformer, which is also referred to as the main winding.
- the main winding With the help of a Grobgreglers or Mehrfachgrobcrolers there is the possibility of a part of the main winding, which is also referred to as a coarse stage, or off several coarse grades off or zuzulit, that is, at least one coarse stage with the control winding optional to connect or not.
- this on-load tap changer typically has a position control range of 2xN + 1 positions, namely, a low position control range of N positions in which the inverter is set to connect the control coil in opposite directions to the parent coil, an upper position control range of N positions in which the inverter is set such that it connects the control winding in the same direction with the main winding, and a center position corresponding to the commutation and in which the fine selector bridges the control winding.
- One Control transformer with this on-load tap-changer then typically has a voltage control range of 2xN + 1 voltages.
- the linear on-load tap-changer includes a coarse selector in addition to its fine selector with N-stage contacts
- the fine selector typically includes a commutating contact in addition to its tap-changer contacts
- this on-load tap changer typically has a position control range of 2xN + 1 positions, namely, a lower position control range of N positions in which the coarse-selector is set so as not to connect the coarse level to the control winding, an upper position control range of N positions in which the coarse-tone selector is set so that it connects the coarse stage with the control winding, and a center position corresponding to the commutation and in which the fine selector bridges the control winding.
- a control transformer with this on-load tap-changer then typically has a voltage control range of 2xN + 1 voltages.
- DE 1 178 51 1 A describes a tap changer for control transformers
- Each tap selector includes a plurality of fixed contacts connected to the regulated winding.
- the left stage selector comprises a fixed contact, which is connected to nothing, and in particular neither to the regulated nor to the unregulated winding and is referred to as an empty stage.
- This known tap changer also includes a switch that establishes a temporary connection between the unregulated winding and the output of the diverter switch.
- the tap changers are coupled to the reversing switch and the change-over switch in such a way that the connection is made within the time interval in which the tap selector runs on the idle stage and thereby switches the reversing switch from one end position to the other, and vice versa.
- the reversing switch comprises a reversing switch arm which is connected to a contact 9 on the unregulated winding.
- the switch includes a switch arm connected to contact 9.
- the initial position of the contacts is shown in FIG. 2.
- the reversing switch arm connects the fixed contact 7 at the lower end of the controlled winding with contact 9 on the unregulated winding.
- With continued terschalt run the tap selector arms from the fixed contact 1 to the fixed contact 7 or from the fixed contact 2 to the fixed contact 6, wherein the load switching done via the diverter switch.
- the left stage selector arm contacts contact 6 and the right stage selector arm contact 7 contacts the wrench arm contact 7 and the selector arm contacts a left idle contact 0.
- the diverter switch connects to the right stage selector arm and contact 7.
- the Umschalterarm goes from the left empty contact 0 to a center contact A, which is connected to the output of the diverter switch.
- the reversing switch arm of contact 7 goes to an empty contact 0.
- the left stage selector arm of contact 6 runs on an empty stage 8 of the tap selector.
- FIG. 4 reached.
- the right stage selector arm from contact 7 to contact 1 after the diverter switch has previously switched to the left Jardinngelerarm and the empty stage 8. It is the position of FIG. 5 reached.
- the reversing switch arm goes from empty contact 0 to contact 1 and the
- DE 197 43 864 C1 describes a tap changer according to the reactor switching principle for uninterrupted load switching by means of vacuum switching cells.
- fixed selector contacts are provided for each phase, which can be connected by each movable selector contacts.
- fixed preselector contacts are provided for each phase, which can be connected by a respective movable preselector contact.
- fixed by-pass contacts are provided for each phase, which can be connected by each movable by-pass contacts.
- a vacuum switching cell is provided for each phase, which can be actuated in each case by means of a force accumulator.
- a separate lateral housing part is a drive mechanism for actuating all movable contacts and all vacuum switching cells in the corresponding provided the switching sequence.
- the drive mechanism has a single Geneva wheel which is driven by a Maltese driver connected to a drive shaft and is connected to the first insulating shaft so that, at each switching, the first insulating shaft is rotatable through an angle corresponding to a switching step.
- the drive mechanism has first actuating means acting on the second insulating shaft and second actuating means acting on the third insulating shaft.
- the first actuating means consist of a roller on the Maltese wheel and a corresponding lever. At a certain position of the Geneva wheel, the roller engages in a section of the lever, and thereby the second insulating shaft is pivotable about a certain angle of rotation.
- the second selection shaft actuating the movable preselector contact is coupled to the drive shaft via the first actuating means, the Geneva wheel and the Maltese driver. Consequently, the first insulating shaft actuating the movable selector contacts and the second insulating shaft actuating the movable preselector contact are coupled in common to the drive shaft via the Geneva wheel and the Maltese driver.
- FIG. 7 shows the typical sequence of this tap-changer when switching from one tap to an adjacent tap for one phase.
- the left movable selector contact is connected in series with a left switching impedance and forms a left branch
- the right movable selector contact is connected in series with a right switching impedance to form a right branch.
- the vacuum switching cell is connected, and the corresponding connection for the load dissipation is made by the by-pass contacts.
- both movable selector contacts are connected to the same, left tap, ie the same, left fixed selector contact.
- a formulation of the type "A is attached to B” corresponds to a formulation of the type "A is connected to B"
- a formulation of the type "A is connected to B” has the meanings "A is directly conducting with B electrically conductive connected "and” A is indirectly, so via C, electrically connected to B “, and has a formulation of the type” A is connected to B “meaning” A is directly electrically connected to B ".
- the invention proposes a method for switching an on-load tap-changer, wherein the on-load tap-changer comprises
- a plurality of fixed selector contacts comprising a commutating contact, which may or should be connected to an associated tap of a main winding of a variable transformer, and a plurality of tap contacts, each of which may be connected to an associated tap of a control winding of the variable transformer;
- a first selector arm which can selectively contact each of the selector contacts
- a second selector arm which can selectively contact each of the selector contacts
- a preselector which can be switched from a first position to a second position and vice versa and which can or should be connected to the control winding and the main winding and which comprises
- a third selection fixed contact connected in the first position to the first selection fixed contact and in the second position to the second selection fixed contact;
- a diverter switch which can be switched from a first position to a second position and vice versa and includes
- a first port connected to the first selector arm
- a second port connected to the second selector arm
- a drain connected to the first terminal in the first position and to the second terminal in the second position;
- the selector arms are or are set such that one of the selector arms contacts the commutation contact and the other selector arm does not contact any of the tap contacts,
- the selector arms are thus adjusted during these switching of the diverter switch and the preselector such that one of the selector arms contacts the commutation contact and the other selector arm does not contact any of the tap contacts.
- one of the selector arms may contact the commutation contact and the other selector arm may be in an intermediate position between the commutation contact and one of the tap contacts, but both selector arms may also contact the commutation contact.
- the selector arms may, for example, change their respective positions as long as the said condition is met according to which one contacts the commutation contact and the other does not contact any of the tap contacts.
- the preselector should be switched, for example, when the on-load tap changer receives a switching command from a control device coupled to it to execute a tap changer from the currently set start position to a target position, and if a) the starting position to one of the position control ranges, for example to the lower or upper position control range heard and the target position belongs to another of the position control ranges, for example, to the upper or lower position control range, or if b) the starting position the Middle position is and the objective belongs to one of the position control ranges, or if c) the target position is the middle position and the starting position belongs to one of the position control ranges.
- This method allows the preselector and diverter switch to be operated at the same time at least for a certain period of time. As a result, the additional time and control effort for the operation of the preselector is saved, which significantly simplifies and speeds up the entire, required for a tap changer switching operation of the on-load tap-changer. However, this method also makes it possible that the switching of the diverter switch ends before the switchover of the preselector starts, and thus the diverter switch and preselector are operated sequentially.
- the on-load tap changer can be designed as desired in any desired manner, for example according to the second aspect.
- the selection includes
- a pre-selector moving contact having a first position in which it contacts the first preset fixed contact, a second position in which it contacts the second preselector fixed contact, and an intermediate position in which it does not contact any of the preselector fixed contacts;
- step a) the preselection moving contact from the second position to the intermediate position move is moved
- step a ' the preselection moving contact moves from the first position to the intermediate position
- the Vor The Vor ThelerbewegtMap may be formed as needed in any manner, such as a contact fingers in a housing.
- Step a) can be started, for example, before or simultaneously with or after the start of step b).
- Step c) can be ended, for example, simultaneously with or after the start of step b) and / or before or simultaneously with or after the end of step b).
- Step a ') can be started, for example, before or simultaneously with or after step b').
- Step c ') can be terminated, for example, simultaneously with or after step b') and / or before or simultaneously with or after the end of step b ').
- the diverter switch comprises
- a movable change-over contact which has a first position in which the first
- step b) the changeover contact is switched from the first position to the bridging position and then from the bridging position to the second position;
- the changeover contact is switched from the second position to the bridging position and then from the bridging position to the first position.
- the changeover contact may be formed as desired in any manner, such as the movable center contact of a rotary switch in which the movable center contact is rotated, or as the movable center contact of a pull switch in which the movable center contact is pulled or pressed.
- the diverter switch comprises
- a resistor connected between the second terminal and the second selector arm
- step b) and step b ') is closed.
- the switch can be configured as desired in any manner, for example as a semiconductor switch or as a vacuum interrupter.
- the diverter switch may be configured as desired in any manner and may include, for example, no or at least one additional switch and / or no or at least one additional resistor.
- the invention proposes, according to a second aspect, an on-load tap-changer for a regulating transformer, comprising
- Main winding of the control transformer can or should be connected, and a plurality of stages contacts, each of which can be connected to an associated tap of a control winding of the control transformer or should include;
- a first selector arm which can selectively contact each of the selector contacts
- a second selector arm which can selectively contact each of the selector contacts
- a preselector which can be switched from a first position to a second position and vice versa and which can or should be connected to the control winding and the main winding and which comprises
- a third selection fixed contact which in the first position with the first fixed contact and in the second position connected to the second selection fixed contact;
- a diverter switch which can be switched from a first position to a second position and vice versa and includes
- a first port connected to the first selector arm
- a second port connected to the second selector arm
- a drain connected to the first terminal in the first position and to the second terminal in the second position;
- the selection, the fine selector and the diverter switch are each separately coupled to the drive shaft.
- the separate coupling allows a simple and robust design and a flexible and easy adaptation of the on-load tap-changer and a significantly simplified and accelerated changeover of the on-load tap-changer and thus a faultless function.
- the selection includes
- a preselector moving contact having a first position in which it contacts the first selection fixed contact, a second position in which it contacts the second selection fixed contact, and an intermediate position in which it does not contact any of the preselector fixed contacts.
- the diverter switch comprises
- a movable switching contact which can take a first position in which it contacts the first terminal, a second position in which it contacts the second terminal, and a bridging position in which it contacts both terminals.
- the diverter switch comprises
- the selection includes • a selection base plate with a first side and a second, opposite side;
- a selection-Geneva wheel on the first side rotatably mounted on the selection base plate and carrying a second selection driver;
- the drive shaft extends through the selection base plate and is rotatably supported thereon;
- the selection fixed contacts and the selector move away contact are arranged on the second side of the selection base plate;
- the first selection driver interacts with the selection-Geneva wheel so that upon a complete rotation of the selection driver the selection wheel rotates only a fraction of a complete rotation, this fraction being a switching operation of the fine selector from one selector solid contact to an adjacent one Fixed selector contact corresponds;
- the second selection-driver cooperates with the rocker such that when one of the selector arms contacted one of the tap contacts, the second Vortexler- driver with a rotation of the selection-Geneva wheel does not engage around the fraction in the mouth and, if one of the selector arms the Contacting commutation and contacted the other selector arm none of the tap contacts, the second selection driver engages the jaw so that the VorctionlerbewegtCount is switched.
- the selection fixed contacts are guided from the first page through the selection base plate to the second side.
- the preselection serves to connect the control winding in different ways to the main winding, and may be formed as desired in any manner, such as a turner or coarse picker or multiple co-selector.
- the selection is designed as a turner
- the second selection fixed contact can be connected to a second end of the control winding or should;
- the third selection fixed contact can or should be connected to the trunk winding.
- the third selection fixed contact with the commutation contact is constantly connected.
- the selection is designed as a coarse voter
- the first selection fixed contact can or should be connected to a first end of the trunk winding
- the second selection fixed contact can or should be connected to a tap of the trunk winding
- the third selection fixed contact can be connected to one end of the control winding or should.
- the first selection fixed contact with the commutation contact is constantly connected.
- the on-load tap-changer comprises
- a first coupling means coupling the preselection to the drive shaft
- the coupling devices are constructed separately from each other and / or have no common components.
- the on-load tap-changer comprises
- the third coupling device and the first and / or second coupling device are constructed separately from each other and / or have no common components.
- the first coupling device may be configured as desired in any manner and may include, for example, the selection driver, the selection wheel, and the rocker.
- the invention proposes a regulating transformer, comprising transmitting
- the commutation contact is connected to the main winding and the tap contacts are each connected to an associated tap of the control winding;
- the selection is associated with the control winding and the trunk winding.
- one of the proposed methods can be carried out with each of the proposed on-load tap-changers and with each of the proposed control transformers.
- Each of the proposed tap-changers and each of the proposed variable transformers may be exemplified and / or serve and / or adapted to carry out and / or perform one of the proposed methods.
- FIG. 1 is a schematic side view of a preferred embodiment of a
- FIG. 2 is a first page of a preferred embodiment of a fine selector for the on-load tap-changer of FIG. 1 ;
- FIG. 3 shows the first side of the fine selector of FIG. 2 with the Maltese wheel removed;
- FIG. 4 a second side of the fine selector;
- FIG. 5 is a first page of a preferred embodiment of a preselector for the
- FIG. 6 a second page of the preselector
- FIG. 7 shows a first side of a preferred embodiment of a diverter switch for the on-load tap-changer of FIG. 1 ;
- FIG. 8 a second side of the diverter switch
- FIG. 9 is a circuit diagram for a first embodiment of a variable transformer that incorporates the on-load tap changer of FIG. 1, wherein the on-load tap-changer is in an initial position;
- FIG. 9a-h the individual switching phases of a first embodiment of a switching sequence of a tap-change circuit of the on-load tap-changer in the control transformer of FIG. 9;
- FIG. 10 is a timing diagram of the switching sequence of FIG. 9 to FIG. 9h;
- FIG. 1 is a timing diagram of a second embodiment of the shifting sequence
- FIG. 12 is a timing diagram of a third embodiment of the shifting sequence
- FIG. 13 is a circuit diagram for a second embodiment of a variable transformer.
- a preferred embodiment of an on-load tap-changer 11 is shown schematically.
- the on-load tap-changer 1 1 is constructed according to the principle of resistance and has three fine-tuning 20, three preselector 40 and three diverter switch 60 on.
- Each fine selector 20, each preselector 40 and each diverter switch 60 is associated with a particular phase of a variable transformer 10 (FIG.
- a single-phase variant of the on-load tap changer 1 1 would thus comprise only one fine selector 20, one preselector 40 and one diverter switch 60.
- Each fine selector 20 is mounted on a fine selector base plate 21, each selection 40 on a selection base 41, and each diverter switch 60 is mounted on a diverter switch base 61.
- the single ones Base plates 21, 41, 61 are preferably made of an insulating material such as plastic or fiber reinforced plastic (eg, a mixture of polyamide or polyphthalamide with glass fibers). They are individually pushed onto at least one rod 16 and are held over this. The attachment of the plates 21, 41, 61 can also be done in other ways, for example via spacers, sprayed webs or other plates.
- a common drive shaft 17 drives all the selectors 20, 40 preselector and diverter switch 60 at. In this embodiment, the drive shaft 17 extends through the plates 21, 41, 61 therethrough.
- the drive shaft 17 is preferably driven via a bevel gear 18 by a motor 19, but can also be driven directly, so without intermediate gear, from the motor 19.
- FIG. 2 and FIG. 4 one of the fine selectors 20 is shown, which is formed according to a preferred embodiment.
- the fine selector base plate 21 has a first side 21 1 and a second, opposite side 212.
- FIG. 2 and 3 show the first side 21 1, on which nine selector fixed contacts 200... 208 (FIG. 3) are arranged behind a first selector-Geneva dial 24. Five of these nine selector fixed contacts 200 ... 208 are connected to five lines 22, via which they can be connected to associated taps of a control winding 1 1 of the control transformer 10.
- the selector contacts 200 ... 208 extend from the first side 21 1 through the fine selector base plate 21 to the second side 212.
- the first selector-Geneva wheel 24 carries on its rear side facing the fine-dial base plate 21 a first, radially movably mounted selector arm 26 and is rotatably mounted on a first bearing axis 25 about an axis 23.
- the bearing axis 25 is formed as a separate part mechanically connected to the fine-tuning base plate 21. However, the bearing axis 25 can be sprayed with in the manufacture of the fine-selection base plate 21 and be formed with this as a unit.
- a first selector driver 27 is arranged, which is driven via the drive shaft 17. In this case, the first selector driver 27 to a first selector driver 28 which engages in the first selector-Geneva wheel 24 and this rotates. Upon actuation of the fine selector 20, the first selector driver 27 is rotated 360 °.
- the first selector-Geneva wheel 24 In cooperation with the first selector-Geneva wheel 24 in this complete rotation of the first selector driver 27, the first selector-Geneva wheel 24 is only piecemeal, that is rotated by the fraction of a complete rotation. Through the combination of the first selector driver 27 and the first selector-Geneva wheel 24, the continuous rotational movement of the first selector driver 27 is transformed into a stepwise relationship. approximately piecewise rotation of the first selector-Geneva wheel 24 converted.
- the combination of the Geneva wheel and the driver also makes it possible, in the idle state, ie before or after the operation of the fine selector 20, to block both parts against each other.
- FIG. 4 shows the second side 212 of the fine-tuning base plate 21.
- the second selector-Geneva wheel 34 is also rotatably mounted about the axis 23 on a second bearing axis 35.
- a second selector driver 37 is disposed adjacent to the second selector-Geneva wheel 34 and is operated by the same drive shaft 17 as the first selector driver 27.
- the second selector driver 37 has a second selector driver 38, which engages in the second selector-Geneva wheel 34 and this rotates.
- the second selector-Geneva wheel 34, and thus the second selector arm 36 are step-driven by the second selector driver 37 in a manner analogous to the first selector-Geneva wheel 34 and the second selector arm 36 by the drive shaft 17.
- FIG. 5 and FIG. 6 illustrates one of the preselector 40 formed in accordance with a preferred embodiment.
- the preselector base 41 has a first side 41 1 and a second, opposite side 412.
- FIG. 5 show the first side 41 1.
- a selection-Geneva wheel 44 is mounted, which is rotatably mounted about a first axis 43 on a first bearing axis 45.
- the first bearing axis 45 is formed as a separate, mechanically connected to the selection base 41 part. However, the first bearing shaft 45 can be sprayed with in the preparation of Vor Schlurgilervigplatte 41 and formed with this as a unit.
- a selection driver 42 is arranged, which sits non-rotatably on the drive shaft 17.
- the first selection driver 42 has a first selection cam 421 which can engage the selection wheel 41 and rotate it stepwise.
- a rocker 46 is mounted on the first side 41 1, which is mounted pivotably about a second axis 47 on a second bearing axis 48.
- the second bearing shaft 48 is also formed as a separate, mechanically connected to the selection base 41 part.
- the second bearing axis 48 may in the manufacture of the Selection base 41 are sprayed with and be formed with this as a unit.
- the rocker 46 has a mouth 461 which cooperates with a second selection cam 441 which projects from the selection cam 41 pointing towards the rear of the selection wheel.
- FIG. FIG. 6 shows the second side 412 of the preselector baseplate 41.
- a first, second, and third selection fixed contact 401, 402, 403 of the preselector 40 are disposed thereon.
- the first and second selection fixed contacts 401, 402 are led from the first side 41 1 through the preselector base plate 41 to the second side 412 and connected to leads 49 through which they can be connected to the ends of the control winding 13.
- the third selection fixed contact 403 can be connected to a main winding 12 of the regulating transformer 10 via a line 49 which is guided from the first side 41 1 through the preselector base plate 41 to the second side 412.
- the selection fixed contacts 401 ... 403 are preferably made of copper and are additionally silvered.
- the second side 412 includes a
- Preselected moving contact 404 which is resiliently mounted in a contact housing 50.
- the contact housing 50 is fixedly connected to the bearing shaft 48 so that the pivotal movement of the rocker 46 is transmitted to the VortexlerbewegtCount 404.
- the preselector driver 42 is rotated by the drive shaft 17 through 360 °.
- the first selection cam 421 intervenes in the selection wheel 41 at each complete revolution of the selector driver 42 and moves it by a fraction of a complete rotation. This fraction corresponds to a switching operation of the fine selector 20 from a fixed selector contact 200 ... 208 to an adjacent selector fixed contact 200 ... 208.
- the rocker 46 remains untouched, since the second selection driver 441 has not yet reached the position in which it engages in the mouth 461. Only when one of the two selector arms 26, 36 contacts the commutation contact 200 and the other of the two selector arms 26, 36 does not contact any of the tap contacts 201 ...
- the second selection driver 441 engages in the mouth 461 and pivots the rocker 46.
- the rocker 46 and the second bearing shaft 48 is pivoted and thus the contact housing 50 with the VorschlerbewegtCount 404.
- VortexlerbewegtCount 404 depending on the switching direction of the first to the second position or switched from the second to the first position.
- This selection 40 can be used either as a reverser or Grobrichler, depending on how it is connected to control winding 13 and main winding 12.
- the diverter switch base plate 61 is preferably made of an insulating material, such as e.g. Plastic or fiber reinforced plastic (e.g., a mixture of polyamide or polyphthalamide with glass fibers) and has a first side 61 1 and a second, opposite side 612.
- FIG. 7 shows the first page 61 1.
- a switch 62 which is formed in this embodiment as a vacuum interrupter, by means of holders 63 attached to the diverter switch base plate 61.
- the vacuum interrupter 62 comprises a fixed contact 621 and a
- a cam plate 64 rotatably mounted on the drive shaft 17. Between the cam plate 64 and the
- a rocker arm 65 is rotatably mounted such that upon rotation of the cam plate 64, one end 651 of the rocker arm 65 moves off a contour 641 of the cam disk 64 and thereby actuates the vacuum interrupter 62, i. about theirs
- Moving contact 622 closes or opens.
- the moving contact 622 is guided during actuation in a holder.
- FIG. 8 shows the second side 612 of diverter switch base 61.
- a resistor 66 is arranged on the second side 612.
- a first gear 67 which corresponds to the cam disk 64 on the first side 61 1, rotatably mounted on the second side 612.
- Drive shaft 17, in the example shown here passes through cam plate 64, diverter switch base plate 61 and first gear 67, and drives cam plate 64 and first gear 67.
- a switching element 68 which is driven by a combination of a second gear 69, which meshes with the first gear 67, and a connecting rod 70, mounted on the second side 612.
- the switching element 68 is exemplified as a bridging switch, but may for example be designed as a rotary switch.
- the arrangement of the individual parts, in particular the vacuum interrupter 62, the resistor 66 and the switching element 68, depending on the requirement on the first and / or the second side 61 1, 612 of the diverter switch base plate 61 are distributed.
- the Actuation of the vacuum interrupter 62 and the switching element 68 can be done as required in any way, for example via gears and / or Geneva wheels and / or connecting rods.
- the on-load tap-changer 1 1 comprises a first coupling device coupling the preselector 40 to the drive shaft 17, a second coupling device coupling the fine selector 20 to the drive shaft 17, and a third coupling device connecting the diverter switch 60 to the drive shaft 17 couples.
- the first docking device comprises the selector driver 42, the selector Geneva wheel 44 and the rocker 46.
- the second docking device comprises the selector drivers 27, 37 and the selector Geneva wheels 24, 34.
- the third docking device comprises the cam plate 64, the rocker arm 65, the gears 67, 69 and the connecting rod 70.
- FIG. 9 shows a circuit diagram for a phase of a first embodiment of a three-phase regulating transformer 10, which comprises the on-load tap-changer 1 1 of FIG. 1 and a main winding 12 and a control winding 13 with multiple taps includes.
- the commutation contact 200 is connected to one end of the main winding 12, and the step contacts 201 ... 208 are each connected to an associated tap of the control winding 13.
- the preselector 40 is used as a reverser and serves to connect the control winding 13 either in the same direction or in opposite directions to the main winding 12.
- the first selection fixed contact 401 is connected to a first end of the control winding 13
- the second selection fixed contact 402 is connected to a second end of the control winding 13
- the third selection fixed contact 403 is connected to one end of the main winding 12 and continuously to the commutation contact 200.
- the diverter switch 60 includes, in addition to the switch 62 and the resistor 66, a first terminal 601, a second terminal 602, and a movable change-over contact 604 connected to a drain 603 of the on-load tap changer 11 and the variable transformer 10.
- the changeover 604 is designed as a bridging switch and contacted in a first position, the first terminal 601, in a second position, the second terminal 602 and in a
- the first port 601 is connected via a main branch 14 to the first selector arm 26.
- the second terminal 602 is connected via an auxiliary branch 15 to the second selector arm 36, with the resistor 66 connected in series therebetween. Between the terminals 601 and 602, the switch 62 is connected.
- FIG. 9 and FIG. 9a to h a first embodiment of a switching sequence of a tap-change circuit of the on-load tap-changer 11 is shown.
- the on-load tap-changer 1 1 switches, for example, from the commutation contact 200 to the eighth tap contact 208, which is also referred to as switching from a position 9 to a position 8 of the on-load tap-changer 11.
- the selector arms 26, 36 contact the commutation contact 200 and the preselector 40 is in the first position.
- the selector arms 26, 36 contact the eighth stage contact 208 and the preselector 40 is in the second position. Consequently, in this step circuit, the preselector 40 must be operated.
- the starting position for this switching sequence is shown in FIG. 9 shown. In this starting position, the on-load tap-changer 1 1 is at position 9, the diverter switch 60 is in the first position and the switch 62 is closed.
- a step a the pre-selection moving contact 404 is disconnected from the second preset fixed contact 402 and thus brought into the intermediate position.
- the on-load tap-changer 1 1 is now in the position of FIG. 9a.
- a step b the diverter switch 60 is switched.
- the changeover 604 is first in the bridging position shown in FIG. 9b1 and then further into the second position shown in FIG. 9b2 moves.
- the switch 62 is opened.
- a first switching of the diverter switch 60 is completed during which no circulating current has flowed.
- the VortexlerbewegtCount 404 is still in the intermediate position on the way to the first selection fixed contact 401st
- the on-load tap-changer 1 1 is now in the position of FIG. 9b3.
- a step c the pre-selection moving contact 404 is contacted with the first selection fixed contact 401 and thus brought into the second position. This completes the switchover of the preselector 40.
- the on-load tap-changer 1 1 is now in the position of FIG. 9c.
- a step d the first selector arm 26 is disconnected from the commutation contact 200 and contacted with the eighth stage contact 208.
- the on-load tap-changer 1 1 is now in the position of FIG. 9d.
- a step e the switch 62 is closed, so that the auxiliary branch 15 is connected via the switch 62 to the main branch 14 and a circulating current Ic flows through the on-load tap-changer 1 1 and the control winding 13.
- the on-load tap-changer 1 1 is now in the position of FIG. 9e.
- a step f the changeover contact 604 is first returned to the bridging position according to FIG. 9f1 and then further into the first position shown in FIG. 9f2 moves. Then, the switch 62 is opened again, whereby auxiliary branch 15 and main branch 14 are separated and the circulating current Ic dried up. This completes a second, "normal" switching of the diverter switch 60, which is a load switching.
- the on-load tap-changer 1 1 is now in the position of FIG. 9f3.
- the second selector arm 36 is disconnected from the commutation contact 200 and contacted with the eighth stage contact 208.
- the on-load tap-changer 1 1 is now in the position of FIG. 9g.
- a step h the switch 62 is closed. This completes the load switching to the step contact 201 and also the step switching from position 9 to position 8.
- the on-load tap-changer 1 1 is now in the end position of FIG. 9h.
- step circuit is now to be carried out in the opposite direction, that is to say from position 8 to position 9, then the operation shown in FIG. FIG. 9 to FIG. 9h described switching sequence in exactly the reverse order.
- FIG. 10 shows a timing diagram of the switching sequence of FIG. 9 to FIG. 9h.
- the arranged from top to bottom lines represent the positions of the switch 62, the changeover 604, the first selector arm 26, the second Schwarzrarmes 36 and the VorschlerbewegtWalletes 404 over time a complete stage circuit from position 8 in position 9 or in the reverse direction.
- the vertical, dashed line marks the time at which the switching of the preselector 40 must be ended latest or may be started at the earliest, namely, when one of the selector arms 26, 36 contacted the commutation 200 and the otherêtrarm not the tap contact 208 more or not contacted yet.
- the timing diagram to read from right to left.
- FIG. 1 1 is a timing diagram of a second embodiment of the switching sequence shown. This embodiment is similar to the first embodiment in FIG. 1 1, so that in the following especially the differences are explained in more detail.
- VortexlerbewegtCount 404 moved to the intermediate position and then moves according to sub-step b1, the changeover 604 from the first position to the bridge position. Then, however, unlike the first embodiment, according to step c of
- the switching contact 604 When the selector moving contact 404 moves from the intermediate position to the first position, the switching contact 604 simultaneously moves from the bridge position to the second position according to sub-step b2, and the switch 62 is then opened in accordance with sub-step b3.
- the switching of the preselector 40 is completed before the changeover of the diverter switch 60.
- the switch 62 In the opposite direction, as opposed to the first embodiment of the switching sequence, the switch 62 before
- Preselection moving contact 404 is actuated.
- FIG. 12 is a timing chart of a third embodiment of the shifting sequence.
- This embodiment is similar to the first embodiment in FIG. 1 1, so that in the following especially the differences are explained in more detail.
- the switching of the diverter switch 60 and the preselector 40 are started simultaneously and terminated at the same time when viewing the switching sequence in both directions.
- FIG. 13 shows a circuit diagram for one phase of a second embodiment of the control transformer 10.
- the main winding 12 includes a tap 121, which forms the upper end of a coarse step of the main winding 12.
- the lower end of the trunk ment 12 forms the lower end of the coarse stage.
- the preselector 40 is used as a coarse selector and serves to selectively connect the coarse stage with the control winding 13 or not.
- the first selection fixed contact 401 is connected to the lower end of the main winding 12 and continuously connected to the commutating contact 200.
- the second selection fixed contact 402 is connected to the tap 121 of the main winding 12.
- the third selection fixed contact 403 is connected to one end of the control winding 13.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
- Protection Of Transformers (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Keying Circuit Devices (AREA)
- Control Of Electrical Variables (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HRP20241062TT HRP20241062T1 (hr) | 2016-09-16 | 2017-09-07 | Izmjenjivač pod opterećenjem, regulacijski transformator s izmjenjivačem pod opterećenjem i način spajanja uređaja pod opterećenjem |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016117526.9A DE102016117526B3 (de) | 2016-09-16 | 2016-09-16 | Lasststufenschalter, Regeltransformator mit Laststufenschalter und Verfahren zum Schalten eines Laststufenschalters |
| PCT/EP2017/072402 WO2018050522A1 (de) | 2016-09-16 | 2017-09-07 | Laststufenschalter, regeltransformator mit laststufenschalter und verfahren zum schalten eines laststufenschalters |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP3513419A1 true EP3513419A1 (de) | 2019-07-24 |
| EP3513419C0 EP3513419C0 (de) | 2024-05-08 |
| EP3513419B1 EP3513419B1 (de) | 2024-05-08 |
Family
ID=59859063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17767774.7A Active EP3513419B1 (de) | 2016-09-16 | 2017-09-07 | Laststufenschalter, regeltransformator mit laststufenschalter und verfahren zum schalten eines laststufenschalters |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US11177086B2 (de) |
| EP (1) | EP3513419B1 (de) |
| JP (1) | JP7136769B2 (de) |
| KR (1) | KR102439449B1 (de) |
| CN (1) | CN108475591B (de) |
| AU (1) | AU2017326303B2 (de) |
| DE (1) | DE102016117526B3 (de) |
| ES (1) | ES2987491T3 (de) |
| HR (1) | HRP20241062T1 (de) |
| MX (1) | MX2019003024A (de) |
| PL (1) | PL3513419T3 (de) |
| WO (1) | WO2018050522A1 (de) |
| ZA (1) | ZA201901174B (de) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018105097A1 (de) * | 2018-03-06 | 2019-09-12 | Maschinenfabrik Reinhausen Gmbh | Laststufenschalter und ortsnetztransformator mit einem laststufenschalter |
| DE102018130869A1 (de) * | 2018-12-04 | 2020-06-04 | Maschinenfabrik Reinhausen Gmbh | Lastumschalter für Laststufenschalter und Laststufenschalter |
| EP3758034A1 (de) * | 2019-06-25 | 2020-12-30 | ABB Power Grids Switzerland AG | Mehrphasenwähler-vorwahlvorrichtung für laststufenschalter |
| DE102019130457B3 (de) * | 2019-11-12 | 2021-02-04 | Maschinenfabrik Reinhausen Gmbh | Laststufenschalter |
| DE102019130462B4 (de) * | 2019-11-12 | 2022-03-24 | Maschinenfabrik Reinhausen Gmbh | Wähler für Laststufenschalter sowie Laststufenschalter damit |
| DE102019131169B3 (de) * | 2019-11-19 | 2021-02-18 | Maschinenfabrik Reinhausen Gmbh | Laststufenschalter und Stufentransformator mit Laststufenschalter |
| DE102020122450A1 (de) | 2020-08-27 | 2022-03-03 | Maschinenfabrik Reinhausen Gmbh | Schaltmodul und Laststufenschalter mit Schaltmodul |
| DE102020122453A1 (de) * | 2020-08-27 | 2022-03-03 | Maschinenfabrik Reinhausen Gmbh | Laststufenschaltermodul |
| EP4123677B1 (de) * | 2021-07-23 | 2025-07-09 | Hitachi Energy Ltd | Laststufenschalter mit positionierungsvorrichtung und verfahren zur montage eines laststufenschalters |
| EP4404228B1 (de) * | 2023-01-23 | 2025-08-27 | Hitachi Energy Ltd | Laststufenschalter und verfahren zum betreiben eines laststufenschalters |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL263452A (de) * | 1944-04-02 | |||
| NL126871C (de) | 1962-08-15 | |||
| JPS4219134Y1 (de) | 1964-09-30 | 1967-11-06 | ||
| JPS5015045B1 (de) * | 1969-08-29 | 1975-06-02 | ||
| JPS5249126B1 (de) * | 1971-01-28 | 1977-12-15 | ||
| JPS6038854B2 (ja) * | 1977-06-01 | 1985-09-03 | 株式会社東芝 | 負荷時タツプ切換装置 |
| DE2936534C2 (de) * | 1979-09-10 | 1983-11-17 | Transformatoren Union Ag, 7000 Stuttgart | Kontaktanordnung bei einem Stufenwähler für einen Transformator |
| JPS5788710A (en) * | 1980-11-21 | 1982-06-02 | Toshiba Corp | On-load tap changer |
| JPS6194323U (de) * | 1984-11-27 | 1986-06-18 | ||
| DE19743864C1 (de) | 1997-10-04 | 1999-04-15 | Reinhausen Maschf Scheubeck | Stufenschalter |
| JP4282148B2 (ja) * | 1999-05-27 | 2009-06-17 | 株式会社東芝 | 負荷時タップ切換器用タップ選択器 |
| JP2004281638A (ja) * | 2003-03-14 | 2004-10-07 | Nihon Setsuden:Kk | タップ選択器 |
| CN103548106B (zh) * | 2011-03-25 | 2017-02-08 | Abb技术有限公司 | 具有改进的真空断续器致动组件的分接头变换器 |
| JP6057679B2 (ja) * | 2012-11-19 | 2017-01-11 | 三菱電機株式会社 | 負荷時タップ切換器 |
| JP5389290B2 (ja) * | 2013-05-07 | 2014-01-15 | 東光電気株式会社 | タップ切替装置および負荷時タップ切替柱上変圧器 |
| DE102013110653A1 (de) * | 2013-09-26 | 2015-03-26 | Maschinenfabrik Reinhausen Gmbh | Stufenschalter für einen Transformator |
| DE102013110656A1 (de) * | 2013-09-26 | 2015-03-26 | Maschinenfabrik Reinhausen Gmbh | Stufenschalter |
| DE102014112764A1 (de) * | 2014-09-04 | 2016-03-10 | Maschinenfabrik Reinhausen Gmbh | Schaltanordnung für einen Regeltransformator, insbesondere Polungsschalter |
| CN204834392U (zh) * | 2015-07-28 | 2015-12-02 | 重庆洋迪机电有限公司 | 一种有载分接开关 |
| DE102016104500B3 (de) * | 2016-03-11 | 2017-05-04 | Maschinenfabrik Reinhausen Gmbh | Laststufenschalter |
-
2016
- 2016-09-16 DE DE102016117526.9A patent/DE102016117526B3/de active Active
-
2017
- 2017-09-07 ES ES17767774T patent/ES2987491T3/es active Active
- 2017-09-07 WO PCT/EP2017/072402 patent/WO2018050522A1/de not_active Ceased
- 2017-09-07 KR KR1020197010787A patent/KR102439449B1/ko active Active
- 2017-09-07 MX MX2019003024A patent/MX2019003024A/es unknown
- 2017-09-07 JP JP2019514817A patent/JP7136769B2/ja active Active
- 2017-09-07 US US16/333,598 patent/US11177086B2/en active Active
- 2017-09-07 PL PL17767774.7T patent/PL3513419T3/pl unknown
- 2017-09-07 HR HRP20241062TT patent/HRP20241062T1/hr unknown
- 2017-09-07 EP EP17767774.7A patent/EP3513419B1/de active Active
- 2017-09-07 CN CN201780007088.1A patent/CN108475591B/zh active Active
- 2017-09-07 AU AU2017326303A patent/AU2017326303B2/en active Active
-
2019
- 2019-02-25 ZA ZA2019/01174A patent/ZA201901174B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP3513419C0 (de) | 2024-05-08 |
| KR102439449B1 (ko) | 2022-09-01 |
| BR112019004732A2 (pt) | 2019-05-28 |
| JP7136769B2 (ja) | 2022-09-13 |
| JP2019533305A (ja) | 2019-11-14 |
| AU2017326303A1 (en) | 2019-05-02 |
| WO2018050522A1 (de) | 2018-03-22 |
| ZA201901174B (en) | 2021-06-30 |
| CN108475591B (zh) | 2021-12-14 |
| AU2017326303B2 (en) | 2022-08-04 |
| ES2987491T3 (es) | 2024-11-15 |
| DE102016117526B3 (de) | 2018-02-15 |
| KR20190045368A (ko) | 2019-05-02 |
| EP3513419B1 (de) | 2024-05-08 |
| US11177086B2 (en) | 2021-11-16 |
| CN108475591A (zh) | 2018-08-31 |
| HRP20241062T1 (hr) | 2024-11-08 |
| US20190228922A1 (en) | 2019-07-25 |
| PL3513419T3 (pl) | 2024-09-16 |
| MX2019003024A (es) | 2019-07-01 |
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