WO2015193011A1 - Schaltanordnung mit zwei laststufenschaltern, elektrische anlage mit einer derartigen schaltanordnung sowie deren verwendung - Google Patents
Schaltanordnung mit zwei laststufenschaltern, elektrische anlage mit einer derartigen schaltanordnung sowie deren verwendung Download PDFInfo
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- WO2015193011A1 WO2015193011A1 PCT/EP2015/058976 EP2015058976W WO2015193011A1 WO 2015193011 A1 WO2015193011 A1 WO 2015193011A1 EP 2015058976 W EP2015058976 W EP 2015058976W WO 2015193011 A1 WO2015193011 A1 WO 2015193011A1
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- terminal
- switching
- diverter
- load tap
- changer
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- 238000004804 winding Methods 0.000 claims abstract description 157
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 230000004907 flux Effects 0.000 claims description 6
- 230000033228 biological regulation Effects 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 claims description 2
- 230000007935 neutral effect Effects 0.000 description 8
- 238000009472 formulation Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010616 electrical installation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
-
- 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
- H01H9/0044—Casings; Mountings; Disposition in transformer housing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/36—Arrangements for transfer of electric power between ac networks via a high-tension dc link
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P13/00—Arrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output
- H02P13/06—Arrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output by tap-changing; by rearranging interconnections of windings
Definitions
- the invention relates to a switching arrangement with two on-load tap-changers, an electrical system with two control windings and such a switching arrangement, the use of such a switching arrangement and the use of such a system.
- DE 19 50 466 A1 describes a controllable choke coil, which comprises a main winding, a fine-stage winding with a plurality of individual stages, a tap changer and between each two adjacent individual stages to be switched in lastromlosem state switching switch.
- Each rocker switch can switch the two respective individual stages either in series or on one side to the end of the main winding.
- a formulation of the type "A is connected to B" corresponds to a formulation of the type "A is connected to B"
- a formulation of the type "A is connected to B” means "A is directly electrically connected to B” and "A is indirectly, so via C, electrically connected to B”
- the invention proposes according to a first aspect a switching arrangement for an electrical system with a first and a second control winding before, comprising
- a first on-load tap changer having a first diverter terminal and at least three first switching terminals, at least two of which may or may be connected to associated first taps of the first control winding;
- a second on-load tap-changer having a second diverter terminal and at least three second switching terminals, at least two of which may or may be connected to associated second taps of the second control winding;
- the second diverter terminal is connected to the first diverter terminal or to a first terminal not associated with a first tap.
- connection terminal also referred to as “connection terminal” or “first connection terminal”
- first stage terminal each first switching terminal associated with one of the first taps
- second stage terminal each second switching terminal, which is assigned to one of the second taps
- the first switching terminals are also first stage terminals and at least two of the second switching terminals also second stage terminals.
- the second discharge terminal is indirectly or directly electrically conductively connected to the first discharge terminal or to the first connection terminal.
- a first connection terminal is not required, so that not only at least two, but at least three or all first switching terminals may be first stage terminals.
- one of the first switching terminals must be the first connection terminal so that at most the remaining first switching terminals can be first stage terminals.
- the proposed switching arrangement allows either at least a portion of the first control winding and at least a portion of the second control winding to be connected in series or at least a portion of the first control winding and / or at least a portion of the second control winding are bridged, and thus allows a strong extension of the control range and / or increasing the number of stages without the on-load tap-changer having to be designed for correspondingly higher voltages and / or currents.
- the on-load tap changers can only serially switch a minimum winding area of the first control winding with a minimum winding area of the second control winding, resulting in a minimum effective control turn number, ie the number of turns of the current flowed through or through Rule windings, leads.
- the switching arrangement can even bridge both control windings completely, resulting in an effective rule winding number equal to zero.
- the on-load tap-changers use, for example, for each control winding the maximum, uncomplicated switch off the winding area and switch it serially.
- the proposed switching arrangement may be formed as desired in any manner, for example
- Each on-load tap changer may be configured as desired in any manner, for example
- stage clamp and / or
- Each clamp may be formed as desired in any manner, such as a fixed contact or other connection.
- the switching arrangement is associated with a particular phase of the electrical system.
- the on-load tap-changers are assigned to the same or to a specific phase of the electrical system and / or are assigned to the same or to a specific magnetic circuit, and / or
- the second diverter terminal is only or exclusively connected to the first diverter terminal or to the first connection terminal; and or the connection of the second diverter terminal to the first diverter terminal or to the first connection terminal has no branch; and or
- the second diverter terminal is serially connected to the first diverter terminal or to the first connection terminal;
- the on-load tap-changer are connected in series by the connection of the second diverter terminal to the first diverter terminal or to the first connection terminal;
- an electrical two-pole which comprises, for example, at least one resistor and / or at least one inductor and / or at least one capacitor and / or at least one switch; and or
- the indirect connection of the second discharge terminal to the first discharge terminal or to the first connection terminal does not occur via one of the windings of the electrical installation and / or not via one of the on-load tap-changers.
- the second diverter terminal is connected to the first diverter terminal.
- the second diverter terminal is connected to the first connection terminal.
- the first discharge terminal may be connected to ground or ground potential or to a neutral point or to a vertex of a delta connection or to a system terminal of the electrical system or to a drain of the electrical system or to a power line of an AC network.
- the derivative for its part, can be connected to ground or ground potential or to a star point or a vertex of a delta connection, for example.
- the power line may be formed as desired in any way and be associated with, for example, a phase of the AC mains or as a neutral neutral point or neutral point of the AC network.
- the proposed switching arrangement can be designed to be multi-phase.
- one of the proposed switching arrangements in single-phase training may be provided or provided for each phase, which is or may be connected to the respective power line. It may be provided or specified that the switching arrangement comprises
- a third on-load tap changer having a third diverter terminal and three third switching terminals, at least two of which can be connected to associated third taps of a third control winding of the electrical system;
- the second diverter terminal is connected to the first terminal not associated with a first tap
- the first diverter terminal is connected to the third diverter terminal or to a third terminal not assigned to a third tap.
- At least one of the on-load tap changers includes a preselector with two preselector terminals and one base terminal.
- At least one of the preselector is designed as a turner
- the preselector terminals can be connected to the ends of the control winding associated with the respective on-load tap changer;
- the base terminal can be connected to a first plant terminal of the plant or to one end of a parent winding, which is inductively coupled to this control winding.
- At least one of the preselector is designed as a coarse selector
- the preselector terminals with the ends of a coarse winding which is inductively coupled to this control winding and in particular of this is electrically isolated, can be connected.
- At least two on-load tap changers are coupled in such a way that they switch in the same direction and in particular synchronously.
- switching in the same direction means that each of the coupled on-load tap-changers increases or decreases the effective number of turns with respect to the magnetic flux.
- the first and second on-load tap-changer are combined in a common switching device or realized or formed by a common switching device.
- the switching device is formed according to the fifth aspect.
- the switching device comprises a frame on which at least the first and second on-load tap-changer are mounted.
- the first on-load tap changer comprises a first diverter switch and a first selector
- the second on-load tap changer comprises a second diverter switch and a second selector
- the frame comprises a diverter switch frame and a selector frame
- the invention proposes according to a second aspect of an electrical system, comprising
- a first control winding having at least two first taps
- a first on-load tap-changer having a first diverter terminal and at least three first switching terminals, at least two of which are connected to associated first taps;
- a second on-load tap-changer having a second diverter terminal and at least three second switching terminals, at least two of which are connected to associated second taps of the second control winding;
- the proposed system may be configured as desired in any manner, for example
- the switching arrangement also be designed according to multi-phase.
- a single-phase switching arrangement may be provided or provided for each phase.
- Several single-phase switching arrangements can be interconnected, for example, in star connection or delta connection.
- Each control winding may be formed as desired in any manner, for example, such that it
- a separate winding or a part or section of a total winding which in particular also comprises at least one of the remaining control windings and / or at least one main winding forms; and or
- Each switching arrangement may be formed as desired in any manner, such as one of the switching arrangements proposed in accordance with the first aspect.
- the plant has a first plant terminal connected to the first control winding and a second plant terminal connected to the second control winding;
- the first plant terminal is connected to a first end of the first control winding and / or the second plant terminal is connected to a first end of the second control winding or to the first discharge terminal.
- the system can be connected to an AC network via the system terminals.
- the proposed system can be designed to be multi-phase and for each phase the corresponding system part can be or are connected to a respective network line of the AC network.
- one of the proposed systems can be provided or provided in single-phase training for each phase, which is or can be connected to the respective power line.
- each diverter terminal may or may not be connected to ground or ground potential, or to a neutral point or corner point of a delta connection, or to a plant terminal of the electrical system or to a drain of the electrical system or to a power line.
- the derivative, for its part can be connected to ground or earth potential or to a star point or a vertex of a delta connection, for example.
- Each power line may be formed as desired in any manner and be associated with, for example, a phase of the AC network or as a neutral neutral point or neutral point of the AC network. It may be provided or specified that includes the plant
- the second diverter terminal is connected to the first terminal not associated with a first tap
- the switching arrangement comprises
- a third on-load tap-changer having a third diverter terminal and three third switching terminals, at least two of which are connected to associated third taps;
- the first diverter terminal is connected to the third diverter terminal or to a third diverter terminal not associated with a third tap.
- the system comprises a main winding, which is inductively coupled to at least one control winding and in particular is connected in series.
- At least one on-load tap-changer comprises a preselector with two preselector terminals and a base terminal.
- the preselector may be configured as desired in any manner, for example
- At least one selection is designed as a turner; the preselector terminals are connected to the ends of the control winding associated with the respective on-load tap changer;
- the base terminal is connected to a first plant terminal of the plant or to one end of a parent winding, which is inductively coupled to this control winding.
- a coarse winding which is inductively coupled to the control winding, which is assigned to one of a selection comprising a load tap changer, and in particular is galvanically isolated from this;
- this selection is designed as a coarse voter
- the preselector terminals are connected to the ends of the coarse winding
- the base terminal is connected to one end of this control winding.
- the area of the line cross-section is constant;
- control windings are inductively coupled and / or penetrated by the same or a specific magnetic flux and / or are assigned to the same or a specific phase and / or sitting on a common magnetic core and / or the same or a specific magnetic circuit are assigned; and or
- control windings are connected in series via the on-load tap-changer.
- the system is designed as a compensation throttle or at least forms part of a compensation throttle. It can be provided or specified that the system is designed as a regulating transformer having a primary side and a secondary side or at least forms part of a regulating transformer having a primary side and a secondary side, wherein the control windings form at least part of the primary side or secondary side.
- control transformer is designed as a converter transformer.
- HVDC transformers are used in converter stations where high-voltage direct current Transmission (HVDC) the conversion of three-phase current into direct current and vice versa takes place.
- HVDC high-voltage direct current Transmission
- the invention proposes according to a third aspect, a use of a switching arrangement, which is formed according to the first aspect, for controlling and / or regulating and / or setting and / or switching an electrical system comprising a first and a second control winding and the is formed in particular according to the second aspect.
- control and / or regulation and / or adjustment and / or switching is performed by changing the effective control turn number in each of the control windings;
- the system is designed as a compensation reactor or as a control transformer or as a converter transformer.
- the invention proposes according to a fourth aspect, a use of an electrical system, which is formed according to the second aspect, as a compensation reactor or control transformer or converter transformer.
- the invention proposes, according to a fifth aspect, a switching device for an electrical system with a first and a second control winding, comprising a switching arrangement, which is formed according to the first aspect.
- the switching device comprises a frame on which at least the first and second on-load tap-changer are mounted.
- the first on-load tap changer comprises a first diverter switch and a first selector
- the second on-load tap changer comprises a second diverter switch and a second selector
- the frame comprises a diverter switch frame and a selector frame
- the invention proposes according to a sixth aspect, a use of a switching device in a switching arrangement, which is formed according to the first aspect, as a common switching device, in which the first and second on-load tap-changer as a structural unit are summarized or that realizes or forms the first and second on-load tap-changer.
- the switching device is formed according to the fifth aspect.
- the invention proposes, according to a seventh aspect, a use of a switching device, which is formed according to the fifth aspect, for producing a switching arrangement, which is formed according to the first aspect.
- FIG. 1 shows a first embodiment of an electrical system with two control windings and a first embodiment of a switching arrangement
- FIG. 2 shows a second embodiment of the system with a second embodiment of the switching arrangement
- FIG. 3 shows a third embodiment of the installation with a third embodiment of the switching arrangement
- FIG. 4 shows a fourth embodiment of the plant
- FIG. 5 shows a fifth embodiment of the plant
- FIG. 6 shows a sixth embodiment of the system with a fourth embodiment of the switching arrangement
- FIG. 7 shows a seventh embodiment of the installation with a fifth embodiment of the switching arrangement
- FIG. 8 shows a first embodiment of an on-load tap changer for the switching arrangement
- FIG. 9 shows a second embodiment of the on-load tap-changer
- FIG. 10 shows an eighth embodiment of the installation with a sixth embodiment of the switching arrangement
- FIG. 1 shows a ninth embodiment of the system with a seventh embodiment of the switching arrangement
- FIG. 12 shows a tenth embodiment of the system with an eighth embodiment of the switching arrangement
- FIG. 13 shows an eleventh embodiment of the system with a ninth embodiment of the switching arrangement
- FIG. 14 shows a twelfth embodiment of the system with a tenth embodiment of the switching arrangement
- FIG. 15 shows an eleventh embodiment of the switching arrangement
- FIG. Fig. 16 is a section taken along the axis A-A;
- FIG. 17 is a section along the axis B-B;
- FIG. Fig. 18 is a section taken along the axis C-C;
- FIG. 19 is a section along the axis D-D.
- FIG. 1 is a schematic representation of a first embodiment of an electrical system 10, which exemplarily forms a variable compensation reactor for providing and / or changing and / or influencing reactive power in an AC network (not shown).
- the plant 10 has first and second plant terminals 101, 102 which are or may be connected to power lines (not shown) of the AC mains.
- the system 10 comprises a first control winding 1 1 with four first taps 12, a second control winding 13 with four second taps 14 and a switching arrangement 15, which is formed according to a first embodiment.
- the switching arrangement 15 comprises a first on-load tap-changer 16 having a drainage terminal 161, also referred to as first drainage terminal 161, four switching terminals 162, also referred to as first switching terminals 162, and a moving contact system 163, also referred to as first moving contact system 163, and a second on-load tap-changer 17 with a Ableitklemme 171, also referred to as second Ableitklemme 171, four switching terminals 172, also referred to as second switching terminals 172, and a moving contact system 173, also referred to as the second moving contact system 173.
- the first switching terminals 162 are each associated with the first taps 12 and connected directly to these and are also referred to as first stage terminals.
- the second switching terminals 172 are each associated with the second taps 14 and connected directly to these and are also referred to as second stage terminals.
- the second discharge terminal 171 is directly connected to the first discharge terminal 161.
- Each moving contact system 163/173 is connected to the respective diverter terminal 161/171 and may be selectively brought into electrical contact with each of the respective stage terminals 162/172.
- the in FIG. 1 uppermost first tap 12 is connected to the upper, first end of the first control winding 1 1 and the first plant terminal 101, and the lowermost first tap 12 is connected to the lower, second end of the first control winding 1 1 or forms this second The End.
- the lowermost second tap 14 is connected to the lower, first end of the second control winding 13 and to the second system terminal 102, and the uppermost second tap 14 is connected to the upper, second end of the second control winding 13 or forms this second end.
- control windings 1 1, 13 are galvanic from each other separated and sitting on a common magnetic core (not shown), so that they are inductively coupled and are penetrated by the same magnetic flux.
- control windings 1 1, 13 are identical and the on-load tap changers 16, 17 are coupled in such a way that they switch in the same direction and synchronously.
- moving contact systems 163, 173 can be moved independently of time and / or in any direction.
- FIG. 2 a second embodiment of the system 10 is shown schematically. This embodiment is similar to the first embodiment of FIG. 1, so that in the following especially the differences are explained in more detail.
- the switching arrangement 15 is formed according to a second embodiment, which corresponds to the first embodiment of FIG. 1 is similar, so in the following especially the differences are explained in more detail.
- each on-load tap-changer 16/17 comprises a reversing preselected 18718 "with two 1817181" 1827181 "1827182" base terminal 1837183 "and 1847184" mating contact connected to the respective 1837183 "base terminal and optionally with each of them Preselection terminals 1817181 ", 1827182" can be brought into electrical contact.
- the first preselector terminal 1817181 is connected to the first end of the respective control winding 23/24
- the second preselection terminal 1827182 to the second end of the respective control winding 23/24 and the base terminal 1837183 "to the respective plant terminal 101/102 directly connected.
- each on-load tap-changer 16/17 comprises an additional switching terminal 1627172 'which can be contacted by the respective moving contact system 163/173 and with the respective base terminal 183, but not with one of the respective taps 12/14 is connected.
- additional switching terminals are also referred to as commutation terminals 1627172 '.
- FIG. 3 a third embodiment of the system 10 is shown schematically. This embodiment is similar to the second embodiment of FIG. 2, so that in the following especially the differences are explained in more detail.
- the system 10 comprises a first coarse winding 19, which is inductively coupled to the first control winding 1 1 and electrically isolated from this, and a second coarse winding 20, which is inductively coupled to the second control winding 13 and is electrically isolated from this.
- a first coarse winding 19 which is inductively coupled to the first plant terminal 101
- a second coarse winding 20 which is inductively coupled to the second control winding 13 and is electrically isolated from this.
- FIG. 3 upper, first end of the first coarse winding 19 connected to the first plant terminal 101, and the lower, second end of the first coarse winding 19 is connected to the first Kommut istsklemme 162 '.
- the lower, first end of the second coarse winding 20 is connected to the second plant terminal 102, and the upper, second end of the second coarse winding 20 is connected to the additional second commutation terminal 172 '.
- the switching arrangement 15 is formed according to a third embodiment, which corresponds to the second embodiment of FIG. 2 is similar, so in the following especially the
- the respective first preselector terminal 1817181 is connected to the first end of the respective coarse winding 19/20
- the respective second preselector terminal 1827182 is connected to the second end of the respective coarse winding 19.
- *** " / 20 and the respective base terminal 1837183 directly connected to the first end of the respective control winding 1 1/13.
- FIG. 4 a fourth embodiment of the system 10 is shown schematically. This embodiment is similar to the first embodiment of FIG. 1, so that in the following especially the differences are explained in more detail.
- the plant 10 exemplarily forms a single-phase regulating transformer with a high voltage or primary side 21 and an undervoltage or secondary side 22.
- the plant 10 has third and fourth plant terminals 103, 104 connected to power lines (not shown) of the AC mains or other AC mains (not shown) are connected or can be.
- the control windings 1 1, 13 form part of the primary side 21.
- the system 10 comprises the primary side 21 a first trunk winding 23 which is inductively coupled to the first control winding 1 1 and connected in series, and on the secondary side 22, a second parent winding 24, which is inductively coupled to the windings 1 1, 13, 21 of the primary side 21 and of these is galvanically isolated.
- the first main winding 23 is connected in series between the first end of the first control winding 11 and the first plant terminal 101. This is shown in FIG. 4 upper end of the second main winding 24 is connected to the third plant terminal 103, the lower end to the fourth plant terminal 104.
- FIG. 5 a fifth embodiment of the system 10 is shown schematically. This embodiment is similar to the fourth embodiment of FIG. 4, so that in the following especially the differences are explained in more detail.
- control windings 1 1, 13 and the first main winding 23 form the secondary side 22 and are not connected between the first and second plant terminal 101, 102, but between the third and fourth plant terminal 103, 104.
- the second main winding 26 forms the secondary side 22 and is not connected between the third and fourth plant terminal 103, 104, but between the first and second plant terminal 101, 102.
- FIG. 6 a sixth embodiment of the system 10 is shown schematically. This embodiment is similar to the first embodiment of FIG. 1, so that in the following especially the differences are explained in more detail.
- this embodiment eliminates the lowermost first tap 12 of the first embodiment and the second end of the first control winding 1 1 connected to the second end of the second control winding 13, so that the control windings 1 1, 13 are not galvanically separated from each other.
- the switching arrangement 15 is formed according to a fourth embodiment, which corresponds to the first embodiment of FIG. 1 is similar, so in the following especially the differences are explained in more detail.
- the in FIG. 6 lowermost first switching terminal 162 "not directly connected to a first tap 12 and therefore forms a first connection terminal 162".
- the second diverter terminal 171 is directly connected to this first connection terminal 162 ", not to the first diverter terminal 161.
- the first diverter terminal 161 is connected to the second system terminal 102.
- FIG. 7 a seventh embodiment of the system 10 is shown schematically. These Embodiment is similar to the sixth embodiment of FIG. 6, so that in the following especially the differences are explained in more detail.
- the switching device 15 is formed according to a fifth embodiment, which is the fourth embodiment of FIG. 6 is similar, so in the following especially the differences are explained in more detail.
- the provided or existing in the fourth embodiment topmost first stage terminal 162.
- the switch assembly 15 includes for both on-load switches 16, 17 together designed as a Wender selection 18 with two preselection terminals 181, 182, a base terminal 183 and a moving contact 184th Die
- the first preselection terminal 181 is directly connected to the first end of the first control winding 23
- the second preselector terminal 182 is directly connected to the first end of the second control winding 24, and the base terminal 183 is directly connected to the first plant terminal 101.
- the first on-load tap-changer 16 includes a commutation terminal 162 'that may be contacted by the first moving contact system 163 and connected to the base terminal 183 but not to any of the first taps 12.
- a first embodiment of the first on-load tap-changer 16 is shown schematically above.
- the second on-load tap-changer 17 is shown in FIG. 8 schematically shown below and also formed according to this embodiment, but may also be designed differently.
- each on-load tap-changer 16/17 is designed as a load switch and includes a 25725 "diverter switch with two 2517251", 2527252 ", one 2537253" base contact, and one moving contact connected to the respective 2537253 "base terminal and can be connected to either one of them
- the first moving contact system 163 is designed as a selector and is also referred to as the first selector 163.
- the second moving contact system 173 is designed as a selector and is also used as a second selector
- Each selector 163/173 comprises two movable selector arms 26726 ", 27727" which are independent can be moved from each other.
- Each first selector arm 26726 is connected to the respective first selector switch terminal 2517251” and can optionally be connected to the - in FIG. 8 counted from above - respective first and third switching terminal 162/172 are brought into electrical contact.
- Each second selector arm 27727 is connected to the respective second selector switch terminal 2527252" and may be selectively brought into electrical contact with the respective second and fourth switch terminals 162/172.
- FIG. 9 a second embodiment of the first on-load tap-changer 16 is shown schematically above.
- the second on-load tap-changer 17 is shown in FIG. 9 schematically shown below and also formed according to this embodiment, but may also be designed differently. This embodiment is similar to the first embodiment of FIG. 8, so that in the following especially the differences are explained in more detail.
- each on-load tap-changer 16/17 is designed as a load selector.
- the load transfer switch 25725 "of the first embodiment is dispensed with
- the respective selector arms 26726", 27727 can only be moved together and with a predetermined distance from each other They are connected to the respective discharge terminal 161/171 and can optionally be connected to
- Each switching terminal 162/172 has a contact surface facing the respective selector arm 26726 ", 27727", and in each on-load tap-changer 16/17, the distance between the contact tips is respective selector arms 26726 ", 27727" are selected with respect to the dimensions of the contact surfaces in the direction of movement in such a way that both contact tips abut the same contact surface in the stationary state, which is shown in Figure 9.
- the gap between each two adjacent contact surfaces is smaller than the distance between the contact points selected, sod when moving the selector arms 26726 ", 27727" to an adjacent contact surface always at least one of the selector arms 26726 ", 27727” is applied to at least one of the adjacent contact surfaces.
- FIG. 10 an eighth embodiment of the system 10 is shown schematically. This embodiment is similar to the sixth embodiment of FIG. 6, so that in the following especially the differences are explained in more detail.
- the system 10 includes a third control winding 28 with four third taps 29, which is galvanically isolated from the other two control windings 1 1, 13 and sits on the common magnetic core, so that all three control windings 1 1, 13, 28 are inductively coupled and interspersed with the same magnetic flux become.
- At the second plant terminal 102 is not the first discharge terminal 161, but the in FIG. 10 lower, first end of the third control winding 28 connected.
- the switching device 15 is formed according to a sixth embodiment, which is the fourth embodiment of FIG. 6, so that the differences are explained in more detail in the following.
- the switching arrangement 15 comprises a third on-load tap-changer 30 with a discharge terminal 301, also referred to as a third discharge terminal 301, four switching terminals 302, also referred to as third switching terminals 302, and a moving contact system 303, also referred to as a third moving contact system 303.
- the third switching terminals 302 are each associated with the third taps 29 and connected directly to these and are also referred to as third stage terminals.
- the third moving contact system 203 is connected to the third diverter terminal 301 and may be selectively brought into electrical contact with each of the third stage terminals 302.
- the first discharge terminal 161 is not connected to the second plant terminal 102, but to the third discharge terminal 301.
- the in FIG. The uppermost third tap 29 is connected to the upper, second end of the third control winding 28, and the lowermost third tap 29 is connected to the second end of the third control winding 28 and forms this second end.
- FIG. 1 a ninth embodiment of the system 10 is shown schematically. This embodiment is similar to the sixth embodiment of FIG. 6, so that in the following especially the differences are explained in more detail.
- the system 10 comprises a third control winding 28 with three third taps 29, which is connected in series between the first system terminal 101 and the first end of the first control winding 1 1 and sits on the common magnetic core, so that all three control windings 1 1, 13, 28 are inductively coupled and penetrated by the same magnetic flux.
- the switching device 15 is formed according to a seventh embodiment, which is the sixth embodiment of FIG. 10 is similar, so in the following especially the differences are explained in more detail.
- the third on-load tap-changer 30 is identical in construction to the first on-load tap-changer 16 and, analogously to this, to the third control winding 28.
- the in FIG. 1 1 lowest third switching terminal 302 "forms a third connection terminal 302".
- the first discharge terminal 161 is connected to the third connection terminal 302 ", not to the second system terminal 102.
- the third discharge terminal 301 is connected to the second system terminal 102.
- FIG. 12 a tenth embodiment of the system 10 is shown schematically. This embodiment is similar to the first embodiment of FIG. 1, so that in the following especially the differences are explained in more detail.
- the switching arrangement 15 is formed according to an eighth embodiment, which corresponds to the first embodiment of FIG. 1 is similar, so in the following especially the differences are explained in more detail.
- the switching arrangement 15 comprises a single switching device 31 with a frame (not shown) to which the on-load tap changers 16, 17 are attached.
- the on-load tap-changer 16, 17 are combined as a unit in the common switching device 31 and are realized and formed by this.
- the switching device 31 has as interfaces to the outside of the switching terminals 162, 172, where it is connected to the taps 12, 14.
- FIG. 13 an eleventh embodiment of the system 10 is shown schematically. This embodiment is similar to the second embodiment of FIG. 2, so that in the following especially the differences are explained in more detail.
- the switching device 15 is formed according to a ninth embodiment, which is the second embodiment of FIG. 2 is similar, so in the following especially the differences are explained in more detail.
- the switchgear assembly 15 comprises a single switchgear 31 with a frame (not shown) to which the on-load tap-changers 16, 17 including their preselector 18 ', 18 "are mounted, thus the on-load tap-changers 16, 17 are integrated in the common switchgear
- the switching device 31 has, as interfaces to the outside, the switching terminals 162, 162 ', 172, 172', to which it is connected to the taps 12, 14 and the first and second system terminals 101, 102 , as well as the first and second Preselection terminals 181 ', 181 ", 182', 182" and the base terminals 183 ', 183 ", to which it is connected to the ends of the control windings 1 1, 13 and the first and second system terminal 101, 102.
- FIG. 14 a twelfth embodiment of the system 10 is shown schematically. This embodiment is similar to the third embodiment of FIG. 3, so that in the following especially the differences are explained in more detail.
- the switching device 15 is formed according to a tenth embodiment, which is the third embodiment of FIG. 3 is similar, so in the following especially the differences are explained in more detail.
- the switchgear assembly 15 comprises a single switchgear 31 with a frame (not shown) to which the on-load tap-changers 16, 17 including their preselector 18 ', 18 "are mounted, thus the on-load tap-changers 16, 17 are integrated in the common switchgear
- the switching device 31 has, as interfaces to the outside, the switching terminals 162, 162 ', 172, 172', to which it is connected to the taps 12, 14 and the second ends of the coarse windings 19, 20 , and the first and second preselection terminals 181 ', 181 ", 182', 182" and the base terminals 183 ', 183 ", to which it is connected to the ends of the coarse windings 19, 20 and the first ends of the control windings 1 1, 13 is.
- FIG. 15 16, 17, 18, and 19 there is shown schematically an eleventh embodiment of the switching device 15 which is the tenth embodiment of FIG. 14 is similar, so in the following especially the differences are explained in more detail.
- each on-load tap changer 16/17 according to the first embodiment of FIG. 8, but comprises seventeen first switching terminals 162, seventeen second switching terminals 172 and according to the tenth embodiment of FIG.
- the selector 18718 is formed as a coarse selector.
- the frame 32 includes a diverter switch frame 321 to which the diverter switches 25 ', 25" are attached, and a selector frame 322 to which the selectors 163, 173 are stacked are.
- the diverter switch rack 321 is formed as a cylindrical oil tank of electrical insulating material filled with insulating oil and accommodating therein the diverter switches 25 ', 25 " and a cage-type scaffold with vertical selection bars 35 of electrical insulant and with vertical preselector bars 36 of electrical insulant.
- the selector bars 35 are arranged on a first circle around the selector axis 33, and the preselector bars 36 are arranged on a second circle around the preselector axis 34.
- the selector arms 26 ', 26 ", 27', 27" are rotatably mounted one above the other on the selector shaft 33, and the diverter switch arms 254 ', 254 "are rotatably mounted on the selector shaft 34.
- each selector 163/173 those are the first Wählarm 26726 "associated switching terminals 162/172 attached to the selector rods 35 in a plane in which this first leverarm 26726" is, and are the respective second devisrarm 27727 "associated switching terminals 162/172 and the respective second devisrarm 27727” associated Kommut istsklemme 1627172 'attached to the selector rods 35 in a plane in which this second selector arm 27727 "is located.
- the first commutation terminal 162 ' is connected to the second preselection terminal 182' of the first preselector 18 '
- the second commutation terminal 172' is connected to the second preselection terminal 182 "of the second preselector 18.
- the cylindrical diverter switch frame 321 is divided symmetrically into three 120 ° sectors, of which the one shown in FIG. 18 and 19 lower sector receives the first diverter switch 25 'and the upper sector receives the second diverter switch 25 "in the wall of the diverter switch rack 321 is mounted in a lower level, the switch terminal 251' of the first diverter switch 25 'in the lower sector close to the upper sector, the second changeover switch terminal 252 'of the first changeover switch 25' in the lower sector is fastened close to the right sector, the first changeover switch terminal 251 "of the second changeover switch 25" in the upper sector is fastened near the right sector, and the second changeover switch terminal 252 "of the second changeover switch 25" in FIG In the wall of the diverter switch rack 321, three terminals are mounted in an upper level on the sector boundaries, of which the lower terminal in Fig.
- a diverter ring 37 is connected to these three terminals and thus serves as a connecting line 37 between the Ableitklemmen 161, 171st
- a first connection line 38 is connected to the first selector arm 26 'of the first selector 163 and the first changeover switch terminal 251' of the first diverter switch 25 '.
- a second connection line 39 is connected to the second selector arm 27 'of the first selector 163 and the second changeover terminal 252' of the first diverter switch 25 '.
- a third connection line 40 (partially hidden by the second connection line 39 in Fig.
- the selector frame 322 can also be designed differently and, for example, instead of the selector rods 35 and / or preselector bars 36 comprise a one-piece cylinder of electrical insulating material to which the switching terminals and / or commutation and / or the selection terminals and / or the base terminals are attached.
- An on-load tap changer with such a selector frame is offered, for example, by ABB AB, Sweden under the designation "VUCG", this on-load tap changer additionally comprising a third selector mounted between the other two selectors on the selector frame.
- the selector frame 322 can, for example, instead of the selector rods 35 and / or preselector bars 36 partially cylindrical or circular arc cylindrical segments of electrical insulant, to which the switching terminals and / or commutation and / or the selection terminals and / or the base terminals are attached.
- the diverter switch frame 321 can also be designed differently and, for example, be divided symmetrically into three adjacent columns, one of which first column, which is, for example, an outer column, the first diverter switch 25 'and a second column, which is, for example, the other outer column or the middle column, receives the second diverter switch 25 "An on-load tap changer with such diverter switch rack is exemplified by ABB AB , Sweden under the name "VUCG" offered, this on-load tap-changer also includes a third diverter switch, which receives the remaining third column.
- the system 10 according to the invention, the switching arrangement 15 according to the invention and the switching device 31 according to the invention can be produced by way of example using the above-mentioned on-load tap-changer »VACUTAP® VRG II 1302 » or the above-mentioned on-load tap-changer »VUCG «.
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- Engineering & Computer Science (AREA)
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- Ac-Ac Conversion (AREA)
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Abstract
Description
Claims
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201580001173.8A CN105556815B (zh) | 2014-08-22 | 2015-04-24 | 用于具有调节绕组的电气设施的切换器件和电气设施 |
EP15719204.8A EP3183738A1 (de) | 2014-08-22 | 2015-04-24 | Schaltanordnung mit zwei laststufenschaltern, elektrische anlage mit einer derartigen schaltanordnung sowie deren verwendung |
KR1020157036961A KR102484221B1 (ko) | 2014-08-22 | 2015-04-24 | 2개의 부하시 탭 전환기를 구비한 스위칭 배열체, 그러한 유형의 스위칭 배열체를 포함하는 전기 시스템, 및 그 용도 |
US14/894,403 US10269511B2 (en) | 2014-08-22 | 2015-04-24 | Switching circuit with two load tap changers, electrical assembly with such a switching circuit, and use thereof |
CA2917404A CA2917404C (en) | 2014-08-22 | 2015-04-24 | Circuit with two on-load tap changers, electrical plant with such a circuit, and use thereof |
UAA201512700A UA112510C2 (uk) | 2014-08-22 | 2015-04-24 | Перемикальний пристрій, що містить два силових ступеневих перемикачі, електрична установка, що містить такий перемикальний пристрій, а також їх застосування |
BR112015033030-4A BR112015033030B1 (pt) | 2014-08-22 | 2015-04-24 | Arranjo de circuito, planta elétrica, aparelho de alternação para uma planta elétrica, e uso do dito aparelho de alternação em um arranjo de circuito |
JP2017529136A JP6586461B2 (ja) | 2014-08-22 | 2015-04-24 | 二つの負荷時タップ切換器を有する切換装置、その切換装置を有する電気設備及びそれらの使用方法 |
RU2015155261A RU2673793C2 (ru) | 2014-08-22 | 2015-04-24 | Коммутационное устройство с двумя переключателями ступеней нагрузки, электрическая установка с подобным коммутационным устройством и их применение |
MX2015017647A MX347001B (es) | 2014-08-22 | 2015-04-24 | Arreglo de circuitos con dos selectores de posición de toma de carga, instalación eléctrica con un arreglo de circuitos de éste tipo y su uso. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102014012266.2 | 2014-08-22 | ||
DE102014012266.2A DE102014012266B4 (de) | 2014-08-22 | 2014-08-22 | Schaltanordnung mit zwei Laststufenschaltern, elektrische Anlage mit einer derartigen Schaltanordnung sowie deren Verwendung |
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WO2015193011A1 true WO2015193011A1 (de) | 2015-12-23 |
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US (1) | US10269511B2 (de) |
EP (1) | EP3183738A1 (de) |
JP (1) | JP6586461B2 (de) |
KR (1) | KR102484221B1 (de) |
CN (1) | CN105556815B (de) |
BR (1) | BR112015033030B1 (de) |
CA (1) | CA2917404C (de) |
DE (1) | DE102014012266B4 (de) |
MX (1) | MX347001B (de) |
RU (1) | RU2673793C2 (de) |
UA (1) | UA112510C2 (de) |
WO (1) | WO2015193011A1 (de) |
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WO2017186429A1 (de) * | 2016-04-25 | 2017-11-02 | Siemens Aktiengesellschaft | Elektrisches hochspannungsgerät mit einer regelwicklungsgruppe |
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DE102015102727A1 (de) * | 2015-02-25 | 2016-08-25 | Maschinenfabrik Reinhausen Gmbh | Verfahren zum Ändern der aktiven Windungszahl einer Regelwicklung in einer elektrischen Anlage und elektrische Anlage mit einer Regelwicklung |
BR112017024223B1 (pt) * | 2015-06-15 | 2022-11-01 | Omicron Electronics Gmbh | Aparelho de comutação, aparelho de teste e método para operar um aparelho de comutação para um dispositivo de medição para um transformador |
EP3258475B1 (de) * | 2016-06-17 | 2021-02-17 | ABB Power Grids Switzerland AG | Laststufenschalter für lineares schalten |
US10890932B2 (en) | 2018-08-20 | 2021-01-12 | Eaton Intelligent Power Limited | Electrical network configured to magnetically couple to a winding and to control magnetic saturation in a magnetic core |
US11538614B2 (en) * | 2019-11-20 | 2022-12-27 | General Electric Technology Gmbh | Flexible transformer system |
US11735923B2 (en) | 2020-07-28 | 2023-08-22 | Eaton Intelligent Power Limited | Voltage regulation device that includes a converter for harmonic current compensation and reactive power management |
CN112992497A (zh) * | 2021-03-22 | 2021-06-18 | 保定天威保变电气股份有限公司 | 一种用于可调电抗器的固定连接式分接绕组 |
CN112992511A (zh) * | 2021-03-22 | 2021-06-18 | 保定天威保变电气股份有限公司 | 一种采用固定连接式分接绕组的三相可调并联电抗器接线结构 |
CN112951576A (zh) * | 2021-03-22 | 2021-06-11 | 保定天威保变电气股份有限公司 | 一种用于可调电抗器的开关连接式分接绕组的接线方法 |
AT526361B1 (de) * | 2022-12-21 | 2024-02-15 | Andritz Ag Maschf | Regelbare Gleichrichteranordnung für die Wasserstoff-Elektrolyse |
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WO2017186429A1 (de) * | 2016-04-25 | 2017-11-02 | Siemens Aktiengesellschaft | Elektrisches hochspannungsgerät mit einer regelwicklungsgruppe |
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Also Published As
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KR102484221B1 (ko) | 2023-01-02 |
CN105556815A (zh) | 2016-05-04 |
US10269511B2 (en) | 2019-04-23 |
CA2917404C (en) | 2023-08-22 |
JP6586461B2 (ja) | 2019-10-02 |
EP3183738A1 (de) | 2017-06-28 |
BR112015033030A2 (de) | 2017-07-25 |
US20170154738A1 (en) | 2017-06-01 |
RU2015155261A (ru) | 2017-06-28 |
MX2015017647A (es) | 2016-03-23 |
MX347001B (es) | 2017-04-07 |
DE102014012266B4 (de) | 2024-10-02 |
BR112015033030B1 (pt) | 2022-08-30 |
RU2015155261A3 (de) | 2018-06-14 |
RU2673793C2 (ru) | 2018-11-30 |
CN105556815B (zh) | 2020-03-17 |
CA2917404A1 (en) | 2015-12-23 |
DE102014012266A1 (de) | 2016-01-07 |
UA112510C2 (uk) | 2016-09-12 |
JP2017524272A (ja) | 2017-08-24 |
KR20170042456A (ko) | 2017-04-19 |
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