EP3050067A1 - Changeur de prise - Google Patents

Changeur de prise

Info

Publication number
EP3050067A1
EP3050067A1 EP14776854.3A EP14776854A EP3050067A1 EP 3050067 A1 EP3050067 A1 EP 3050067A1 EP 14776854 A EP14776854 A EP 14776854A EP 3050067 A1 EP3050067 A1 EP 3050067A1
Authority
EP
European Patent Office
Prior art keywords
preselector
tap changer
switching element
switch
switching
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
Application number
EP14776854.3A
Other languages
German (de)
English (en)
Other versions
EP3050067B1 (fr
Inventor
Uwe Kaltenborn
Thomas Strof
Christian Hurm
Anatoli Saveliev
Gerhard BÄUML
Alfred Bieringer
Eduard ZERR
Wolfgang Albrecht
Martin Hausmann
Andreas Stocker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maschinenfabrik Reinhausen GmbH
Scheubeck GmbH and Co
Original Assignee
Maschinenfabrik Reinhausen GmbH
Maschinenfabrik Reinhausen Gebrueder Scheubeck GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Maschinenfabrik Reinhausen GmbH, Maschinenfabrik Reinhausen Gebrueder Scheubeck GmbH and Co KG filed Critical Maschinenfabrik Reinhausen GmbH
Publication of EP3050067A1 publication Critical patent/EP3050067A1/fr
Application granted granted Critical
Publication of EP3050067B1 publication Critical patent/EP3050067B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H01H9/0027—Operating mechanisms
    • 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
    • H01H9/0011—Voltage selector switches
    • 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
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/0005—Tap change devices
    • H01H9/0038—Tap change devices making use of vacuum switches

Definitions

  • the present invention relates to a tap changer, as is commonly used in a control transformer having at least one main winding and a control winding.
  • the tap changer has at least one fine selector for Beschaltten more taps of the control winding and at least one connected to the main winding selection, via which the control winding is connected in different polarity with the parent winding.
  • By means of the tap changer series connection of the main winding with the control winding can be tapped according to the tapping of the control winding desired different voltages. In this way, it is possible to freely select the input / output voltage of the variable transformer in a desired range. It is needed for each phase of the three-phase current such a tap changer.
  • the tap changer is usually designed as a rotary switch.
  • the preselector and fine selector may be integrated on the axis of the rotary switch.
  • the fine selector is usually formed either by Fein hereleressore, which are arranged on different levels of a rotary switch. Each second tap of the control winding is connected alternately at each level. Between the arranged on both levels fine-selector contacts is switched by a known diverter switch, which usually has switching resistors. Such an arrangement is e.g. in DE 10 2009 060 132 described.
  • the fine selector can also be formed by a Fein Wegler prominence, which switches all arranged on a plane contacts the control winding. This fine-selection contact can also have switching resistances.
  • the preselector has at least one movable switching element and two switching contacts which can be contacted by the switching element, wherein the electrical connection permanently contacts the switching element.
  • the switching element is regularly connected to the main winding and the switch contacts with the two ends of the control winding. The electrical connection thus connects the switching element of the preselector with the
  • the preselector comprises at least one switching element which is mechanically or electrically coupled to at least one switching element of the coupling switch.
  • the coupling is designed such that the switching element of the preselector is set after closing the switching element of the coupling switch in a neutral position in which the selection is connected to neither of the two ends of the control winding. This has the purpose of excluding the preselection from the entire switching process, which is now realized by the fine selector itself.
  • the coupling is designed such that the switching element of the coupling switch opens after closing the switching element of the preselector. If at the end of the switching, the switching element of the preselector is contacted with the other end of the control winding to which the fine selector has previously switched, the coupling switch is thus automatically opened.
  • the gas-free switching of the fine-vote can be done by a known diverter switch. It is also possible to use a fine selector without diverter switch, which switches in one plane. This usually has a Fein Strukturlertive with Kochschaltwidermayn, to ensure in this way a gas-free switching from one tap to the next. However, instead of or in addition to the switching resistors, it can also be provided with one or more vacuum switches.
  • the diverter switch is often located in its own oil and gas-tight vessel.
  • the diverter switch has at least one transient resistance to make the transition phase of switching from one tap to the next uninterruptible.
  • the control winding remains in contact with the main winding, so that no voltages can occur, for example due to the capacitive coupling of the control winding relative to the main winding.
  • the fine selectors may have a diverter switch, as described in DE 10 2009 060 132. This allows gas-free switching operations of the fine selection.
  • the tap changer ie the preselector and / or the fine selector is designed as a rotary switch. Such an arrangement has proven to be advantageous for power transformers, which are used in particular in the field of power supply. If several phases of a transformer are to be switched simultaneously, the corresponding phases can be arranged in different levels of the rotary switch one behind the other. For example, all three phases of a three-phase current can be switched simultaneously.
  • the tap changer i. the selector and / or the fine selector, designed as a snap-action switch, which allows short switching operations and reduces the transition time of the switching from one tap to the next.
  • the preselector is designed as a reverser whose switching element is designed for connection to the main winding and whose two switching contacts are designed for contacting the two ends of the control winding.
  • Such a preselection circuit is very easy to implement and also reliable.
  • the invention further relates to a control transformer having at least one main winding and at least one control winding of the type described above, in which control transformer, the control winding has a plurality of taps, which are connected by the fine selector, and in which the selection connects the control winding in the desired with the parent winding ,
  • Wender the final position of the preselector
  • the coupling switch is switched to switch the preselector from its open normal position to a closed switching position. Since the coupling switch is closed only for switching over the preselector or inverter, the closed position is also called switchover position.
  • the preselection is now switched to a non-contacting neutral position. Since the control winding is connected to the main winding via the fine selector and the switching is to be carried out by means of the fine selector, the preselector must be brought into the non-contacting neutral position, otherwise there will be a potential difference between the inverter and the fine selector Connection and the coupling switch would be closed shortly. Now the fine selector is switched through all taps of the control winding to the other end of the control winding. This switching is effected, as already mentioned, by means of the auxiliary contacts which may be present or by means of a known diverter switch at least substantially free of gas. When the tap changer has reached the other end position on the control winding, the preselector is also switched to the new end position. Here, the preselector is due to the closed coupling contact at the same potential as the fine selector. Now the coupling switch is opened again to its normal position. This completes the arc and gas-free switching of the preselector.
  • the switching element of the preselector is coupled to the switching element of the coupling switch in order to automate the sequence of operation of the inverter and coupling switch and thus to make error-free.
  • the switching times for example the times in which both switching elements are closed, before one of the two switching elements opens again.
  • an electrical or electronic control for the operation of the switching elements of the inverter and / or the coupling switch can be used.
  • FIG. 1 is a circuit diagram of a tap changer of a control transformer with a main winding and a control winding, which tap changer comprises a preselector, fine selector, diverter switch and coupling switch
  • FIGS. 2a-f show a series of circuit diagrams for indicating the switching over of the preselector with the aid of the fine selector, e.g. in a control transformer from FIG.
  • the control transformer 10 includes a main winding 12 and a control winding 14 with a plurality of taps 16.
  • a tap changer 17 is arranged, which consists of a preselector 20 and a fine selector 18.
  • the fine selector 8 in turn consists of fine selector contacts 32, 34 and a diverter switch 24 which switches between the fine-selection contacts 32, 34.
  • the preselector 20 is designed as a turner.
  • the preselector 20 connects the control winding 14 with the main winding 12 in the desired polarity, and the Fein constructivell 8 selects via the Fein Weglertivee 32, 34 to be connected taps 16 of the control winding 14, wherein the switching between the Fein WeglerCounten 32, 34 in this embodiment on the Diverter 24 takes place.
  • the main winding 12 is connected to the switching element 22 of the preselector 20, while the switching contacts 21, 23 are connected to the ends of the control winding 14.
  • the switching element 22 of the preselector 20 thus connects either one of the two ends of the control winding via the switch contacts 21, 23 with the main winding 12 or it remains in a non-contacting neutral position, as shown in Fig. 2c and 2d.
  • the fine selector 8 is connected via a diverter switch 24 with a load discharge line 28.
  • the diverter switch 24 has a slide switch, which contacts the two fine-selection contact 32, 34 alternately under a short transition phase using transition resistances 30 of the diverter switch 24.
  • the diverter switch 24 thus contains two overshoot resistors 30, one of which is connected to a respective fine-selection contact 32, 34. In this way, the sliding switching element 26 moves over four contacts of the load changeover switch 24, wherein with the interposition of the switching resistors 30 of a tap 16 to the next tap 16 of the control winding 14 is switched.
  • the taps to be connected are pre-selected by the voltage selector contacts 32, 34 de-energized.
  • the sliding switching element 26 moves from the illustrated right end position in the diverter switch 24 to the left end position (dashed line) and vice versa.
  • the tap changer 17 can also be designed as a so-called load selector, in which the fine selector 18 consists of the diverter switch 24 and the fine selector contacts 32, 34.
  • the preselection of the tap to be connected 16 and the load switching is performed in one step.
  • the fine selector 18 is now connected via an electrical connection 36 to the preselector (inverter) 20, preferably to its switching element 22.
  • a coupling switch 38 is arranged, with which the connection between the load dissipation 28 of the diverter switch 24 and the main winding 12 can be interrupted.
  • the switching element 40 of the coupling switch 38 is preferably coupled via a mechanical or electrical coupling 42 with the switching element 22 of the inverter 20, whereby their activity can be synchronized.
  • the switching element may be formed as a vacuum interrupter or snap contact.
  • Fig. 2a shows the normal operating position of the tap changer 17, in which the coupling switch 38 is open, so that the voltage at the Lastab effet 28 of the diverter switch 24 corresponds to the voltage corresponding to the tap 16 of the control winding 14 and the corresponding voltage component of the main winding 12.
  • the coupling switch 38 is closed (Fig. 2b), when the fine selector 18 is on the contact position of the Wenders 20 corresponding winding tap 16 of the control winding 14.
  • the switching element 22 of the inverter 20 is switched to a non-contacting neutral position, as shown in Fig. 2c.
  • the switching elements 40 of the coupling switch 38 and the switching element 22 of the inverter 20 may be coupled together, so that the opening and closing of the switching elements coupled, that is inevitably synchronized.
  • the actuation can in a preferred embodiment via a transmission (not shown here), which is arranged between the diverter switch and selector, take place.
  • a transmission not shown here
  • the control winding 14 is now connected to the main winding 12 solely via the fine selector 18 and load changeover switch 24.
  • the diverter switch 24 always switches back and forth between the two fine selector contacts 32, 34, after which the fine selector has preselected the "next" tap.
  • the switching element 22 of the inverter again becomes active 20 in contact position with the lower end of the control winding 14, where the fine selector 18 and the diverter switch 24 are applied, since the inverter 20, the main winding 12 and the fine selector 18 with the diverter switch 24 via the closed coupling contact 38 at the same voltage level 2c, the switching transformer 38 is again opened, as shown in FIG has now returned to its normal operating position.

Abstract

L'invention concerne un changeur de prise comportant un présélecteur et un sélecteur fin, caractérisé en ce que le changeur de prise présente une connexion (36) entre le présélecteur et le sélecteur fin (18), dans laquelle au moins un commutateur de couplage (38) est disposé. Cette connexion commutable permet de réaliser la commutation d'un présélecteur à l'aide d'un sélecteur fin de façon sensiblement exempte de gaz.
EP14776854.3A 2013-09-26 2014-09-26 Changeur de prises Not-in-force EP3050067B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013110656.0A DE102013110656A1 (de) 2013-09-26 2013-09-26 Stufenschalter
PCT/EP2014/070586 WO2015044325A1 (fr) 2013-09-26 2014-09-26 Changeur de prise

Publications (2)

Publication Number Publication Date
EP3050067A1 true EP3050067A1 (fr) 2016-08-03
EP3050067B1 EP3050067B1 (fr) 2018-11-14

Family

ID=51626527

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14776854.3A Not-in-force EP3050067B1 (fr) 2013-09-26 2014-09-26 Changeur de prises

Country Status (6)

Country Link
US (1) US9984833B2 (fr)
EP (1) EP3050067B1 (fr)
CN (1) CN105580099B (fr)
DE (1) DE102013110656A1 (fr)
UA (1) UA121963C2 (fr)
WO (1) WO2015044325A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016117526B3 (de) * 2016-09-16 2018-02-15 Maschinenfabrik Reinhausen Gmbh Lasststufenschalter, Regeltransformator mit Laststufenschalter und Verfahren zum Schalten eines Laststufenschalters
CN106935425B (zh) * 2017-03-24 2018-09-07 西安森宝电气工程有限公司 一种与有载分接开关配套的极性转换器
US10747244B2 (en) * 2018-02-13 2020-08-18 SAI Advanced Power Solutions Transformer device with modified voltage tap arrangement
EP4002409A1 (fr) * 2020-11-13 2022-05-25 Hitachi Energy Switzerland AG Commutateur à prise de réglage

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5118609B1 (fr) * 1968-03-13 1976-06-11
US3609516A (en) * 1968-10-01 1971-09-28 Tsuneo Nagatoshi Slide transformer
JPS507727B1 (fr) * 1969-11-04 1975-03-28
DE2201937C2 (de) * 1972-01-15 1974-01-24 Reinhausen Maschf Scheubeck Anordnung zur Spannungsregelung von Stufentransformatoren
US4081741A (en) * 1975-10-29 1978-03-28 Asea Aktiebolag On-load tap changer
US4061963A (en) * 1976-04-27 1977-12-06 Westinghouse Electric Corporation Load tap changer system
SE402502B (sv) * 1976-10-29 1978-07-03 Asea Ab Lindningskopplare
DE19836463C1 (de) * 1998-08-12 1999-10-21 Reinhausen Maschf Scheubeck Stufenschalter mit einem Vorwähler
FR2873489B1 (fr) * 2004-07-20 2006-10-06 Areva T & D Sa Systeme de changement de prise de transformateur en charge
DE102009060132B3 (de) * 2009-12-23 2011-05-12 Maschinenfabrik Reinhausen Gmbh Stufenschalter mit Polungsschalter an einem Regeltransformator
CN102013815B (zh) * 2010-08-09 2012-09-05 国家电网公司 一种高压直流换流变压器及其有载调压开关连接方法
DE102012202667A1 (de) * 2012-02-22 2013-08-22 Maschinenfabrik Reinhausen Gmbh Stufenschalter an einem Regeltransformator

Also Published As

Publication number Publication date
WO2015044325A1 (fr) 2015-04-02
CN105580099A (zh) 2016-05-11
DE102013110656A1 (de) 2015-03-26
US9984833B2 (en) 2018-05-29
UA121963C2 (uk) 2020-08-25
US20160211089A1 (en) 2016-07-21
CN105580099B (zh) 2018-09-04
EP3050067B1 (fr) 2018-11-14

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Inventor name: STROF, THOMAS

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