EP0116748A1 - Changeur de prises en charge - Google Patents

Changeur de prises en charge Download PDF

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Publication number
EP0116748A1
EP0116748A1 EP83306465A EP83306465A EP0116748A1 EP 0116748 A1 EP0116748 A1 EP 0116748A1 EP 83306465 A EP83306465 A EP 83306465A EP 83306465 A EP83306465 A EP 83306465A EP 0116748 A1 EP0116748 A1 EP 0116748A1
Authority
EP
European Patent Office
Prior art keywords
switch
current
tap
main
switches
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.)
Withdrawn
Application number
EP83306465A
Other languages
German (de)
English (en)
Inventor
Yuji Mihara
Kazuya Furukawa
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP0116748A1 publication Critical patent/EP0116748A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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

Definitions

  • This invention relates to an on-load tap changer, and more particularly to an on-load tap changer which employs resistors as current-limiting bridge elements.
  • FIG. 1 of the accompanying drawings A known on-load tap changer of this type is shown in Figure 1 of the accompanying drawings.
  • the tap selecting arms 1 and 2 of a tap selector for respectively selecting the odd-numbered side tap and even-numbered side tap of a transformer adjusting winding T are connected to the winding.
  • An odd-numbered side input terminal 3 and even-numbered side input terminal 4 are respectively connected to the tap selecting arms 1 and 2.
  • An odd-numbered side main switch A and even-numbered side main switch B are respectively connected to the input terminals 3 and 4.
  • the respective main switches are constructed of stationary contacts 5, 6, and movable contacts 7. 8 adapted to come into and out of contact with the stationary contacts 5, 6.
  • Current-limiting resistors Rl, R2 are connected in parallel with the respective main switches A, B, and electric paths are changed so that load currents may flow through the current-limiting resistors Rl, R2 when the main switches are opened.
  • an odd-numbered side auxiliary switch C and even-numbered side auxiliary switch D are connected to a common output terminal 13.
  • the respective auxiliary switches are constructed of stationary contacts 9, 10 connected to the corresponding movable contacts 7, 8, and movable contacts 11, 12 adapted to come into and out of contact with the corresponding stationary contacts 9, 10.
  • Figure 1 illustrates the state in which the movable contacts 7 and 11 are respectively engaged with stationary contacts 5 and 9. so that the load current is conducted by the odd-numbered side tap to pass along the path from the transformer adjusting winding T.
  • the main switches A and B are located on the input terminal side and have the current-limiting resistors connected in parallel therewith, the inter-tap voltage of the transformer winding is applied across the main switch at all times. This leads to the disadvantage that the switching drive mechanism of the main switch must be sufficiently insulated.
  • An object of this invention is to eliminate the disadvantage of the prior art as stated above, without losing the advantages thereof.
  • main switches on an odd-numbered side and an even-numbered side, and current-limiting resistors connected in parallel therewith, are disposed on the output terminal side, while the auxiliary switches are disposed on the input terminal or tap selector side.
  • the stationary contacts of the main switches and auxiliary switches are arrayed on the input terminal side, with the movable contact thereof being arrayed on the output terminal side: and the tap selectors and the stationary contacts of the auxiliary switches, the movable contacts of the auxiliary switches and the stationary contacts of the main switches, and the movable contacts of the main switches and an output terminal, are respectively connected.
  • an inter-tap voltage acts on the movable contact of the auxiliary switch only midway of the tap change.
  • the invention accordingly provides an on-load tap changer which is highly reliable in insulation and in which no inter-tap voltage acts on the movable contacts of the main and auxiliary switches no matter which of the odd-numbered side or the even-numbered side is closed to execute a steady operation.
  • Figure 3 illustrates the state of steady operation with an odd-numbered tap, in which the movable contact 7 of the odd-numbered side main switch A and the movable contact 11 of the odd-numbered side auxiliary switch C are respectively engaged with the stationary contact 5 of the main switch A and the stationary contact 9 of the auxiliary switch C, respectively, so that a load current flows from the transformer adjusting winding T through the current path
  • the movable contacts 7, 8, 11 are at the potential of the output terminal, and also the movable contact 12 of the "even" auxiliary switch is at the output potential through the current-limiting resistor R2.
  • the device of the invention keeps intact the advantage of the prior-art device that even when the abnormal voltage tends to form a short-circuit or there is no inter-tap short-circuit, owing to the insertion of the current-limiting resistor Rl or R2 Furthermore, the movable contacts of the main and auxiliary switches on the side which is closed in the steady operation state and the movable contact of the main switch on the opened side lie, of course, at the output terminal potential, and also the movable contact of the auxiliary switch on the opened side attains the output terminal potential through the current-limiting resistor, so that all of the four movable contacts 7, 8, 11, 12 can be held at the output terminal potential.
  • the movable contacts are driven by switching drive mechanisms which are set at the output terminal potential, the movable contacts of the two auxiliary switches located on the input terminal sides are driven through insulators, but unlike the prior-art device, the insulators have voltages applied thereto only during the transient period of the tap change and have no voltage applied thereto during the steady operation. This adds the advantage that the reliability of insulation is sharply enhanced.
  • FIG 4 shows another embodiment, in which vacuum switches A1, Bl and Cl, Dl are respectively employed as the main switches A, B and auxiliary switches C, D in Figure 3, and which achieves similar effects.
  • this invention has the effect of remarkably enhancing the reliability of tap change by a simple construction.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Electrical Variables (AREA)
  • Protection Of Transformers (AREA)
EP83306465A 1983-01-07 1983-10-25 Changeur de prises en charge Withdrawn EP0116748A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP135683A JPS59125418A (ja) 1983-01-07 1983-01-07 負荷時タツプ切換装置
JP1356/83 1983-01-07

Publications (1)

Publication Number Publication Date
EP0116748A1 true EP0116748A1 (fr) 1984-08-29

Family

ID=11499209

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83306465A Withdrawn EP0116748A1 (fr) 1983-01-07 1983-10-25 Changeur de prises en charge

Country Status (2)

Country Link
EP (1) EP0116748A1 (fr)
JP (1) JPS59125418A (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5006784A (en) * 1987-06-25 1991-04-09 Elin-Union Thyristor on-load change-over switch
EP0424632A1 (fr) * 1989-10-27 1991-05-02 Maschinenfabrik Reinhausen Gmbh Dispositif et procédé pour la commutation de réglage en charge destiné aux commutateurs en charge de graduateurs de réglage en charge
DE3943514C2 (fr) * 1988-06-15 1992-02-06 Kabushiki Kaisha Toshiba, Kawasaki, Kanagawa, Jp
AT399963B (de) * 1987-12-18 1995-08-25 Elin Oltc Gmbh Stufenschalter Überschalt-widerstand i
US20110031220A1 (en) * 2006-08-23 2011-02-10 Abb Technology Ltd. Vacuum based diverter switch for tap changer
EP2509089A1 (fr) 2011-04-04 2012-10-10 ABB Technology Ltd Changeur de prise
EP2530693A1 (fr) 2011-05-31 2012-12-05 ABB Technology Ltd Changeur de prise
EP2535910A1 (fr) 2011-06-15 2012-12-19 ABB Research Ltd. Accumulateur d'énergie pour actionner un dispositif de commutation, changeur de prise et transformateur
CN102832075A (zh) * 2011-06-15 2012-12-19 上海华明电力设备集团有限公司 真空有载分接开关双真空管过渡电路
EP2535911A1 (fr) 2011-06-15 2012-12-19 ABB Research Ltd. Boîte de vitesses pour changeur de prise, changeur de prise et transformateur
DE102013208419A1 (de) * 2013-05-07 2014-11-13 Schneider Electric Industries Sas Verfahren und Vorrichtung zum reversiblen Schalten von Wechselströmen bei Mittel- und Hochspannung
EP3731250A1 (fr) 2019-04-23 2020-10-28 ABB Power Grids Switzerland AG Unité de ressort et commutateur de déviateur
WO2022096124A1 (fr) 2020-11-06 2022-05-12 Hitachi Energy Switzerland Ag Changeur de prise et ensemble transformateur comprenant un changeur de prise
JP2022536704A (ja) * 2019-06-12 2022-08-18 マシイネンフアブリーク・ラインハウゼン・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング 負荷時タップ切換器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1538262A1 (de) * 1964-06-12 1970-02-19 Zd Y V I Plzen Regelumschalter
DE1813871A1 (de) * 1968-12-11 1970-07-02 Siemens Ag Anordnung zur unterbrechungslosen Lastumschaltung von Stufentransformatoren od.dgl.
DE2329072B1 (de) * 1973-06-07 1974-09-19 Maschinenfabrik Reinhausen Gebrueder Scheubeck Kg, 8400 Regensburg Schaltanordnung für Lastumschalter von Stufenschaltern für Regeltransformatoren
DE2348091B1 (de) * 1973-09-25 1975-01-09 Reinhausen Maschf Scheubeck Dreiphasiger zylindrischer Lastumschalter fuer Stufenschalter von Stufentransformatoren
DE2357209B1 (de) * 1973-11-16 1975-02-13 Maschinenfabrik Reinhausen Gebrueder Scheubeck Kg, 8400 Regensburg Stufenschalter für Stufentransformatoren

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1538262A1 (de) * 1964-06-12 1970-02-19 Zd Y V I Plzen Regelumschalter
DE1813871A1 (de) * 1968-12-11 1970-07-02 Siemens Ag Anordnung zur unterbrechungslosen Lastumschaltung von Stufentransformatoren od.dgl.
DE2329072B1 (de) * 1973-06-07 1974-09-19 Maschinenfabrik Reinhausen Gebrueder Scheubeck Kg, 8400 Regensburg Schaltanordnung für Lastumschalter von Stufenschaltern für Regeltransformatoren
DE2348091B1 (de) * 1973-09-25 1975-01-09 Reinhausen Maschf Scheubeck Dreiphasiger zylindrischer Lastumschalter fuer Stufenschalter von Stufentransformatoren
DE2357209B1 (de) * 1973-11-16 1975-02-13 Maschinenfabrik Reinhausen Gebrueder Scheubeck Kg, 8400 Regensburg Stufenschalter für Stufentransformatoren

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT400496B (de) * 1987-06-25 1996-01-25 Elin Oltc Gmbh Stufenschalter Thyristor-lastumschalter
US5006784A (en) * 1987-06-25 1991-04-09 Elin-Union Thyristor on-load change-over switch
AT399963B (de) * 1987-12-18 1995-08-25 Elin Oltc Gmbh Stufenschalter Überschalt-widerstand i
DE3943514C2 (fr) * 1988-06-15 1992-02-06 Kabushiki Kaisha Toshiba, Kawasaki, Kanagawa, Jp
EP0424632A1 (fr) * 1989-10-27 1991-05-02 Maschinenfabrik Reinhausen Gmbh Dispositif et procédé pour la commutation de réglage en charge destiné aux commutateurs en charge de graduateurs de réglage en charge
US8367951B2 (en) * 2006-08-23 2013-02-05 Abb Technology Ltd. Vacuum based diverter switch for tap changer
US20110031220A1 (en) * 2006-08-23 2011-02-10 Abb Technology Ltd. Vacuum based diverter switch for tap changer
EP2509089A1 (fr) 2011-04-04 2012-10-10 ABB Technology Ltd Changeur de prise
WO2012136426A1 (fr) 2011-04-04 2012-10-11 Abb Technology Ltd Changeur de prises en charge
EP2530693A1 (fr) 2011-05-31 2012-12-05 ABB Technology Ltd Changeur de prise
WO2012163907A1 (fr) 2011-05-31 2012-12-06 Abb Technology Ltd Changeur de prise
EP2535910A1 (fr) 2011-06-15 2012-12-19 ABB Research Ltd. Accumulateur d'énergie pour actionner un dispositif de commutation, changeur de prise et transformateur
EP2535911A1 (fr) 2011-06-15 2012-12-19 ABB Research Ltd. Boîte de vitesses pour changeur de prise, changeur de prise et transformateur
WO2012171791A1 (fr) 2011-06-15 2012-12-20 Abb Research Ltd Multiplicateur de vitesse pour changeur de prise, changeur de prise et transformateur
CN102832075A (zh) * 2011-06-15 2012-12-19 上海华明电力设备集团有限公司 真空有载分接开关双真空管过渡电路
US9127751B2 (en) 2011-06-15 2015-09-08 Abb Research Ltd. Gearbox for a tap changer, a tap changer and a transformer
DE102013208419A1 (de) * 2013-05-07 2014-11-13 Schneider Electric Industries Sas Verfahren und Vorrichtung zum reversiblen Schalten von Wechselströmen bei Mittel- und Hochspannung
EP3731250A1 (fr) 2019-04-23 2020-10-28 ABB Power Grids Switzerland AG Unité de ressort et commutateur de déviateur
WO2020216461A1 (fr) 2019-04-23 2020-10-29 Abb Schweiz Ag Unité de ressort et commutateur
US11508535B2 (en) 2019-04-23 2022-11-22 Hitachi Energy Switzerland Ag Spring unit and a diverter switch
JP2022536704A (ja) * 2019-06-12 2022-08-18 マシイネンフアブリーク・ラインハウゼン・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング 負荷時タップ切換器
WO2022096124A1 (fr) 2020-11-06 2022-05-12 Hitachi Energy Switzerland Ag Changeur de prise et ensemble transformateur comprenant un changeur de prise

Also Published As

Publication number Publication date
JPS59125418A (ja) 1984-07-19

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): BE DE GB

17P Request for examination filed

Effective date: 19841212

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Effective date: 19860501

RIN1 Information on inventor provided before grant (corrected)

Inventor name: MIHARA, YUJI

Inventor name: FURUKAWA, KAZUYA