EP0185530B1 - Changeur de prises en charge triphasé - Google Patents

Changeur de prises en charge triphasé Download PDF

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Publication number
EP0185530B1
EP0185530B1 EP85309119A EP85309119A EP0185530B1 EP 0185530 B1 EP0185530 B1 EP 0185530B1 EP 85309119 A EP85309119 A EP 85309119A EP 85309119 A EP85309119 A EP 85309119A EP 0185530 B1 EP0185530 B1 EP 0185530B1
Authority
EP
European Patent Office
Prior art keywords
phase
change
tap changer
load tap
tap
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.)
Expired - Lifetime
Application number
EP85309119A
Other languages
German (de)
English (en)
Other versions
EP0185530A2 (fr
EP0185530A3 (en
Inventor
Kazuo Itami Works Mitsubishi Denki K.K. Yoshida
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
Priority to AT85309119T priority Critical patent/ATE73260T1/de
Publication of EP0185530A2 publication Critical patent/EP0185530A2/fr
Publication of EP0185530A3 publication Critical patent/EP0185530A3/en
Application granted granted Critical
Publication of EP0185530B1 publication Critical patent/EP0185530B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • This invention relates to a three-phase on-load tap changer principally featuring the combination of change-over switches and tap selectors. More particularly, it relates to an on-load tap changer capable Of preventing the occurrence of the worst situation, in which current is interrupted by only a tap selector, even in case of any abnormality.
  • an on-load tap changer for three phases there has been known one which is furnished with a change-over switch and a tap selector for each phase. It is desirable for the on-load tap changer of this type that the change-over switches and the tap selectors corresponding to the three phases are received in a single LTC (on-load tap changer unit).
  • LTC on-load tap changer unit
  • the on-load tap changer when the on-load tap changer is to be applied to the star connection, it requires the insulation between the phases, and hence, it becomes very large in size for a high voltage class.
  • the change-over switches and the tap selectors corresponding to the three phases are arrayed coaxially and with predetermined interphase insulation distances set in the axial direction, the full length of the LTC becomes conspicuously great to spoil practicability.
  • Fig. 1 is a schematic arrangement diagram of such a prior-art device.
  • numeral 1 designates a first LTC, which includes therein change-over switches D1 and D2 for first and second phases respectively and a tap selector S1 for the first phase
  • numeral 2 designates a second LTC, which includes therein a change-over switch D3 for a third phase and tap selectors S2 and S3 for the second and third phases respectively.
  • the respectively corresponding change-over switches and tap selectors are electrically connected by connection leads L1, L2 and L3.
  • Symbol P1 denotes a first coupling shaft by which the first LTC 1 and the second LTC 2 are directly coupled
  • symbol P2 denotes a second coupling shaft by which the second LTC 2 and a driver 3 are coupled.
  • Patent Specification GB-A-1 496 184 describes tap changing equipment for three-phase regulating transformers, which makes use of a first sub-assembly housing change-over switches of first and second phases and a tap selector switch of the first phase, and a second sub-assembly housing a change-over switch of a third phase and tap selector switches of the second and third phases.
  • the switches of the first sub-assembly are arranged coaxially with a first drive shaft; and the switches of the second sub-assembly are arranged co-axially with a second drive shaft. Both of the drive shafts are connected directly to a common drive mechanism.
  • This invention has been made in order to solve the problem of the prior-art device described above, and has for its object to provide an on-load tap changer wherein the operation of only a tap selector without its corresponding change-over switch is avoided even when the abnormal situation in which a coupling shaft coupling a plurality of LTC's comes off has arisen.
  • the tap changer including a tap selector which might be dangerous if the drive continues under this state is separated from a driver, whereby the occurrence of a serious accident is prevented.
  • Fig. 2 is a schematic arrangement diagram of an on-load tap changer which is an embodiment of this invention.
  • a first LTC 1 includes therein change-over switches D1 and D2 for first and second phases respectively and a tap selector S1 for the first phase
  • a second LTC 2 includes therein a change-over switch D3 for a third phase D3 for a third phase and tap selectors S2 and S3 for the second and third phases respectively.
  • the respectively corresponding change-over switches and tap selectors are electrically connected by connection leads L1, L2 and L3.
  • the first LTC 1 and the second LTC 2 are interconnected through a first coupling shaft P1, and a driver 3 is connected to the first LTC 1 through a second coupling shaft P2.
  • an LTC on a side to which a driver is coupled is put into a specified arrangement, whereby an on-load tap changer whose reliability is greatly enhanced can be realized without requiring any new additional components.

Landscapes

  • Processing Of Color Television Signals (AREA)
  • Liquid Developers In Electrophotography (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Control Of Electrical Variables (AREA)
  • Control Of Combustion (AREA)
  • Liquid Crystal Substances (AREA)
  • Developing Agents For Electrophotography (AREA)

Claims (1)

  1. Un changeur de prises en charge comprenant:
       un premier ensemble changeur de prises en charge (LTC 1) lequel y reçoit un dispositif commutateur (D1) pour une première phase, un dispositif commutateur (D2) pour une seconde phase et un sélecteur de prises (S1) pour la première phase de manière à les actionner,
       un second ensemble changeur de prises en charge (LTC 2) lequel y reçoit un dispositif commutateur (D3) pour une troisième phase, un sélecteur de prises (S2) pour la seconde phase et un sélecteur de prises (S3) pour la troisième phase de manière à les actionner,
       des branchements (L1-L3) dont chacun raccorde ledit dispositif commutateur et ledit sélecteur de prises de la même phase,
       un dispositif de commande (3) qui commande lesdits premier et second ensembles changeurs de prises;
       un premier arbre d'accouplement (P1), lequel couple lesdits premier et second ensembles changeurs de prises en charge, caractérisé en ce que ledit changeur de prises en charge triphasé comprend également:
       un second arbre d'accouplement (P2) lequel couple ladite commande et ledit premier ensemble changeur de prises en charge.
EP85309119A 1984-12-13 1985-12-13 Changeur de prises en charge triphasé Expired - Lifetime EP0185530B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85309119T ATE73260T1 (de) 1984-12-13 1985-12-13 Dreiphasiger lastumsteller.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP59261895A JPS61140122A (ja) 1984-12-13 1984-12-13 負荷時タツプ切換装置
JP261895/84 1984-12-13

Publications (3)

Publication Number Publication Date
EP0185530A2 EP0185530A2 (fr) 1986-06-25
EP0185530A3 EP0185530A3 (en) 1988-01-07
EP0185530B1 true EP0185530B1 (fr) 1992-03-04

Family

ID=17368249

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85309119A Expired - Lifetime EP0185530B1 (fr) 1984-12-13 1985-12-13 Changeur de prises en charge triphasé

Country Status (4)

Country Link
EP (1) EP0185530B1 (fr)
JP (1) JPS61140122A (fr)
AT (1) ATE73260T1 (fr)
DE (1) DE3585506D1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0258206A (ja) * 1988-08-23 1990-02-27 Mitsubishi Electric Corp 負荷時タップ切換装置
UA44616C2 (uk) * 2001-06-13 2004-11-15 Відкрите Акціонерне Товариство "Український Науково-Дослідний, Проектно-Конструкторський Та Технологічний Інститут Трансформаторобудування" - Ват "Віт" Трифазний перемикач відгалужень обмоток трансформатора під навантаженням
DE102014012266B4 (de) * 2014-08-22 2024-10-02 Maschinenfabrik Reinhausen Gmbh Schaltanordnung mit zwei Laststufenschaltern, elektrische Anlage mit einer derartigen Schaltanordnung sowie deren Verwendung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT341045B (de) * 1974-11-22 1978-01-10 Reinhausen Maschf Scheubeck Stufenschalter fur mehrphasige stufentransformatoren in dreieckschaltung oder in sparschaltung
JPS5595308A (en) * 1979-01-12 1980-07-19 Fuji Electric Co Ltd On-load tap changer
AT375488B (de) * 1979-09-11 1984-08-10 Elin Union Ag Stufenschalteranordnung fuer dreiphasige stufentransformatoren in dreieckschaltung
NL8202686A (nl) * 1982-07-05 1984-02-01 Philips Nv Werkwijze ter vervaardiging van een veldeffektinrichting met geisoleerde stuurelektrode, en inrichting vervaardigd volgens de werkwijze.

Also Published As

Publication number Publication date
ATE73260T1 (de) 1992-03-15
EP0185530A2 (fr) 1986-06-25
EP0185530A3 (en) 1988-01-07
DE3585506D1 (de) 1992-04-09
JPS61140122A (ja) 1986-06-27

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