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EP0993010A3 - Tap changer for electric transformers - Google Patents

Tap changer for electric transformers Download PDF

Info

Publication number
EP0993010A3
EP0993010A3 EP99116761A EP99116761A EP0993010A3 EP 0993010 A3 EP0993010 A3 EP 0993010A3 EP 99116761 A EP99116761 A EP 99116761A EP 99116761 A EP99116761 A EP 99116761A EP 0993010 A3 EP0993010 A3 EP 0993010A3
Authority
EP
European Patent Office
Prior art keywords
rod
contacts
shaped
movable contacts
base
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
EP99116761A
Other languages
German (de)
French (fr)
Other versions
EP0993010B1 (en
EP0993010A2 (en
Inventor
Silvio Dal Lago
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.)
Comem SpA
Original Assignee
Comem SpA
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 Comem SpA filed Critical Comem SpA
Publication of EP0993010A2 publication Critical patent/EP0993010A2/en
Publication of EP0993010A3 publication Critical patent/EP0993010A3/en
Application granted granted Critical
Publication of EP0993010B1 publication Critical patent/EP0993010B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/0005—Tap change devices
    • H01H9/0016—Contact arrangements for tap changers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/0005—Tap change devices
    • H01H9/0027—Operating mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H01H9/28—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member
    • 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
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H01H9/28—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member
    • H01H9/281—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member making use of a padlock

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Push-Button Switches (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Keying Circuit Devices (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Slide Switches (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

A tap changer (10) particularly for electric transformers, comprising a rod-like body (11) which rigidly supports fixed pin-like contacts (13) arranged at right angles and in series along the rod-like body, the rod-like body constituting a sliding guide for a sliding block (12b) associated with actuation means which can be actuated by the user, the sliding block having at least one support (14) for a corresponding pair of skid-like movable contacts which are slideable on the fixed contacts (13) in mutually opposite positions and are adapted to interfere with two of the fixed contacts (13) alternately and in succession; the at least one support (14) comprises a base (16) from which two mutually parallel walls (17) for sliding on the rod-like body protrude, the base being shaped so as to form seats for the two movable contacts, each one of the movable contacts being shaped so as to form at least one anchoring tab which is shaped complementarily to a corresponding guide for retaining the base, a spring (23) being provided which is shaped so as to have two pairs of arms which force the movable contacts (15) toward each other.
EP99116761A 1998-10-06 1999-08-30 Tap changer for electric transformers Expired - Lifetime EP0993010B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPD980094U 1998-10-06
IT1998PD000094U IT245092Y1 (en) 1998-10-06 1998-10-06 SWITCH STRUCTURE FOR ELECTRIC TRANSFORMERS.

Publications (3)

Publication Number Publication Date
EP0993010A2 EP0993010A2 (en) 2000-04-12
EP0993010A3 true EP0993010A3 (en) 2001-09-05
EP0993010B1 EP0993010B1 (en) 2006-05-10

Family

ID=11392174

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99116761A Expired - Lifetime EP0993010B1 (en) 1998-10-06 1999-08-30 Tap changer for electric transformers

Country Status (8)

Country Link
EP (1) EP0993010B1 (en)
AT (1) ATE326058T1 (en)
CY (1) CY1105121T1 (en)
DE (1) DE69931229T2 (en)
DK (1) DK0993010T3 (en)
ES (1) ES2264817T3 (en)
IT (1) IT245092Y1 (en)
PT (1) PT993010E (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102789911B (en) * 2012-08-20 2015-07-29 武汉泰普变压器开关有限公司 Without excitation bar-type tapping switch
TR201908022T4 (en) * 2014-10-10 2019-06-21 Elettromaule Component S R L A tap changer for oil-type electrical transformers.
BR102015013951A2 (en) * 2015-06-12 2016-12-27 Riotrafo Ltda longitudinal switch, for position change and locking system in electrical contact

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1562235A (en) * 1968-02-22 1969-04-04
FR2142219A5 (en) * 1971-06-17 1973-01-26 Gerardin Maurice
FR2401498A1 (en) * 1977-08-24 1979-03-23 Reinhausen Kg Maschf TAP CHANGER TO MODIFY THE TRANSFORMATION RATIO OF A TRANSFORMER

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1562235A (en) * 1968-02-22 1969-04-04
FR2142219A5 (en) * 1971-06-17 1973-01-26 Gerardin Maurice
FR2401498A1 (en) * 1977-08-24 1979-03-23 Reinhausen Kg Maschf TAP CHANGER TO MODIFY THE TRANSFORMATION RATIO OF A TRANSFORMER

Also Published As

Publication number Publication date
DE69931229D1 (en) 2006-06-14
EP0993010B1 (en) 2006-05-10
DE69931229T2 (en) 2007-03-01
DK0993010T3 (en) 2006-09-18
IT245092Y1 (en) 2002-03-19
EP0993010A2 (en) 2000-04-12
PT993010E (en) 2006-09-29
ATE326058T1 (en) 2006-06-15
ITPD980094U1 (en) 2000-04-06
CY1105121T1 (en) 2009-11-04
ES2264817T3 (en) 2007-01-16

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