EP0957496A3 - Power and/or distribution transformer equipped with on-load tap-changer - Google Patents

Power and/or distribution transformer equipped with on-load tap-changer Download PDF

Info

Publication number
EP0957496A3
EP0957496A3 EP99201458A EP99201458A EP0957496A3 EP 0957496 A3 EP0957496 A3 EP 0957496A3 EP 99201458 A EP99201458 A EP 99201458A EP 99201458 A EP99201458 A EP 99201458A EP 0957496 A3 EP0957496 A3 EP 0957496A3
Authority
EP
European Patent Office
Prior art keywords
dielectric
fluid
power
load tap
distribution transformer
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Withdrawn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
EP99201458A
Other languages
German (de)
French (fr)
Other versions
EP0957496A2 (en
Inventor
Silvia Volponi
Silvio Stangherlin
Dino Paleari
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.)
ABB Trasformatori SpA
Original Assignee
ABB Trasformatori 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 ABB Trasformatori SpA filed Critical ABB Trasformatori SpA
Publication of EP0957496A2 publication Critical patent/EP0957496A2/en
Publication of EP0957496A3 publication Critical patent/EP0957496A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/08—Cooling; Ventilating
    • H01F27/10—Liquid cooling
    • H01F27/12—Oil cooling
    • H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/02—Casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/08—Cooling; Ventilating
    • H01F27/10—Liquid cooling
    • H01F27/12—Oil cooling
    • H01F27/125—Cooling by synthetic insulating and incombustible liquid
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/40—Structural association with built-in electric component, e.g. fuse
    • H01F27/402—Association of measuring or protective means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/40—Structural association with built-in electric component, e.g. fuse
    • H01F27/402—Association of measuring or protective means
    • H01F2027/406—Temperature sensor or protection
    • 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
    • H01H2009/0055—Oil filters for tap change devices

Abstract

A power and/or distribution transformer comprising:
  • a tank provided with a magnetic core, high- and low-voltage windings, adjustment windings. insulating partitions made of solid material which are interposed between the high- and low-voltage windings and a dielectric and cooling fluid;
  • an on-load tap changer which comprises:
  • at least one selector which is immersed in a lubricating fluid;
  • at least one diverter switch which comprises arc contacts and a dielectric arc-quenching fluid;
characterized in that the dielectric and cooling fluid of the transformer and/or the dielectric and arc-quenching fluid and/or the lubricating fluid of the selector are liquid perfluoropolyethers, and in that the tank and the diverter switch are each provided with a filter for reducing chemically reactive gas species generated by the decomposition of the fluids.
EP99201458A 1998-05-11 1999-05-11 Power and/or distribution transformer equipped with on-load tap-changer Withdrawn EP0957496A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI981021 IT1299218B1 (en) 1998-05-11 1998-05-11 POWER AND / OR DISTRIBUTION TRANSFORMER EQUIPPED WITH SWITCH UNDER LOAD
ITMI981021 1998-05-11

Publications (2)

Publication Number Publication Date
EP0957496A2 EP0957496A2 (en) 1999-11-17
EP0957496A3 true EP0957496A3 (en) 2000-02-23

Family

ID=11379996

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99201458A Withdrawn EP0957496A3 (en) 1998-05-11 1999-05-11 Power and/or distribution transformer equipped with on-load tap-changer

Country Status (2)

Country Link
EP (1) EP0957496A3 (en)
IT (1) IT1299218B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7958631B2 (en) 2008-04-11 2011-06-14 Cooper Technologies Company Method of using an extender for a separable insulated connector

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1113548A1 (en) * 1999-12-30 2001-07-04 ABB T&D Technologies Ltd. Electric substation
EP1113549A1 (en) * 1999-12-30 2001-07-04 ABB T&D Technologies Ltd. Electric substation
US7842122B2 (en) * 2003-10-31 2010-11-30 Waukesha Electric Systems Incorporated Gas remover apparatus and method
WO2007003595A1 (en) * 2005-07-01 2007-01-11 Siemens Aktiengesellschaft Electric component
WO2007009961A1 (en) * 2005-07-17 2007-01-25 Siemens Aktiengesellschaft Hermetically sealed electrical apparatus
US7572133B2 (en) 2005-11-14 2009-08-11 Cooper Technologies Company Separable loadbreak connector and system
US20070295692A1 (en) * 2006-06-22 2007-12-27 Frank John Muench Fault tolerant high voltage switching elements and electrical components
US7854620B2 (en) 2007-02-20 2010-12-21 Cooper Technologies Company Shield housing for a separable connector
US7950939B2 (en) 2007-02-22 2011-05-31 Cooper Technologies Company Medium voltage separable insulated energized break connector
US7666012B2 (en) 2007-03-20 2010-02-23 Cooper Technologies Company Separable loadbreak connector for making or breaking an energized connection in a power distribution network
US7661979B2 (en) 2007-06-01 2010-02-16 Cooper Technologies Company Jacket sleeve with grippable tabs for a cable connector
US7695291B2 (en) 2007-10-31 2010-04-13 Cooper Technologies Company Fully insulated fuse test and ground device
US7670162B2 (en) 2008-02-25 2010-03-02 Cooper Technologies Company Separable connector with interface undercut
US8056226B2 (en) 2008-02-25 2011-11-15 Cooper Technologies Company Method of manufacturing a dual interface separable insulated connector with overmolded faraday cage
US7950940B2 (en) 2008-02-25 2011-05-31 Cooper Technologies Company Separable connector with reduced surface contact
US7905735B2 (en) 2008-02-25 2011-03-15 Cooper Technologies Company Push-then-pull operation of a separable connector system
US8109776B2 (en) 2008-02-27 2012-02-07 Cooper Technologies Company Two-material separable insulated connector
US7811113B2 (en) 2008-03-12 2010-10-12 Cooper Technologies Company Electrical connector with fault closure lockout
US7878849B2 (en) 2008-04-11 2011-02-01 Cooper Technologies Company Extender for a separable insulated connector
FR2971357B1 (en) 2011-02-08 2013-02-15 Philippe Magnier Llc DEVICE FOR PREVENTING THE EXPLOSION OF AN ELECTRICAL TRANSFORMER PROVIDED WITH A LIQUID INDICATOR
DE102013100266A1 (en) * 2013-01-11 2014-07-17 Maschinenfabrik Reinhausen Gmbh OLTC
KR101768849B1 (en) * 2016-04-05 2017-08-17 엘에스산전 주식회사 Oil type phase shift transformer in medium voltage inverter system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2554514A1 (en) * 1975-12-04 1977-06-08 Transformatoren Union Ag Very large transformer with divided housing - has winding and core for each phase divided into two and housed in two vessels
US4437082A (en) * 1982-07-12 1984-03-13 Westinghouse Electric Corp. Apparatus for continually upgrading transformer dielectric liquid
DE4215029A1 (en) * 1991-05-09 1992-11-12 Fuji Electric Co Ltd Non-combustible insulating fluid used as induction appts. coolant - contains fluorocarbon liq. as insulator, and emulsifier

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2554514A1 (en) * 1975-12-04 1977-06-08 Transformatoren Union Ag Very large transformer with divided housing - has winding and core for each phase divided into two and housed in two vessels
US4437082A (en) * 1982-07-12 1984-03-13 Westinghouse Electric Corp. Apparatus for continually upgrading transformer dielectric liquid
DE4215029A1 (en) * 1991-05-09 1992-11-12 Fuji Electric Co Ltd Non-combustible insulating fluid used as induction appts. coolant - contains fluorocarbon liq. as insulator, and emulsifier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7958631B2 (en) 2008-04-11 2011-06-14 Cooper Technologies Company Method of using an extender for a separable insulated connector

Also Published As

Publication number Publication date
ITMI981021A1 (en) 1999-11-11
IT1299218B1 (en) 2000-02-29
EP0957496A2 (en) 1999-11-17

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