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 EP19990201458 EP99201458A EP0957496A3 EP 0957496 A3 EP0957496 A3 EP 0957496A3 EP 19990201458 EP19990201458 EP 19990201458 EP 99201458 A EP99201458 A EP 99201458A EP 0957496 A3 EP0957496 A3 EP 0957496A3
Authority
EP
Grant status
Application
Patent type
Prior art keywords
dielectric
fluid
power
arc
load 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.)
Withdrawn
Application number
EP19990201458
Other languages
German (de)
French (fr)
Other versions
EP0957496A2 (en )
Inventor
Dino Paleari
Silvio Stangherlin
Silvia Volponi
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 S P A
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

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/08Cooling; Ventilating
    • H01F27/10Liquid cooling
    • H01F27/12Oil cooling
    • H01F27/14Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/02Casings
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/08Cooling; Ventilating
    • H01F27/10Liquid cooling
    • H01F27/12Oil cooling
    • H01F27/125Cooling by synthetic insulating and incombustible liquid
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/40Structural association with built-in electric component, e.g. fuse
    • H01F27/402Association of measuring or protective means
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/40Structural association with built-in electric component, e.g. fuse
    • H01F27/402Association of measuring or protective means
    • H01F2027/406Temperature sensor or protection
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/0005Tap change devices
    • H01H2009/0055Oil 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.
EP19990201458 1998-05-11 1999-05-11 Power and/or distribution transformer equipped with on-load tap-changer Withdrawn EP0957496A3 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ITMI981021 1998-05-11
IT1299218B1 IT1299218B1 (en) 1998-05-11 1998-05-11 Power transformer and / or distribution transformer provided with on-load tap-changer

Publications (2)

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

Family

ID=11379996

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990201458 Withdrawn EP0957496A3 (en) 1998-05-11 1999-05-11 Power and/or distribution transformer equipped with on-load tap-changer

Country Status (1)

Country Link
EP (1) EP0957496A3 (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
EP1113549A1 (en) * 1999-12-30 2001-07-04 ABB T&D Technologies Ltd. Electric substation
EP1113548A1 (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
US7847189B2 (en) 2005-07-01 2010-12-07 Siemens Aktiengesellschaft Electrical Component
EP1905053A1 (en) * 2005-07-17 2008-04-02 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
US7950940B2 (en) 2008-02-25 2011-05-31 Cooper Technologies Company Separable connector with reduced surface contact
US8056226B2 (en) 2008-02-25 2011-11-15 Cooper Technologies Company Method of manufacturing a dual interface separable insulated connector with overmolded faraday cage
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 prevention against 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 Type
EP0957496A2 (en) 1999-11-17 application

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