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SE9703563L - Power transformer / reactor and method for fitting a high voltage cable - Google Patents

Power transformer / reactor and method for fitting a high voltage cable

Info

Publication number
SE9703563L
SE9703563L SE9703563A SE9703563A SE9703563L SE 9703563 L SE9703563 L SE 9703563L SE 9703563 A SE9703563 A SE 9703563A SE 9703563 A SE9703563 A SE 9703563A SE 9703563 L SE9703563 L SE 9703563L
Authority
SE
Sweden
Prior art keywords
semiconducting layer
winding
earthed
reactor
high voltage
Prior art date
Application number
SE9703563A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE9703563D0 (en
SE511361C2 (en
Inventor
Li Ming
Mats Leijon
Rongsheng Liu
Albert Jaksts
Original Assignee
Asea Brown Boveri
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 Asea Brown Boveri filed Critical Asea Brown Boveri
Priority to SE9703563A priority Critical patent/SE511361C2/en
Publication of SE9703563D0 publication Critical patent/SE9703563D0/en
Priority to AU93714/98A priority patent/AU9371498A/en
Priority to PCT/SE1998/001749 priority patent/WO1999017312A2/en
Priority to JP2000514287A priority patent/JP2001518698A/en
Priority to DE19882712T priority patent/DE19882712T1/en
Publication of SE9703563L publication Critical patent/SE9703563L/en
Publication of SE511361C2 publication Critical patent/SE511361C2/en

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
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/288—Shielding

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Insulated Conductors (AREA)
  • Regulation Of General Use Transformers (AREA)

Abstract

The present invention refers to a power transformer/reactor comprising at least one winding (1, 2, 3). The winding/windings (1, 2, 3) are manufactured with a high voltage cable (10), comprising an electric conductor, around the conductor there being arranged a first semiconducting layer (14), around the first semiconducting layer (14) there being arranged a first insulating layer (16) and around the first insulating layer (16) there being arranged a second semiconducting layer (18). The second semiconducting layer (18) is directly earthed (32, 34) at n points of each winding (1, 2, 3) wherein n is an integral number and n>/=2, and whereby two (32, 34) of said n directly earthed points are arranged at or in the vicinity of both ends of each winding (1, 2, 3) and the electric contact is interrupted (20) 2(n-1) number of times between both ends in the semiconducting layer (18). At each said interruption (20) there is arranged a means (24, 26) comprising a second insulating layer (24) and third semiconducting layer (26) in order to reduce the amplification of electric field strength at said interruption (20). The second semiconducting layer (18) of different phases (1, 2, 3) at each said interruption (20) is earthed in a cross-connected manner (42, 44). Besides, at least one point (36, 38) between both ends is indirectly earthed.
SE9703563A 1997-09-30 1997-09-30 Power transformer / reactor and method for fitting a high voltage cable SE511361C2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE9703563A SE511361C2 (en) 1997-09-30 1997-09-30 Power transformer / reactor and method for fitting a high voltage cable
AU93714/98A AU9371498A (en) 1997-09-30 1998-09-29 Power transformer/reactor and a method of adapting a high voltage cable
PCT/SE1998/001749 WO1999017312A2 (en) 1997-09-30 1998-09-29 Power transformer/reactor and a method of adapting a high voltage cable
JP2000514287A JP2001518698A (en) 1997-09-30 1998-09-29 How to fit power transformers / reactors with high voltage cables
DE19882712T DE19882712T1 (en) 1997-09-30 1998-09-29 Power transformer or reactor and a method of adapting a high voltage cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9703563A SE511361C2 (en) 1997-09-30 1997-09-30 Power transformer / reactor and method for fitting a high voltage cable

Publications (3)

Publication Number Publication Date
SE9703563D0 SE9703563D0 (en) 1997-09-30
SE9703563L true SE9703563L (en) 1999-03-31
SE511361C2 SE511361C2 (en) 1999-09-20

Family

ID=20408459

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9703563A SE511361C2 (en) 1997-09-30 1997-09-30 Power transformer / reactor and method for fitting a high voltage cable

Country Status (5)

Country Link
JP (1) JP2001518698A (en)
AU (1) AU9371498A (en)
DE (1) DE19882712T1 (en)
SE (1) SE511361C2 (en)
WO (1) WO1999017312A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6359365B1 (en) * 2000-08-04 2002-03-19 American Superconductor Corporation Superconducting synchronous machine field winding protection
EP1280259A1 (en) * 2001-07-23 2003-01-29 ALSTOM (Switzerland) Ltd High-voltage Generator

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4109098A (en) * 1974-01-31 1978-08-22 Telefonaktiebolaget L M Ericsson High voltage cable
US5036165A (en) * 1984-08-23 1991-07-30 General Electric Co. Semi-conducting layer for insulated electrical conductors

Also Published As

Publication number Publication date
AU9371498A (en) 1999-04-23
DE19882712T1 (en) 2000-09-07
WO1999017312A2 (en) 1999-04-08
JP2001518698A (en) 2001-10-16
WO1999017312A3 (en) 1999-07-01
SE9703563D0 (en) 1997-09-30
SE511361C2 (en) 1999-09-20

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Legal Events

Date Code Title Description
NUG Patent has lapsed