GB1299197A - High voltage d.c. systems including transformers or reactors - Google Patents

High voltage d.c. systems including transformers or reactors

Info

Publication number
GB1299197A
GB1299197A GB62385/69A GB6238569A GB1299197A GB 1299197 A GB1299197 A GB 1299197A GB 62385/69 A GB62385/69 A GB 62385/69A GB 6238569 A GB6238569 A GB 6238569A GB 1299197 A GB1299197 A GB 1299197A
Authority
GB
United Kingdom
Prior art keywords
winding
electrode
insulation
control
oil
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
Application number
GB62385/69A
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of GB1299197A publication Critical patent/GB1299197A/en
Expired 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
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • 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
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • H01F27/363—Electric or magnetic shields or screens made of electrically conductive material
    • 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
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulating Of Coils (AREA)

Abstract

1299197 Transformers; inductors LICENTIA PATENT-VERWALTUNGS-GmbH 22 Dec 1969 [23 Dec 1968] 62385/69 Heading H1T An oil-cooled transformer or reactor for use in H.V.D.C. systems has an at least partially bare control electride 5 which is at substantially the same D.C. potential as the adjacent end of a winding 3 and is positioned where oil enters or leaves the winding to ensure that an adequate proportion of the direct voltage on the winding is dropped across the oil and thus to relieve the solid winding insulation. The control electrode 5 may be situated in a zone of low electrical field strength between the winding 2 and a shielding ring 4, or may form part of a cylindrical, capacitive control shield (Fig. 4, not shown). One or more control electrodes 5 may be provided between winding discs (Fig. 7, not shown) or at the ends of winding layers as in Fig. 8. In the latter case, the electrode 5 is formed of high resistance conducting paper and contributes to the A.C. insulation while taking on a D.C. potential which is determined by solid insulation 7 and the area of the electrode 5. The conducting paper may be circumferentially slit to increase the axial resistance of the electrode.
GB62385/69A 1968-12-23 1969-12-22 High voltage d.c. systems including transformers or reactors Expired GB1299197A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681816492 DE1816492A1 (en) 1968-12-23 1968-12-23 Winding for transformers, inductors and similar devices with high DC voltage potential

Publications (1)

Publication Number Publication Date
GB1299197A true GB1299197A (en) 1972-12-06

Family

ID=5717151

Family Applications (1)

Application Number Title Priority Date Filing Date
GB62385/69A Expired GB1299197A (en) 1968-12-23 1969-12-22 High voltage d.c. systems including transformers or reactors

Country Status (4)

Country Link
CH (1) CH501301A (en)
DE (1) DE1816492A1 (en)
FR (1) FR2026886B1 (en)
GB (1) GB1299197A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104485209A (en) * 2014-12-08 2015-04-01 吴江变压器有限公司 Insulation angle ring and manufacturing method thereof for transformer winding

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE73572T1 (en) * 1987-04-09 1992-03-15 Siemens Ag HIGH VOLTAGE INSULATION ARRANGEMENT FOR TRANSFORMERS AND CHOKE COILS, PARTICULARLY FOR HIGH VOLTAGE DIRECT CURRENT (HGUE) TRANSMISSION.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR767604A (en) * 1934-07-20
GB416541A (en) * 1932-12-07 1934-09-17 British Thomson Houston Co Ltd Improvements in and relating to electric transformers
DE968964C (en) * 1938-06-29 1958-04-10 Bbc Brown Boveri & Cie High voltage transformer
DE932851C (en) * 1948-10-02 1955-09-12 Siemens Ag Device for protecting control windings of transformers
FR1192398A (en) * 1956-12-18 1959-10-26 Smit & Willem & Co Nv High voltage transformer with screens for potential regulation
FR1401308A (en) * 1964-04-20 1965-06-04 Materiel Electrique S W Le Insulation improvements for transformers and reactance coils

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104485209A (en) * 2014-12-08 2015-04-01 吴江变压器有限公司 Insulation angle ring and manufacturing method thereof for transformer winding

Also Published As

Publication number Publication date
FR2026886B1 (en) 1974-02-01
DE1816492A1 (en) 1970-08-06
DE1816492B2 (en) 1971-01-28
FR2026886A1 (en) 1970-09-25
CH501301A (en) 1970-12-31

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees