GB1299197A - High voltage d.c. systems including transformers or reactors - Google Patents
High voltage d.c. systems including transformers or reactorsInfo
- 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
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.
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)
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)
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)
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 |
-
1968
- 1968-12-23 DE DE19681816492 patent/DE1816492A1/en active Pending
-
1969
- 1969-12-09 CH CH1826569A patent/CH501301A/en not_active IP Right Cessation
- 1969-12-18 FR FR6943995A patent/FR2026886B1/fr not_active Expired
- 1969-12-22 GB GB62385/69A patent/GB1299197A/en not_active Expired
Cited By (1)
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 |