GB693448A - Improvements in or relating to electric power transformers - Google Patents
Improvements in or relating to electric power transformersInfo
- Publication number
- GB693448A GB693448A GB2473350A GB2473350A GB693448A GB 693448 A GB693448 A GB 693448A GB 2473350 A GB2473350 A GB 2473350A GB 2473350 A GB2473350 A GB 2473350A GB 693448 A GB693448 A GB 693448A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oil
- tank
- piping
- atmosphere
- inert gas
- 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
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
693,448. Transformers. BRITISH ELECTRIC TRANSFORMER CO., Ltd. Oct. 9, 1951 [Oct. 10, 1950], No. 24733/50. Class 38 (ii). An oil-insulated transformer comprises an oil-tight transformer tank 1 and an auxiliary tank 4 so connected by piping 2, 3 that a continuous body of oil fills the tank 1 and partially fills the auxiliary tank 4, together with a sealing device, such as a simulated " U " tube 7, 8, 9, for maintaining a layer of inert gas between any oil in the auxiliary tank 4 and the atmosphere, the device being vented to the atmosphere and serving to prevent any contact between the inert gas and the atmosphere. The " U " tube comprises two vessels 7. 9 joined near their lower levels by piping 8, the inert gas, such as nitrogen, being located between the level of the liquid in the vessel 7 and the level of the oil in the tank 4. The piping 2, 3 is so dimensioned that convection currents of oil therethrough do not occur, thus the nitrogen does not become heated. An inherent factor of the design is that the volume of liquid in both the vessels 7, 9 and the tank 4 must be at least as great as the volume increase of oil in the tank 1 during operation. A gasoperated relay 5 may be provided.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2473350A GB693448A (en) | 1950-10-10 | 1950-10-10 | Improvements in or relating to electric power transformers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2473350A GB693448A (en) | 1950-10-10 | 1950-10-10 | Improvements in or relating to electric power transformers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB693448A true GB693448A (en) | 1953-07-01 |
Family
ID=10216399
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2473350A Expired GB693448A (en) | 1950-10-10 | 1950-10-10 | Improvements in or relating to electric power transformers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB693448A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2003200081B1 (en) * | 2003-01-09 | 2004-04-29 | John Owen Williams | Containment of high voltage power transformer internal explosions |
WO2007057916A3 (en) * | 2005-11-16 | 2007-07-12 | Ctr Mfg Ind Ltd | Method and device for prevention and protection of electrical transformer against explosion and fire |
EP2290663A1 (en) * | 2009-08-29 | 2011-03-02 | ABB Technology AG | Oil transformer |
EP3404678A1 (en) * | 2017-05-17 | 2018-11-21 | General Electric Technology GmbH | High voltage assembly and method to operate the high voltage assembly |
-
1950
- 1950-10-10 GB GB2473350A patent/GB693448A/en not_active Expired
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2003200081B1 (en) * | 2003-01-09 | 2004-04-29 | John Owen Williams | Containment of high voltage power transformer internal explosions |
WO2007057916A3 (en) * | 2005-11-16 | 2007-07-12 | Ctr Mfg Ind Ltd | Method and device for prevention and protection of electrical transformer against explosion and fire |
AU2006314089B2 (en) * | 2005-11-16 | 2009-07-16 | Ctr Manufacturing Industries Limited | Method and device for prevention and protection of electrical transformer against explosion and fire |
US7869167B2 (en) | 2005-11-16 | 2011-01-11 | Ctr Manufacturing Industries Limited | Method and device for prevention and protection of electrical transformer against explosion and fire |
CN101268531B (en) * | 2005-11-16 | 2011-05-25 | Ctr工业制造股份有限公司 | Method and device for prevention and protection of electrical transformer against explosion and fire |
EP2290663A1 (en) * | 2009-08-29 | 2011-03-02 | ABB Technology AG | Oil transformer |
WO2011023295A1 (en) * | 2009-08-29 | 2011-03-03 | Abb Technology Ag | Oil transformer |
EP3404678A1 (en) * | 2017-05-17 | 2018-11-21 | General Electric Technology GmbH | High voltage assembly and method to operate the high voltage assembly |
WO2018210544A1 (en) * | 2017-05-17 | 2018-11-22 | General Electric Technology Gmbh | High voltage assembly and method to operate the high voltage assembly |
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