GB693448A - Improvements in or relating to electric power transformers - Google Patents

Improvements in or relating to electric power transformers

Info

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
Application number
GB2473350A
Inventor
Leslie Smith
Frederick Kingsley
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.)
BRITISH ELECTRIC TRANSFORMER C
Original Assignee
BRITISH ELECTRIC TRANSFORMER C
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 BRITISH ELECTRIC TRANSFORMER C filed Critical BRITISH ELECTRIC TRANSFORMER C
Priority to GB2473350A priority Critical patent/GB693448A/en
Publication of GB693448A publication Critical patent/GB693448A/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
    • H01F27/08—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.
GB2473350A 1950-10-10 1950-10-10 Improvements in or relating to electric power transformers Expired GB693448A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (9)

* Cited by examiner, † Cited by third party
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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