GB209053A - Improvements in and relating to relief valves - Google Patents

Improvements in and relating to relief valves

Info

Publication number
GB209053A
GB209053A GB30392/23A GB3039223A GB209053A GB 209053 A GB209053 A GB 209053A GB 30392/23 A GB30392/23 A GB 30392/23A GB 3039223 A GB3039223 A GB 3039223A GB 209053 A GB209053 A GB 209053A
Authority
GB
United Kingdom
Prior art keywords
pipe
chamber
pressure
oil
trap
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
GB30392/23A
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.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
Metropolitan Vickers Electrical Co Ltd
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 Metropolitan Vickers Electrical Co Ltd filed Critical Metropolitan Vickers Electrical Co Ltd
Publication of GB209053A publication Critical patent/GB209053A/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

209,053. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Hill, L. H.). Dec. 23, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Boxes and cases.-A liquid seal device for relieving both pressure and vacuum, and particularly applicable for use with oil-immersed electrical apparatus such as contact breakers, comprises a chamber 5 connected by a pipe 7 to a vessel 3 containing a deoxidizing chamber which in turn is connected by a pipe 2 to the space above the oil in the electrical apparatus. A vent pipe 8 is normally sealed by mercury in the chamber 5 and discharges into a trap 9 having a vent 10 to atmosphere and a pipe connection 11 to the chamber 5 for returning any mercury carried over. In the event of the oil expanding inert gas passes through pipes 2, 7 and acts on the surface of the liquid, eventually displacing it below the entrance to the pipe 8 to permit the excess pressure to escape. When the internal pressure is below atmospheric, air is admitted as soon as the drop of pressure is sufficient to empty the pipe 8. In a modification the trap 9 is omitted and in a further modification adapted to operate with the same pressure difference in both directions has both inlet and outlet fitted with return pipes.
GB30392/23A 1922-12-23 1923-12-03 Improvements in and relating to relief valves Expired GB209053A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US209053XA 1922-12-23 1922-12-23

Publications (1)

Publication Number Publication Date
GB209053A true GB209053A (en) 1924-06-19

Family

ID=21801208

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30392/23A Expired GB209053A (en) 1922-12-23 1923-12-03 Improvements in and relating to relief valves

Country Status (1)

Country Link
GB (1) GB209053A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2215436A (en) * 1988-02-29 1989-09-20 Secr Defence Pressure limitation method
GB2501158A (en) * 2013-02-12 2013-10-16 Statoil Petroleum As A pressure/vacuum breaker arranged to release excess gas at a safe location
EP3109871A1 (en) * 2015-06-25 2016-12-28 ABB Technology Ltd Transformer arrangement and method for controlling pressure in a liquid-filled transformer
IT201900001687A1 (en) * 2019-02-06 2020-08-06 Sandro Matterazzo OVERPRESSURE PROTECTION SYSTEM FOR UNDERWATER TANKS

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2215436A (en) * 1988-02-29 1989-09-20 Secr Defence Pressure limitation method
GB2501158A (en) * 2013-02-12 2013-10-16 Statoil Petroleum As A pressure/vacuum breaker arranged to release excess gas at a safe location
EP3109871A1 (en) * 2015-06-25 2016-12-28 ABB Technology Ltd Transformer arrangement and method for controlling pressure in a liquid-filled transformer
WO2016207207A1 (en) * 2015-06-25 2016-12-29 Abb Schweiz Ag Transformer arrangement and method for controlling pressure in a liquid-filled transformer
US11114234B2 (en) 2015-06-25 2021-09-07 Abb Power Grids Switzerland Ag Transformer arrangement and method for controlling pressure in a liquid-filled transformer
IT201900001687A1 (en) * 2019-02-06 2020-08-06 Sandro Matterazzo OVERPRESSURE PROTECTION SYSTEM FOR UNDERWATER TANKS

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