GB209053A - Improvements in and relating to relief valves - Google Patents
Improvements in and relating to relief valvesInfo
- 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
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.
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)
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 |
-
1923
- 1923-12-03 GB GB30392/23A patent/GB209053A/en not_active Expired
Cited By (6)
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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