GB607184A - Improvements in or relating to relays for protecting liquid-filled electrical apparatus with expansion vessels - Google Patents

Improvements in or relating to relays for protecting liquid-filled electrical apparatus with expansion vessels

Info

Publication number
GB607184A
GB607184A GB282546A GB282546A GB607184A GB 607184 A GB607184 A GB 607184A GB 282546 A GB282546 A GB 282546A GB 282546 A GB282546 A GB 282546A GB 607184 A GB607184 A GB 607184A
Authority
GB
United Kingdom
Prior art keywords
relay
relays
relating
operated
electrical apparatus
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
GB282546A
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.)
ABB Norden Holding AB
Original Assignee
ASEA AB
Allmanna Svenska Elektriska AB
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 ASEA AB, Allmanna Svenska Elektriska AB filed Critical ASEA AB
Publication of GB607184A publication Critical patent/GB607184A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
    • H01H33/55—Oil reservoirs or tanks; Lowering means therefor
    • H01H33/555—Protective arrangements responsive to abnormal fluid pressure, liquid level or liquid displacement, e.g. Buchholz relays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
    • F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
    • H02H5/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal fluid pressure, liquid level or liquid displacement, e.g. Buchholz relays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/18—Switches operated by change of liquid level or of liquid density, e.g. float switch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
    • H01H35/40—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by devices allowing continual flow of fluid, e.g. vane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87265—Dividing into parallel flow paths with recombining
    • Y10T137/87515—Mechanical movement between actuator and valve
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87265—Dividing into parallel flow paths with recombining
    • Y10T137/87539—Having guide or restrictor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87917—Flow path with serial valves and/or closures
    • Y10T137/88062—Coaxial oppositely directed seats

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Transformer Cooling (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)

Abstract

607,184. Fluid-operated switches. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Jan. 29, 1946, No. 2825. Convention date, May 5, 1945. [Class 38 (v)] The housing 11 of a gas-operated protective relay in the pipe between liquid-filled apparatus, such as transformers, and an expansion vessel, has disc valves 12 operated by eccentrics 13 on shafts 14, built therein, so that the relay parts can be removed with the cover for servicing without draining the expansion vessel. A byepass 16 permits " breathing " when the valves 12 are closed, and is sufficiently small not to affect the normal operation of the relay. The relay may be of any known type, having a liquid-level responsive float 17 pivoted at 18, and a speed-responsive screen 19 pivoted at 20.
GB282546A 1945-05-05 1946-01-29 Improvements in or relating to relays for protecting liquid-filled electrical apparatus with expansion vessels Expired GB607184A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE607184X 1945-05-05
SE2638120X 1945-05-05

Publications (1)

Publication Number Publication Date
GB607184A true GB607184A (en) 1948-08-26

Family

ID=26656290

Family Applications (1)

Application Number Title Priority Date Filing Date
GB282546A Expired GB607184A (en) 1945-05-05 1946-01-29 Improvements in or relating to relays for protecting liquid-filled electrical apparatus with expansion vessels

Country Status (2)

Country Link
US (1) US2638120A (en)
GB (1) GB607184A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7174918B2 (en) * 2005-02-01 2007-02-13 Delphi Technologies, Inc. Air flow control valve for vehicle air conditioning module
EP2742267B1 (en) * 2011-08-11 2015-10-07 Fisher Controls International Llc Actuators for use with fluid control devices having multiple fluid flow control members

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1791012A (en) * 1931-02-03 Ments
US1379008A (en) * 1919-11-17 1921-05-24 Albert B Frenier Temperature-producing mechanism and controlling means therefor
US1483081A (en) * 1921-03-12 1924-02-12 Peter P Dean Valve
US1417770A (en) * 1921-07-08 1922-05-30 Frank H Schaefer By-pass valve
US1648985A (en) * 1921-09-09 1927-11-15 Fleming Ivan Rupert Boat propelled by manually-operated mechanism
US1697608A (en) * 1925-03-06 1929-01-01 Franklin M Patterson Valve
US1954597A (en) * 1931-06-19 1934-04-10 Moloney Electric Company Transformer tank
US1925436A (en) * 1932-01-07 1933-09-05 Benjamin F Dowd Valve
AT154699B (en) * 1936-11-19 1938-10-25 Siemens Ag Protective device for oil-filled electrical equipment that responds to oil flow and gas development.
US2246800A (en) * 1939-10-17 1941-06-24 E H Haupt Liquid level control apparatus

Also Published As

Publication number Publication date
US2638120A (en) 1953-05-12

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