GB1110954A - Improved circuit arrangement for buchholz relays - Google Patents

Improved circuit arrangement for buchholz relays

Info

Publication number
GB1110954A
GB1110954A GB3529765A GB3529765A GB1110954A GB 1110954 A GB1110954 A GB 1110954A GB 3529765 A GB3529765 A GB 3529765A GB 3529765 A GB3529765 A GB 3529765A GB 1110954 A GB1110954 A GB 1110954A
Authority
GB
United Kingdom
Prior art keywords
contact device
reed contact
magnet
mercury switch
vibration
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
GB3529765A
Inventor
Klaus Kucera
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.)
MAGDEBURG STARKSTROM ANLAGEN
Original Assignee
MAGDEBURG STARKSTROM ANLAGEN
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
Priority to FR27092A priority Critical patent/FR1443651A/en
Application filed by MAGDEBURG STARKSTROM ANLAGEN filed Critical MAGDEBURG STARKSTROM ANLAGEN
Priority to GB3529765A priority patent/GB1110954A/en
Publication of GB1110954A publication Critical patent/GB1110954A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/0006—Permanent magnet actuating reed switches
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
    • G01F23/32—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using rotatable arms or other pivotable transmission elements
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/02—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding actuated by movement of a float carrying a magnet

Abstract

1,110,954. Magnetic switches. STARKSTROM - ANLAGENBAU MAGDEBURG VEB. 17 Aug., 1965, No. 35297/65. Heading H1N. A float operated switching arrangement switchable for Buckhaly protection has a mercury switch and a magnet on a lever operable by the float. The magnet when moved operates a sealed magnetic reed contact device in parallel with the mercury switch which as so mounted on the lever as to open and close before the reed contact device which limits circuit interruption due to vibration. Alternatively the mercury switch may be in series with the reed contact device and the arangement will then be less sensitive to vibration when in the open circuit condition. A second magnet operated reed contact device may be mounted with its axis normal to that of the first contact device.
GB3529765A 1965-08-03 1965-08-17 Improved circuit arrangement for buchholz relays Expired GB1110954A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR27092A FR1443651A (en) 1965-08-03 1965-08-03 Switching device for buchholz relays insensitive to vibrations
GB3529765A GB1110954A (en) 1965-08-17 1965-08-17 Improved circuit arrangement for buchholz relays

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3529765A GB1110954A (en) 1965-08-17 1965-08-17 Improved circuit arrangement for buchholz relays

Publications (1)

Publication Number Publication Date
GB1110954A true GB1110954A (en) 1968-04-24

Family

ID=10376123

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3529765A Expired GB1110954A (en) 1965-08-03 1965-08-17 Improved circuit arrangement for buchholz relays

Country Status (1)

Country Link
GB (1) GB1110954A (en)

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