TREA

for fluid insulated switchgear, wherein the insulating fluid is also the working fluid

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Industry

  • CPC
  • H01H33/302
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Parent Industries

HELECTRICITY H01Electric elements H01HELECTRIC SWITCHES RELAYS SELECTORS EMERGENCY PROTECTIVE DEVICES H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means

Current Industry

H01H33/302for fluid insulated switchgear, wherein the insulating fluid is also the working fluid
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Hydraulic drive for a switchgear
    • Patent number 10,229,799
    • Issue date Mar 12, 2019
    • Hitachi, Ltd.
    • Shinji Seto
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Operating mechanism for high-voltage circuit-breakers
    • Patent number 5,959,274
    • Issue date Sep 28, 1999
    • GEC Alsthom T&D SA
    • Michel Perret
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Gas insulated high-voltage circuit breaker with pneumatic operating...
    • Patent number 5,187,339
    • Issue date Feb 16, 1993
    • Merlin Gerin
    • Mario Lissandrin
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Arc shorting device
    • Patent number 4,347,414
    • Issue date Aug 31, 1982
    • Northern Engineering Industries, Limited
    • Peter Headley
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Operating device for enclosed high voltage circuit breakers
    • Patent number 4,029,922
    • Issue date Jun 14, 1977
    • Asea Aktiebolag
    • Sten Berneryd
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3784771
    • Patent number 3,784,771
    • Issue date Jan 8, 1974
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3728507
    • Patent number 3,728,507
    • Issue date Apr 17, 1973
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3567885
    • Patent number 3,567,885
    • Issue date Mar 2, 1971
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3555279
    • Patent number 3,555,279
    • Issue date Jan 12, 1971
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3553406
    • Patent number 3,553,406
    • Issue date Jan 5, 1971
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3239636
    • Patent number 3,239,636
    • Issue date Mar 8, 1966
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3214542
    • Patent number 3,214,542
    • Issue date Oct 26, 1965
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3093717
    • Patent number 3,093,717
    • Issue date Jun 11, 1963
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3014111
    • Patent number 3,014,111
    • Issue date Dec 19, 1961
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2978559
    • Patent number 2,978,559
    • Issue date Apr 4, 1961
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2969446
    • Patent number 2,969,446
    • Issue date Jan 24, 1961
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2886672
    • Patent number 2,886,672
    • Issue date May 12, 1959
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2689888
    • Patent number 2,689,888
    • Issue date Sep 21, 1954
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2686243
    • Patent number 2,686,243
    • Issue date Aug 10, 1954
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2574334
    • Patent number 2,574,334
    • Issue date Nov 6, 1951
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2391759
    • Patent number 2,391,759
    • Issue date Dec 25, 1945
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2071965
    • Patent number 2,071,965
    • Issue date Feb 23, 1937
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents