TREA

involving phase comparison

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  • CPC
  • H02H3/302
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Parent Industries

HELECTRICITY H02Electric power H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS H02H3/00Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection integrated protection

Current Industry

H02H3/302involving phase comparison
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ground fault overvoltage relay device
    • Patent number 10,714,924
    • Issue date Jul 14, 2020
    • Mitsubishi Electric Corporation
    • Tomoyoshi Matsumoto
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Network protector control for spot network fed from feeder sources...
    • Patent number 10,096,991
    • Issue date Oct 9, 2018
    • EATON INTELLIGENT POWER LIMITED
    • David R. Smith
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    RF phase offset detection circuit
    • Patent number 10,056,888
    • Issue date Aug 21, 2018
    • Qorvo US, Inc.
    • Christian Rye Iversen
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Protective relaying device
    • Patent number 9,057,744
    • Issue date Jun 16, 2015
    • Kabushiki Kaisha Toshiba
    • Atsushi Takeuchi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Method and apparatus for providing differential protection for an e...
    • Patent number 8,462,476
    • Issue date Jun 11, 2013
    • Areva T&D Protection & Controle
    • Jean Marmonier
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Voltage protection arrangement for an electronic device
    • Patent number 8,284,531
    • Issue date Oct 9, 2012
    • Phoenix Contact GmbH & Co. KG
    • Heinz-Carsten Landwehr
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Synchrophasor measuring device and inter-bus-line phase angle diffe...
    • Patent number 8,198,904
    • Issue date Jun 12, 2012
    • Mitsubishi Electric Corporation
    • Kempei Seki
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Method and apparatus for transmission line phase angle comparisons
    • Patent number 6,148,267
    • Issue date Nov 14, 2000
    • General Electric Company
    • William James Premerlani
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Protective relay apparatus
    • Patent number 4,234,901
    • Issue date Nov 18, 1980
    • Westinghouse Electric Corp.
    • William A. Strickland
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Power line carrier apparatus
    • Patent number 4,205,360
    • Issue date May 27, 1980
    • Westinghouse Electric Corp.
    • Melvin H. Drucker
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Out-of-step relay
    • Patent number 4,079,434
    • Issue date Mar 14, 1978
    • Westinghouse Electric Corporation
    • Walter A. Elmore
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Unsupervised trip keying for phase comparison relaying apparatus
    • Patent number 4,057,841
    • Issue date Nov 8, 1977
    • Westinghouse Electric Corporation
    • Walter L. Hinman
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Protective relay devices
    • Patent number 4,056,839
    • Issue date Nov 1, 1977
    • Tokyo Shibaura Denki Kabushiki Kaisha
    • Fumio Andow
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Modified offset keying apparatus for phase comparison relaying
    • Patent number 4,053,940
    • Issue date Oct 11, 1977
    • Westinghouse Electric Corporation
    • Walter L. Hinman
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Offset keying technique for segregated phase comparison relaying
    • Patent number 3,986,079
    • Issue date Oct 12, 1976
    • Westinghouse Electric Corporation
    • Walter L. Hinman
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Phase comparison protective relay for a transmission
    • Patent number 3,983,456
    • Issue date Sep 28, 1976
    • Mitsubishi Denki Kabushiki Kaisha
    • Kenji Suzuki
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Direct transfer-trip relaying system
    • Patent number 3,983,455
    • Issue date Sep 28, 1976
    • Westinghouse Electric Corporation
    • Walter L. Hinman
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Segregated phase comparison system
    • Patent number 3,963,964
    • Issue date Jun 15, 1976
    • Westinghouse Electric Corporation
    • Kalyan K. Mustaphi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3898531
    • Patent number 3,898,531
    • Issue date Aug 5, 1975
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3893008
    • Patent number 3,893,008
    • Issue date Jul 1, 1975
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3882361
    • Patent number 3,882,361
    • Issue date May 6, 1975
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3849763
    • Patent number 3,849,763
    • Issue date Nov 19, 1974
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3832601
    • Patent number 3,832,601
    • Issue date Aug 27, 1974
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3710189
    • Patent number 3,710,189
    • Issue date Jan 9, 1973
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3612952
    • Patent number 3,612,952
    • Issue date Oct 12, 1971
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3590324
    • Patent number 3,590,324
    • Issue date Jun 29, 1971
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3470418
    • Patent number 3,470,418
    • Issue date Sep 30, 1969
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3407353
    • Patent number 3,407,353
    • Issue date Oct 22, 1968
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3381178
    • Patent number 3,381,178
    • Issue date Apr 30, 1968
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3350578
    • Patent number 3,350,578
    • Issue date Oct 31, 1967
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents