TREA

due to variation of ohmic resistance in field circuit, using resistances switched in or out of circuit step by step

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Industry

  • CPC
  • H02P9/16
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Parent Industries

HELECTRICITY H02Electric power H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS H02P9/00Arrangements for controlling electric generators for the purpose of obtaining a desired output

Current Industry

H02P9/16due to variation of ohmic resistance in field circuit, using resistances switched in or out of circuit step by step
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Variable impedance device for a wind turbine
    • Patent number 10,352,304
    • Issue date Jul 16, 2019
    • INGETEAM POWER TECHNOLOGY, S.A.
    • Francisco Javier Chivite Zabalza
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Electric load damper for damping torsional oscillation
    • Patent number 8,217,630
    • Issue date Jul 10, 2012
    • Hamilton Sundstrand Corporation
    • Albert L. Markunas
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3189814
    • Patent number 3,189,814
    • Issue date Jun 15, 1965
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2253340
    • Patent number 2,253,340
    • Issue date Aug 19, 1941
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2246301
    • Patent number 2,246,301
    • Issue date Jun 17, 1941
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2246306
    • Patent number 2,246,306
    • Issue date Jun 17, 1941
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2208393
    • Patent number 2,208,393
    • Issue date Jul 16, 1940
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    1924190
    • Patent number 1,924,190
    • Issue date Aug 29, 1933
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    1724846
    • Patent number 1,724,846
    • Issue date Aug 13, 1929
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    1696417
    • Patent number 1,696,417
    • Issue date Dec 25, 1928
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    1401337
    • Patent number 1,401,337
    • Issue date Dec 27, 1921
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    1339902
    • Patent number 1,339,902
    • Issue date May 11, 1920
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents