TREA

Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection

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Industry

  • CPC
  • H02H5/00
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Parent Industries

HELECTRICITY H02Electric power H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS

Current Industry

H02H5/00Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection

Sub Industries

H02H5/005responsive to ionising radiation; Nuclear-radiation circumvention circuits H02H5/04responsive to abnormal temperature H02H5/041additionally responsive to excess current H02H5/042using temperature dependent resistors H02H5/043the temperature dependent resistor being disposed parallel to a heating wire H02H5/044using a semiconductor device to sense the temperature H02H5/045using a thermal radiation sensor H02H5/046using a thermocouple H02H5/047using a temperature responsive switch H02H5/048additionally responsive to excess current due to heating of the switch H02H5/06in oil-filled electric apparatus H02H5/08responsive to abnormal fluid pressure, liquid level or liquid displacement H02H5/083responsive to the entry or leakage of a liquid into an electrical appliance H02H5/086of cooling or lubricating fluids H02H5/10responsive to mechanical injury H02H5/105responsive to deterioration or interruption of earth connection H02H5/12responsive to undesired approach to, or touching of, live parts by living beings
Industries

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