Classifications

• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
  • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
  • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
  • H02H7/0833—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors for electric motors with control arrangements
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
  • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
  • H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
  • H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
  • H02H3/33—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers

Applications Claiming Priority (2)

Publications (1)

Family

ID=26218570

Family Applications (1)

Country Status (13)

• 1975
  • 1975-10-20 NL NL7512272A patent/NL7512272A/en not_active Application Discontinuation
  • 1975-10-21 IT IT28464/75A patent/IT1043503B/en active
  • 1975-10-21 ES ES441955A patent/ES441955A1/en not_active Expired
  • 1975-10-22 GB GB43452/75A patent/GB1520478A/en not_active Expired
  • 1975-10-22 FI FI752950A patent/FI60328C/en not_active IP Right Cessation
  • 1975-10-23 LU LU73636A patent/LU73636A1/xx unknown
  • 1975-10-23 CH CH1375075A patent/CH604399A5/xx not_active IP Right Cessation
  • 1975-10-23 DK DK477275A patent/DK477275A/en unknown
  • 1975-10-23 IE IE2309/75A patent/IE41815B1/en unknown
  • 1975-10-23 YU YU02685/75A patent/YU39169B/en unknown
  • 1975-10-23 SE SE7511889A patent/SE412146B/en unknown
  • 1975-10-23 NO NO753565A patent/NO142326C/en unknown
  • 1975-10-24 DE DE19752547770 patent/DE2547770A1/en not_active Withdrawn

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