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FR839813A - Perfectionnements aux dispositifs électriques de protection - Google Patents

Perfectionnements aux dispositifs électriques de protection

Info

Publication number
FR839813A
FR839813A FR839813DA FR839813A FR 839813 A FR839813 A FR 839813A FR 839813D A FR839813D A FR 839813DA FR 839813 A FR839813 A FR 839813A
Authority
FR
France
Prior art keywords
protection devices
electrical protection
electrical
devices
protection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR839813A publication Critical patent/FR839813A/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H02H3/28—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 two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus
    • H02H3/30—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 two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus using pilot wires or other signalling channel
    • H02H3/305—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 two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus using pilot wires or other signalling channel involving current comparison

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
FR839813D 1937-06-25 1938-06-24 Perfectionnements aux dispositifs électriques de protection Expired FR839813A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB839813X 1937-06-25

Publications (1)

Publication Number Publication Date
FR839813A true FR839813A (fr) 1939-04-13

Family

ID=10554465

Family Applications (1)

Application Number Title Priority Date Filing Date
FR839813D Expired FR839813A (fr) 1937-06-25 1938-06-24 Perfectionnements aux dispositifs électriques de protection

Country Status (1)

Country Link
FR (1) FR839813A (fr)

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