FR909293A - Protection device for polyphase electrical system - Google Patents

Protection device for polyphase electrical system

Info

Publication number
FR909293A
FR909293A FR909293DA FR909293A FR 909293 A FR909293 A FR 909293A FR 909293D A FR909293D A FR 909293DA FR 909293 A FR909293 A FR 909293A
Authority
FR
France
Prior art keywords
protection device
electrical system
polyphase electrical
polyphase
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
French (fr)
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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR909293A publication Critical patent/FR909293A/en
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
    • H02H3/32—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
    • H02H3/34—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 of a three-phase system
FR909293D 1945-02-15 1945-02-15 Protection device for polyphase electrical system Expired FR909293A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR909293T 1945-02-15

Publications (1)

Publication Number Publication Date
FR909293A true FR909293A (en) 1946-05-03

Family

ID=9407844

Family Applications (1)

Application Number Title Priority Date Filing Date
FR909293D Expired FR909293A (en) 1945-02-15 1945-02-15 Protection device for polyphase electrical system

Country Status (1)

Country Link
FR (1) FR909293A (en)

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