FR51132E - Improvements in relays - Google Patents

Improvements in relays

Info

Publication number
FR51132E
FR51132E FR51132DA FR51132E FR 51132 E FR51132 E FR 51132E FR 51132D A FR51132D A FR 51132DA FR 51132 E FR51132 E FR 51132E
Authority
FR
France
Prior art keywords
relays
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.)
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 FR51132E publication Critical patent/FR51132E/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
    • H02H3/42—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 product of voltage and current
    • H02H3/425—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 product of voltage and current using phase sequence analysing arrangements
FR51132D 1939-11-30 1939-11-30 Improvements in relays Expired FR51132E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR51132T 1939-11-30

Publications (1)

Publication Number Publication Date
FR51132E true FR51132E (en) 1941-08-08

Family

ID=8686040

Family Applications (1)

Application Number Title Priority Date Filing Date
FR51132D Expired FR51132E (en) 1939-11-30 1939-11-30 Improvements in relays

Country Status (1)

Country Link
FR (1) FR51132E (en)

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