FR934917A - Protective device for electrical pipes - Google Patents

Protective device for electrical pipes

Info

Publication number
FR934917A
FR934917A FR934917DA FR934917A FR 934917 A FR934917 A FR 934917A FR 934917D A FR934917D A FR 934917DA FR 934917 A FR934917 A FR 934917A
Authority
FR
France
Prior art keywords
protective device
electrical pipes
pipes
electrical
protective
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)
Inventor
Renato Compare
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 filed Critical
Application granted granted Critical
Publication of FR934917A publication Critical patent/FR934917A/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
FR934917D 1945-11-07 1946-10-17 Protective device for electrical pipes Expired FR934917A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT934917X 1945-11-07

Publications (1)

Publication Number Publication Date
FR934917A true FR934917A (en) 1948-06-04

Family

ID=11331995

Family Applications (1)

Application Number Title Priority Date Filing Date
FR934917D Expired FR934917A (en) 1945-11-07 1946-10-17 Protective device for electrical pipes

Country Status (2)

Country Link
BE (1) BE468877A (en)
FR (1) FR934917A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0061644A1 (en) * 1981-03-20 1982-10-06 Westinghouse Electric Corporation Ratio ground relay

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0061644A1 (en) * 1981-03-20 1982-10-06 Westinghouse Electric Corporation Ratio ground relay

Also Published As

Publication number Publication date
BE468877A (en)

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