FR1300532A - Device for selective earthing of power lines - Google Patents

Device for selective earthing of power lines

Info

Publication number
FR1300532A
FR1300532A FR873232A FR873232A FR1300532A FR 1300532 A FR1300532 A FR 1300532A FR 873232 A FR873232 A FR 873232A FR 873232 A FR873232 A FR 873232A FR 1300532 A FR1300532 A FR 1300532A
Authority
FR
France
Prior art keywords
earthing
selective
power lines
lines
power
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
FR873232A
Other languages
French (fr)
Inventor
Giovanni Fronticelli
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
Priority to FR873232A priority Critical patent/FR1300532A/en
Priority claimed from CH775362A external-priority patent/CH384064A/en
Application granted granted Critical
Publication of FR1300532A publication Critical patent/FR1300532A/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
    • H02H3/38—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 both voltage and current; responsive to phase angle between voltage and current
    • H02H3/385—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 both voltage and current; responsive to phase angle between voltage and current using at least one homopolar quantity
FR873232A 1961-09-14 1961-09-14 Device for selective earthing of power lines Expired FR1300532A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR873232A FR1300532A (en) 1961-09-14 1961-09-14 Device for selective earthing of power lines

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR873232A FR1300532A (en) 1961-09-14 1961-09-14 Device for selective earthing of power lines
CH775362A CH384064A (en) 1962-06-27 1962-06-27 Device for the selective earth protection of power lines particularly at medium voltage and operating with isolated neutral

Publications (1)

Publication Number Publication Date
FR1300532A true FR1300532A (en) 1962-08-03

Family

ID=25702078

Family Applications (1)

Application Number Title Priority Date Filing Date
FR873232A Expired FR1300532A (en) 1961-09-14 1961-09-14 Device for selective earthing of power lines

Country Status (1)

Country Link
FR (1) FR1300532A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2319228A1 (en) * 1975-07-22 1977-02-18 Gen Electric Co Ltd DIRECTIONAL RELAY FOR POLYPHASED ELECTRIC ENERGY TRANSPORT LINE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2319228A1 (en) * 1975-07-22 1977-02-18 Gen Electric Co Ltd DIRECTIONAL RELAY FOR POLYPHASED ELECTRIC ENERGY TRANSPORT LINE

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