GB1538003A - Protective device for an electrical system - Google Patents

Protective device for an electrical system

Info

Publication number
GB1538003A
GB1538003A GB18876/77A GB1887677A GB1538003A GB 1538003 A GB1538003 A GB 1538003A GB 18876/77 A GB18876/77 A GB 18876/77A GB 1887677 A GB1887677 A GB 1887677A GB 1538003 A GB1538003 A GB 1538003A
Authority
GB
United Kingdom
Prior art keywords
protective device
electrical system
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
GB18876/77A
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.)
CONTROLE ET D EQUIPMENT SOC IN
Original Assignee
CONTROLE ET D EQUIPMENT SOC IN
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 CONTROLE ET D EQUIPMENT SOC IN filed Critical CONTROLE ET D EQUIPMENT SOC IN
Publication of GB1538003A publication Critical patent/GB1538003A/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
    • H02H3/382—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 involving phase comparison between current and voltage or between values derived from current and voltage
GB18876/77A 1976-07-20 1977-05-05 Protective device for an electrical system Expired GB1538003A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7622133A FR2359530A2 (fr) 1976-07-20 1976-07-20 Procede et dispositif de mesure a minimum d'impedance d'angle et a minimum de reactance realisant une protection de distance pour une ligne de transport d'energie electrique

Publications (1)

Publication Number Publication Date
GB1538003A true GB1538003A (en) 1979-01-10

Family

ID=9175919

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18876/77A Expired GB1538003A (en) 1976-07-20 1977-05-05 Protective device for an electrical system

Country Status (5)

Country Link
CH (1) CH594305A5 (enrdf_load_html_response)
DE (1) DE2717681A1 (enrdf_load_html_response)
FR (1) FR2359530A2 (enrdf_load_html_response)
GB (1) GB1538003A (enrdf_load_html_response)
SE (1) SE7706898L (enrdf_load_html_response)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2907857C2 (de) * 1979-02-28 1985-01-10 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zur Bestimmung der Reaktanz einer Energieübertragungsleitung im Kurzschlußfalle

Also Published As

Publication number Publication date
DE2717681A1 (de) 1978-01-26
CH594305A5 (enrdf_load_html_response) 1978-01-13
SE7706898L (sv) 1978-01-21
FR2359530A2 (fr) 1978-02-17
FR2359530B2 (enrdf_load_html_response) 1981-05-08

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee