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
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 (en) 1976-07-20 1976-07-20 MEASUREMENT METHOD AND DEVICE AT MINIMUM ANGLE IMPEDANCE AND MINIMUM REACTANCE ACHIEVING DISTANCE PROTECTION FOR AN ELECTRIC ENERGY TRANSMISSION LINE

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 (en)
DE (1) DE2717681A1 (en)
FR (1) FR2359530A2 (en)
GB (1) GB1538003A (en)
SE (1) SE7706898L (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2907857C2 (en) * 1979-02-28 1985-01-10 Siemens AG, 1000 Berlin und 8000 München Circuit arrangement for determining the reactance of a power transmission line in the event of a short circuit

Also Published As

Publication number Publication date
DE2717681A1 (en) 1978-01-26
SE7706898L (en) 1978-01-21
CH594305A5 (en) 1978-01-13
FR2359530A2 (en) 1978-02-17
FR2359530B2 (en) 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