FR861971A - Device for selectively protecting electrical networks - Google Patents

Device for selectively protecting electrical networks

Info

Publication number
FR861971A
FR861971A FR861971DA FR861971A FR 861971 A FR861971 A FR 861971A FR 861971D A FR861971D A FR 861971DA FR 861971 A FR861971 A FR 861971A
Authority
FR
France
Prior art keywords
electrical networks
protecting electrical
selectively protecting
selectively
networks
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.)
ABB Norden Holding AB
Original Assignee
ASEA AB
Allmanna Svenska Elektriska AB
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 ASEA AB, Allmanna Svenska Elektriska AB filed Critical ASEA AB
Application granted granted Critical
Publication of FR861971A publication Critical patent/FR861971A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
    • H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
    • H02H7/262—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of switching or blocking orders
FR861971D 1939-11-30 1939-11-30 Device for selectively protecting electrical networks Expired FR861971A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR861971T 1939-11-30

Publications (1)

Publication Number Publication Date
FR861971A true FR861971A (en) 1941-02-22

Family

ID=9342594

Family Applications (1)

Application Number Title Priority Date Filing Date
FR861971D Expired FR861971A (en) 1939-11-30 1939-11-30 Device for selectively protecting electrical networks

Country Status (1)

Country Link
FR (1) FR861971A (en)

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