FR717679A - Improvements to protective devices for electrical circuits - Google Patents

Improvements to protective devices for electrical circuits

Info

Publication number
FR717679A
FR717679A FR717679DA FR717679A FR 717679 A FR717679 A FR 717679A FR 717679D A FR717679D A FR 717679DA FR 717679 A FR717679 A FR 717679A
Authority
FR
France
Prior art keywords
electrical circuits
protective devices
protective
devices
circuits
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR717679A publication Critical patent/FR717679A/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
FR717679D 1930-05-27 1931-05-27 Improvements to protective devices for electrical circuits Expired FR717679A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US717679XA 1930-05-27 1930-05-27

Publications (1)

Publication Number Publication Date
FR717679A true FR717679A (en) 1932-01-12

Family

ID=22103454

Family Applications (1)

Application Number Title Priority Date Filing Date
FR717679D Expired FR717679A (en) 1930-05-27 1931-05-27 Improvements to protective devices for electrical circuits

Country Status (1)

Country Link
FR (1) FR717679A (en)

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