FR1078766A - Circuit protection method and device, mainly intended for downhole service in mines - Google Patents

Circuit protection method and device, mainly intended for downhole service in mines

Info

Publication number
FR1078766A
FR1078766A FR1078766DA FR1078766A FR 1078766 A FR1078766 A FR 1078766A FR 1078766D A FR1078766D A FR 1078766DA FR 1078766 A FR1078766 A FR 1078766A
Authority
FR
France
Prior art keywords
mines
circuit protection
protection method
mainly intended
downhole service
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)
Inventor
Arnold Einsele
Kurt Wulsten
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.)
Siemens Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
Siemens AG
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 Siemens Schuckertwerke AG, Siemens AG filed Critical Siemens Schuckertwerke AG
Application granted granted Critical
Publication of FR1078766A publication Critical patent/FR1078766A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H11/00Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
    • H02H11/005Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result in case of too low isolation resistance, too high load, short-circuit; earth fault
FR1078766D 1952-06-30 1953-06-12 Circuit protection method and device, mainly intended for downhole service in mines Expired FR1078766A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1078766X 1952-06-30

Publications (1)

Publication Number Publication Date
FR1078766A true FR1078766A (en) 1954-11-23

Family

ID=7720606

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1078766D Expired FR1078766A (en) 1952-06-30 1953-06-12 Circuit protection method and device, mainly intended for downhole service in mines

Country Status (1)

Country Link
FR (1) FR1078766A (en)

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