NL99270C - - Google Patents

Info

Publication number
NL99270C
NL99270C NL99270DA NL99270C NL 99270 C NL99270 C NL 99270C NL 99270D A NL99270D A NL 99270DA NL 99270 C NL99270 C NL 99270C
Authority
NL
Netherlands
Application number
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.)
Publication of NL99270C publication Critical patent/NL99270C/xx
Priority claimed from DES50586A external-priority patent/DE1051950B/de

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
    • H02H7/005—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 for remote controlled apparatus; for lines connecting such apparatus
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
    • E21F17/18—Special adaptations of signalling or alarm devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
NL99270D 1956-09-28 NL99270C (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL95243T
DES50586A DE1051950B (de) 1956-09-28 1956-09-28 Eigensichere Schutz- und Steuerschaltung fuer Leitungen

Publications (1)

Publication Number Publication Date
NL99270C true NL99270C (de)

Family

ID=25995315

Family Applications (1)

Application Number Title Priority Date Filing Date
NL99270D NL99270C (de) 1956-09-28

Country Status (1)

Country Link
NL (1) NL99270C (de)

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