BE560786A - - Google Patents

Info

Publication number
BE560786A
BE560786A BE560786DA BE560786A BE 560786 A BE560786 A BE 560786A BE 560786D A BE560786D A BE 560786DA BE 560786 A BE560786 A BE 560786A
Authority
BE
Belgium
Prior art keywords
control
circuit
voltage
conductor
control circuit
Prior art date
Application number
Other languages
English (en)
French (fr)
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 BE560786A publication Critical patent/BE560786A/fr
Priority claimed from DES50586A external-priority patent/DE1051950B/de

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F17/00Methods or devices for use in mines or tunnels, not covered elsewhere
    • E21F17/18Special adaptations of signalling or alarm devices
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00Emergency 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
    • H02H7/005Emergency 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

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)
  • Amplifiers (AREA)
BE560786D 1956-09-28 BE560786A (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE541172T
DES50586A DE1051950B (de) 1956-09-28 1956-09-28 Eigensichere Schutz- und Steuerschaltung fuer Leitungen

Publications (1)

Publication Number Publication Date
BE560786A true BE560786A (de)

Family

ID=25662050

Family Applications (1)

Application Number Title Priority Date Filing Date
BE560786D BE560786A (de) 1956-09-28

Country Status (1)

Country Link
BE (1) BE560786A (de)

Similar Documents

Publication Publication Date Title
US4013929A (en) Multiple duty components of a ground fault receptacle
FR2616600A1 (fr) Appareil electrique de protection magnetothermique et differentielle
US3665252A (en) Electrical protective circuit
FR2361663A1 (fr) Dispositif de mesure de courant, en particulier pour la detection de courants de defaut
US2709736A (en) Load break
BE560786A (de)
FR2426973A1 (fr) Disjoncteur de courant de fuite
FR3089340B1 (fr) Transformateur de courant, dispositif de protection et disjoncteur électrique comportant un tel transformateur
US2422288A (en) Apparatus for testing electrical insulation
SU489178A1 (ru) Трансформатор тока
GB1267862A (en) A safety device for use with electric installations
US1220813A (en) Protective device for electric distributing systems.
US1834431A (en) Induction relay
US2541788A (en) Safety grounding device
SU96004A1 (ru) Устройство дл измерени запаса надежности
GB976862A (en) Improvements in or relating to automatic circuit breakers
US1518335A (en) Telephone-circuit-testing apparatus
US1722419A (en) System for the distribution of electric energy
US645008A (en) Protective system of electric distribution.
US352342A (en) Sylvania
SU361450A1 (ru) УСТРОЙСТВО дл КОНТРОЛЯ ИСПРАВНОСТИ
US1100225A (en) Electric testing apparatus.
US1951149A (en) Electric apparatus
GB1152793A (en) Improvements in and relating to Earth Leakage Protection Devices
US1665567A (en) Ignition tester