FR846219A - Device for protection against dangerous contact voltages, in particular in electrical installations of mining operations - Google Patents

Device for protection against dangerous contact voltages, in particular in electrical installations of mining operations

Info

Publication number
FR846219A
FR846219A FR846219DA FR846219A FR 846219 A FR846219 A FR 846219A FR 846219D A FR846219D A FR 846219DA FR 846219 A FR846219 A FR 846219A
Authority
FR
France
Prior art keywords
protection against
mining operations
electrical installations
against dangerous
contact voltages
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.)
Hermes Patentverwertungs GmbH
Original Assignee
Hermes Patentverwertungs GmbH
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 Hermes Patentverwertungs GmbH filed Critical Hermes Patentverwertungs GmbH
Application granted granted Critical
Publication of FR846219A publication Critical patent/FR846219A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
    • H02H11/001—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result in case of incorrect or interrupted earth connection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/16—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to fault current to earth, frame or mass
    • H02H3/162—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to fault current to earth, frame or mass for ac systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
FR846219D 1937-11-29 1938-11-18 Device for protection against dangerous contact voltages, in particular in electrical installations of mining operations Expired FR846219A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE846219X 1937-11-29

Publications (1)

Publication Number Publication Date
FR846219A true FR846219A (en) 1939-09-12

Family

ID=6775009

Family Applications (1)

Application Number Title Priority Date Filing Date
FR846219D Expired FR846219A (en) 1937-11-29 1938-11-18 Device for protection against dangerous contact voltages, in particular in electrical installations of mining operations

Country Status (2)

Country Link
FR (1) FR846219A (en)
NL (1) NL56032C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE971635C (en) * 1948-10-02 1959-03-05 Walther Dipl-Ing Bender Device for monitoring three-phase systems for ohmic conductors
DE1074729B (en) * 1960-02-04 G. Düsterloh, Fabrik für Bergwerksbedarf G. m. b. H., Sprockhövel (Westf.) Line monitor for AC systems
DE973720C (en) * 1944-03-31 1960-05-19 Aeg Protection circuit for electrical line systems
DE1092545B (en) * 1953-01-02 1960-11-10 Karlheinz Engelbach Safety device for electrical systems, especially for underground use

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE969476C (en) * 1948-10-02 1958-06-04 Siemens Ag Protective circuit for cables and lines in companies at risk of explosion, especially mining companies

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1074729B (en) * 1960-02-04 G. Düsterloh, Fabrik für Bergwerksbedarf G. m. b. H., Sprockhövel (Westf.) Line monitor for AC systems
DE973720C (en) * 1944-03-31 1960-05-19 Aeg Protection circuit for electrical line systems
DE971635C (en) * 1948-10-02 1959-03-05 Walther Dipl-Ing Bender Device for monitoring three-phase systems for ohmic conductors
DE1092545B (en) * 1953-01-02 1960-11-10 Karlheinz Engelbach Safety device for electrical systems, especially for underground use

Also Published As

Publication number Publication date
NL56032C (en) 1900-01-01

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