FR644914A - Method and installation for monitoring an electrical circuit - Google Patents

Method and installation for monitoring an electrical circuit

Info

Publication number
FR644914A
FR644914A FR644914DA FR644914A FR 644914 A FR644914 A FR 644914A FR 644914D A FR644914D A FR 644914DA FR 644914 A FR644914 A FR 644914A
Authority
FR
France
Prior art keywords
monitoring
installation
electrical circuit
electrical
circuit
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.)
Thermosonus SA
Original Assignee
Thermosonus 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 Thermosonus SA filed Critical Thermosonus SA
Application granted granted Critical
Publication of FR644914A publication Critical patent/FR644914A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H02H3/26—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents
FR644914D 1927-11-17 1927-11-17 Method and installation for monitoring an electrical circuit Expired FR644914A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR644914T 1927-11-17

Publications (1)

Publication Number Publication Date
FR644914A true FR644914A (en) 1928-10-16

Family

ID=9000421

Family Applications (1)

Application Number Title Priority Date Filing Date
FR644914D Expired FR644914A (en) 1927-11-17 1927-11-17 Method and installation for monitoring an electrical circuit

Country Status (1)

Country Link
FR (1) FR644914A (en)

Similar Documents

Publication Publication Date Title
FR644914A (en) Method and installation for monitoring an electrical circuit
FR709005A (en) Method and device for the protection of electrical contacts
FR661583A (en) Protection device for electrical current distribution installations
FR633287A (en) Connection arrangement for alarm systems
FR633088A (en) Device for the connection of electrical and other conductors
CH127386A (en) Device for reducing the tripping time of automatic electrical switches.
FR609426A (en) Method for preventing the propagation of explosions in electrical dust precipitation installations
FR619284A (en) Method and device for the production of lamellar metallic deposits
FR651265A (en) Monitoring device for electrical installations for street lighting
FR656441A (en) Method of electric transmission of images
FR619367A (en) Device for improving the efficiency of an alternating current track circuit
FR811207A (en) Electrical monitoring relay
FR569367A (en) Method and device for the production of ozone by electrical means
FR871678A (en) Method and device for insulating electrical conductors
FR588358A (en) Device for isolating electrical conductors through thin metal walls
FR597665A (en) Method and device for determining the variations occurring in the frequencies of the alternating currents of an electrical installation
FR672943A (en) Apparatus for monitoring the regular condition of electrical installations, consisting of generators and accumulators on automobiles
FR535931A (en) Method and device for the electrical connection of rails
FR665355A (en) Connection method for telephone systems
SU24929A1 (en) Device for signaling the damage of electrical wires
FR32131E (en) Method of using the phenomenon of polarization on dielectric substances during the passage of current
FR658488A (en) Improvements to electrical installations with monitoring circuits
FR648131A (en) Electrical conductor for indoor installations and its manufacturing method
FR728777A (en) Device for monitoring the temperature of electrical conductors, in particular cables
FR722895A (en) Method and apparatus for the insulation of electrical conductors