FR2487556B1 - - Google Patents

Info

Publication number
FR2487556B1
FR2487556B1 FR8016101A FR8016101A FR2487556B1 FR 2487556 B1 FR2487556 B1 FR 2487556B1 FR 8016101 A FR8016101 A FR 8016101A FR 8016101 A FR8016101 A FR 8016101A FR 2487556 B1 FR2487556 B1 FR 2487556B1
Authority
FR
France
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
FR8016101A
Other languages
French (fr)
Other versions
FR2487556A1 (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.)
Societe de Fabrication dInstruments de Mesure SFIM SA
Original Assignee
Societe de Fabrication dInstruments de Mesure SFIM 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 Societe de Fabrication dInstruments de Mesure SFIM SA filed Critical Societe de Fabrication dInstruments de Mesure SFIM SA
Priority to FR8016101A priority Critical patent/FR2487556A1/fr
Publication of FR2487556A1 publication Critical patent/FR2487556A1/fr
Application granted granted Critical
Publication of FR2487556B1 publication Critical patent/FR2487556B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R25/00—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
    • G01R25/005—Circuits for comparing several input signals and for indicating the result of this comparison, e.g. equal, different, greater, smaller, or for passing one of the input signals as output signal
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/097—Supervising of traffic control systems, e.g. by giving an alarm if two crossing streets have green light simultaneously
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/20—Responsive to malfunctions or to light source life; for protection

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
FR8016101A 1980-07-22 1980-07-22 Procede et dispositif pour detecter l'etat de fonctionnement d'un feu de signalisation alimente par l'intermediaire d'un transformateur Granted FR2487556A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8016101A FR2487556A1 (fr) 1980-07-22 1980-07-22 Procede et dispositif pour detecter l'etat de fonctionnement d'un feu de signalisation alimente par l'intermediaire d'un transformateur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8016101A FR2487556A1 (fr) 1980-07-22 1980-07-22 Procede et dispositif pour detecter l'etat de fonctionnement d'un feu de signalisation alimente par l'intermediaire d'un transformateur

Publications (2)

Publication Number Publication Date
FR2487556A1 FR2487556A1 (fr) 1982-01-29
FR2487556B1 true FR2487556B1 (enExample) 1984-01-13

Family

ID=9244379

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8016101A Granted FR2487556A1 (fr) 1980-07-22 1980-07-22 Procede et dispositif pour detecter l'etat de fonctionnement d'un feu de signalisation alimente par l'intermediaire d'un transformateur

Country Status (1)

Country Link
FR (1) FR2487556A1 (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0576098A3 (en) * 1992-06-26 1995-01-25 Ingenieria De Sistemas De Cont Transmission device for information about the state of loads connected to an electrical line.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB812609A (en) * 1956-05-17 1959-04-29 Siemens & Gen Electr Railway Improvements in and relating to electric light signal repeating systems
DE1141314B (de) * 1961-01-03 1962-12-20 Siemens Ag UEberwachungseinrichtung fuer mit Wechselstrom gespeiste Lichtsignal-stromkreise, insbesondere in Eisenbahnsignalanlagen
US3562647A (en) * 1969-03-14 1971-02-09 Gen Electric Power factor transducer having voltage and current responsive switching means biased by an intermittently generated voltage

Also Published As

Publication number Publication date
FR2487556A1 (fr) 1982-01-29

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Legal Events

Date Code Title Description
ST Notification of lapse