FR2455285A1 - Dispositif raccorde a un reseau a courant alternatif, permettant de detecter une tension dans ce reseau et de fournir une valeur initiale proportionnelle au rapport entre la tension de ligne et la frequence du reseau - Google Patents

Dispositif raccorde a un reseau a courant alternatif, permettant de detecter une tension dans ce reseau et de fournir une valeur initiale proportionnelle au rapport entre la tension de ligne et la frequence du reseau

Info

Publication number
FR2455285A1
FR2455285A1 FR8008873A FR8008873A FR2455285A1 FR 2455285 A1 FR2455285 A1 FR 2455285A1 FR 8008873 A FR8008873 A FR 8008873A FR 8008873 A FR8008873 A FR 8008873A FR 2455285 A1 FR2455285 A1 FR 2455285A1
Authority
FR
France
Prior art keywords
network
voltage
frequency
initial value
device connected
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.)
Granted
Application number
FR8008873A
Other languages
English (en)
French (fr)
Other versions
FR2455285B1 (OSRAM
Inventor
Stig Aviander
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.)
ABB Norden Holding AB
Original Assignee
ASEA AB
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 ASEA AB filed Critical ASEA AB
Publication of FR2455285A1 publication Critical patent/FR2455285A1/fr
Application granted granted Critical
Publication of FR2455285B1 publication Critical patent/FR2455285B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/10—Measuring sum, difference or ratio
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/04—Measuring peak values or amplitude or envelope of AC or of pulses
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/34—Testing dynamo-electric machines
    • G01R31/343—Testing dynamo-electric machines in operation
    • 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
    • H02H3/46—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 frequency deviations

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Protection Of Static Devices (AREA)
FR8008873A 1979-04-24 1980-04-21 Dispositif raccorde a un reseau a courant alternatif, permettant de detecter une tension dans ce reseau et de fournir une valeur initiale proportionnelle au rapport entre la tension de ligne et la frequence du reseau Granted FR2455285A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7903585A SE416757B (sv) 1979-04-24 1979-04-24 Anordning anslutning till ett vexelstromsnet for att avkenna spenning i detta och att ge ett utgangsverde som er proportionellt med forhallandet mellan netets linjespenning och frekvens

Publications (2)

Publication Number Publication Date
FR2455285A1 true FR2455285A1 (fr) 1980-11-21
FR2455285B1 FR2455285B1 (OSRAM) 1985-04-19

Family

ID=20337884

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8008873A Granted FR2455285A1 (fr) 1979-04-24 1980-04-21 Dispositif raccorde a un reseau a courant alternatif, permettant de detecter une tension dans ce reseau et de fournir une valeur initiale proportionnelle au rapport entre la tension de ligne et la frequence du reseau

Country Status (6)

Country Link
CA (1) CA1175487A (OSRAM)
CH (1) CH650079A5 (OSRAM)
DE (1) DE3014096A1 (OSRAM)
FR (1) FR2455285A1 (OSRAM)
GB (1) GB2049959B (OSRAM)
SE (1) SE416757B (OSRAM)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0271777A3 (en) * 1983-06-30 1988-07-06 Mitsubishi Denki Kabushiki Kaisha Voltage detecting apparatus for variable-frequency power system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3044020A1 (de) * 1980-11-22 1982-06-03 Hermann Dr. 3171 Rötgesbüttel Lühr Magnetometer mit digitaler messwertdarstellung nach dem impulsintegrationsverfahren

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3546534A (en) * 1968-01-31 1970-12-08 Gen Electric Overexcitation relay
US3717818A (en) * 1972-01-10 1973-02-20 J Herbst Instantaneous voltage detector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3546534A (en) * 1968-01-31 1970-12-08 Gen Electric Overexcitation relay
US3717818A (en) * 1972-01-10 1973-02-20 J Herbst Instantaneous voltage detector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0271777A3 (en) * 1983-06-30 1988-07-06 Mitsubishi Denki Kabushiki Kaisha Voltage detecting apparatus for variable-frequency power system
EP0264971A3 (en) * 1983-06-30 1988-08-03 Mitsubishi Denki Kabushiki Kaisha Voltage detecting apparatus for variable-frequency power system

Also Published As

Publication number Publication date
SE7903585L (sv) 1980-10-25
CA1175487A (en) 1984-10-02
GB2049959A (en) 1980-12-31
SE416757B (sv) 1981-02-02
CH650079A5 (de) 1985-06-28
GB2049959B (en) 1983-01-12
FR2455285B1 (OSRAM) 1985-04-19
DE3014096A1 (de) 1980-11-13

Similar Documents

Publication Publication Date Title
SE8401246D0 (sv) Avkenningsanordning vid materialrulle
FR2679075B1 (fr) Dispositif de detection du dysfonctionnement d'une charge telle qu'un magnetron.
CH453751A (fr) Dispositif pour la détection et la mesure de signaux dérivés de l'ionisation d'un milieu gazeux
SE7415146L (sv) Anordning for avkenning av diametern av en pappersrulle
FR2455285A1 (fr) Dispositif raccorde a un reseau a courant alternatif, permettant de detecter une tension dans ce reseau et de fournir une valeur initiale proportionnelle au rapport entre la tension de ligne et la frequence du reseau
GB1301435A (OSRAM)
JPS57355A (en) Injection timing detector
JPS5348130A (en) Spark condition detecting method and device
JPS5583831A (en) Leak inspection object pipe line search method of liquid conduit line and its unit
GB1068062A (en) Improvements in paper roll profiler
JPS55112540A (en) Washer with axial power detection unit
FR2408813A1 (fr) Perfectionnements aux procedes et dispositifs de palpage a contact, notamment pour machines a mesurer
JPS5682756A (en) Control device for touch roller in coiler
GB1146192A (en) Strip length gauge and control
JPS561368A (en) Failure detection pair cable
JPH0125302Y2 (OSRAM)
BE600881A (fr) Procédé et dispositif pour la détermination, avec une exactitude quelconque, de la valeur moyenne d'une fonction variable de longueur quelconque.
CH479860A (fr) Dispositif de mesure des variations d'une grandeur physique par l'intermédiaire d'un élément détecteur dont l'impédance varie en fonction de la grandeur à mesurer
FR2426307A1 (fr) Dispositif pour controler le diametre des rouleaux d'alimentation en support d'inscription
JPS57505A (en) Measuring device for extent of eccentricity
JPS5564926A (en) Length measuring device of rolling material
FR2383449A1 (fr) Dispositif de mesure permettant de conserver l'indication d'un niveau maximum pendant une duree predetermine
JPS5254466A (en) Current measuring device
SU125224A1 (ru) Устройство дл определени параметров анкерной крепи
JPS5399969A (en) Contact roller type length measuring apparatus

Legal Events

Date Code Title Description
ST Notification of lapse