FR2455285B1 - - Google Patents

Info

Publication number
FR2455285B1
FR2455285B1 FR8008873A FR8008873A FR2455285B1 FR 2455285 B1 FR2455285 B1 FR 2455285B1 FR 8008873 A FR8008873 A FR 8008873A FR 8008873 A FR8008873 A FR 8008873A FR 2455285 B1 FR2455285 B1 FR 2455285B1
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
FR8008873A
Other languages
French (fr)
Other versions
FR2455285A1 (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.)
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 FR2455285A1 (fr) 1980-11-21
FR2455285B1 true 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)

Families Citing this family (2)

* 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
KR850000683A (ko) * 1983-06-30 1985-02-28 카다야마 히도하지로 가변주파수 전력계통의 전압검출 장치

Family Cites Families (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

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
DE3014096A1 (de) 1980-11-13
FR2455285A1 (fr) 1980-11-21

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Legal Events

Date Code Title Description
ST Notification of lapse