BE609464A - Quotientmètre, en particulier pour dispositif de protection - Google Patents

Quotientmètre, en particulier pour dispositif de protection

Info

Publication number
BE609464A
BE609464A BE609464A BE609464A BE609464A BE 609464 A BE609464 A BE 609464A BE 609464 A BE609464 A BE 609464A BE 609464 A BE609464 A BE 609464A BE 609464 A BE609464 A BE 609464A
Authority
BE
Belgium
Prior art keywords
quotientmeter
protection device
protection
Prior art date
Application number
BE609464A
Other languages
English (en)
Original Assignee
Brown
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 Brown filed Critical Brown
Publication of BE609464A publication Critical patent/BE609464A/fr

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
    • H02H3/40—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 ratio of voltage and current
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/08—Measuring resistance by measuring both voltage and current
    • G01R27/10—Measuring resistance by measuring both voltage and current using two-coil or crossed-coil instruments forming quotient
    • G01R27/12—Measuring resistance by measuring both voltage and current using two-coil or crossed-coil instruments forming quotient using hand generators, e.g. meggers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/16—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division
    • G06G7/161—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division with pulse modulation, e.g. modulation of amplitude, width, frequency, phase or form

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
BE609464A 1960-10-25 1961-10-23 Quotientmètre, en particulier pour dispositif de protection BE609464A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1190260A CH383494A (de) 1960-10-25 1960-10-25 Elektrischer Quotientenmesser, insbesondere für Schutzeinrichtungen

Publications (1)

Publication Number Publication Date
BE609464A true BE609464A (fr) 1962-02-15

Family

ID=4378000

Family Applications (1)

Application Number Title Priority Date Filing Date
BE609464A BE609464A (fr) 1960-10-25 1961-10-23 Quotientmètre, en particulier pour dispositif de protection

Country Status (4)

Country Link
BE (1) BE609464A (fr)
CH (1) CH383494A (fr)
GB (1) GB932704A (fr)
NL (1) NL268786A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3654424A (en) * 1970-03-23 1972-04-04 Robotron Corp Quotient circuit
NO342173B1 (en) * 2016-12-15 2018-04-09 Wirescan As Method for measuring an impedance of an electric cable, a coupler arrangement and uses thereof

Also Published As

Publication number Publication date
GB932704A (en) 1963-07-31
CH383494A (de) 1964-10-31
NL268786A (fr)

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