IT1108702B - Trasformatore di misura,utile per una misurazione di correnti o tensioni elettriche libera da potenziali - Google Patents

Trasformatore di misura,utile per una misurazione di correnti o tensioni elettriche libera da potenziali

Info

Publication number
IT1108702B
IT1108702B IT25336/78A IT2533678A IT1108702B IT 1108702 B IT1108702 B IT 1108702B IT 25336/78 A IT25336/78 A IT 25336/78A IT 2533678 A IT2533678 A IT 2533678A IT 1108702 B IT1108702 B IT 1108702B
Authority
IT
Italy
Prior art keywords
measurement
potentials
currents
useful
electric voltages
Prior art date
Application number
IT25336/78A
Other languages
English (en)
Other versions
IT7825336A0 (it
Original Assignee
Landis & Gyr Ag
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
Priority claimed from CH845577A external-priority patent/CH618043A5/de
Priority claimed from CH564478A external-priority patent/CH627875A5/de
Application filed by Landis & Gyr Ag filed Critical Landis & Gyr Ag
Publication of IT7825336A0 publication Critical patent/IT7825336A0/it
Application granted granted Critical
Publication of IT1108702B publication Critical patent/IT1108702B/it

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20—Instruments transformers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
    • G01R15/183—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using transformers with a magnetic core
    • G01R15/185—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using transformers with a magnetic core with compensation or feedback windings or interacting coils, e.g. 0-flux sensors
    • 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
    • G01R19/18—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of DC into AC, e.g. with choppers
    • G01R19/20—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of DC into AC, e.g. with choppers using transductors, i.e. a magnetic core transducer the saturation of which is cyclically reversed by an AC source on the secondary side
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20—Instruments transformers
    • H01F38/22—Instruments transformers for single phase ac
    • H01F38/28—Current transformers
    • H01F38/30—Constructions

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Measuring Magnetic Variables (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
IT25336/78A 1977-07-08 1978-07-05 Trasformatore di misura,utile per una misurazione di correnti o tensioni elettriche libera da potenziali IT1108702B (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH845577A CH618043A5 (en) 1977-07-08 1977-07-08 Instrument transformer for the isolated measurement of currents or voltages
CH564478A CH627875A5 (en) 1978-05-24 1978-05-24 Measurement transformer for the floating measurement of currents or voltages

Publications (2)

Publication Number Publication Date
IT7825336A0 IT7825336A0 (it) 1978-07-05
IT1108702B true IT1108702B (it) 1985-12-09

Family

ID=25698130

Family Applications (1)

Application Number Title Priority Date Filing Date
IT25336/78A IT1108702B (it) 1977-07-08 1978-07-05 Trasformatore di misura,utile per una misurazione di correnti o tensioni elettriche libera da potenziali

Country Status (8)

Country Link
US (2) US4506214A (it)
JP (1) JPS5419123A (it)
FR (1) FR2397052B1 (it)
GB (1) GB2000873B (it)
IT (1) IT1108702B (it)
NL (1) NL173331C (it)
SE (1) SE429901B (it)
YU (1) YU40712B (it)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5491614U (it) * 1977-12-12 1979-06-28
CH642477A5 (de) * 1979-04-20 1984-04-13 Landis & Gyr Ag Messwandler zum potentialfreien messen von stroemen oder spannungen.
CH651151A5 (de) * 1979-11-27 1985-08-30 Landis & Gyr Ag Messwandler zum messen eines insbesondere von einem messstrom erzeugten magnetfeldes.
CH651152A5 (de) * 1979-11-27 1985-08-30 Landis & Gyr Ag Messwandler zum messen eines insbesondere von einem messstrom erzeugten magnetfeldes.
CH650357A5 (de) * 1981-03-26 1985-07-15 Landis & Gyr Ag Magnetkernloser messwandler zum potentialfreien messen eines messstromes.
CH660538A5 (de) * 1983-03-02 1987-04-30 Landis & Gyr Ag Messwandler zum messen eines stromes.
CH660537A5 (de) * 1983-03-02 1987-04-30 Landis & Gyr Ag Messwandler zum messen eines stromes.
US4661807A (en) * 1984-10-12 1987-04-28 Gould Inc. Electric fuse holder having an integral current sensor
GB2165706B (en) * 1984-10-12 1987-09-09 Dayle Rigby Smith Alternating current sensor assembly and method of making same
US5418514A (en) * 1984-10-12 1995-05-23 Smith; Dayle R. AC current sensor and method of making same
US4591942A (en) * 1984-12-07 1986-05-27 General Electric Company Current sensing transformer assembly
EP0262293B1 (de) * 1986-09-29 1990-12-27 Landis & Gyr Betriebs AG Messwandler zum Messen des in einem elektrischen Leiter fliessenden Stromes
KR910004261B1 (ko) * 1987-04-09 1991-06-25 후지쓰 가부시끼가이샤 자전 변환 소자를 이용한 검지기
US4835463A (en) * 1987-08-24 1989-05-30 Metricom, Inc. Wide dynamic range a.c. current sensor
US4939451A (en) * 1987-08-24 1990-07-03 Metricom, Inc. Wide dynamic range a.c. current sensor
US5223790A (en) * 1991-05-10 1993-06-29 Metricom, Inc. Current sensor using current transformer with sintered primary
JPH0525282U (ja) * 1991-09-04 1993-04-02 白井松器械株式会社 遺体保存冷凍冷蔵庫
US5343143A (en) * 1992-02-11 1994-08-30 Landis & Gyr Metering, Inc. Shielded current sensing device for a watthour meter
BR9406069A (pt) * 1993-01-19 1996-02-06 Hydro Quebec Indicador de sobretensão de corrente elétrica
US5717327A (en) * 1995-09-22 1998-02-10 Bradford; Melvin J. Current sensor
US6114847A (en) * 1995-10-04 2000-09-05 Johnson; Darrell Connectionless signal detection device for conductive cables
US5841272A (en) * 1995-12-20 1998-11-24 Sundstrand Corporation Frequency-insensitive current sensor
US5917401A (en) * 1997-02-26 1999-06-29 Sundstrand Corporation Conductive bus member and method of fabricating same
US5839185A (en) * 1997-02-26 1998-11-24 Sundstrand Corporation Method of fabricating a magnetic flux concentrating core
US6337571B2 (en) * 1998-11-13 2002-01-08 Tektronix, Inc. Ultra-high-frequency current probe in surface-mount form factor
JP2000258461A (ja) * 1999-03-05 2000-09-22 Sony Corp 高周波電流検出装置
US6271656B1 (en) 1999-08-03 2001-08-07 Eaton Corporation Electrical current sensing apparatus
US6130599A (en) * 1999-08-03 2000-10-10 Eaton Corporation Electrical current sensing apparatus
DE10224747B4 (de) * 2002-06-04 2004-05-13 Infineon Technologies Ag Sensorschaltung und Verfahren zur Herstellung derselben
DE60312565T2 (de) * 2003-01-31 2007-11-22 Commissariat à l'Energie Atomique Vorrichtung zur erfassung eines rf-feldes
US7084617B2 (en) * 2004-04-21 2006-08-01 Denso Corporation Electric current sensor having magnetic gap
JP2012059899A (ja) * 2010-09-08 2012-03-22 Toshiba Corp 計器用変成器装置
DE102012209782B4 (de) * 2012-06-12 2017-10-19 Bender Gmbh & Co. Kg Verfahren und Vorrichtung zur allstromsensitiven Strommessung
DE102013112760A1 (de) * 2013-11-19 2015-05-21 Danfoss Silicon Power Gmbh Leistungsmodul mit integrierter Strommessung
US9790784B2 (en) * 2014-05-20 2017-10-17 Aps Technology, Inc. Telemetry system, current sensor, and related methods for a drilling system
US9976413B2 (en) 2015-02-20 2018-05-22 Aps Technology, Inc. Pressure locking device for downhole tools
DE102015002890B4 (de) * 2015-03-09 2019-09-19 Zollner Elektronik Ag Vorrichtung zum Messen von elektrischen Strömen bei elektrischen Bauteilen
JP6759965B2 (ja) * 2016-10-19 2020-09-23 Tdk株式会社 磁気センサ用インダクタンス素子及びこれを備える電流センサ
CN113075607B (zh) * 2021-03-18 2022-04-22 浙江聚创智能科技有限公司 一种电子式断路器内计量型互感器自取电式测量电路

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2906945A (en) * 1952-11-12 1959-09-29 Siemens Ag Apparatus for effecting an electric control in response to a magnetic field
DE1003267B (de) * 1953-09-05 1957-02-28 Siemens Ag Luftspaltloser magnetischer Kern fuer steuerbare Saettigungsdrosseln
US2946955A (en) * 1953-08-31 1960-07-26 Siemens Ag Measuring apparatus comprising a magnetic field-responsive resistor as a condition-responsive element
US3381138A (en) * 1960-12-20 1968-04-30 Kokusai Denshin Denwa Co Ltd Parametron element using ferromagnetic thin film
US3212006A (en) * 1961-06-27 1965-10-12 Gen Electric Light load compensation device for polyphase network meter including an inductor with a saturable flux path
FR1392656A (fr) * 1964-02-06 1965-03-19 Bull Sa Machines Dispositifs à impédance variable
US3372334A (en) * 1964-03-25 1968-03-05 Udylite Corp Calibrated bypass conductor current measuring system
DE1278522B (de) * 1965-04-22 1968-09-26 Standard Elektrik Lorenz Ag Gleichstrom-Summier- und Trennverstaerker zur Addition bzw. Subtraktion von Gleichstrom-Messwerten
DE1243726B (de) * 1965-06-01 1967-07-06 Siemens Ag Schaltungsanordnung zur galvanischen Trennung von Gleichstromsignalkreisen unter Verwendung von magnetfeldabhaengigen Widerstaenden
FR1453011A (fr) * 1965-11-03 1966-04-15 Pk Bureau Pri Gl Upravlenii El Transformateur de mesure de courant continu
DE1616047B1 (de) * 1967-07-01 1970-06-18 Siemens Ag Gleichstromwandler mit einer Brueckenschaltung mit vormagnetisierten Feldplatten
US3493946A (en) * 1968-02-01 1970-02-03 Burroughs Corp Traveling domain wall memory system apparatus
US3573616A (en) * 1969-03-13 1971-04-06 Ibm Current measuring system having a feedback path including a combined high gain amplifier and integrator
US3691497A (en) * 1970-10-15 1972-09-12 Us Army Leadless microminiature inductance element with a closed magnetic circuit
US3812428A (en) * 1971-03-15 1974-05-21 Licentia Gmbh Method of and apparatus for the measuring of direct current
DE2119950C3 (de) * 1971-04-23 1975-06-05 Siemens Ag, 1000 Berlin Und 8000 Muenchen Funk-Entstördrossel
GB1335472A (en) * 1971-08-05 1973-10-31 Standard Telephones Cables Ltd Magnetic thin film devices
JPS5074724A (it) * 1973-11-08 1975-06-19

Also Published As

Publication number Publication date
YU163178A (en) 1982-06-30
JPS5419123A (en) 1979-02-13
NL7807352A (nl) 1979-01-10
NL173331C (nl) 1984-01-02
GB2000873A (en) 1979-01-17
FR2397052A1 (fr) 1979-02-02
SE7807651L (sv) 1979-01-09
NL173331B (nl) 1983-08-01
JPS5757849B2 (it) 1982-12-07
YU40712B (en) 1986-04-30
USRE31613E (en) 1984-06-26
SE429901B (sv) 1983-10-03
FR2397052B1 (fr) 1986-02-07
IT7825336A0 (it) 1978-07-05
US4506214A (en) 1985-03-19
GB2000873B (en) 1982-05-26

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