GB1419023A - Electronically-compensated current transformers - Google Patents

Electronically-compensated current transformers

Info

Publication number
GB1419023A
GB1419023A GB759573A GB759573A GB1419023A GB 1419023 A GB1419023 A GB 1419023A GB 759573 A GB759573 A GB 759573A GB 759573 A GB759573 A GB 759573A GB 1419023 A GB1419023 A GB 1419023A
Authority
GB
United Kingdom
Prior art keywords
electronically
current transformers
compensated current
feb
compensated
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.)
Expired
Application number
GB759573A
Other languages
English (en)
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.)
Siemens Corp
Original Assignee
Siemens Corp
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 Siemens Corp filed Critical Siemens Corp
Publication of GB1419023A publication Critical patent/GB1419023A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/08—Circuits for altering the measuring range
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/42—Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils
    • H01F27/422—Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils for instrument transformers
    • H01F27/427—Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils for instrument transformers for current transformers
    • 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
    • H01F38/32—Circuit arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Measurement Of Current Or Voltage (AREA)
GB759573A 1972-02-18 1973-02-15 Electronically-compensated current transformers Expired GB1419023A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722207610 DE2207610A1 (de) 1972-02-18 1972-02-18 Anordnung zur vergroesserung des messbereiches von elektronisch kompensierten stromwandlern

Publications (1)

Publication Number Publication Date
GB1419023A true GB1419023A (en) 1975-12-24

Family

ID=5836319

Family Applications (1)

Application Number Title Priority Date Filing Date
GB759573A Expired GB1419023A (en) 1972-02-18 1973-02-15 Electronically-compensated current transformers

Country Status (9)

Country Link
JP (1) JPS4894828A (OSRAM)
CH (1) CH553414A (OSRAM)
DE (1) DE2207610A1 (OSRAM)
ES (1) ES411725A1 (OSRAM)
FR (1) FR2172323A1 (OSRAM)
GB (1) GB1419023A (OSRAM)
IT (1) IT979055B (OSRAM)
NL (1) NL7301232A (OSRAM)
SE (1) SE376803B (OSRAM)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2199149A (en) * 1986-12-22 1988-06-29 Gen Electric Electric current sensor
GB2538816A (en) * 2015-05-26 2016-11-30 Secure Int Holdings Pte Ltd Electricity meter with isolated shunt

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2045952B (en) * 1979-03-15 1983-01-12 Tokyo Shibaura Electric Co Current transforming circuits
CH661814A5 (de) * 1983-06-01 1987-08-14 Landis & Gyr Ag Messspannungswandler hoher genauigkeit.
DE3634221A1 (de) * 1986-10-08 1988-04-14 Bbc Brown Boveri & Cie Elektrischer wandler
FR2690993A1 (fr) * 1992-05-06 1993-11-12 Europ Agence Spatiale Détecteur d'intensité de courant unidirectionnel à isolement galvanique, dispositif de mesure d'intensité, convertisseur de courant continu-continu et radar mettant en Óoeuvre un tel détecteur.
FR2704652B1 (fr) * 1993-04-30 1995-06-23 Zellweger Sauter En Sa Capteur de courant pour courants alternatifs.
CN103000361A (zh) * 2012-11-22 2013-03-27 南京江北自动化技术有限公司 电流互感器
CN113241245B (zh) * 2021-05-10 2022-03-11 大连北方互感器集团有限公司 一种带有定值电阻的电流互感器及其制备方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2199149A (en) * 1986-12-22 1988-06-29 Gen Electric Electric current sensor
GB2538816A (en) * 2015-05-26 2016-11-30 Secure Int Holdings Pte Ltd Electricity meter with isolated shunt
GB2538816B (en) * 2015-05-26 2017-08-16 Secure Int Holdings Pte Ltd Electricity meter with isolated shunt

Also Published As

Publication number Publication date
IT979055B (it) 1974-09-30
JPS4894828A (OSRAM) 1973-12-06
DE2207610A1 (de) 1973-08-30
CH553414A (de) 1974-08-30
SE376803B (OSRAM) 1975-06-09
NL7301232A (OSRAM) 1973-08-21
FR2172323A1 (OSRAM) 1973-09-28
ES411725A1 (es) 1976-01-01

Similar Documents

Publication Publication Date Title
GB1533072A (en) Compensated signal isolator for measurements in high voltage environments
GB1459157A (en) High-voltage monitoring arrangements
CA1023825A (en) Position measuring transformer
AU475518B2 (en) Current amplifier
GB1419023A (en) Electronically-compensated current transformers
CA1026436A (en) Current amplifier
CA1029101A (en) Current amplifier
CA1031056A (en) Thermocouple amplifier with ground faulting indicator
GB984982A (en) An arrangement for measuring direct current, and/or for producing a signal in dependence upon the value of a direct current
CA997422A (en) Magnetizing current compensating circuit for measuring transformer load currents
CA1032597A (en) Ground fault sensor current transformer
CA1005533A (en) Constant current amplifier circuit
GB1237932A (OSRAM)
CA1014768A (en) Tubular beam load measuring devices
JPS51131666A (en) Apparatus for measuring characteristics of two-terminal element
JPS51131689A (en) Voltammetry apparatus
GB1248534A (en) Circuit for measuring transistor current gain
YU28573A (en) D.c. current measuring transformer for both current directions
JPS5374219A (en) Field current detector
JPS51114849A (en) Dc signal amplifier circuit
JPS5232248A (en) Automatic compensation circuit
CA839396A (en) Circuit for measuring transistor current gain
JPS523360A (en) Linear amplifier circuit
CS179231B1 (en) Diferential transformer sensing element feedback circuit for remote position measurement with current compensation
JPS5370742A (en) Emitter earth amplifier

Legal Events

Date Code Title Description
PS Patent sealed
CSNS Application of which complete specification have been accepted and published, but patent is not sealed