FI78182B - Saett och anordning foer transformering av en likstroem eller en laogfrekvent vaexelstroem. - Google Patents

Saett och anordning foer transformering av en likstroem eller en laogfrekvent vaexelstroem. Download PDF

Info

Publication number
FI78182B
FI78182B FI843243A FI843243A FI78182B FI 78182 B FI78182 B FI 78182B FI 843243 A FI843243 A FI 843243A FI 843243 A FI843243 A FI 843243A FI 78182 B FI78182 B FI 78182B
Authority
FI
Finland
Prior art keywords
current
winding
transformer
measured
deviation
Prior art date
Application number
FI843243A
Other languages
English (en)
Swedish (sv)
Other versions
FI843243A0 (fi
FI843243A (fi
FI78182C (fi
Inventor
Frank Helge Hagelin
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of FI843243A0 publication Critical patent/FI843243A0/fi
Publication of FI843243A publication Critical patent/FI843243A/fi
Publication of FI78182B publication Critical patent/FI78182B/fi
Application granted granted Critical
Publication of FI78182C publication Critical patent/FI78182C/fi

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R17/00—Measuring arrangements involving comparison with a reference value, e.g. bridge
    • G01R17/02—Arrangements in which the value to be measured is automatically compared with a reference value
    • G01R17/06—Automatic balancing arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Transformers For Measuring Instruments (AREA)
FI843243A 1982-12-21 1984-08-16 Saett och anordning foer transformering av en likstroem eller en laogfrekvent vaexelstroem. FI78182C (fi)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE8207304 1982-12-21
SE8207304A SE434781B (sv) 1982-12-21 1982-12-21 Sett att meta en likstrom eller en lagfrekvent vexelstrom
SE8300450 1983-12-14
PCT/SE1983/000450 WO1984002581A1 (en) 1982-12-21 1983-12-14 Method of measuring a dc curent or a low-frequency ac current

Publications (4)

Publication Number Publication Date
FI843243A0 FI843243A0 (fi) 1984-08-16
FI843243A FI843243A (fi) 1984-08-16
FI78182B true FI78182B (fi) 1989-02-28
FI78182C FI78182C (fi) 1989-06-12

Family

ID=20349089

Family Applications (1)

Application Number Title Priority Date Filing Date
FI843243A FI78182C (fi) 1982-12-21 1984-08-16 Saett och anordning foer transformering av en likstroem eller en laogfrekvent vaexelstroem.

Country Status (10)

Country Link
US (1) US4682100A (fi)
EP (1) EP0128941B1 (fi)
AU (1) AU563315B2 (fi)
DE (1) DE3370545D1 (fi)
DK (1) DK149439C (fi)
ES (1) ES8500459A1 (fi)
FI (1) FI78182C (fi)
IT (1) IT1170036B (fi)
SE (1) SE434781B (fi)
WO (1) WO1984002581A1 (fi)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4761605A (en) * 1986-12-22 1988-08-02 General Electric Company Input switching in electronic watthour meter
US4899103A (en) * 1987-07-16 1990-02-06 Brooktree Corporation Current meter
US5053695A (en) * 1990-03-09 1991-10-01 Space Systems/Loral, Inc. Dc current monitor
US5811965A (en) * 1994-12-28 1998-09-22 Philips Electronics North America Corporation DC and AC current sensor having a minor-loop operated current transformer
US5652507A (en) * 1996-01-31 1997-07-29 Eaton Corporation Apparatus and method for measuring an AC current which saturates the core of a current transformer
US6184673B1 (en) * 1998-09-24 2001-02-06 Rockwell Technologies, Llc Active reset current sensor with measurement feedback
DE19943802A1 (de) * 1999-09-13 2001-03-15 Siemens Ag Allstromsensitive Fehlerstrom-Schutzeinrichtung und Verfahren zur Erfassung eines Fehlerstroms
DE102005007378A1 (de) * 2005-02-17 2006-08-24 Siemens Ag Vorrichtung zur induktiven Gleichstomerfassung
CN116400136B (zh) * 2023-03-24 2023-10-20 浙江伊控动力系统有限公司 一种计算电流传感器相移的方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE103331C1 (fi) *
US2923820A (en) * 1956-10-16 1960-02-02 Rca Corp Phasing system
US3023370A (en) * 1959-11-25 1962-02-27 Servo Corp Of America Variable frequency generator control circuit
US3461382A (en) * 1965-05-28 1969-08-12 Us Navy Pulse dependent feedback system for measuring changes in a physical phenomenon
DE2300802A1 (de) * 1973-01-09 1974-07-11 Philips Patentverwaltung Schaltungsanordnung zur potentialfreien strommessung
US3989931A (en) * 1975-05-19 1976-11-02 Rockwell International Corporation Pulse count generator for wide range digital phase detector
CH593493A5 (fi) * 1975-12-17 1977-12-15 Bbc Brown Boveri & Cie
US4314200A (en) * 1977-09-01 1982-02-02 Bbc Brown, Boveri & Company Limited Method and apparatus for detection of magnetization
SU748280A1 (ru) * 1978-06-13 1980-07-15 Предприятие П/Я Г-4421 Устройство дл калибровки нул двухполупериодных цифровых фазометров
US4198595A (en) * 1978-09-05 1980-04-15 General Electric Company Apparatus and method of phase shift compensation of an active terminated current transformer
DE3025356A1 (de) * 1980-07-04 1982-01-21 Deutsche Itt Industries Gmbh, 7800 Freiburg Schaltungsanordnung zur digitalen phasendifferenz-messung, deren verwendung in einer synchronisierschaltung und entsprechende synchronisierschaltung
US4438393A (en) * 1981-08-18 1984-03-20 Moskalik Leonid M Phase-metering device
JPS5892963A (ja) * 1981-11-30 1983-06-02 Anritsu Corp 位相検出器

Also Published As

Publication number Publication date
AU2411684A (en) 1984-07-17
DK149439C (da) 1987-04-13
ES528209A0 (es) 1984-10-01
DE3370545D1 (en) 1987-04-30
EP0128941B1 (en) 1987-03-25
SE8207304L (sv) 1984-06-22
DK397384D0 (da) 1984-08-17
EP0128941A1 (en) 1984-12-27
SE8207304D0 (sv) 1982-12-21
IT8324305A1 (it) 1985-06-21
IT1170036B (it) 1987-06-03
IT8324305A0 (it) 1983-12-21
ES8500459A1 (es) 1984-10-01
WO1984002581A1 (en) 1984-07-05
US4682100A (en) 1987-07-21
DK397384A (da) 1984-08-17
DK149439B (da) 1986-06-09
FI843243A0 (fi) 1984-08-16
SE434781B (sv) 1984-08-13
FI843243A (fi) 1984-08-16
AU563315B2 (en) 1987-07-02
FI78182C (fi) 1989-06-12

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MM Patent lapsed
MM Patent lapsed

Owner name: OY L M ERICSSON AB