BR8800667A - Transdutor de corrente em tensao - Google Patents

Transdutor de corrente em tensao

Info

Publication number
BR8800667A
BR8800667A BR8800667A BR8800667A BR8800667A BR 8800667 A BR8800667 A BR 8800667A BR 8800667 A BR8800667 A BR 8800667A BR 8800667 A BR8800667 A BR 8800667A BR 8800667 A BR8800667 A BR 8800667A
Authority
BR
Brazil
Prior art keywords
voltage current
current transducer
transducer
voltage
current
Prior art date
Application number
BR8800667A
Other languages
English (en)
Inventor
Joseph Charles Engel
Original Assignee
Westinghouse Electric 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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of BR8800667A publication Critical patent/BR8800667A/pt

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
    • 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
    • H01F27/24—Magnetic cores
    • H01F27/255—Magnetic cores made from particles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/08—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators
    • H01F29/10—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators having movable part of magnetic circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/10—Composite arrangements of magnetic circuits
    • H01F3/14—Constrictions; Gaps, e.g. air-gaps

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnets (AREA)
  • Control Of Voltage And Current In General (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Control Of Electric Motors In General (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Powder Metallurgy (AREA)
  • Soft Magnetic Materials (AREA)
BR8800667A 1987-02-19 1988-02-18 Transdutor de corrente em tensao BR8800667A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US1642087A 1987-02-19 1987-02-19
US11100787A 1987-10-21 1987-10-21

Publications (1)

Publication Number Publication Date
BR8800667A true BR8800667A (pt) 1988-10-04

Family

ID=26688572

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8800667A BR8800667A (pt) 1987-02-19 1988-02-18 Transdutor de corrente em tensao

Country Status (7)

Country Link
EP (1) EP0279596B1 (pt)
JP (1) JPS63282667A (pt)
AU (1) AU611126B2 (pt)
BR (1) BR8800667A (pt)
CA (1) CA1307823C (pt)
DE (1) DE3884422T2 (pt)
MX (1) MX167493B (pt)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5774323A (en) * 1995-10-31 1998-06-30 Eaton Corporation Detection of contact position from coil current in electromagnetic switches having AC or DC operated coils
DE102011089424A1 (de) * 2011-12-21 2013-06-27 Siemens Aktiengesellschaft Verfahren zum Betrieb einer Lade- und/oder Entladeeinrichtung für einen elektrischen Energiespeicher sowie Lade- und/oder Entladeeinrichtung
JP6039538B2 (ja) * 2013-11-26 2016-12-07 株式会社エス・エッチ・ティ ギャップレス磁芯、これを用いたコイル装置及びコイル装置の製造方法
DE102020119344A1 (de) 2020-07-22 2022-01-27 Maschinenfabrik Reinhausen Gmbh Laststufenschalter und verfahren zur betätigung eines laststufenschalters

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3197721A (en) * 1963-07-01 1965-07-27 Sperry Rand Corp Toroidal apparatus with winding surrounding both core and gap wherein permeable material is variably positioned
US3296567A (en) * 1964-05-25 1967-01-03 Westinghouse Electric Corp Electric control device
CH467505A (de) * 1968-03-14 1969-01-15 Landis & Gyr Ag Messwandler mit einstellbarem Übersetzungsverhältnis
US3449703A (en) * 1968-03-20 1969-06-10 Gen Electric Current transformer having an accuracy unimpaired by stray flux from adjacent conductors
GB1275787A (en) * 1969-09-04 1972-05-24 Drake Transformers Ltd Improvements in and relating to variable inductances
JPS50134678A (pt) * 1974-04-10 1975-10-24
JPS5332061B2 (pt) * 1974-05-23 1978-09-06
JPS5421925B2 (pt) * 1974-07-12 1979-08-03
US4368424A (en) * 1978-07-11 1983-01-11 Westinghouse Electric Corp. Mutual inductance current transducer for AC electric energy meters
US4454557A (en) * 1982-04-15 1984-06-12 Mcgraw-Edison Company Non-linear alternating current transducer
JPS59119710A (ja) * 1982-12-27 1984-07-11 Toshiba Corp 鉄心
JPS618910A (ja) * 1984-06-25 1986-01-16 Hitachi Cable Ltd 可変リアクトル
JPS61243101A (ja) * 1985-04-17 1986-10-29 Hitachi Metals Ltd Ｆｅ−Ｎｉ系合金圧粉磁心

Also Published As

Publication number Publication date
CA1307823C (en) 1992-09-22
EP0279596A1 (en) 1988-08-24
JPS63282667A (ja) 1988-11-18
MX167493B (es) 1993-03-25
AU1129688A (en) 1988-08-25
DE3884422T2 (de) 1994-05-11
AU611126B2 (en) 1991-06-06
DE3884422D1 (de) 1993-11-04
EP0279596B1 (en) 1993-09-29

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Legal Events

Date Code Title Description
PC Transfer

Free format text: EATON CORPORATION (US)

B21A Expiry acc. art. 78, item i of ipl- expiry of the term of protection

Free format text: PATENTE EXTINTA EM 18/02/2003