CA959933A - Current transformer connection control - Google Patents

Current transformer connection control

Info

Publication number
CA959933A
CA959933A CA140,882A CA140882A CA959933A CA 959933 A CA959933 A CA 959933A CA 140882 A CA140882 A CA 140882A CA 959933 A CA959933 A CA 959933A
Authority
CA
Canada
Prior art keywords
current transformer
connection control
transformer connection
control
current
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
CA140,882A
Other languages
English (en)
Other versions
CA140882S (en
Inventor
Alain Chiffert
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.)
Compteurs Schlumberger SA
Original Assignee
Compteurs Schlumberger SA
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 Compteurs Schlumberger SA filed Critical Compteurs Schlumberger SA
Application granted granted Critical
Publication of CA959933A publication Critical patent/CA959933A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/04—Arrangements for preventing response to transient abnormal conditions, e.g. to lightning or to short duration over voltage or oscillations; Damping the influence of DC component by short circuits in AC networks
    • H02H1/046—Arrangements for preventing response to transient abnormal conditions, e.g. to lightning or to short duration over voltage or oscillations; Damping the influence of DC component by short circuits in AC networks upon detecting saturation of current transformers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
    • 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
    • H02H3/02—Details
    • H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Protection Of Transformers (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Measurement Of Current Or Voltage (AREA)
CA140,882A 1971-04-30 1972-04-28 Current transformer connection control Expired CA959933A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7115561A FR2134287B1 (cs) 1971-04-30 1971-04-30

Publications (1)

Publication Number Publication Date
CA959933A true CA959933A (en) 1974-12-24

Family

ID=9076221

Family Applications (1)

Application Number Title Priority Date Filing Date
CA140,882A Expired CA959933A (en) 1971-04-30 1972-04-28 Current transformer connection control

Country Status (10)

Country Link
US (1) US3714545A (cs)
JP (1) JPS5632846B1 (cs)
AU (1) AU468955B2 (cs)
CA (1) CA959933A (cs)
CH (1) CH558096A (cs)
DE (1) DE2221048C2 (cs)
FR (1) FR2134287B1 (cs)
GB (1) GB1393131A (cs)
IT (1) IT960897B (cs)
SE (1) SE386281B (cs)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3815013A (en) * 1972-06-14 1974-06-04 Gen Electric Current transformer with active load termination
USRE28851E (en) * 1973-05-31 1976-06-08 General Electric Company Current transformer with active load termination
US4070699A (en) * 1975-11-10 1978-01-24 Datascope Corporation Charging circuits using controlled magnetic fields
US4282417A (en) * 1978-10-30 1981-08-04 Square D Company Method for controlling magnetizing current in multipulse resistant welding
JPS55157924A (en) * 1979-05-29 1980-12-09 Fuji Electric Co Ltd Overcurrent relay
DE3021002A1 (de) * 1980-05-30 1981-12-03 Siemens AG, 1000 Berlin und 8000 München Induktiver spannungswandler
JPS5871744U (ja) * 1981-11-09 1983-05-16 株式会社リコー カセツト式給紙装置
EP0090095B1 (de) * 1982-03-29 1986-11-05 BBC Brown Boveri AG Verfahren und Einrichtung zur Auswertung des Sekundärstromes eines primärseitig in eine Leitung eines elektrischen Energieversorgungsnetzes geschalteten Stromwandlers
DE3244388A1 (de) * 1982-12-01 1984-06-07 Develop Dr. Eisbein Gmbh & Co, 7016 Gerlingen Papierbehaelter, insbesondere fuer ein buerokopiergeraet
JPS60209441A (ja) * 1984-03-31 1985-10-22 Tokyo Electric Co Ltd 乾式電子写真プリンタ−の給紙カセツト
JPS6145842A (ja) * 1984-08-02 1986-03-05 Tokyo Electric Co Ltd 静電写真プリンタの用紙乾燥装置
US4761727A (en) * 1987-04-14 1988-08-02 Reliance Comm/Tec Corporation Current sensing circuit for use with decoupled half bridge converter
JPH01157219A (ja) * 1987-09-22 1989-06-20 Mitsubishi Electric Corp 変圧器の直流偏磁検出方法
GB8805245D0 (en) * 1988-03-04 1988-04-07 Cambridge Consultants Active current transformer
DE3938154A1 (de) * 1989-11-16 1991-05-23 Siemens Ag Verfahren zum erkennen des saettigungszustandes von stromwandlern
DE19524963A1 (de) * 1995-07-08 1997-01-09 Bosch Gmbh Robert Schaltnetzteil mit B-Steuerung
US7272021B2 (en) * 1997-01-24 2007-09-18 Synqor, Inc. Power converter with isolated and regulated stages
US5999417A (en) 1997-01-24 1999-12-07 Fische, Llc High efficiency power converter
US7269034B2 (en) 1997-01-24 2007-09-11 Synqor, Inc. High efficiency power converter
US20020036085A1 (en) * 2000-01-24 2002-03-28 Bass Ronald Marshall Toroidal choke inductor for wireless communication and control
US10199950B1 (en) 2013-07-02 2019-02-05 Vlt, Inc. Power distribution architecture with series-connected bus converter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE559161A (cs) * 1956-07-18
GB1192640A (en) * 1967-09-22 1970-05-20 English Electric Co Ltd Improvements in Distance Relays
US3541428A (en) * 1968-11-04 1970-11-17 Nasa Unsaturating saturable core transformer
FR2070638A5 (cs) * 1969-12-11 1971-09-10 Compteurs Comp D
US3634875A (en) * 1970-06-24 1972-01-11 Westinghouse Electric Corp Bidirectional direct-current detector with transformer isolation

Also Published As

Publication number Publication date
JPS5632846B1 (cs) 1981-07-30
CH558096A (fr) 1975-01-15
JPS484924A (cs) 1973-01-22
SE386281B (sv) 1976-08-02
AU468955B2 (en) 1976-01-29
AU4139972A (en) 1973-10-25
IT960897B (it) 1973-11-30
FR2134287A1 (cs) 1972-12-08
DE2221048A1 (de) 1972-11-16
DE2221048C2 (de) 1983-04-21
FR2134287B1 (cs) 1974-03-08
US3714545A (en) 1973-01-30
GB1393131A (en) 1975-05-07

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