GB1231108A - - Google Patents

Info

Publication number
GB1231108A
GB1231108A GB1231108DA GB1231108A GB 1231108 A GB1231108 A GB 1231108A GB 1231108D A GB1231108D A GB 1231108DA GB 1231108 A GB1231108 A GB 1231108A
Authority
GB
United Kingdom
Prior art keywords
march
wound
core
undisturbed
heading
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
Other languages
English (en)
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 filed Critical
Publication of GB1231108A publication Critical patent/GB1231108A/en
Expired legal-status Critical Current

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
    • H01F38/22—Instruments transformers for single phase ac
    • H01F38/28—Current transformers
    • H01F38/30—Constructions
    • 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
    • G01R15/181—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using coils without a magnetic core, e.g. Rogowski coils
    • 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
    • H01F2038/305—Constructions with toroidal magnetic core

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
GB1231108D 1968-03-20 1969-03-13 Expired GB1231108A (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US71460568A 1968-03-20 1968-03-20

Publications (1)

Publication Number Publication Date
GB1231108A true GB1231108A (no) 1971-05-12

Family

ID=24870730

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1231108D Expired GB1231108A (no) 1968-03-20 1969-03-13

Country Status (5)

Country Link
US (1) US3449703A (no)
CH (1) CH486758A (no)
DE (1) DE1913553A1 (no)
FR (1) FR2004314A1 (no)
GB (1) GB1231108A (no)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE29019E (en) * 1969-01-22 1976-10-26 Yeda Research & Development Co. Ltd. Intruder detection system
US3754223A (en) * 1970-01-21 1973-08-21 Yeda Res & Dev Intruder detection system
US3806798A (en) * 1973-01-29 1974-04-23 Balsbaugh Labor Inc Electrodeless conductivity measuring system
US3867657A (en) * 1974-03-29 1975-02-18 Westinghouse Electric Corp Generator having shielded current transformers positioned therein
FR2471034A1 (fr) * 1979-12-04 1981-06-12 Merlin Gerin Capteur d'intensite a support souple deformable et son procede de fabrication
FR2564594B1 (fr) * 1984-05-21 1986-09-12 Merlin Gerin Capteur de courant a noyau amagnetique
AU611126B2 (en) * 1987-02-19 1991-06-06 Westinghouse Electric Corporation Electromagnetic contactor with lightweight wide range current transducer with sintered powdered metal core
US4887029A (en) * 1988-03-18 1989-12-12 Westinghouse Electric Corp. Mutual inductance current transducer, method of making and electric energy meter incorporating same
US5341083A (en) * 1991-09-27 1994-08-23 Electric Power Research Institute, Inc. Contactless battery charging system
US5301096A (en) * 1991-09-27 1994-04-05 Electric Power Research Institute Submersible contactless power delivery system
US5225769A (en) * 1992-02-21 1993-07-06 Zmd Corporation Defibrillation discharge current sensor
FR2712423B1 (fr) * 1993-11-08 1996-02-09 Gec Alsthom T & D Sa Bobine de Rogowski utilisable dans une installation électrique avec enveloppe métallique à la terre et procédé de fabrication d'une telle bobine.
US5615075A (en) * 1995-05-30 1997-03-25 General Electric Company AC/DC current sensor for a circuit breaker
JPH10214736A (ja) * 1997-01-28 1998-08-11 Toyo Denso Co Ltd 高電圧発生用トランス
US6566994B1 (en) * 1997-03-17 2003-05-20 Fluke Corporation Coil for an AC current sensor
FR2783085B1 (fr) * 1998-09-09 2000-10-06 Alstom Technology Bobinage torique sans noyau magnetique comportant deux enroulements superposes
TR200905709A2 (tr) * 2009-07-23 2009-09-23 Deni̇zoğlu Cemaletti̇n Düşük güçlü akım transformatörlerinde diş manyetik etkileri yok etme amaçlı sargı yöntemi.
US8957753B2 (en) * 2011-11-22 2015-02-17 Abb Technology Ag Current transformer
CN110676038A (zh) * 2018-07-02 2020-01-10 福迪威（上海）工业仪器技术研发有限公司 电流互感器

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2241127A (en) * 1938-04-14 1941-05-06 Westinghouse Electric & Mfg Co Protective relay
US2975384A (en) * 1954-09-24 1961-03-14 Sprague Electric Co Toroidal inductor combinations
DE1248154B (de) * 1964-04-06 1967-08-24 Siemens Ag Mit einem Spannungwandler kombinierter Wandler
US3299384A (en) * 1964-07-01 1967-01-17 Ibm Wide-band transformer having neutralizing winding
US3353132A (en) * 1965-05-27 1967-11-14 Gen Electric Leakage flux suppressor windings for transformers

Also Published As

Publication number Publication date
US3449703A (en) 1969-06-10
CH486758A (de) 1970-02-28
DE1913553A1 (de) 1969-10-09
FR2004314A1 (fr) 1969-11-21

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees