ZA721496B - An improvement in or relating to electrical apparatus - Google Patents

An improvement in or relating to electrical apparatus

Info

Publication number
ZA721496B
ZA721496B ZA721496A ZA721496A ZA721496B ZA 721496 B ZA721496 B ZA 721496B ZA 721496 A ZA721496 A ZA 721496A ZA 721496 A ZA721496 A ZA 721496A ZA 721496 B ZA721496 B ZA 721496B
Authority
ZA
South Africa
Prior art keywords
relating
improvement
electrical apparatus
electrical
Prior art date
Application number
ZA721496A
Inventor
R Spreadbury
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 ZA721496B publication Critical patent/ZA721496B/en

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
    • H01F38/02—Adaptations of transformers or inductances for specific applications or functions for non-linear operation
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
    • G05F3/02—Regulating voltage or current
    • G05F3/04—Regulating voltage or current wherein the variable is ac
    • G05F3/06—Regulating voltage or current wherein the variable is ac using combinations of saturated and unsaturated inductive devices, e.g. combined with resonant circuit
    • 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
    • H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
    • 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
    • H01F27/25—Magnetic cores made from strips or ribbons

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Coils Or Transformers For Communication (AREA)
ZA721496A 1971-04-23 1972-03-06 An improvement in or relating to electrical apparatus ZA721496B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13670171A 1971-04-23 1971-04-23

Publications (1)

Publication Number Publication Date
ZA721496B true ZA721496B (en) 1972-11-29

Family

ID=22473981

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA721496A ZA721496B (en) 1971-04-23 1972-03-06 An improvement in or relating to electrical apparatus

Country Status (10)

Country Link
US (1) US3686561A (en)
JP (2) JPS5247535B1 (en)
BE (1) BE782437A (en)
BR (1) BR7202223D0 (en)
CA (1) CA962346A (en)
FR (1) FR2134409B1 (en)
GB (1) GB1385224A (en)
IT (1) IT953694B (en)
NL (1) NL7205473A (en)
ZA (1) ZA721496B (en)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3921055A (en) * 1972-10-19 1975-11-18 Union Carbide Corp Welding power supply having dual output transformer
US3965408A (en) * 1974-12-16 1976-06-22 International Business Machines Corporation Controlled ferroresonant transformer regulated power supply
US4339706A (en) * 1975-05-29 1982-07-13 Jodice Controls Corporation Current controlling
DE7730094U1 (en) * 1976-10-06 1978-01-05 Bicc Ltd., London MAGNETIC CORE
JPS6013288B2 (en) * 1979-04-20 1985-04-06 ソニー株式会社 Trance
US4654563A (en) * 1984-03-28 1987-03-31 Energy Technologies Corp. Fluorescent lamp ballast
US4943763A (en) * 1988-09-08 1990-07-24 Albar, Inc. Ferroresonant transformer with dual outputs
US5912553A (en) * 1997-01-17 1999-06-15 Schott Corporation Alternating current ferroresonant transformer with low harmonic distortion
US7242275B2 (en) * 2003-02-05 2007-07-10 Paper Quality Management Associates Variable inductor
US6856230B2 (en) * 2003-05-27 2005-02-15 Weimin Lu Harmonic filtering circuit with special transformer
US7762048B1 (en) 2005-08-16 2010-07-27 Lecompte Catheleen B Therapeutic hoof boot
US20080074227A1 (en) * 2006-09-21 2008-03-27 Ford Global Technologies, Llc Inductor topologies with substantial common-mode and differential-mode inductance
JP4546439B2 (en) * 2006-10-31 2010-09-15 株式会社デンソー Magnetic circuit of 2-transform DCDC converter
TW201103044A (en) * 2009-07-03 2011-01-16 Magic Technology Co Ltd Inductance component with gap and manufacturing method thereof
AU2010321637B2 (en) * 2009-11-19 2016-12-22 Hydro-Quebec Electrical transformer assembly
US8575779B2 (en) 2010-02-18 2013-11-05 Alpha Technologies Inc. Ferroresonant transformer for use in uninterruptible power supplies
WO2012148512A1 (en) 2011-01-23 2012-11-01 Alpha Technologies Inc. Switching systems and methods for use in uninterruptible power supplies
CA3023301C (en) 2011-05-18 2020-03-10 Hydro-Quebec Ferromagnetic metal ribbon transfer apparatus and method
US8416045B2 (en) * 2011-06-27 2013-04-09 Onyxip, Inc. Magnetic power converter
KR101241564B1 (en) * 2011-08-04 2013-03-11 전주대학교 산학협력단 Couple inductor, Couple transformer and Couple inductor-transformer
US9234916B2 (en) 2012-05-11 2016-01-12 Alpha Technologies Inc. Status monitoring cables for generators
KR102098094B1 (en) * 2012-11-20 2020-05-29 엘지이노텍 주식회사 Integral transfomer
CN104051138B (en) * 2013-03-15 2016-05-04 艾默生网络能源***北美公司 Transformer
DE102014107829B4 (en) * 2014-06-04 2020-07-30 Michael Riedel Transformatorenbau Gmbh Inductance and manufacturing processes therefor and modular system
US9815594B2 (en) * 2014-10-15 2017-11-14 Abb Schweiz Ag Tank for electrical equipment
EP3224840B1 (en) * 2014-11-25 2022-08-10 Aperam Basic module for magnetic core of an electrical transformer, magnetic core comprising said basic module, method for manufacturing said magnetic core, and transformer comprising said magnetic core
DE102014117551B4 (en) * 2014-11-28 2021-06-10 Sma Solar Technology Ag Multiple choke and power converter with a multiple choke
WO2017044970A1 (en) 2015-09-13 2017-03-16 Alpha Technologies Inc. Power control systems and methods
US10381867B1 (en) 2015-10-16 2019-08-13 Alpha Technologeis Services, Inc. Ferroresonant transformer systems and methods with selectable input and output voltages for use in uninterruptible power supplies
US10319505B2 (en) 2016-02-15 2019-06-11 Onyxip, Inc. Electro-magnetic flux valve
FR3050069B1 (en) * 2016-04-08 2018-05-11 Valeo Siemens Eautomotive France Sas MAGNETIC COMPONENT, RESONANT ELECTRIC CIRCUIT, ELECTRIC CONVERTER, AND ELECTRICAL SYSTEM
RU2660835C1 (en) * 2017-05-11 2018-07-10 федеральное государственное бюджетное образовательное учреждение высшего образования "Уфимский государственный авиационный технический университет" Parametric transformer
WO2019014682A1 (en) 2017-07-14 2019-01-17 Alpha Technologies Inc. Voltage regulated ac power supply systems and methods
EP3567612B1 (en) * 2018-05-11 2021-01-27 ABB Power Grids Switzerland AG Magnetic core for an electromagnetic induction device, an electromagnetic induction device comprising the same, and a method of manufacturing a magnetic core
RU2732487C1 (en) * 2020-03-26 2020-09-17 федеральное государственное бюджетное образовательное учреждение высшего образования "Уфимский государственный авиационный технический университет" Parametric orthogonal-flow transformer

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2561855A (en) * 1948-09-23 1951-07-24 Gen Electric Ballast construction
US2668250A (en) * 1950-01-07 1954-02-02 Gen Electric Combined low reactance autotransformer and ballast reactor
US2664541A (en) * 1950-11-24 1953-12-29 Gen Electric Electric ballast
US2630478A (en) * 1950-12-06 1953-03-03 Gen Electric Laminated magnetic core for fluorescent ballast systems
US2706271A (en) * 1951-10-31 1955-04-12 Raytheon Mfg Co Voltage regulators
GB1050605A (en) * 1961-09-21
US3546571A (en) * 1968-06-21 1970-12-08 Varo Constant voltage ferroresonant transformer utilizing unequal area core structure
US3579088A (en) * 1969-04-08 1971-05-18 Taylor C Fletcher Ferroresonant transformer with controllable flux
US3584290A (en) * 1969-06-24 1971-06-08 Westinghouse Electric Corp Regulating and filtering transformer

Also Published As

Publication number Publication date
FR2134409B1 (en) 1976-08-06
NL7205473A (en) 1972-10-25
BE782437A (en) 1972-10-23
IT953694B (en) 1973-08-10
JPS5247535B1 (en) 1977-12-03
CA962346A (en) 1975-02-04
JPS5344650B1 (en) 1978-11-30
FR2134409A1 (en) 1972-12-08
US3686561A (en) 1972-08-22
BR7202223D0 (en) 1973-08-09
GB1385224A (en) 1975-02-26

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