CA2131971A1 - Motor control system and apparatus for providing desired three-phase voltage therein using a main transformer energized through an auto transformer - Google Patents

Motor control system and apparatus for providing desired three-phase voltage therein using a main transformer energized through an auto transformer

Info

Publication number
CA2131971A1
CA2131971A1 CA2131971A CA2131971A CA2131971A1 CA 2131971 A1 CA2131971 A1 CA 2131971A1 CA 2131971 A CA2131971 A CA 2131971A CA 2131971 A CA2131971 A CA 2131971A CA 2131971 A1 CA2131971 A1 CA 2131971A1
Authority
CA
Canada
Prior art keywords
control system
motor control
transformer
phase voltage
main transformer
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.)
Granted
Application number
CA2131971A
Other languages
French (fr)
Other versions
CA2131971C (en
Inventor
Donald W. Owen
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.)
Southwest Electric Co
Original Assignee
Southwest Electric Co
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 Southwest Electric Co filed Critical Southwest Electric Co
Publication of CA2131971A1 publication Critical patent/CA2131971A1/en
Application granted granted Critical
Publication of CA2131971C publication Critical patent/CA2131971C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/02—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using supply voltage with constant frequency and variable amplitude
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F30/00—Fixed transformers not covered by group H01F19/00
    • H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
    • H01F30/12—Two-phase, three-phase or polyphase transformers

Abstract

Abstract of the Disclosure A motor control system and apparatus for providing a desired three-phase voltage in the motor control system include: (1) a main transformer and components that are rated for one nominal voltage input, and (2) a commonly housed input transformer that transforms a different voltage power source to provide the nominal voltage input to the main transformer.
CA002131971A 1993-09-20 1994-09-12 Motor control system and apparatus for providing desired three-phase voltage therein using a main transformer energized through an auto transformer Expired - Fee Related CA2131971C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/124,292 US5449991A (en) 1993-09-20 1993-09-20 Motor control system and apparatus for providing desired three-phase voltage therein using a main transformer energized through an autotransformer
US124,292 1993-09-20

Publications (2)

Publication Number Publication Date
CA2131971A1 true CA2131971A1 (en) 1995-03-21
CA2131971C CA2131971C (en) 1999-02-16

Family

ID=22413979

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002131971A Expired - Fee Related CA2131971C (en) 1993-09-20 1994-09-12 Motor control system and apparatus for providing desired three-phase voltage therein using a main transformer energized through an auto transformer

Country Status (3)

Country Link
US (1) US5449991A (en)
CA (1) CA2131971C (en)
GB (1) GB2282488A (en)

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US7236683B2 (en) * 2001-11-15 2007-06-26 Macrovision Corporation Method and apparatus for providing or enhancing copy protection by adding selected negative-going and positive-going pulses in a video signal HBI
US7525264B2 (en) * 2005-07-26 2009-04-28 Halliburton Energy Services, Inc. Shunt regulation apparatus, systems, and methods
JP4918795B2 (en) * 2006-03-16 2012-04-18 富士電機株式会社 Power electronics equipment
US7729135B1 (en) * 2007-05-10 2010-06-01 Fairchild Semiconductor Corporation Power converter using a single tapped transformer for multiple ranges of input voltage
US8600695B2 (en) * 2009-12-31 2013-12-03 Veris Industries, Llc Phase canceling current transducer
FI20100144A0 (en) * 2010-04-09 2010-04-09 Salcomp Oyj Arrangement and method for reducing capacitive current
US9424975B2 (en) 2013-08-23 2016-08-23 Veris Industries, Llc Split core transformer with self-aligning cores
US9588148B2 (en) 2014-01-23 2017-03-07 Veris Industries, Llc Input circuit for current transformer
US9607749B2 (en) 2014-01-23 2017-03-28 Veris Industries, Llc Split core current transformer
RU185695U1 (en) * 2017-12-22 2018-12-14 Аркадий Анатольевич Степанов ECONOMIC FEEDBACK INDUCTION INVERTER

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Also Published As

Publication number Publication date
CA2131971C (en) 1999-02-16
GB2282488A (en) 1995-04-05
GB9418197D0 (en) 1994-10-26
US5449991A (en) 1995-09-12

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed