JPS5631381A - Starting method for three-phase induction motor - Google Patents

Starting method for three-phase induction motor

Info

Publication number
JPS5631381A
JPS5631381A JP10577879A JP10577879A JPS5631381A JP S5631381 A JPS5631381 A JP S5631381A JP 10577879 A JP10577879 A JP 10577879A JP 10577879 A JP10577879 A JP 10577879A JP S5631381 A JPS5631381 A JP S5631381A
Authority
JP
Japan
Prior art keywords
change
over
starting
delta
revolution
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.)
Pending
Application number
JP10577879A
Other languages
Japanese (ja)
Inventor
Hiroshi Aida
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP10577879A priority Critical patent/JPS5631381A/en
Publication of JPS5631381A publication Critical patent/JPS5631381A/en
Pending 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
    • H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
    • H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
    • H02P1/26—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual polyphase induction motor
    • H02P1/32—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual polyphase induction motor by star/delta switching

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor And Converter Starters (AREA)

Abstract

PURPOSE:To change over the Y-DELTA starting of an induction motor at an ideal point by a method wherein the currents of an end ring of a cage type rotor are detected through a noncontact type magnetic current converter. CONSTITUTION:Secondary currents corresponding to the number of revolution by the rotation of a motor flow through an end ring 1 of a cage type rotor, and magnetic flux 5 is generated. The magnetic flux 5 is detected by means of a magnetic current converter 6 installed around the end ring 1, extracted as the change of voltage, and utilized as the change-over signals of a Y-DELTA change-over means for starting. Thus, if the most ideal number of revolution for change-over is previously set from the relationship of torque in case of Y and torque in case of DELTA, starting can be changed over to DELTA from Y when the rotation reaches the number of revolution, and starting can excellently be changed over even when voltage and load change.
JP10577879A 1979-08-20 1979-08-20 Starting method for three-phase induction motor Pending JPS5631381A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10577879A JPS5631381A (en) 1979-08-20 1979-08-20 Starting method for three-phase induction motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10577879A JPS5631381A (en) 1979-08-20 1979-08-20 Starting method for three-phase induction motor

Publications (1)

Publication Number Publication Date
JPS5631381A true JPS5631381A (en) 1981-03-30

Family

ID=14416605

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10577879A Pending JPS5631381A (en) 1979-08-20 1979-08-20 Starting method for three-phase induction motor

Country Status (1)

Country Link
JP (1) JPS5631381A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62217884A (en) * 1986-03-18 1987-09-25 Toshiba Corp Control device for induction motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62217884A (en) * 1986-03-18 1987-09-25 Toshiba Corp Control device for induction motor

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