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JPS5622587A - Driving method for induction motor - Google Patents

Driving method for induction motor

Info

Publication number
JPS5622587A
JPS5622587A JP9558979A JP9558979A JPS5622587A JP S5622587 A JPS5622587 A JP S5622587A JP 9558979 A JP9558979 A JP 9558979A JP 9558979 A JP9558979 A JP 9558979A JP S5622587 A JPS5622587 A JP S5622587A
Authority
JP
Japan
Prior art keywords
frequency
power source
induction motor
variable frequency
frequency power
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
JP9558979A
Other languages
Japanese (ja)
Inventor
Kenta Yoshii
Mikiro Kiuchi
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel Ltd
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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP9558979A priority Critical patent/JPS5622587A/en
Publication of JPS5622587A publication Critical patent/JPS5622587A/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
    • H02P1/54—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting two or more dynamo-electric motors

Landscapes

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

Abstract

PURPOSE:To reduce the capacity of a variable frequency power source by a system wherein the output frequency of the variable frequency power source which is driving induction motors at stationary operation frequency is reduced to an allowable level previously specified, and another induction motor is thrown in at said frequency level. CONSTITUTION:When induction motors 5-1-5-(n-1) are being subject to the power at f0 frequency from a variable frequency power source 1, the output frequency of the variable frequency power source 1 lowers to fs when starting instructions m-n for an induction motor 5-n are given. When the output frequency becomes fs, switch making instructions S are put out from a frequency comparison circuit 4, a switch 6-n is closed, and the induction motor 5-n is connected to the variable frequency power source 1. When the speed of revolution of the induction motor 5-n increases to ns, that is the speed of revolution corresponding to fs, the output frequency of the variable frequency power source 1 is automatically controlled to fo, that is the original frequency.
JP9558979A 1979-07-28 1979-07-28 Driving method for induction motor Pending JPS5622587A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9558979A JPS5622587A (en) 1979-07-28 1979-07-28 Driving method for induction motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9558979A JPS5622587A (en) 1979-07-28 1979-07-28 Driving method for induction motor

Publications (1)

Publication Number Publication Date
JPS5622587A true JPS5622587A (en) 1981-03-03

Family

ID=14141760

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9558979A Pending JPS5622587A (en) 1979-07-28 1979-07-28 Driving method for induction motor

Country Status (1)

Country Link
JP (1) JPS5622587A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57136334U (en) * 1981-02-19 1982-08-25
JPS61274787A (en) * 1985-05-29 1986-12-04 Agency Of Ind Science & Technol Method for purifying treatment of colored organic impurity-containing aqueous solution

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5199216A (en) * 1975-02-28 1976-09-01 Hitachi Ltd JIKIDORAMUSOCHINIOKERU JUDODENDOKISHIDOSEIGYOHOHO

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5199216A (en) * 1975-02-28 1976-09-01 Hitachi Ltd JIKIDORAMUSOCHINIOKERU JUDODENDOKISHIDOSEIGYOHOHO

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57136334U (en) * 1981-02-19 1982-08-25
JPS642737Y2 (en) * 1981-02-19 1989-01-24
JPS61274787A (en) * 1985-05-29 1986-12-04 Agency Of Ind Science & Technol Method for purifying treatment of colored organic impurity-containing aqueous solution
JPH0261320B2 (en) * 1985-05-29 1990-12-19 Kogyo Gijutsu Incho

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