JPS6464596A - Driving method for induction motor - Google Patents

Driving method for induction motor

Info

Publication number
JPS6464596A
JPS6464596A JP62218488A JP21848887A JPS6464596A JP S6464596 A JPS6464596 A JP S6464596A JP 62218488 A JP62218488 A JP 62218488A JP 21848887 A JP21848887 A JP 21848887A JP S6464596 A JPS6464596 A JP S6464596A
Authority
JP
Japan
Prior art keywords
motor
connection
contactors
changing
constant
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
JP62218488A
Other languages
Japanese (ja)
Inventor
Toshitaka Yoshida
Tsuneo Kume
Toshihiro Sawa
Akihide Sato
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.)
Yaskawa Electric Corp
Original Assignee
Yaskawa Electric Manufacturing Co 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 Yaskawa Electric Manufacturing Co Ltd filed Critical Yaskawa Electric Manufacturing Co Ltd
Priority to JP62218488A priority Critical patent/JPS6464596A/en
Publication of JPS6464596A publication Critical patent/JPS6464596A/en
Pending legal-status Critical Current

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  • Control Of Ac Motors In General (AREA)

Abstract

PURPOSE:To expand the constant-output range of an apparatus by using an inverter with the same capacity through changing the connection mode of stator windings from one to another. CONSTITUTION:The connection of windings of a motor 1 is changed by switching of contactors 3, 4 from each other. That is, when said contactors 3 and 4 are turned ON and OFF respectively, said motor 1 is Y-connected and -connected, when the contactors 3 and 4 are set to OFF and ON respectively. When Y-connection is carried out in case of the number of revolutions (n1), voltage can be increased 3<1/2> times and current becomes 1/3<1/2> times as compared with those at the time of Y-connection, if the magnetic flux density of the motor is kept constant. Therefore, it is possible to realize changing the capacity of a motor without changing the capacity of an inverter. On the other hand, when the number of revolutions is (n2) or more, it is possible to -connect the motor and to specify its constant output. That is, the constant output range of said motor can be expanded 3<1/2> times.
JP62218488A 1987-08-31 1987-08-31 Driving method for induction motor Pending JPS6464596A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62218488A JPS6464596A (en) 1987-08-31 1987-08-31 Driving method for induction motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62218488A JPS6464596A (en) 1987-08-31 1987-08-31 Driving method for induction motor

Publications (1)

Publication Number Publication Date
JPS6464596A true JPS6464596A (en) 1989-03-10

Family

ID=16720713

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62218488A Pending JPS6464596A (en) 1987-08-31 1987-08-31 Driving method for induction motor

Country Status (1)

Country Link
JP (1) JPS6464596A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014054177A (en) * 2012-09-10 2014-03-20 Sandvik Mining & Constr Oy Mining vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014054177A (en) * 2012-09-10 2014-03-20 Sandvik Mining & Constr Oy Mining vehicle

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