JPS6464596A - Driving method for induction motor - Google Patents
Driving method for induction motorInfo
- 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
Links
Landscapes
- 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.
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014054177A (en) * | 2012-09-10 | 2014-03-20 | Sandvik Mining & Constr Oy | Mining vehicle |
-
1987
- 1987-08-31 JP JP62218488A patent/JPS6464596A/en active Pending
Cited By (1)
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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