JPS5563585A - Operation control device for group of ac electric motor - Google Patents
Operation control device for group of ac electric motorInfo
- Publication number
- JPS5563585A JPS5563585A JP13589678A JP13589678A JPS5563585A JP S5563585 A JPS5563585 A JP S5563585A JP 13589678 A JP13589678 A JP 13589678A JP 13589678 A JP13589678 A JP 13589678A JP S5563585 A JPS5563585 A JP S5563585A
- Authority
- JP
- Japan
- Prior art keywords
- power source
- frequency power
- variable frequency
- group
- groups
- 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
- Motor And Converter Starters (AREA)
Abstract
PURPOSE: To reduce capacity of an acceleration power source for AC electric motors by dividing them into plural groups, raising frequency of plural variable frequency power source gradually at the time of starting of the groups of electric motors, and also, at the same time, by connecting the groups of the electric motors to their respective variable frequency power sources alternately.
CONSTITUTION: When AC electric motors 2-1∼2-2m are started, at first, a variable frequency power source 1-2 is operated at a frequency f1 and a variable frequency power source 1-3 is operated at a frequency f2 (provided, f1<f2), and a group 1 (2-1∼2-m) is connected to a variable frequency power source 1-2. And at the time when the group 1 is synchronized with the frequency f1, the group 1 is switched to the variable frequency power source 1-3, and at the same time, a group 2[2-(m+1)∼2-2m]is connected to a variable frequency power source 1-2. From that time afterward, frequencies of the variable frequency power sources 1-2 and 1-3 are raised in order on step-by-step basis, the groups 1 and 2 are alternately connected for acceleration, and when they reached the rated r.p.m., they are connected to the rated frequency power source 1.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13589678A JPS5563585A (en) | 1978-11-06 | 1978-11-06 | Operation control device for group of ac electric motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13589678A JPS5563585A (en) | 1978-11-06 | 1978-11-06 | Operation control device for group of ac electric motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5563585A true JPS5563585A (en) | 1980-05-13 |
Family
ID=15162337
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13589678A Pending JPS5563585A (en) | 1978-11-06 | 1978-11-06 | Operation control device for group of ac electric motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5563585A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017011873A (en) * | 2015-06-22 | 2017-01-12 | 東芝三菱電機産業システム株式会社 | Drive device for hysteresis motor |
-
1978
- 1978-11-06 JP JP13589678A patent/JPS5563585A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017011873A (en) * | 2015-06-22 | 2017-01-12 | 東芝三菱電機産業システム株式会社 | Drive device for hysteresis motor |
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