JPS645395A - Change-over device for motor - Google Patents
Change-over device for motorInfo
- Publication number
- JPS645395A JPS645395A JP62157681A JP15768187A JPS645395A JP S645395 A JPS645395 A JP S645395A JP 62157681 A JP62157681 A JP 62157681A JP 15768187 A JP15768187 A JP 15768187A JP S645395 A JPS645395 A JP S645395A
- Authority
- JP
- Japan
- Prior art keywords
- avaf
- motor
- change
- transformer
- equipment
- 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
Abstract
PURPOSE:To regulate voltage reduction, and improve plant controllability, and reduce a setting space, and reduce a cost, by using a transformer set previously at an AVAF equipment, also for a multipurpose equipment. CONSTITUTION:A power source fed to an AVAF 1 when a motor 4 is rotational- frequency-controlled by the AVAF equipment 1, is stepped down to voltage accommodated to the AVAF 1 by an incoming transformer 2 through a general power bus line. The output of the AVAF 1 is stepped up to voltage accommodated to the motor 4, by a load side transformer 3. In the meantime, for change- over to a general power circuit from the AVAF, a commercial frequency operating breaker 9 is set. When change-over operation to the general power source is performed, then voltage reduction is obtained at the motor 4, and so the load side transformer 3 is provided with a loading time change-over setting tap, and by a controller 7, this tap is permitted to follow up the output state of the AVAF at the time of the operation of the AVAF.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62157681A JPS645395A (en) | 1987-06-26 | 1987-06-26 | Change-over device for motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62157681A JPS645395A (en) | 1987-06-26 | 1987-06-26 | Change-over device for motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS645395A true JPS645395A (en) | 1989-01-10 |
Family
ID=15655061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62157681A Pending JPS645395A (en) | 1987-06-26 | 1987-06-26 | Change-over device for motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS645395A (en) |
-
1987
- 1987-06-26 JP JP62157681A patent/JPS645395A/en active Pending
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