JPS5480513A - Dc braking system for ac motor - Google Patents
Dc braking system for ac motorInfo
- Publication number
- JPS5480513A JPS5480513A JP14835277A JP14835277A JPS5480513A JP S5480513 A JPS5480513 A JP S5480513A JP 14835277 A JP14835277 A JP 14835277A JP 14835277 A JP14835277 A JP 14835277A JP S5480513 A JPS5480513 A JP S5480513A
- Authority
- JP
- Japan
- Prior art keywords
- motor
- inverter
- braking
- stationary member
- moving member
- 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
- Stopping Of Electric Motors (AREA)
Abstract
PURPOSE: To raise a braking force, by suppling a direct current to the three-phase lines of an AC motor when the motor is braked.
CONSTITUTION: A selector circuit 18 is provided to apply a gate signal to three of electric valves S1∼S6 of an inverter in accordance with a braking instruction DB. A changeover swtich 19 is so installed that a moving member is shifted from a stationary member A to another stationary member B in accordance with the braking instruction DB. In the stationary operation, the moving member of the changeover switch 19 is located on the stationary member A and the electric valves S1∼S6 of the inverter are closed by a pulse signal supplied from a distributor 12. When the braking insturction is applied, the moving member of the changeover switch 19 is shifted to the stationary member B and only the electrc valves S1, S5, S6 of the inverter are turned on by the selector circuit 18. Therefore, the direct current is supplied to the three-phase windings of the motor 10 to raise the braking force.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14835277A JPS5480513A (en) | 1977-12-10 | 1977-12-10 | Dc braking system for ac motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14835277A JPS5480513A (en) | 1977-12-10 | 1977-12-10 | Dc braking system for ac motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5480513A true JPS5480513A (en) | 1979-06-27 |
Family
ID=15450832
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14835277A Pending JPS5480513A (en) | 1977-12-10 | 1977-12-10 | Dc braking system for ac motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5480513A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5970194A (en) * | 1982-10-13 | 1984-04-20 | Hitachi Ltd | Controlling method for induction motor |
-
1977
- 1977-12-10 JP JP14835277A patent/JPS5480513A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5970194A (en) * | 1982-10-13 | 1984-04-20 | Hitachi Ltd | Controlling method for induction motor |
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