JPS5489212A - Scherbius device - Google Patents
Scherbius deviceInfo
- Publication number
- JPS5489212A JPS5489212A JP15993577A JP15993577A JPS5489212A JP S5489212 A JPS5489212 A JP S5489212A JP 15993577 A JP15993577 A JP 15993577A JP 15993577 A JP15993577 A JP 15993577A JP S5489212 A JPS5489212 A JP S5489212A
- Authority
- JP
- Japan
- Prior art keywords
- overvoltage
- power
- motor
- turning
- gto
- 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 limit the overvoltage, occurring when the power source service recovers from its interruption, to a value corresponding to the slip, by providing in each secondary phase of the induction motor an overvoltage control circuit including a thyristor with a self-turning -off function.
CONSTITUTION: The secondary power in an induction motor 12 is returned to the power source bus 10 by a converting device 16, and speed control for the motor 12 is effected by controlling said power. In the secondary side of the motor 12 there is provided an overvoltage suppressing circuit 22 including thyristor GTO with a self- turning-off function. Thus, upon power service interruption, energy of the motor by-passes to the overvoltage circuit 22 by the turning-on of GTO and SCR caused by a sequence circuit 20, and the corresponding current is detected by a detector SH to turn off GTO when the detected current becomes less than a certain value and accommodate the recovering of power service, so that the overvoltage induced in the secondary side can be limited to a value corresponding to the slip 1.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15993577A JPS5489212A (en) | 1977-12-27 | 1977-12-27 | Scherbius device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15993577A JPS5489212A (en) | 1977-12-27 | 1977-12-27 | Scherbius device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5489212A true JPS5489212A (en) | 1979-07-16 |
Family
ID=15704360
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15993577A Pending JPS5489212A (en) | 1977-12-27 | 1977-12-27 | Scherbius device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5489212A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05278155A (en) * | 1992-04-03 | 1993-10-26 | Nippondenso Co Ltd | Resin film-lined plate |
-
1977
- 1977-12-27 JP JP15993577A patent/JPS5489212A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05278155A (en) * | 1992-04-03 | 1993-10-26 | Nippondenso Co Ltd | Resin film-lined plate |
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