JPS54150626A - Scherbius device - Google Patents
Scherbius deviceInfo
- Publication number
- JPS54150626A JPS54150626A JP5956478A JP5956478A JPS54150626A JP S54150626 A JPS54150626 A JP S54150626A JP 5956478 A JP5956478 A JP 5956478A JP 5956478 A JP5956478 A JP 5956478A JP S54150626 A JPS54150626 A JP S54150626A
- Authority
- JP
- Japan
- Prior art keywords
- power
- motor
- breaker
- turned
- scr
- 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 prevent the destruction of device by taking measures to meet an instantaneous power cut-off and an instantaneous phase lack separately.
CONSTITUTION: The wound-rotor type induction motor IM is connected to the Graetz rectifier circuit SR and the inverter circuit SCR. When power is instantaneously cut off, the gate of inverter SCR is turned down by a signal. When the power is recovered, the secondary side of motor is shorted with the resistance R2 by giving a signal to the thyristor S2 in order to prevent the destruction of semiconductor by a transient high voltage. When the motor speed is less than the minimum speed of the Scherbius control range, the breaker S3 is opened by a command, a high resistance R3 is inserted in the secondary side of motor to perform a resistance starting. When an instantaneous phase lack is produced, the power breaker S1 is turned off, the thyristor S2 is turned on, the gate of inverter SCR is turned down by signals respectively, and a OFF command is provided to the breaker S3 at the same time.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5956478A JPS54150626A (en) | 1978-05-19 | 1978-05-19 | Scherbius device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5956478A JPS54150626A (en) | 1978-05-19 | 1978-05-19 | Scherbius device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54150626A true JPS54150626A (en) | 1979-11-27 |
Family
ID=13116851
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5956478A Pending JPS54150626A (en) | 1978-05-19 | 1978-05-19 | Scherbius device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54150626A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015142398A (en) * | 2014-01-27 | 2015-08-03 | 株式会社東芝 | Excessive voltage prevention device and current adjustment circuit |
-
1978
- 1978-05-19 JP JP5956478A patent/JPS54150626A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015142398A (en) * | 2014-01-27 | 2015-08-03 | 株式会社東芝 | Excessive voltage prevention device and current adjustment circuit |
EP2899824B1 (en) * | 2014-01-27 | 2021-08-18 | Kabushiki Kaisha Toshiba | Over-voltage prevention device and current rectifying circuit |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS54150626A (en) | Scherbius device | |
JPS51142983A (en) | Scr | |
JPS54113038A (en) | Dc power supply circuit | |
JPS52131139A (en) | Three phase ac voltage control circuit | |
JPS5783A (en) | Starting device at pumping-up type electric power station | |
JPS5232660A (en) | Semiconductor switch circuit | |
JPS5713991A (en) | Operation system of induction motor | |
JPS54113832A (en) | Inverter device | |
JPS5288753A (en) | Static type voltage regulating system | |
JPS5262624A (en) | Protective device for inverter | |
JPS55109187A (en) | Polyphase thyristor motor controller | |
JPS5568899A (en) | Speed-control method for wound-rotor induction motor with switching circuit | |
JPS57151275A (en) | Inverter switching device | |
JPS5579695A (en) | Speed controller for dc motor | |
JPS5282189A (en) | Semiconductor device | |
JPS5688682A (en) | Slow starter for three phase induction motor | |
JPS57126271A (en) | Protecting method for gate turn-off thyristor power converter | |
JPS6416279A (en) | Starter for single-phase induction motor | |
JPS54113833A (en) | Power converter | |
JPS52122857A (en) | Current control circuit | |
JPS54115724A (en) | Current limiting method for motor | |
JPS5298922A (en) | Controlling device of dc motor | |
JPS5577357A (en) | Wound-rotor type three-phase induction motor | |
JPS531017A (en) | Protective circuit | |
JPS5419117A (en) | Thyristor start control system for pumping-up power station |