JPS55103073A - Thyristor switch - Google Patents
Thyristor switchInfo
- Publication number
- JPS55103073A JPS55103073A JP913279A JP913279A JPS55103073A JP S55103073 A JPS55103073 A JP S55103073A JP 913279 A JP913279 A JP 913279A JP 913279 A JP913279 A JP 913279A JP S55103073 A JPS55103073 A JP S55103073A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- load
- current
- gate
- thyristors
- 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.)
- Granted
Links
Landscapes
- Power Conversion In General (AREA)
- Thyristor Switches And Gates (AREA)
Abstract
PURPOSE: To prevent thyristors from damage due to ignition scattering when an overvoltage is applied in the turn-off of the thyristors, by preventing the gate signal of a thyristor switch from being blocked when a load current is zero or almost zero.
CONSTITUTION: When an operation signal RUN is applied to a gate control circuit 9, gate signals G-1, G-2 are generated to supply AC power to a load 3. When the AC power is supplied to the load, a current level detector 8 produces a signal which indicates whether the load current I is in a prescribed level range. The gate signals G-1, G-2 are not blocked but continued until the time for more than detection level if the output IL of the current level detector 8 is a signal below the detection level when the operation signal is stopped.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP913279A JPS55103073A (en) | 1979-01-31 | 1979-01-31 | Thyristor switch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP913279A JPS55103073A (en) | 1979-01-31 | 1979-01-31 | Thyristor switch |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55103073A true JPS55103073A (en) | 1980-08-06 |
JPS626417B2 JPS626417B2 (en) | 1987-02-10 |
Family
ID=11712097
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP913279A Granted JPS55103073A (en) | 1979-01-31 | 1979-01-31 | Thyristor switch |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55103073A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04102512U (en) * | 1991-01-31 | 1992-09-03 | 昭和電線電纜株式会社 | multi-pair cable |
WO2016110958A1 (en) * | 2015-01-07 | 2016-07-14 | 東芝三菱電機産業システム株式会社 | Static switch |
-
1979
- 1979-01-31 JP JP913279A patent/JPS55103073A/en active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04102512U (en) * | 1991-01-31 | 1992-09-03 | 昭和電線電纜株式会社 | multi-pair cable |
WO2016110958A1 (en) * | 2015-01-07 | 2016-07-14 | 東芝三菱電機産業システム株式会社 | Static switch |
US9991883B2 (en) | 2015-01-07 | 2018-06-05 | Toshiba Mitsubishi-Electric Industrial Systems Corporation | Static switch |
EP3244538A4 (en) * | 2015-01-07 | 2018-08-15 | Toshiba Mitsubishi-Electric Industrial Systems Corporation | Static switch |
Also Published As
Publication number | Publication date |
---|---|
JPS626417B2 (en) | 1987-02-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS55103073A (en) | Thyristor switch | |
JPS5232660A (en) | Semiconductor switch circuit | |
JPS5438513A (en) | Controller for ac thyristor motor | |
JPS54111647A (en) | Protective relay apparatus for transformer | |
JPS51140150A (en) | Safeguard for alternating current-alternating current converter | |
JPS55100078A (en) | Protection system of inverter | |
JPS57162964A (en) | Protecting device for gate turn-off thyristor | |
JPS5445741A (en) | Control system of inverter | |
JPS5574387A (en) | Generation-braking device for induction motor | |
JPS5668276A (en) | Inverter output decreasing system | |
JPS53146151A (en) | Protective system for dc switching circuit | |
JPS5489216A (en) | Dc power unit | |
JPS5641774A (en) | Method and device for operating power source device using inverter device | |
JPS5425444A (en) | Protective circuit | |
JPS5419125A (en) | Misoperation preventive circuit for power inverter | |
JPS5288747A (en) | Protecting system for inverter | |
JPS5688667A (en) | Protective device for gate turn-off thyristor | |
JPS5297642A (en) | Malfunction prevention circuit | |
JPS5495347A (en) | Appartus for preventing burning of motor field coil | |
JPS5449548A (en) | Method of protecting induction motor | |
JPS5329652A (en) | Solid state realy circuit | |
JPS57126271A (en) | Protecting method for gate turn-off thyristor power converter | |
JPS5439563A (en) | Protective device for thyristor converter | |
JPS5317923A (en) | Electric current source opening device of direct current chopper | |
JPS5438543A (en) | Semiconductor breaker |