JPS5460431A - Gate control system for dc transmission - Google Patents
Gate control system for dc transmissionInfo
- Publication number
- JPS5460431A JPS5460431A JP12568877A JP12568877A JPS5460431A JP S5460431 A JPS5460431 A JP S5460431A JP 12568877 A JP12568877 A JP 12568877A JP 12568877 A JP12568877 A JP 12568877A JP S5460431 A JPS5460431 A JP S5460431A
- Authority
- JP
- Japan
- Prior art keywords
- pulse
- gate control
- bypass switch
- gate
- normal operation
- 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
- Direct Current Feeding And Distribution (AREA)
- Inverter Devices (AREA)
Abstract
PURPOSE: To prevent any shorting during the normal operation by ensuring a lag angle of more than 120° in the gate control pulse while the bypass switch is closed with an auxiliary contact thereof added to a exciting circuit of the auxiliary relay.
CONSTITUTION: A thyristor bridge 1 invariably generates a gate pulse with an automatic pulse phase shifting device 19 through a control voltage determined by a contact current controller 20 while it is controlled by ON or OFF pulse passing a gate control circuit 18 and a pulse amplifier 17. An auxiliary contact 30' of a bypass switch is added to an exciting circuit of a auxiliary relay 24 to ensure a lag angle of more than 120° in the gate control pulse while the bypass switch is closed. In this manner, any shorting can be checked during the normal operation
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12568877A JPS5460431A (en) | 1977-10-21 | 1977-10-21 | Gate control system for dc transmission |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12568877A JPS5460431A (en) | 1977-10-21 | 1977-10-21 | Gate control system for dc transmission |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5460431A true JPS5460431A (en) | 1979-05-15 |
JPS5535943B2 JPS5535943B2 (en) | 1980-09-17 |
Family
ID=14916216
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12568877A Granted JPS5460431A (en) | 1977-10-21 | 1977-10-21 | Gate control system for dc transmission |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5460431A (en) |
-
1977
- 1977-10-21 JP JP12568877A patent/JPS5460431A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5535943B2 (en) | 1980-09-17 |
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