SU669449A1 - Arrangement for overvoltage protection of three-phase bridge converter - Google Patents
Arrangement for overvoltage protection of three-phase bridge converterInfo
- Publication number
- SU669449A1 SU669449A1 SU782565037A SU2565037A SU669449A1 SU 669449 A1 SU669449 A1 SU 669449A1 SU 782565037 A SU782565037 A SU 782565037A SU 2565037 A SU2565037 A SU 2565037A SU 669449 A1 SU669449 A1 SU 669449A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- arrangement
- bridge converter
- phase bridge
- overvoltage protection
- windings
- Prior art date
Links
Landscapes
- Emergency Protection Circuit Devices (AREA)
Description
II
. Изобретете относитс к зашита мсШ-ных пресбразоватепьных установок линий электропередач посто нного тока.. The invention relates to the protection of the MSSh of the prescriptive installation of power lines of direct current.
Известно устройство залиты мостсвых преобразователей, содержащее включенные параплепьно вентипдал резисторы и конЕвК саторы tl| .It is known that the device is filled with bridge converters, which contains paraplepno ventipal resistors and kEveK capacitors tl | .
Недостатком этого устройства , вл5ютс потер мощности в резис1х рах, шунтирующих вентили.The disadvantage of this device is the loss of power in resistive shunt valves.
Наиболее близким к изобретению по технической сущности и достигаемым результатам вл етс устройство зашиты трехфазного мостового преобразовател от перенапр жений, содержащее разр цки- ки, включенные параллельно вентип м и обмоткам питающего .трансформатора J2 The closest to the invention in technical essence and achievable results is a device for protection of a three-phase bridge converter from overvoltages, containing breakers connected in parallel with the vents and windings of the power transformer J2
Недостатком этого устройства вл етс низка надежность, так как оно не обеспечивает прекращени сопровох дак цего тока.A disadvantage of this device is low reliability, since it does not ensure the cessation of tracking current.
Цепь изобретени повышение надежности .The circuit of the invention increased reliability.
22
Дл дости кени этэго устройство дл защиты, содержащее разр дники, .шунтиру- гащие зентили и обмотки питающего трансформатора , снабжено допопнитепьным раз- р дгшком, закгтючен шм между обшей точкой вентилей и обшей точкой шунтирующих их разрсщНИКОЕ в одной из фаз преобразо- ватеп .To achieve this, a protection device containing arresters, shunt zentils and windings of the supply transformer is provided with an additional discharge, closed between the common point of the valves and the common point bypassing them in one of the phases of the transformer.
На чертеже представлена схема устройства зашиты.The drawing shows the scheme of the device sewn.
Оно содержит питающий трансформатор 1, обмотки которого защищены разр дниками 2. Он питает вентипи мостового преобразовател 3, защищенные разр5шниками 4. Вентипи одной из фаз преобразовател It contains a supply transformer 1, the windings of which are protected by arresters 2. It feeds the vents of the bridge converter 3, protected by the arresters 4. Venti one of the phases of the converter
5 защищены последовательно включенными разр дниками 5, междз обшей точкой ко- и общей точкой вентилей включен дополнительный разр дник 6. При возникновении перенапр жений на 5 are protected by series-connected dischargers 5, between the common point and the common point of the gates, an additional discharge circuit 6 is turned on. If overvoltages occur to
0 обмотках питающего трансформатора 1 срабатывают разр дники 2 и так как cotvровождак Б .ий ток в этом, спучае должен переходить через itynesoe значение, он0 windings of the supply transformer 1 trigger 2 and the cotv B is driving, the current in this must pass through the ityneso value, it
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU782565037A SU669449A1 (en) | 1978-01-05 | 1978-01-05 | Arrangement for overvoltage protection of three-phase bridge converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU782565037A SU669449A1 (en) | 1978-01-05 | 1978-01-05 | Arrangement for overvoltage protection of three-phase bridge converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU669449A1 true SU669449A1 (en) | 1979-06-25 |
Family
ID=20742459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU782565037A SU669449A1 (en) | 1978-01-05 | 1978-01-05 | Arrangement for overvoltage protection of three-phase bridge converter |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU669449A1 (en) |
-
1978
- 1978-01-05 SU SU782565037A patent/SU669449A1/en active
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