SU534010A1 - Surge protection device on the excitation winding of a synchronous machine with a brushless excitation system - Google Patents
Surge protection device on the excitation winding of a synchronous machine with a brushless excitation systemInfo
- Publication number
- SU534010A1 SU534010A1 SU2029299A SU2029299A SU534010A1 SU 534010 A1 SU534010 A1 SU 534010A1 SU 2029299 A SU2029299 A SU 2029299A SU 2029299 A SU2029299 A SU 2029299A SU 534010 A1 SU534010 A1 SU 534010A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- protection device
- excitation
- synchronous machine
- surge protection
- brushless
- Prior art date
Links
Landscapes
- Protection Of Generators And Motors (AREA)
Description
При пуске синхронного двигател , до достижени его ротором подсинхронной частоты вращени , питание на обмотку возбуждени бесщеточного возбудител 1 не подаетс , следовательно , ток в обмотке реле 3 отсутствует и его контакт 2 в защитной цепи обмотки возбуждени 5 разомкнут. При достижении э. д. с. в обмотке возбуждени 5 величины напр жени пробо стабилитрона 7 тиристор 4 открываетс и напр жение на обмотке возбуждени 5 синхронного двигател снижаетс .When the synchronous motor starts, before the rotor reaches the subsynchronous rotation frequency, the excitation winding of the brushless exciter 1 is not energized, therefore, there is no current in the winding of relay 3 and its contact 2 is open in the protective circuit of the excitation winding 5. Upon reaching e. d. in the excitation winding 5 of the voltage of the breakdown of the zener diode 7, the thyristor 4 opens and the voltage across the excitation winding 5 of the synchronous motor decreases.
После достижени ротором подсинхронной частоты вращени э. д. с. обмотки возбуждени 5 становитс меньше напр жени пробо стабилитрона 7 и тиристор 4 не открываетс . Тогда подаетс посто нный ток на обмотку возбуждени 1, напр жение трехфазного мостового выпр мител 8, питающего обмотку реле 3, возрастает.After the rotor reaches the subsynchronous rotation frequency e. d. field winding 5 becomes less than voltage breakdown of zener diode 7 and thyristor 4 does not open. Then a constant current is applied to the field winding 1, the voltage of the three-phase bridge rectifier 8, which supplies the relay 3 winding, increases.
Реле 3 срабатывает и замыкает контакт 2, который, тем самым, исключает работу защитной цепи при работе двигател в синхронном режиме.Relay 3 is activated and closes the contact 2, which, thereby, eliminates the work of the protective circuit when the engine is running in synchronous mode.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2029299A SU534010A1 (en) | 1974-06-03 | 1974-06-03 | Surge protection device on the excitation winding of a synchronous machine with a brushless excitation system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2029299A SU534010A1 (en) | 1974-06-03 | 1974-06-03 | Surge protection device on the excitation winding of a synchronous machine with a brushless excitation system |
Publications (1)
Publication Number | Publication Date |
---|---|
SU534010A1 true SU534010A1 (en) | 1976-10-30 |
Family
ID=20586221
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU2029299A SU534010A1 (en) | 1974-06-03 | 1974-06-03 | Surge protection device on the excitation winding of a synchronous machine with a brushless excitation system |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU534010A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU169659U1 (en) * | 2016-08-24 | 2017-03-28 | Общество с ограниченной ответственностью Лысьвенский завод тяжёлого электрического машиностроения "Привод" (ООО "Электротяжмаш-Привод") | DEVICE FOR PROTECTION AGAINST VOLTAGE IN THE WINDING OF EXCITATION OF A SYNCHRONOUS MACHINE WITH A BRUSHLESS-FREE EXCITATION SYSTEM |
RU190081U1 (en) * | 2018-12-04 | 2019-06-18 | Публичное акционерное общество "Транснефть" (ПАО "Транснефть") | Surge protection device on the excitation winding of a synchronous machine with a brushless excitation system |
-
1974
- 1974-06-03 SU SU2029299A patent/SU534010A1/en active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU169659U1 (en) * | 2016-08-24 | 2017-03-28 | Общество с ограниченной ответственностью Лысьвенский завод тяжёлого электрического машиностроения "Привод" (ООО "Электротяжмаш-Привод") | DEVICE FOR PROTECTION AGAINST VOLTAGE IN THE WINDING OF EXCITATION OF A SYNCHRONOUS MACHINE WITH A BRUSHLESS-FREE EXCITATION SYSTEM |
RU190081U1 (en) * | 2018-12-04 | 2019-06-18 | Публичное акционерное общество "Транснефть" (ПАО "Транснефть") | Surge protection device on the excitation winding of a synchronous machine with a brushless excitation system |
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