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 system

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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
Application number
SU2029299A
Other languages
Russian (ru)
Inventor
Виктор Дмитриевич Дудин
Николай Александрович Лазарьков
Павел Васильевич Рожков
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to SU2029299A priority Critical patent/SU534010A1/en
Application granted granted Critical
Publication of SU534010A1 publication Critical patent/SU534010A1/en

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  • 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)

1.Глебов И. А., Логинов С. И. «Системы возбуждени  и регулировани  синхронных двигателей , Л., «Энерги , 1972 (аналог).1.Glebov I.A., Loginov S.I. "Systems of excitation and control of synchronous motors, L.," Energie, 1972 (analog). 2.Авт. св. № 379020, Н 02К 9/36, 18.04.73 (прототип).2. Avt. St. No. 379020, N 02K 9/36, 04/18/73 (prototype).
SU2029299A 1974-06-03 1974-06-03 Surge protection device on the excitation winding of a synchronous machine with a brushless excitation system SU534010A1 (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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