SU621051A1 - Method of protecting transformer operating with out cut-outs from the side higher voltage - Google Patents
Method of protecting transformer operating with out cut-outs from the side higher voltageInfo
- Publication number
- SU621051A1 SU621051A1 SU772464150A SU2464150A SU621051A1 SU 621051 A1 SU621051 A1 SU 621051A1 SU 772464150 A SU772464150 A SU 772464150A SU 2464150 A SU2464150 A SU 2464150A SU 621051 A1 SU621051 A1 SU 621051A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- outs
- higher voltage
- out cut
- side higher
- transformer operating
- Prior art date
Links
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Transformers For Measuring Instruments (AREA)
Description
Изобретение относ тс к защите электрооборудовани и может быть использовано дл аварийиого отключени трансформаторов подстанций без выключателей на стороне высикго напр жени . The invention relates to the protection of electrical equipment and can be used for emergency shutdown of transformer substations without switches on the high voltage side.
Известен способ зашиты трансформаторов работающих без выключателей а стороне высшего напр жени , при котором на подстанции в случае необходимости аварийного отключени тpaнcфopv}aтopa зш1ускают высокочастотный геиератор , фиксируют высокочастотный сигнал на питающем конце линии, отключают выключатель питающего конца с последующим отключением 1оврежденного трансформатора отделителем П The known method is to protect transformers operating without switches on the higher voltage side, at which a high-frequency geerator is installed at the substation in case of emergency shutdown of the transponder} atopus, the high-frequency signal is fixed at the supply end of the line, the switch of the supply end is disconnected with subsequent shutdown
Недостатком способа вл етс его слож-. ность и высока стоимость аппаратуры дл высокочастотной обработки линии.The disadvantage of the method is its complexity. high cost equipment for high-frequency processing of the line.
Известен .также способ защиты трансформаторов при котором на подстанции с поврежденным трансформаторам устраивают искусственное короткое замыкание, вызывающее по влени сверхтока, фиксируют этот сверхток с помощью защит, установленных на питающем конце линии отключают вьпслючатсль питающего конца, а загем - отделитель трансформатора 2. Этот способ ие требует дорогой и сложной аппаратуры.A method of transformer protection is also known, in which an artificial short circuit is created at a substation with damaged transformers causing an overcurrent occurrence, this supercurrent is fixed by means of protections installed at the supply end of the line and the transformer separator 2 is disconnected. requires expensive and sophisticated equipment.
Однако оборудование подвергаетс воздействию сверхтоков. Кроме того, из-за недостаточной надежности короткозамыкател , особенно в зимних уа ови х, в энергосистемах набпюда ютс случаи отказа короткозамыкателей во вклк чении, что приводит к развитию аварии с т же .лыми последстви ми.However, equipment is exposed to overcurrents. In addition, due to the lack of reliability of short circuits, especially in winter conditions, short circuits fail to connect to power systems, which leads to the development of an accident with the same consequences.
Целью изобретени вл етс повышеиие надежности защиты трансформаторов без выключателей на стороне высщего напр жени при одновременном исключении воздействи сверхтоков на электрооборудование.The aim of the invention is to increase the reliability of protection of transformers without switches on the high voltage side while eliminating the effects of overcurrents on electrical equipment.
Это достигаетс тем, гто в известный способ защиты трансформаторов подстшщни, работающих без вьпслючателей на стороне высшего напр жеии , основанный на отключении линии со стороны питающего кошда с последующим отключением поврежденного трансформатора отделителем, к питающей линии между отделителем и трансформато,ром подключают нагрузку , вызьтающую посто нную составл ющую в токе линии, выдел ют эту посто нную составл юшую на питающем ковде и по по влениюThis is achieved by obtaining a known method of protecting transformers under operation, operating without switches, on the high-voltage side, based on disconnecting the line from the supply side and then disconnecting the damaged transformer to the supply line between the separator and the transformer, the rum is connected to a load component in the current line, allocate this constant component on the power supply box and the appearance of
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772464150A SU621051A1 (en) | 1977-03-21 | 1977-03-21 | Method of protecting transformer operating with out cut-outs from the side higher voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772464150A SU621051A1 (en) | 1977-03-21 | 1977-03-21 | Method of protecting transformer operating with out cut-outs from the side higher voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU621051A1 true SU621051A1 (en) | 1978-08-25 |
Family
ID=20700103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU772464150A SU621051A1 (en) | 1977-03-21 | 1977-03-21 | Method of protecting transformer operating with out cut-outs from the side higher voltage |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU621051A1 (en) |
-
1977
- 1977-03-21 SU SU772464150A patent/SU621051A1/en active
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