SU888259A1 - Device for differential protection of converting plant and circuit for melting glaze ice - Google Patents
Device for differential protection of converting plant and circuit for melting glaze ice Download PDFInfo
- Publication number
- SU888259A1 SU888259A1 SU792709893A SU2709893A SU888259A1 SU 888259 A1 SU888259 A1 SU 888259A1 SU 792709893 A SU792709893 A SU 792709893A SU 2709893 A SU2709893 A SU 2709893A SU 888259 A1 SU888259 A1 SU 888259A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- current
- converter
- model
- installation
- ice melting
- Prior art date
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- Protection Of Transformers (AREA)
Description
(54) УСТРОЙСТВО ДЛЯ ДИФФЕРЕНЦИАЛЬНОЙ ЗАЩИТЫ ПРЕОБРАЗОВАТЕЛЬНОЙ УСТАНОВКИ И КОНТУРА (54) DEVICE FOR DIFFERENTIAL PROTECTION OF TRANSFORMABLE INSTALLATION AND CONTOUR
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Изобретение относитс к релейной защите установок плавки гололеда на проводах линий.электропередачи, питаемых от источника высокого напр жени выпр мленным током.The invention relates to the relay protection of ice melting installations on the wires of electric lines. Electric transmissions fed from a high voltage source by a rectified current.
Известны дифференциальные защиты выпр мительных установок, содержащие комплект трансформаторов тока, установпенных со стороны питани мостового преобразовател , схему сравнени абсолютных значений токов, трансформатор посто нного тока, установленный на выходе преобразовательного моста и выходной орган.The differential protections of rectification plants are known, containing a set of current transformers installed on the supply side of the bridge converter, a circuit for comparing the absolute values of currents, a transformer of direct current installed at the output of the converter bridge, and an output organ.
Известно также устройство. Известное устройство дл защиты преобразовательной установки и контура плавки гололеда обладает существенным недостатком . При его использовании дл защиты установки и контура плавки гололеда необходимо устанавливать трансформаторы посто нного тока в конце каждой линии, на которой предусматриваетс плавка гололеда и прокладывать соединенные про- ПЛАВКИ ГОЛОЛЕДАIt is also known device. The known device for protecting the converter plant and the ice melting contour has a significant disadvantage. When used to protect the installation and ice melting contour, it is necessary to install direct current transformers at the end of each line on which ice melting is intended and to run connected holoids.
вода от них к месту установки схемы сравнени , что усложн ет устройство и делает его зачастую непреемлемым к использованию .water from them to the place of installation of the comparison circuit, which complicates the device and makes it often unsuitable for use.
Наиболее близким по технической сущности к предлагаемому изобретению вл етс устройство дл поперечной дифференциальной защиты параллельных линий электропередачи.The closest to the technical essence of the present invention is a device for the transverse differential protection of parallel power lines.
Однако указанное устройство не мо10 жет быть в чистом виде использовано дл зашиты преобразовательной установки и контура плавки гололеда, так как отсутствует втора аналогична установкуHowever, this device cannot be used in pure form to protect the converter plant and the ice melting contour, since there is no second similar installation.
Целью изобретени вл етс повыще- The aim of the invention is to increase
15 ние надежности защиты преобразовательной установки.15 protection of the converter installation.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792709893A SU888259A1 (en) | 1979-01-10 | 1979-01-10 | Device for differential protection of converting plant and circuit for melting glaze ice |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792709893A SU888259A1 (en) | 1979-01-10 | 1979-01-10 | Device for differential protection of converting plant and circuit for melting glaze ice |
Publications (1)
Publication Number | Publication Date |
---|---|
SU888259A1 true SU888259A1 (en) | 1981-12-07 |
Family
ID=20804013
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU792709893A SU888259A1 (en) | 1979-01-10 | 1979-01-10 | Device for differential protection of converting plant and circuit for melting glaze ice |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU888259A1 (en) |
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1979
- 1979-01-10 SU SU792709893A patent/SU888259A1/en active
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