SU1272391A1 - Control chamber of transmitter of high-frequency differential - phase protection - Google Patents
Control chamber of transmitter of high-frequency differential - phase protection Download PDFInfo
- Publication number
- SU1272391A1 SU1272391A1 SU853833283A SU3833283A SU1272391A1 SU 1272391 A1 SU1272391 A1 SU 1272391A1 SU 853833283 A SU853833283 A SU 853833283A SU 3833283 A SU3833283 A SU 3833283A SU 1272391 A1 SU1272391 A1 SU 1272391A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- output
- comparison unit
- current filter
- sequence current
- input
- Prior art date
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- Emergency Protection Circuit Devices (AREA)
Abstract
Изобретение относитс к области электротехники , а именно, к релейной защите электроустановки, в частности к защите линий электропередачи высокого напр жени . Цель изобретени - повыщение достоверности информации об аварийном состо нии линии электропередачи при внещних коротких замыкани х. Устройство содержит фильтр 1 тока пр мой последовательности и фильтр 2 тока обратной последовательности , входами присоединенные к линии электропередачи . Выходы фильтров 1 и 2 присоединены к входам блока 3 сравнени , выходы последнего присоединены к управл ющим входам ключей 4 и 5. Ключи 4 и 5 подключены к выходам фильтров 1 и 2 тока пр мой и обратной последовательности. При несимметричном коротком замыкании в зоне действи защиты есть сигнал на выходе фильтра 1 тока.пр мой последовательности и в К раз увеличенный сигнал на выходе фильтра 2 тока обратной последовательности. Ключ 5 S открываетс и на выходе устройства по вл етс напр жение управлени . Достовер (Л ность информации достигаетс введением блока 3 сравнени и двух управл емых ключей 4 и 5. 1 ил.The invention relates to the field of electrical engineering, in particular, to relay protection of electrical installations, in particular, to protection of high voltage power lines. The purpose of the invention is to increase the reliability of information about the emergency state of the transmission line during external short circuits. The device contains a direct current filter 1 and a negative sequence current filter 2, with inputs connected to a power line. The outputs of filters 1 and 2 are connected to the inputs of comparison unit 3, the outputs of the latter are connected to the control inputs of keys 4 and 5. Keys 4 and 5 are connected to the outputs of filters 1 and 2 of the forward and reverse sequence currents. In the case of an asymmetrical short circuit, in the protection zone there is a signal at the output of the current filter 1. Direct sequence and a K increase signal at the output of the filter 2 of the negative sequence current. Key 5 S is opened and a control voltage appears at the output of the device. Accuracy (information is achieved by the introduction of a comparison unit 3 and two controllable keys 4 and 5. 1 Il.
Description
N5 ГОN5 GO
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Вы)(одYou) (one
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU853833283A SU1272391A1 (en) | 1985-01-02 | 1985-01-02 | Control chamber of transmitter of high-frequency differential - phase protection |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU853833283A SU1272391A1 (en) | 1985-01-02 | 1985-01-02 | Control chamber of transmitter of high-frequency differential - phase protection |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1272391A1 true SU1272391A1 (en) | 1986-11-23 |
Family
ID=21154592
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU853833283A SU1272391A1 (en) | 1985-01-02 | 1985-01-02 | Control chamber of transmitter of high-frequency differential - phase protection |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1272391A1 (en) |
-
1985
- 1985-01-02 SU SU853833283A patent/SU1272391A1/en active
Non-Patent Citations (1)
Title |
---|
Чернобровов И. В. Релейна защита.- М.: Энерги , 1974, с. 394-411. Федосеев А. М. Релейна защита электроэнергетических систем.-М.: Энергоатомзащита, 1984, с. 479-480. * |
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