SU527789A1 - Device for protective disconnection of traction direct-current networks - Google Patents
Device for protective disconnection of traction direct-current networksInfo
- Publication number
- SU527789A1 SU527789A1 SU2078440A SU2078440A SU527789A1 SU 527789 A1 SU527789 A1 SU 527789A1 SU 2078440 A SU2078440 A SU 2078440A SU 2078440 A SU2078440 A SU 2078440A SU 527789 A1 SU527789 A1 SU 527789A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- current networks
- protective disconnection
- traction direct
- traction
- direct
- Prior art date
Links
Landscapes
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Description
ПОД потенциалом, опасным дл жизни обслуживающего персонала. В момент касани происходит резкое возрастание тока вькодной цепи импульсного трансформатора 10. Сигнал с импульсного трансформатора 10 и рельсов 3 подаетс соответственно на пороговые элемешгы 6 и 9, стабилитроны 5 и 8 пробиваютс и на оба входа логического блока И 11 подаютс импульсы напр жени . При этом с выхода этого элемента подаетс отгнал на отключение автоматического быстродействующего выключател 12, отключающего контактный провод 2 от источника питани . П{ж пусковых режимах электровозов защита не срабатьшает , так как импульс напр жени по вл етс только на выходе импульсного трансформатора 10, потенциал же рельсов существенно не увеличиваетс . В результате этого на блок 11 подаетс только одни сигнал и схема не мен ет своего исходного состо ни . Автоматический Е 1С1родействующий выключатель 12 остаетс включенным. Пороговый элемент 6 потенциометром 4 настраиваетс так, чтобы стабилитрон 5 был закрьп при потешшалах рельсов, вызванных рабочими токами и открьшалс в момент касани ковщом контактного провода. Пороговый элемент 9 потенциометром 7 настраиваетс Under the potential of life-threatening staff. At the moment of contact, a sharp increase in the current of the encoder circuit of the pulse transformer 10 occurs. The signal from the pulse transformer 10 and the rails 3 is supplied to the threshold elements 6 and 9, respectively, the zener diodes 5 and 8 are punched and voltage pulses are sent to both inputs of the AND block. At the same time, the output of this element is driven to turn off the automatic high-speed switch 12, which disconnects the contact wire 2 from the power source. As the start-up modes of the electric locomotive, the protection does not work, since the voltage pulse appears only at the output of the pulse transformer 10, while the potential of the rails does not increase significantly. As a result, only one signal is applied to block 11 and the circuit does not change its initial state. Automatic E 1C1 action switch 12 remains on. The threshold element 6 with potentiometer 4 is adjusted so that the zener diode 5 is closed at the rails caused by the operating currents and opens when the contact wire contacts the bucket. The threshold element 9 is adjusted by potentiometer 7
на открытие стабилитрона 8 в момент касани в наиболее удаленной точке забойного участка т го вой сети.at the opening of the Zener diode 8 at the time of contact at the most remote point of the bottomhole section of the thrust network.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2078440A SU527789A1 (en) | 1974-11-25 | 1974-11-25 | Device for protective disconnection of traction direct-current networks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2078440A SU527789A1 (en) | 1974-11-25 | 1974-11-25 | Device for protective disconnection of traction direct-current networks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU527789A1 true SU527789A1 (en) | 1976-09-05 |
Family
ID=20601742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU2078440A SU527789A1 (en) | 1974-11-25 | 1974-11-25 | Device for protective disconnection of traction direct-current networks |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU527789A1 (en) |
-
1974
- 1974-11-25 SU SU2078440A patent/SU527789A1/en active
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