On the relevance of use the selective protection from single-phase short circuits in the electrical networks with voltage 6 - 35 kV

Key words: electrical network, bridging protection, selectivity, transient resistance, adaptability, power supply reliability.

The expediency of the use selective protection from ground short circuits in the electrical networks is substantiated. The possibility of providing with selective current protection by the neutral ground through a resistor is shown. The scheme is described and the characteristics of advanced current protection, promoting the increase of oil companies power supply reliability, are given.

References

1. Shuin V.A., Gusenkov A.V., Energetik, 2001, V. 11(35), pp.

2. Shalin A.I., Novosti elektrotekhniki, 2005, no. 3, pp.

3. Il'inykh M.V., Sarin L.I., Shirkovets A.I., Nauchnye problemy transporta Sibiri i Dal'nego Vostoka, 2008, pp. 65 – 68. (v etom zhurnale takoy stat'i v 2008 godu ne bylo)