Efficiency of Application of Direct Current Insert for Purpose of Restriction of Short Circuit Currents at Association of Power Supply Systems

The system of power supply is characterized by the continuous growth of loadings. By transfer of such great values of capacities on the power line there is a problem with the restriction of short circuit currents. One of alternative ways of the solution of this problem is the application of inserts of a direct current creating "gap" in a chain. A research problem is to carry out the comparative analysis of the application of a direct current insert and the switch between tires-110 of kV on the substation of Irkutsk 330 kV in the PVK program complex ARA RZA for the purpose of the restriction of short circuit currents. In this article calculation for the schemes working in the mode on alternating and direct current is made. The values of the parameters in knots, short circuit currents are removed. Finally, the authors draw a conclusion about the efficiency of application of a direct current insert in this case as a result of the analysis.