The Issue of Shunting of the Affected Phase in Compensated Medium Voltage Networks

Abstract

<p class="TEEAbstract">Permanently increasing size of the capacitive currents in medium voltage networks becomes a limiting factor in their operation. This negative trend is manifested especially in the mixed networks, where the proportion of cable gradually increases in comparison with the overhead medium voltage lines. The residual currents in the one-pole insulation faults in the medium voltage system, in insulation fault site are continually increasing. Large investment funds are necessary for full elimination of the fault currents, while other known ways used in the partial elimination of the size of the fault currents have some technical limitations. In this article, the positive and negative sides of the method “Shunting of the affected phase in compensated medium voltage networks” are then evaluated.</p>