TRANSMISSION SYSTEM Russian patent published in 2010 - IPC H02J3/36 H02H7/26 

FIELD: electricity.

SUBSTANCE: HVDC transmission system includes on one end of bipolar HVDC transmission line the converting station intended for connection of the above transmission line to AC system. This station has two converters and DC neutral circuit being common for converters. The above DC neutral circuit has individual connecting element (142, 143) of electrode line, which connects to electrode lines (191, 192). Electrode lines (191, 192) have such dimensions that when the converting station operates in single-pole mode, the transmission of actually total current to electrode station (190) through the one or several left electrode lines can be possible at disconnection of arbitrary number of electrode lines.

EFFECT: improving electric power transmission reliability.

12 cl, 5 dwg