Terminology for high-voltage direct current (HVDC) transmission (IEC 60633:1998 + A1:2009 + A2:2015); German version EN 60633:1999 + A1:2009 + A2:2015— 39 стр.
Determination of power losses in high-voltage direct current (HVDC) converter stations with line-commutated converters (IEC 61803:1999 + A1:2010); German version EN 61803:1999 + A1:2010— 35 стр.