2016UNE-EN 61803:1999/A2:2016 Determination of power losses in high-voltage direct current (HVDC) converter stations with line commutated converters (Endorsed by AENOR in November of 2016.)
2011UNE-EN 61803:1999/A1:2010 Determination of power losses in high-voltage direct current (HVDC) converter stations with line-commutated converters (Endorsed by AENOR in April of 2011.)
2001UNE-EN 61803:1999 Determination of power losses in high-voltage direct current (HVDC) converter stations (Endorsed by AENOR in May of 2001.)