EN 62751-1:2014

FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 General conditions
5 Conduction losses
6 D.C. voltage-dependent losses
7 Losses in d.c. capacitors
8 Switching losses
9 Other losses
10 Total valve losses per converter substation
Annex A (informative) - Determination of power losses
        in other HVDC substation equipment
Bibliography
Annex ZA (normative) - Normative references to
         international publications with their
         corresponding European publications

IEC 62751-1:2014 sets out the general principles for calculating the power losses in the converter valves of a voltage sourced converter (VSC) for high-voltage direct current (HVDC) applications, independent of the converter topology. Several clauses in the standard can also be used for calculating the power losses in the dynamic braking valves (where used) and as guidance for calculating the power losses of the valves for a STATCOM installation.