New Edition of IEC 62747 Published

High Voltage

A new edition has been published by the International Electrotechnical Commission for IEC 62747. IEC 62747 applies to “Terminology for voltage-sourced converters (VSC) for high-voltage direct current (HVDC) systems.” The update is available for purchase on the IEC website.


“IEC 62747:2014 defines terms for the subject of self-commutated voltage-sourced converters used for transmission of power by high voltage direct current (HVDC). The standard is written mainly for the case of application of insulated gate bipolar transistors (IGBTs) in voltage sourced converters (VSC) but may also be used for guidance in the event that other types of semiconductor devices which can both be turned on and turned off by control action are used. Line-commutated and current-sourced converters for high-voltage direct current (HVDC) power transmission systems are specifically excluded from this standard.”

*Description from the IEC website