IEC 60633:2019作为IEC 60633:2019 RLV提供，其中包含国际标准及其红线版本，显示了与上一版本相比技术内容的所有变化。IEC 6033:2019定义了高压直流(HVDC)输电系统和使用电子电力转换器将交流转换为DC或反之亦然的HVDC变电站的术语。本文件适用于具有线路换向转换器的HVDC变电站，最常见的是基于三相桥（双向）连接（见图2），其中使用单向电子阀，例如半导体阀。对于晶闸管阀，本文件仅包括最重要的定义。IEC 60700-2.与上一版相比，本版本包括以下重大技术变更: -修订了40个术语和定义，并增加了31个新术语和定义，主要涉及换流装置和阀门、换流器运行条件、高压直流输电系统和变电站以及高压直流输电变电站设备； -增加了电容换向转换器配置的新图13。

IEC 60633:2019 is available as IEC 60633:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 6033:2019 defines terms for high-voltage direct current (HVDC) power transmission systems and for HVDC substations using electronic power converters for the conversion from AC to DC or vice versa. This document is applicable to HVDC substations with line commutated converters, most commonly based on three-phase bridge (double way) connections (see Figure 2) in which unidirectional electronic valves, for example semiconductor valves, are used. For the thyristor valves, only the most important definitions are included in this document. A more comprehensive list of HVDC valve terminology is given in IEC 60700-2. This edition includes the following significant technical changes with respect to the previous edition:
- 40 terms and definitions have been amended and 31 new terms and definitions have been added mainly on converter units and valves, converter operating conditions, HVDC systems and substations and HVDC substation equipment;
- a new Figure 13 on capacitor commutated converter configurations has been added.