IEC 60919的本部分是一份技术报告，提供了高压直流（HVDC）系统瞬态性能和故障保护要求的指南。它涉及使用由三相桥式（双向）连接组成的12个脉冲换流器单元的双端HVDC系统的故障和切换相关的瞬态性能，但不包括多端HVDC传输系统。然而 讨论了作为双端系统一部分的并联转换器和并联线路的某些方面。换流器假定使用晶闸管阀作为桥臂，使用无间隙金属氧化物避雷器进行绝缘- 协调并在两个方向上具有功率流能力。本报告不考虑二极管阀。包含以下内容:PD IEC/TR 60919-2:2008+A1:2015

This part of IEC 60919 which is a technical report provides guidance on the transient performance and fault protection requirements of high voltage direct current (HVDC) systems. It concerns the transient performance related to faults and switching for two-terminal HVDC systems utilizing 12-pulse converter units comprised of three-phase bridge (double way) connections but it does not cover multi-terminal HVDC transmission systems. However, certain aspects of parallel converters and parallel lines, if part of a two-terminal system, are discussed. The converters are assumed to use thyristor valves as the bridge arms, with gapless metal oxide arresters for insulation co-ordination and to have power flow capability in both directions. Diode valves are not considered in this report.Incorporates the following:PD IEC/TR 60919-2:2008+A1:2015