标准摘要
[中文适用范围]： 本文件规定了电力变压器和换流变压器直流偏磁抑制装置的要求。包括使用条件、结构、试验、包装、运输和贮存等要求。该装置连接到电力变压器和换流变压器的中性点，以抑制高压直流系统在单极接地返回模式或双极不平衡模式下运行时的直流偏置电流。在专用金属回路高压直流输电系统中，这些器件可有效缓解直流线路故障等瞬态条件下流经电力变压器和换流变压器的直流杂散电流。本文件适用于电压高于 110 kV 的电力系统上工作频率为 50 Hz 和 60 Hz 的直流磁偏压抑制装置。 [外文原描述]： IEC TS 60076-23:2018(E) specifies requirements for devices for the suppression of DC magnetic bias of power transformers and convertor transformers. It includes requirements for service conditions, structures, testing, packing, transport and storage. The devices are connected to neutral points of power transformers and converter transformers to suppress DC bias current in the case an HVDC system is operated in monopole ground return mode or bipolar unbalanced mode. In the case of dedicated metallic return HVDC system, the devices are useful to mitigate DC stray current flowing through power transformers and converter transformers during transient conditions such as DC line fault. This document applies to DC magnetic bias suppression devices for operation at frequencies of 50 Hz and 60 Hz on power systems having voltages above 110 kV.
英文名称Power transformers - Part 23: DC magnetic bias suppression devices