标准摘要
[中文适用范围]： IEC 61869 的这一部分提供了针对直流应用 (DCCT) 中使用的电流互感器的所有要求，无论使用何种技术。输出信号可以是模拟信号或数字信号。它适用于额定电压1.5 kV以上直流电力系统中用于测量、保护和/或控制应用的新制造的电流互感器。 IEC 61869-6:2016 的图 601 描述了单极低功率互感器的一般配置。本文件未涵盖用于 VSC 阀晶体管支路电流测量的 DCCT（在图 1403 和表 1402 中称为 CT4a 和 CT4b），并将在未来修订中予以考虑。 [外文原描述]： IEC 61869-14:2018 provides all requirements specific to current transformers to be used in DC applications (DCCTs), whatever the technology used. The output signal can be analogue or digital. It is applicable to newly manufactured current transformers used for measuring, protection and/or control applications in DC power systems with a rated voltage above 1,5 kV. The general configuration of a single-pole low-power instrument transformer is described in Figure 601 of IEC 61869-6:2016. The DCCTs intended for current measurement in the transistor branch of the VSC valve (referred to as CT4a and CT4b in Figure 1403 and Table 1402) are not covered by this document, and will be considered in a future revision. IEC 61869-14:2018 applies to current transformers intended to be used in DC applications with at least one of the following functions: • measure DC current (with significant harmonics); • withstand DC voltage. Depending on the position on the DC system, different kinds of application exist, which are briefly described below, together with the approximate voltage or current wave shape.
英文名称Instrument transformers - Part 14: Additional requirements for current transformers for DC applications