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 (DCVT) 中使用的电压互感器的所有要求，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压互感器。本文件涵盖了用于测量、控制和保护的无源分压器和有源电压互感器。 IEC 61869-6:2016 的图 601 描述了单极低功率互感器的一般配置。 [外文原描述]： IEC 61869-15:2018 provides all requirements specific to voltage transformers to be used in DC applications (DCVTs), whatever the technology used. The output signal can be analogue or digital. It is applicable to newly manufactured voltage transformers used for measuring, protection and/or control applications in DC power systems with a rated voltage above 1,5 kV. This document covers passive voltage dividers as well as active voltage transformers, used for measurement, control and protection. The general configuration of a single-pole low-power instrument transformer is described in Figure 601 of IEC 61869-6:2016. IEC 61869-15:2018 applies to voltage transformers (VT) intended to be used in DC applications with the following functions: • measure DC voltage (with significant harmonics); • withstand DC voltage. Two main technologies of DC converters exist today: LCC and VSC • Line-commutated converters (LCC) are based on thyristor converters. They are characterized by a single direction of current flow, and a voltage polarity reversal possibility. Significant voltage and current harmonics exist up to frequencies of about 3 kHz to 4 kHz. • Voltage source converters (VSC) are based on transistor converters. They are characterized by a bi-directional current flow and a single voltage polarity. Voltage and current harmonics exist up to frequencies of about 20 kHz.
英文名称Instrument transformers - Part 15: Additional requirements for voltage transformers for DC applications