仪表用变压器. 第6部分: 低功率仪表变压器的通用额外要求

[中文适用范围]： IEC 61869 的这一部分是产品系列标准，仅涵盖用于额定频率为 15 Hz 至 100 Hz（涵盖中压、高压和超高压）的交流应用或用于直流应用的低功率互感器 (LPIT) 的附加一般要求。本产品标准基于 IEC 61869-1:2007，以及相关产品特定标准。 IEC 61869的本部分不涵盖互感器数字输出格式的规范。 IEC 61869 的这一部分定义了模拟或数字输出情况下的错误。互感器数字接口的其他特性在 IEC 61869-9 中标准化，作为 IEC 61850 系列标准的应用，该系列详细介绍了分层变电站通信架构。 IEC 61869 的这一部分考虑了有关带宽的附加要求。规范性附录6A.4给出了谐波精度要求和抗混叠滤波器要求。单相 LPIT 的总体框图如图 601 所示。根据技术，图 601 中描述的所有部件并非绝对需要包含在互感器中。例如，对于低功率无源变压器（没有有源电子元件的 LPIT），块仅由无源元件组成，并且没有电源。图 601 - 单相 LPIT 的一般框图 [外文原描述]： IEC 61869-6:2016(E) is a product family standard and covers only additional general requirements for low-power instrument transformers (LPIT) used for a.c. applications having rated frequencies from 15 Hz to 100 Hz covering MV, HV and EHV or used for d.c. applications. This product standard is based on IEC 61869-1:2007, in addition to the relevant product specific standard. This part of IEC 61869 does not cover the specification for the digital output format of instrument transformers. This part of IEC 61869 defines the errors in case of analogue or digital output. The other characteristics of the digital interface for instrument transformers are standardised in IEC 61869-9 as an application of the standards, the IEC 61850 series, which details layered substation communication architecture. This part of IEC 61869 considers additional requirements concerning bandwidth. General Requirements; however, the reader is encouraged to use its most recent edition. This first edition of IEC 61869-6 cancels and replaces the relevant parts of IEC 60044-7, published in 1999, and of IEC 60044-8, published in 2002. This publication is to be read in conjunction with IEC 61869-1:2007