范围:IEC 60255的本部分规定了功能和性能的最低要求 频率保护的评估。本文档还定义了如何记录和发布性能测试结果。 本文件涵盖了基于频率测量或频率测量变化率的功能。本文件还包括使用额外阻塞元件的频率保护。 本文件定义了稳态条件下影响精度的影响因素以及动态条件下的性能特征。本文件还包括验证性能特征和准确性的测试方法。 本文件涵盖的频率函数如表1所示 本功能文件适用于嵌入在保护继电器中的频率功能，也适用于在其功能中包含频率保护的其他物理设备（例如，低压跳闸装置）- 与光伏或存储系统相关的电压断路器或逆变器）。 本文档不包括同步或同步检查功能。 本文件未规定通常与频率功能相关的附加功能的功能描述，如欠压闭锁、df/dtΔf/Δt监控、， 电流监控或电源监控（f/P功能）。本文件仅涵盖其对频率保护功能的影响。 保护装置提供的频率测量输出的频率和变化率不在本文件的范围内。 此外，本文件并未明确涵盖基于电流作为输入通电量的频率继电器，但本文件涵盖的原则可以扩展，为这些应用提供指导。 IEC 60255规定了测量继电器和保护设备的一般要求- 1.交叉引用:IEC 61850（所有部分）EN 60255-1IEC 61850EN 61869IEC 60050-601IEC 61869IEC 60255-1IEC 61869（所有部分）IEC 60050-103IEC 60050-447EN 61850EN 61000-2-4:2002IEC 60255-24IEC 60050-601IEC 60050（所有部分）IEC 60050-447EN 61850-9-2IEC 61850-7-4EN 60255-24EN 61850-7-4IEC 60050-103IEC 61850-9-2IEE标准C37。2-2008EN 61869-9IEC/IEEE 60255-118-1IEC 61000-2-4:2002IEC 61869-9:2016购买本文件时提供的所有当前修订版均包含在购买本文件中。

Scope: This part of IEC 60255 specifies the minimum requirements for functional and performance evaluation of frequency protection. This document also defines how to document and publish performance test results. This document covers the functions based on frequency measurement or rate of change of frequency measurements. This document also covers frequency protection where additional blocking elements are used. This document defines the influencing factors that affect the accuracy under steady state conditions and performance characteristics during dynamic conditions. The test methodologies for verifying performance characteristics and accuracy are also included in this document. The frequency functions covered by this document are shown in Table 1 This functional document is applicable to frequency functions embedded in a protection relay but also to other physical devices which include frequency protection in their functionality (for example, trip units in a low-voltage circuit breaker or inverters associated with photovoltaic or storage systems). This document does not cover synchronizing or synchronism-check functions. This document does not specify the functional description of additional features often associated with frequency functions such as undervoltage blocking,df/dtΔf/Δt supervision, current supervision or power supervision (f/P function). Only their influence on the frequency protection function is covered in this document. Frequency and rate of change of frequency measurement outputs provided by protection devices are not in the scope of this document. Additionally, this document does not explicitly cover the frequency relays based on current as the input energizing quantity but the principles covered by this document can be extended to provide guidance for these applications. The general requirements for measuring relays and protection equipment are defined in IEC 60255-1.Cross References:IEC 61850 (all parts)EN 60255-1IEC 61850EN 61869IEC 60050-601IEC 61869IEC 60255-1IEC 61869 (all parts)IEC 60050-103IEC 60050-447EN 61850EN 61000-2-4:2002IEC 60255-24IEC 60050-601IEC 60050 (all parts)IEC 60050-447EN 61850-9-2IEC 61850-7-4EN 60255-24EN 61850-7-4IEC 60050-103IEC 61850-9-2IEEE Std C37.2-2008EN 61869-9IEC/IEEE 60255-118-1IEC 61000-2-4:2002IEC 61869-9:2016All current amendments available at time of purchase are included with the purchase of this document.