标准摘要
[中文适用范围]： 本部分IEC 60143涵盖每相容量大于10 Mvar的串联电容器组的保护设备。保护设备定义为串联电容器装置的主电路设备和辅助设备，这些设备是串联电容器装置的一部分，但在电容器本身之外。关于电容器部分的建议见IEC 60143-1:2004。保护设备在IEC 60143-1:2004的第3条和第10.6条中提到。 本标准中涉及的保护设备包括以下项目： - 过电压保护器 - 保护火花间隙 - 变阻器 - 旁路开关 - 隔离开关和接地开关 - 放电电流限制和阻尼设备 - 电压互感器 - 电流传感器 - 耦合电容器 - 信号柱 - 光纤平台链路 - 继电器保护、控制设备和平台到地面的通信设备 参见图1。 串联电容器应用和操作的原则在第5条中给出。 故障场景的示例在第5条中给出。 使用不同过电压保护器的保护方案的示例在4.1中给出。 本标准的目标是： - 制定关于性能、测试和评级的统一规则 - 说明不同类型的过电压保护器 - 提供安装和操作指南 [外文原描述]： IEC 60143-2:2012+A1:2021 covers protective equipment for series capacitor banks, with a size larger than 10 Mvar per phase. Protective equipment is defined as the main circuit apparatus and ancillary equipment, which are part of a series capacitor installation, but which are external to the capacitor part itself. The recommendations for the capacitor part are given in IEC 60143-1:2004. The protective equipment is mentioned in Clause 3 and 10.6 of IEC 60143-1:2004. This second edition cancels and replaces the first edition published in 1994. It constitutes a technical revision. The main changes with respect to the previous edition are: - updated with respect to new and revised component standards; - updates with respect to technology changes. Outdated technologies have been removed, i.e. series capacitors with dual self-triggered gaps. New technologies have been added, i.e. current sensors instead of current transformers; - the testing of spark gaps has been updated to more clearly specify requirements and testing procedures. A new bypass making current test replaces the old discharge current test; - Clause 5, Guide, has been expanded with more information about different damping circuits and series capacitor protections. Keywords: protective equipment for series capacitor banks
英文名称Series capacitors for power systems - Part 2: Protective equipment for series capacitor banks