IEC 60143-2:20 2+A1:2021涵盖了串联电容器组的保护设备，每相尺寸大于10 Mvar。保护设备被定义为主电路设备和辅助设备，它们是串联电容器装置的一部分，但在电容器部件本身的外部。IEC 60143-1:20 04中给出了电容器部分的建议。IEC 60143-1:20 04第3条和第10.6条中提到了防护设备。这第二版取消并取代了1994年出版的第一版。它构成技术修订。与上一版相比的主要变化是: -根据新的和修订的组件标准进行更新； -关于技术变化的更新。过时的技术已被移除，即具有双自-触发缺口。增加了新技术，即电流传感器代替电流互感器； -更新了火花间隙的测试，更明确地规定了要求和测试程序。新的旁路制造电流测试取代了旧的放电电流测试； -第5条，指南，已经扩展了更多关于不同阻尼电路和串联电容器保护的信息。 关键词:串联电容器组保护设备

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 Outdated technologies have been removed, i.e. series capacitors with dual self-triggered gaps.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