并联电力电容器外部保护用高压熔断器

[中文适用范围]： 本标准适用于根据 IEC 60871-1《额定电压高于 1 000 V 的交流电源系统的并联电容器 - 第 1 部分：通用》与高压电容器一起使用的外部熔断器。 IEC 60871-1 适用于特别是用于交流电源系统的功率因数校正的电容器单元和电容器组，也适用于用于电源滤波器电路的电容器。 [外文原描述]： IEC 60549:2013 applies to external fuses used with high-voltage capacitors according to IEC 60871-1, Shunt capacitors for a.c. power systems having a rated voltage above 1 000 V - Part 1: General. IEC 60871-1 is applicable to both capacitor units and capacitor banks intended to be used, particularly, for power-factor correction of a.c. power systems, and also to capacitors intended for use in power filter circuits. Fuses according to IEC 60549:2013 are intended to clear either faults inside a capacitor unit to permit continued operation of the remaining parts of the bank in which the unit is connected (unit fuses) or faults on the whole capacitor bank to isolate the bank from the system (line fuses). This second edition cancels and replaces the first edition published in 1976. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - alignment of the document with current IEC document structure requirements; - clarification of certain test requirements. Keywords: external fuses used with high-voltage capacitors, shunt capacitors for a.c.power system