IEC 62146-1-2016
Grading capacitors for high-voltage alternating current circuit-breakers – Part 1: General (Edition 1.1; Consolidated Reprint)

Condensateurs de répartition pour disjoncteurs à courant alternatif haute tension – Partie 1: Généralités (Edition 1.1; Consolidated Reprint)

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标准号

IEC 62146-1-2016

发布日期

2016年06月01日

实施日期

2016年06月28日

废止日期

无

中国标准分类号

/

国际标准分类号

/

发布单位

IEC - International Electrotechnical Commission

引用标准

148

适用范围

This part of the IEC 62146 series is applicable to grading capacitors used on circuit-breakers. Their function is to control the voltage distribution across the individual interrupter units of a multi-break circuit-breaker. Grading capacitors can also be used in parallel to the interrupter unit on single break circuitbreakers to modify the Transient Recovery Voltage (TRV). The grading capacitor is a sub-component for the circuit-breaker and shall be specified in accordance with the circuit-breaker specifications. This standard applies to grading capacitors falling into one or both of the following categories for: ? mounting on air-insulated circuit-breakers; ? mounting on enclosed circuit-breakers (for example immersed in SF6@ in oil@ etc.). The testing for each of the above applications is in some cases different. The object of this standard is: ? to define uniform rules regarding performances@ testing and rating; ? to define specific safety rules; ? to provide a guidance for installation and operation. NOTE CIGRE Technical Brochure 368 [2] presents a study about the operating environment of voltage grading capacitors applied to high-voltage circuit-breakers. This standard does not apply to phase-to-earth capacitors installed on the circuit-breaker to modify the Transient Recovery Voltage.

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