IEC 62146-1:2013

Grading capacitors for high-voltage alternating current circuit-breakers - Part 1: General

OVERVIEW

IEC 62146-1:2013 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 circuit-breakers 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. Keywords: grading capacitors, circuit-breakers

COMMENTS

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PRODUCT DETAILS

Status Current
Edition 2013
No. of Pages 71
ICS Classification 31.060.70 Power capacitors
31.060.01 Capacitors in general
Committee TC 33
Available for Purchase For sale in Singapore only
Adoption IEC