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CENELEC - EN 62146-1

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

active, Most Current
Organization: CENELEC
Publication Date: 1 March 2014
Status: active
Page Count: 38
ICS Code (Power capacitors): 31.060.70
ICS Code (Capacitors in general): 31.060.01
scope:

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.

Document History

EN 62146-1
March 1, 2014
Grading capacitors for high-voltage alternating current circuit-breakers - Part 1: General
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...
March 1, 2014
Grading capacitors for high-voltage alternating current circuit-breakers - Part 1: General
A description is not available for this item.

References

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