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Standard [CURRENT]
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The standard 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, etcetera). 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. The responsible committee is DKE/K 341 "Leistungskondensatoren" ("Power capacitors") of the DKE (German Commission for Electrical, Electronic and Information Technologies) at DIN and VDE.
This document replaces DIN EN 62146-1:2014-10; VDE 0560-50:2014-10 .