DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE
DIN EN 62146-1
; VDE 0560-50:2017-05
Grading capacitors for high-voltage alternating current circuit-breakers - Part 1: General (IEC 62146-1:2013 + A1:2016); German version EN 62146-1:2014 + A1:2016
Spannungsausgleichskondensatoren für Hochspannungs-Wechselstrom-Leistungsschalter - Teil 1: Allgemeines (IEC 62146-1:2013 + A1:2016); Deutsche Fassung EN 62146-1:2014 + A1:2016
Overview
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.
