IEC 60831-1 CORR 1-2014 Shunt power capacitors of the self-healing type for a.c systems having a rated voltage up to and including 1000 V - Part 1 General - Performance testing and.pdf

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1、May 2014 Mai 2014 IEC 60831-1 (3 rdedition 2014) Shunt power capacitors of the self-healing type for a.c. systems having a rated voltage up to and including 1 000 V Part 1: General Performance, testing and rating Safety requirements Guide for installation and operation IEC 60831-1 (3 medition 2014)

2、Condensateurs shunt de puissance autoregnrateurs pour rseaux courant alternatif de tension assigne infrieure ou gale 1 000 V Partie 1: Gnralits Caractristiques fonctionnelles, essais et valeurs assignes Rgles de scurit Guide dinstallation et dexploitation CORRIGENDUM 1 B.4.3 Discharge resistance in

3、single- phase units or in one-phase or polyphase units Replace the existing formula with the following: R N 2 n I U U C k t R where t is the time for discharge from U N2 to U Rin seconds (s); R equals discharge resistance in megohms (M) C is the rated capacitance in microfarads ( F) per phase; U Nis

4、 the rated voltage of unit in volts (V); U Ris the permissible residual voltage in volts (V) (see Clause 22 for limits of t and U R ); k is the coefficient depending on the method of connection of the resistors to the capacitor units (see Figure B.1). B.4.3 Rsistance de dcharge dans un condensateur

5、monophas ou dans une phase de condensateurs polyphass Remplacer la formule existante par ce qui suit: R N 2 n I U U C k t R o t est la dure de dcharge de U N2 U Ren secondes (s); R est la valeur de la rsistance de dcharge en mgohms (M) ; C est la capacit assigne en microfarads ( F) par phase; U Nest la tension assigne du condensateur en volts (V); U Rest la tension rsiduelle autorise en volts (V) (voir Article 22 pour les limites de t et de U R ); k est le coefficient qui dpend du mode de connexion des rsistances avec celles du condensateur unitaire (voir Figure B.1).

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