Standard

IEC 60071-12:2022 ED1

Oct 2022 Current

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Language English/French

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Abstract

IEC 60071-12:2022 applies guidelines on the procedures for insulation co-ordination of line commutated converter (LCC) stations for high-voltage direct current (HVDC) project, whose aim is evaluating the overvoltage stresses on the converter station equipment subjected to combined DC, AC power frequency, harmonic and impulse voltages, and determining the specified withstand voltages for equipment. This document deals only with metal-oxide surge arresters, without gaps, which are used in modern HVDC converter stations. The criteria for determining the protective levels of series and/or parallel combinations of surge arresters used to ensure optimal protection are also presented. Typical arrester protection schemes and stresses of arresters are presented. Annex A contains examples of insulation co-ordination for LCC HVDC converters which support the concepts described in the main text, and the basic analytical techniques used.

Products specifications

Standard from IEC
Published: October 14 2022
Edition: 1
Document type: IS
Pages
ISBN: 9782832258453

Publisher: IEC
Distributor: IEC
ICS: 29.080.30
International TC: TC 99

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Adopted by: SN EN IEC 60071-12:2022
Partially replaces: IEC 60071-5:2014 ED1

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Abstract

Products specifications

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