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IEC 60270-ed.4.0
High-voltage test techniques – Charge-based measurement of partial discharges
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STANDARD published on 5.6.2025
The information about the standard:
Designation standards: IEC 60270-ed.4.0
Publication date standards: 5.6.2025
SKU: NS-1223122
The number of pages: 145
Approximate weight : 466 g (1.03 lbs)
Country: International technical standard
Category: Technical standards IEC
The category - similar standards:
Electrical and electronic testingMeasurement of electrical and magnetic quantities
Annotation of standard text IEC 60270-ed.4.0 :
IEC 60270:2025 is applicable to the charge-based measurement of partial discharges which occur in electrical apparatus, components or systems when tested with alternating voltages (AC) up to 500 Hz or with direct voltage (DC). This document: – defines the terms used; – defines the quantities to be measured; – describes the measurement frequencies as well as the test and measuring circuits which may be used; – defines analogue and digital measuring methods required for common applications; – specifies methods for calibration and requirements of instruments used for calibration; – gives guidance on test procedures; – gives some assistance concerning the discrimination of partial discharges from external interference. The provisions of this document are used in the drafting of specifications relating to partial discharge measurements for specific power apparatus. It deals with electrical measurements of impulsive (short-duration) partial discharges, but reference is also made to non-electrical methods primarily used for partial discharge location (see Annex F). Diagnosis of the behaviour of specific power apparatus can be aided by digital processing of partial discharge data (see Annex E) and also by non-electrical methods that are primarily used for partial discharge location (see Annex F). This document is primarily concerned with electrical measurement of partial discharge in terms of apparent charge for specific power apparatus made during tests with alternating voltage, but specific problems which arise when tests are made with direct voltage are considered in Clause 11. The terminology, definitions, basic test circuits and procedures often also apply to tests at other frequencies, but special test procedures and measuring system characteristics which are not considered in this document may be required. For measurements at higher frequency ranges, see IEC TS 62478. Annex A provides normative requirements for performance tests on calibrators. This fourth edition cancels and replaces the third edition published in 2000, and Amendment 1:2015. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) Title modified. b) Use with alternating voltages up to 500 Hz or with direct voltage. c) Clear focus on charge-based partial discharge measurements. d) Streamlined performance checks for partial discharge measurement system components. e) Improved normative Annex A for performance tests on calibrators. f) Revised and new informative Annexes. In a future revision, this document will seek horizontal publication status in accordance with IEC Guide 108. LIEC 60270:2025 sapplique aux mesurages fondes sur les charges pour les decharges partielles (DP) qui se produisent dans les appareillages, composants ou systemes electriques soumis a des essais sous des tensions alternatives inferieures ou egales a 500 Hz ou sous une tension continue. Le present document: – definit les termes utilises; – definit les grandeurs a mesurer; – decrit les frequences de mesure, ainsi que les circuits dessai et de mesure qui peuvent etre utilises; – definit les methodes de mesure analogique et numerique exigees pour les applications courantes; – specifie les methodes detalonnage et les exigences relatives aux appareils de mesure utilises pour letalonnage; – fournit des recommandations pour les procedures dessai; – donne des conseils pour distinguer les decharges partielles des interferences externes. Les dispositions du present document sont utilisees pour elaborer les specifications relatives aux mesurages de decharges partielles dans le cadre dappareillages de puissance specifiques. Le present document traite des mesurages electriques des decharges partielles impulsionnelles (de courte duree), mais il est egalement fait reference a des methodes non electriques, principalement utilisees pour la localisation des decharges partielles (voir lAnnexe F). Les diagnostics concernant le comportement dappareillages de puissance specifiques peuvent etre facilites par le traitement numerique des donnees de decharges partielles (voir lAnnexe E), mais egalement par des methodes non electriques, utilisees principalement pour la localisation des decharges partielles (voir lAnnexe F). Le present document traite essentiellement des mesurages electriques de decharges partielles fondes sur la charge apparente dappareillages de puissance specifiques, effectues dans le cadre dessais sous une tension alternative, mais lArticle 11 traite neanmoins des problemes particuliers susceptibles de se produire lors dessais sous une tension continue. La terminologie, les definitions, les circuits dessai de reference et les procedures sont souvent utilises pour les essais a dautres frequences de mesure des DP, mais des procedures dessai et des caracteristiques de systemes de mesure particulieres, qui ne sont pas traitees dans le present document, peuvent etre exigees. Pour les mesurages effectues dans des plages de frequences superieures, voir lIEC TS 62478. LAnnexe A fournit les exigences normatives relatives aux essais de determination des caracteristiques des dispositifs detalonnage. Cette quatrieme edition annule et remplace la troisieme edition parue en 2000 et lAmendement 1:2015. Cette edition constitue une revision technique. Cette edition inclut les modifications techniques majeures suivantes par rapport a ledition precedente: a) modification du titre; b) utilisation de tensions alternatives inferieures ou egales a 500 Hz ou dune tension continue; c) valorisation des mesurages de decharges partielles fondes sur les charges; d) simplification des controles des caracteristiques pour les composants des systemes de mesure de decharges partielles; e) amelioration de lAnnexe A normative pour les essais de determination des caracteristiques des dispositifs detalonnage; f) revision des annexes informatives existantes et ajout dannexe
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