EN 61181:2007
(Main)Mineral oil-filled electrical equipment - Application of dissolved gas analysis (DGA) to factory tests on electrical equipment
Mineral oil-filled electrical equipment - Application of dissolved gas analysis (DGA) to factory tests on electrical equipment
Specifies oil-sampling procedures, analysis requirements and procedures, and recommends sensitivity, repeatability and accuracy criteria for the application of dissolved gas analysis (DGA) to factory testing of new power transformers, reactors and instrument transformers filled with mineral insulating oil when DGA testing has been specified. The most effective and useful application of DGA techniques to factory testing is during the performance of long-term tests, typically temperature-rise (heat run) and overloading tests on power transformers and reactors, also impulse tests on instrument transformers. DGA may also be valuable for over-excitation tests run over an extended period of time. Experience with DGA results, before and after short-time dielectric tests, indicates that DGA is normally less sensitive than electrical and acoustic methods for detecting partial discharges. However, DGA will indicate when these partial discharges become harmful to the insulation and may be detected by inspection [2]. This edition includes the following significant technical changes with respect to the previous edition: a) the specific procedures used during factory tests (sampling location, sampling frequency, gas extraction and chromatographic analysis in the laboratory) are described in more detail; b) information is provided in Annex A concerning the residual gas contents recommended before thermal tests on power transformers, typical gas values observed during the tests and cases where gas formation during the tests was followed by problems in the transformers; c) typical values observed during chopped lightning-impulse tests on instrument transformers are indicated in Annex B.
Mineralölgefüllte elektrische Betriebsmittel - Anwendung der Gasanalyse für gelöste Gase (DGA) auf Werksprüfungen von elektrischen Betriebsmitteln
Matériels électriques imprégnés d'huile minérale - Application de l'analyse des gaz dissous (AGD) lors d'essais en usine de matériels électriques
Spécifie les modes opératoires d'échantillonnage des huiles, les exigences analytiques et les procédures, et recommande les critères de sensibilité, de répétabilité et de précision pour l'application de l'analyse des gaz dissous (AGD) aux essais en usine des transformateurs de puissance neufs, des bobines d'inductance et des transformateurs de mesure, dans le cas où le cahier des charges prévoit des essais d'analyse des gaz dissous (AGD). L'application des techniques d'AGD la plus utile et la plus efficace, au cours des essais en usine, est celle pratiquée pendant les essais de fonctionnement de longue durée, particulièrement les essais de surcharge et d'échauffement des transformateurs de puissance et des bobines d'inductance, ainsi que les essais au choc de foudre sur les transformateurs de mesure. L'analyse des gaz dissous peut être aussi valable pour les essais de surexcitation effectués pendant une période de temps prolongée. L'expérience acquise avec les résultats de l'AGD, avant et après les essais diélectriques de courte durée, montre que, l'analyse des gaz dissous, est moins sensible que les méthodes électriques et acoustiques pour la détection des décharges partielles. Cependant, l'AGD indiquera quand ces décharges deviennent dangereuses pour l'isolation et peuvent être détectées par inspection [2]. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a) les procédures spécifiques utilisées pendant les essais en usine (points et fréquence d'échantillonnage, extraction des gaz et analyse chromatographique en laboratoire) sont décrites avec plus de détails; b) l'Annexe A fournit des informations sur les teneurs en gaz résiduelles qui sont recommandées avant les essais thermiques sur les transformateurs de puissance, sur les valeurs typiques de gaz observées pendant les essais, et sur les cas où la formation de gaz pendant les essais a été suivie de problèmes dans les transformateurs; c) l'Annexe B indique les valeurs typiques observées pendant les essais en choc de foudre coupé sur les transformateurs de mesure.
Impregnirani izolacijski materiali - Uporaba analize raztopljenih plinov pri tovarniškem preskušanju električne opreme (IEC 61181:2007)
Ta mednarodni standard določa postopke vzorčenja olj, zahteve in postopke za analizo ter priporoča merila za občutljivost, ponovljivost in natančnost pri uporabi analize raztopljenih plinov pri tovarniškem preskušanju novih močnostnih transformatorjev, reaktorjev in merilnih transformatorjev, napolnjenih z mineralnim izolacijskim oljem, kadar je določeno preskušanje z analizo raztopljenih plinov. Najučinkovitejša in najuporabnejša uporaba tehnik analize raztopljenih plinov pri tovarniškem preskušanju je med izvajanjem dolgotrajnih preskusov praviloma med preskusi dviga temperature (toplotnimi preskusi) in preskusi s prenapetostjo na močnostnih transformatorjih in reaktorjih, pa tudi med preskusi z impulzno napetostjo na merilnih transformatorjih. Analiza raztopljenih plinov je lahko uporabna tudi pri preskusih prekomernega vzbujanja, ki potekajo v daljšem časovnem obdobju. Izkušnje z rezultati analize raztopljenih plinov pred in za kratkotrajnimi dielektričnimi preskusi kažejo, da je analiza raztopljenih plinov pri odkrivanju delnih razelektritev običajno manj občutljiva kot električne in akustične metode. Vendar pa bo analiza raztopljenih plinov pokazala, kdaj delne razelektritve postanejo škodljive za izolacijo, kar se lahko odkrije s pregledom.
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Getränkte Isolierstoffe - Verwendung der Gasanalyse für gelöste Gase (DGA) als Werksprüfung für elektrische Betriebsmittel (IEC 61181:2007)Matériels électriques imprégnés d'huile minérale - Application de l'analyse des gaz dissous (AGD) lors d'essais en usine de matériels électriques (CEI 61181:2007)Mineral oil-filled electrical equipment - Application of dissolved gas analysis (DGA) to factory tests on electrical equipment (IEC 61181:2007)29.040.01Izolacijski fluidi na splošnoInsulating fluids in generalICS:Ta slovenski standard je istoveten z:EN 61181:2007SIST EN 61181:2010en01-september-2010SIST EN 61181:2010SLOVENSKI
STANDARDSIST EN 61181:19971DGRPHãþD
SIST EN 61181:2010
EUROPEAN STANDARD EN 61181 NORME EUROPÉENNE
EUROPÄISCHE NORM April 2007
CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2007 CENELEC -
All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61181:2007 E
ICS 29.040.10; 29.180 Supersedes EN 61181:1993
English version
Mineral oil-filled electrical equipment -
Application of dissolved gas analysis (DGA)
to factory tests on electrical equipment (IEC 61181:2007)
Matériels électriques
imprégnés d'huile minérale -
Application de l'analyse des gaz dissous (AGD) lors d'essais en usine
de matériels électriques (CEI 61181:2007)
Getränkte Isolierstoffe -
Verwendung der Gasanalyse
für gelöste Gase (DGA)
als Werksprüfung
für elektrische Betriebsmittel (IEC 61181:2007)
This European Standard was approved by CENELEC on 2007-03-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.
SIST EN 61181:2010
EN 61181:2007 - 2 -
Foreword The text of document 10/675/FDIS, future edition 2 of IEC 61181, prepared by IEC TC 10, Fluids for electrotechnical applications, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61181 on 2007-03-01. This European Standard supersedes EN 61181:1993. EN 61181:2007 includes the following significant technical changes with respect to EN 61181:1993: – the specific procedures used during factory tests (sampling location, sampling frequency, gas extraction and chromatographic analysis in the laboratory) are described in more detail; – information is provided in Annex A concerning the residual gas contents recommended before thermal tests on power transformers, typical gas values observed during the tests and cases where gas formation during the tests was followed by problems in the transformers; – typical values observed during chopped lightning-impulse tests on instrument transformers are indicated in Annex B. The following dates were fixed: – latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement
(dop)
2007-12-01 – latest date by which the national standards conflicting
with the EN have to be withdrawn
(dow)
2010-03-01 Annex ZA has been added by CENELEC. __________ Endorsement notice The text of the International Standard IEC 61181:2007 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to be added for the standards indicated: IEC 60076 NOTE
Harmonized in EN 60076 series (partially modified). IEC 60599 NOTE
Harmonized as EN 60599:1999 (not modified). IEC 60044 NOTE
Harmonized in EN 60044 series (partially modified). __________
SIST EN 61181:2010
- 3 - EN 61181:2007 Annex ZA
(normative)
Normative references to international publications with their corresponding European publications
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced docum
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