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IEC 61181:2007+AMD1:2012 CSV

Current
Current

The latest, up-to-date edition.

Mineral oil-filled electrical equipment - Application of dissolved gas analysis (DGA) to factory tests on electrical equipment
Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English - French

Published date

03-26-2012

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 General caution, health, safety and environmental
  protection
4 Oil sampling
5 Factors affecting gassing rate during thermal tests
6 Dissolved gas extraction and analysis
7 Report
Annex A (informative) - Gas formation rates during thermal
                        tests on power transformers
Annex B (informative) - Gas formation rates during
                        chopped-lightning impulse tests on
                        instrument transformers
Bibliography

IEC 61181:2007+A1:2012 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. This consolidated version consists of the second edition (2007) and its amendment 1 (2012). Therefore, no need to order amendment in addition to this publication.

Committee
TC 10
DevelopmentNote
Stability Date: 2019. (10/2012)
DocumentType
Standard
Pages
29
PublisherName
International Electrotechnical Committee
Status
Current
Supersedes

BS EN 61869-1:2009 Instrument transformers General requirements
13/30281408 DC : 0 BS EN 61869-10 - INSTRUMENT TRANSFORMERS - PART 10: ADDITIONAL REQUIREMENTS FOR LOW-POWER, STAND-ALONE CURRENT SENSORS
EN 60076-2:2011 Power transformers - Part 2: Temperature rise for liquid-immersed transformers
BS EN 60076-2:2011 Power transformers Temperature rise for liquid-immersed transformers
00/716717 DC : DRAFT NOV 2000
07/30167174 DC : 0 BS EN 61869-2 - INSTRUMENT TRANSFORMERS - PART 2: SPECIFIC REQUIREMENT FOR CURRENT TRANSFORMERS
07/30167396 DC : 0 BS EN 61869-4 - INSTRUMENT TRANSFORMERS - PART 4 - SPECIFIC REQUIREMENT FOR COMBINED TRANSFORMERS
CEI EN 60076-2 : 2015 POWER TRANSFORMERS - PART 2: TEMPERATURE RISE FOR LIQUID-IMMERSED TRANSFORMERS
CSA C60044-2 : 2007 INSTRUMENT TRANSFORMERS - PART 2: INDUCTIVE VOLTAGE TRANSFORMERS
CSA C60044-2 : 2007 : R2011 INSTRUMENT TRANSFORMERS - PART 2: INDUCTIVE VOLTAGE TRANSFORMERS
IEEE C57.13.5-2009 IEEE Standard of Performance and Test Requirements for Instrument Transformers of a Nominal System Voltage of 115 kV and Above
CSA C61869-1 : 2014 INSTRUMENT TRANSFORMERS - PART 1: GENERAL REQUIREMENTS
UNE-EN 61869-1:2010 Instrument transformers -- Part 1: General requirements
I.S. EN 61869-1:2009 INSTRUMENT TRANSFORMERS - PART 1: GENERAL REQUIREMENTS
CSA C60044-1 : 2007 : R2011 INSTRUMENT TRANSFORMERS - PART 1: CURRENT TRANSFORMERS
CSA C60044-1 : 2007 INSTRUMENT TRANSFORMERS - PART 1: CURRENT TRANSFORMERS
I.S. EN 60076-2:2011 POWER TRANSFORMERS - PART 2: TEMPERATURE RISE FOR LIQUID-IMMERSED TRANSFORMERS
IEC 60076-2:2011 Power transformers - Part 2: Temperature rise for liquid-immersed transformers
UNE-EN 60076-2:2013 Power transformers - Part 2: Temperature rise for liquid-immersed transformers
CEI EN 61869-1 : 2010 INSTRUMENT TRANSFORMERS - PART 1: GENERAL REQUIREMENTS
IEC 61869-1:2007 Instrument transformers - Part 1: General requirements
EN 61869-1:2009 Instrument transformers - Part 1: General requirements

IEC 60599:2015 Mineral oil-filled electrical equipment in service - Guidance on the interpretation of dissolved and free gases analysis
IEC 60475:2011 Method of sampling insulating liquids
IEC 60567:2011 Oil-filled electrical equipment - Sampling of gases and analysis of free and dissolved gases - Guidance
IEEE C57.12.90-2010 IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers
IEC 60076:1967 Power transformers

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