PD IEC/TS 62332-2:2014
Current
The latest, up-to-date edition.
Electrical insulation systems (EIS). Thermal evaluation of combined liquid and solid components Simplified test
Hardcopy , PDF
English
31-05-2014
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Thermal ageing test apparatus
5 Construction of the test object
6 Test procedures
7 Analysis of data
Annex A (informative) - Consideration of weight ratios
Annex B (informative) - Consideration of ageing time
and temperature
Annex C (informative) - Aging example
Bibliography
Pertains to EIS containing solid and liquid components where the thermal stress is the dominant ageing factor, without restriction to voltage class.
Committee |
GEL/112
|
DocumentType |
Standard
|
Pages |
30
|
PublisherName |
British Standards Institution
|
Status |
Current
|
This part of IEC 62332, which is a technical specification, is applicable to EIS containing solid and liquid components where the thermal stress is the dominant ageing factor, without restriction to voltage class.
This part specifies a sealed tube test procedure for the thermal evaluation and qualification of electrical insulation systems (EIS). One aspect of this procedure is to also provide a method to assign thermal classifications to materials used in EIS where solid and liquid components are both used. This procedure describes a comparative ageing method whereby a reference system composed of kraft paper and mineral oil is compared to a candidate system of any combination of solid and insulating liquid. The test procedures in this part are specifically applicable to liquid immersed transformer insulation systems.
Similar procedures should also work for other electrotechnical devices with a combination of liquid and solid components, such as bushings, cables or capacitors, but this will be added as additional parts once experience is gained using this technical specification.
Standards | Relationship |
IEC TS 62332-2:2014 | Identical |
IEC 60243-1:2013 | Electric strength of insulating materials - Test methods - Part 1: Tests at power frequencies |
NEMA MW 1000 : 2016 | MAGNET WIRE |
IEC 60076-7:2005 | Power transformers - Part 7: Loading guide for oil-immersed power transformers |
IEC 62021-1:2003 | Insulating liquids - Determination of acidity - Part 1: Automatic potentiometric titration |
IEC 62021-2:2007 | Insulating liquids - Determination of acidity - Part 2: Colourimetric titration |
IEC TS 62332-1:2011 | Electrical insulation systems (EIS) - Thermal evaluation of combined liquid and solid components - Part 1: General requirements |
IEC 60156:1995 | Insulating liquids - Determination of the breakdown voltage at power frequency - Test method |
IEC 60599:2015 | Mineral oil-filled electrical equipment in service - Guidance on the interpretation of dissolved and free gases analysis |
IEC 60450:2004+AMD1:2007 CSV | Measurement of the average viscometric degree of polymerization of new and aged cellulosic electrically insulating materials |
IEC 60216-4-1:2006 | Electrical insulating materials - Thermal endurance properties - Part 4-1: Ageing ovens - Single-chamber ovens |
IEC 60076-14:2013 | Power transformers - Part 14: Liquid-immersed power transformers using high-temperature insulation materials |
IEC 60216-2:2005 | Electrical insulating materials - Thermal endurance properties - Part 2: Determination of thermal endurance properties of electrical insulating materials - Choice of test criteria |
IEC 60567:2011 | Oil-filled electrical equipment - Sampling of gases and analysis of free and dissolved gases - Guidance |
IEC 60851-5:2008+AMD1:2011 CSV | Winding wires - Test methods - Part 5: Electrical properties |
IEC 60763-2:2007 | Specification for laminated pressboard - Part 2: Methods of test |
IEC 60505:2011 | Evaluation and qualification of electrical insulation systems |
IEC 60085:2007 | Electrical insulation - Thermal evaluation and designation |
IEC 60641-2:2004 | Pressboard and presspaper for electrical purposes - Part 2: Methods of tests |
IEC 60296:2012 RLV | Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear |
IEC 61857-1:2008 | Electrical insulation systems - Procedures for thermal evaluation - Part 1: General requirements - Low-voltage |
IEC 60554-2:2001 | Cellulosic papers for electrical purposes - Part 2: Methods of test |
IEC 60076-6:2007 | Power transformers - Part 6: Reactors |
IEC 61620:1998 | Insulating liquids - Determination of the dielectric dissipation factor by measurement of the conductance and capacitance - Test method |
IEC 60814:1997 | Insulating liquids - Oil-impregnated paper and pressboard - Determination of water by automatic coulometric Karl Fischer titration |
IEC 60247:2004 | Insulating liquids - Measurement of relative permittivity, dielectric dissipation factor (tan d) and d.c. resistivity |
IEEE 1276-1997 | IEEE Guide for the Application of High-Temperature Insulation Materials in Liquid-Immersed Power Transformers |
ISO 2211:1973 | Liquid chemical products Measurement of colour in Hazen units (platinum-cobalt scale) |
ISO 2049:1996 | Petroleum products Determination of colour (ASTM scale) |
IEC 60216-5:2008 | Electrical insulating materials - Thermal endurance properties - Part 5: Determination of relative thermal endurance index (RTE) of an insulating material |
IEC 61198:1993 | Mineral insulating oils - Methods for the determination of 2-furfural and related compounds |
IEC 60216-3:2006 | Electrical insulating materials - Thermal endurance properties - Part 3: Instructions for calculating thermal endurance characteristics |
IEC 62021-3:2014 | Insulating liquids - Determination of acidity - Part 3: Test methods for non-mineral insulating oils |
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