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PD IEC/TS 62332-2:2014

Current

Current

The latest, up-to-date edition.

Electrical insulation systems (EIS). Thermal evaluation of combined liquid and solid components Simplified test

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

31-05-2014

€217.36
Excluding VAT

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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