Overview of the IEC Transformer Standards

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Overview of the IEC Transformer Standards

• 6 October 2008
• H. Jin Sim
• TF Chairman, IEEE/IEC Cross Reference
• Transformers Committee

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IEC Technical CommitteesDeveloping and
maintaining Transformer documents

• TC 10 Fluids for electrotechnical applications
• TC14 Power transformers
• TC 36 Insulators
• SC 36A Insulated bushings
• SC 36B Insulators for overhead lines
• SC 36C Insulators for substations
• TC 112 Evaluation and qualification of electrical
  insulating materials and systems

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IEC TC 10 List of Documents
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IEC TC 10 List of Documents
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IEC TC 10 List of Documents
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IEC TC 10 List of Documents
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IEC TC 14 List of Documents
IEC 60076-1 (2000-04) Ed. 2.1 Power transformers
- Part 1 General
IEC 60076-5 (2006-07)  Power transformers - Part
5 Ability to withstand short circuit
IEC 60076-2 (1993-04)  Power transformers - Part
2 Temperature rise
IEC 60076-7 (2005-12)  Power transformers - Part
7 Loading guide for oil-immersed power
transformers
IEC 60076-3 (2000-03)  Power transformers - Part
3 Insulation levels, dielectric tests and
external clearances in air
IEC 60076-4 (2002-06)  Power transformers - Part
4 Guide to the lightning impulse and switching
impulse testing - Power transformers and reactors
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IEC TC 14 List of DocumentsCurrently in Revision
or Development Process
Power transformers - Part 1 General Power
transformers - Part 2 Temperature
rise Reactors Maintenance cycle report to IEC
60905 Ed.1 Power transformers - Part 12 Loading
guide for dry-type power transformers Power
transformers - Part 14 Design and application of
liquid-immersed power transformers using
high-temperature insulation materials Power
transformers - Part 15 Gas-filled-type power
transformers Power transformers - Part 16
Transformers for wind turbines applications
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IEC TC 36 List of Documents
IEC 61109 (1992-03)  Composite insulators for
a.c. overhead lines with a nominal voltage
greater than 1000 V - Definitions, test methods
and acceptance criteria
IEC 62217 (2005-10)  Polymeric insulators for
indoor and outdoor use with a nominal voltage 1
000 V - General definitions, test methods and
acceptance criteria
IEC 60137 (2003-08)  Insulated bushings for
alternating voltages above 1000 V
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IEC TC 36 List of Documents
IEC 62199 (2004-05) Bushings for d.c. application
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IEC TC 36 List of Documents
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IEC TC 36 List of Documents
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IEC TC 36 List of Documents
IEC 60137 Ed. 6.0 Insulated bushings for
alternating voltages above 1 000 V
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IEC TC 36 List of Documents
IEC 61109 Ed. 2.0 Composite suspension and
tension insulators for a.c. overhead lines with a
nominal voltage greater than 1000 V -
Definitions, test methods and acceptance criteria
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IEC TC 112 List of Documents
IEC 60085 (2004-06)  Electrical insulation -
Thermal classification
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IEC TC 112 List of Documents
IEC 60505 (2004-10)  Evaluation and qualification
of electrical insulation systems
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IEC TC 112 List of Documents
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IEC TC 112 List of Documents
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IEC TC 112 List of Documents
IEC/TS 62332-1 (2005-09)  Electrical insulation
systems (EIS) - Thermal evaluation of combined
liquid and solid components - Part 1 General
requirements
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IEC TC 112 List of Documents
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Comparison of IEC and IEEE Documents
There are several old comparisons available,
such as the example below
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Comparison of IEC and IEEE Documents
IEEE has a TF to update these comparisons
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Summary

• Know the differences between standards

• Specify main requirements clearly in your
  company specifications

• Participate in development efforts to harmonize

• Support the efforts by IEEE and IEC to work
  together
• Joint development agreement
• Consider holding meetings to maximize
  international participation where appropriate
• Consider a Cat D liaison to formalize
  communication

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Questions?