IEEE/IEC 60076-21-2011

Current Revision
Power Transformers - Part 21: Standard Requirements, Terminology, and Test Code for Step-Voltage Regulators

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IEEE/IEC 60076-21-2011

Power Transformers - Part 21: Standard Requirements, Terminology, and Test Code for Step-Voltage Regulators

PUBLISH DATE 2011
PAGES 108
IEEE/IEC 60076-21-2011

Adoption Standard - Superseded.

Adoption of IEEE Std C57.15-2009. Description of design types, tables of 50 Hz and 60 Hz ratings, supplementary ratings, construction, and available accessories are provided.

Methods for performing routine and design tests applicable to liquid-immersed single and three-phase step-voltage regulators are described.

  • Winding resistance measurements
  • Polarity tests
  • Insulation power factor and resistance tests
  • Ratio tests
  • No load loss and excitation current measurements
  • Impedance and load loss measurements
  • Dielectric tests
  • Temperature tests
  • Routine and design impulse tests
  • Short-circuit tests
  • Control tests
  • Calculated data
  • Certified test data
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