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IEEE STANDARD

C57.12.90-2006 - IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers

Description: Methods for performing tests specified in IEEE Std C57.12.00™-2006 and other standards applicable to liquid-immersed distribution, power, and regulating transformers are described. Instrument transformers, step-voltage and induction voltage regulators, arc furnace transformers, rectifier transformers, specialty transformers, grounding transformers, and mine transformers are excluded. This standard covers resistance measurements, polarity and phase-relation tests, ratio tests, no-load-loss and excitation current measurements, impedance and load loss measurements, dielectric tests, temperature tests, short-circuit tests, audible sound level measurements, calculated data, and certified test data.
  • Status: Superseded Standard Help

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