IEEE C57.12.90-2010
- IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers
- standard by IEEE, 10/15/2010
- Category: IEEE
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Revision Standard - Superseded.Methods for performing tests specified in IEEE Std C57.12.00(TM) and other standards applicable to liquid-immersed distribution, power, and regulating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, and calculated data.
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