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IEEE Standard for Sealed Dry-Type Distribution and Power Transformers
Abstract: Characteristics are provided in this standard relating to performance, limited electrical and mechanical interchangeability, and guidance to assist in the proper selection of sealed dry-type transformers having a high voltage of at least 601 V. Specific rating combinations are described in the range from 500 kVA to 5000 kVA inclusive, with voltage ratings as described in IEEE Std C57.12.01™. The fill gases used in these sealed dry-type power transformers are not explicitly defined. This standard does not apply to other types of transformers, such as those transformers described as exceptions in IEEE Std C57.12.01, as well as ventilated dry-type and non-ventilated dry-type transformers.
Keywords: ambient temperature, basic impulse insulation level, BIL, construction, current transformer, dry air, dry-type, electrical, gas, GA, grounding, IEEE C57.12.52™, insulation level, jacking, limiting temperature, mechanical, nitrogen, percent impedance voltage, performance, rating, sealed dry-type power transformers, self-cooled, surge arresters, taps, temperature rise, tests, transformer, transformer tank, unit substation, winding temperature
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