Historical

C57.12.51-1981 (R1998)

Dry-Type Power Transformers 501 kVA and Larger, Three-Phase with High-Voltage 601 to 34 500 Volts, Low-Voltage 208Y/120 to 4160 Volts, Requirements for Ventilated

This standard is intended to set forth characteristics relating to performance, limited electrical and mechanical interchangeability, and saftey of the equipment described, and to assist in the proper selection of such equipment.

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Institute of Electrical and Electronics Engineers [ieee]

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