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Description / Abstract:
This standard applies to all liquid-immersed distribution,
power, and regulating transformers that are designed to operate at
temperatures that exceed the normal thermal limits of IEEE Std
C57.12.00TM 1 under continuous load, in the designed average
ambient, and at rated conditions.
Purpose
This standard provides specific requirements and guidance in the
design, testing, and application of the transformers covered within
its scope. These transformers incorporate high-temperature
insulation systems or systems that use a combination of
high-temperature and conventional insulation.