This standard describes methods for performing tests specified in IEEE Std C.57.12.01 and other referenced standards applicable to dry-type distribution and power transformers, with a voltage of 601 V or higher in the highest voltage winding. 2 It is intended for use as a basis for performance and for the proper testing of dry-type distribution and power transformers.
This standard applies to all dry-type transformers including those with solid cast and/or resin encapsulated windings, except as follows:
a) Instrument transformers
b) Step-voltage and induction voltage regulators
c) Arc furnace transformers
d) Rectifier transformers
e) Specialty and General Purpose transformers
f) Mine transformers
g) Testing transformers
h) Welding transformers
