scope:

This Standard specifies maximum losses for distribution, power, and dry-type transformers of types similar to or as described in CSA Standards CAN/CSA-C2, CAN/CSA-C9, CAN/CSA-C22.2 No. 47, CAN/CSA-C88, CAN/CSA-C227.3, C227.4, and C301.1. The losses specified are for normal designs of transformer, as described in the relevant clauses, but in addition losses are specified for some special designs that are also described.

This Standard applies to distribution transformers rated from 25 to 3 000 kV-A, power transformers rated from 501 to 10 000 kV-A, and dry-type transformers rated from

(a) 30 to 7 500 kV-A three phase; and

 (b) 25 to 333 kV-A single phase (up to 1.2 kV class).