Three-Phase Network Transformers
This is the second edition of CSA Standard C199, Three-Phase Network Transformers. It supersedes the first edition published in 1970 and is written in SI (metric) units.
This Standard provides special application requirements for network transformers that are not included in the more general CSA Standard C2, Single-Phase and Three-Phase Distribution Transformers, Types ONAN and LNAN.
This Standard was prepared by the CSA Committee on Utility Network Transformers under the jurisdiction of the Standards Steering Committee on Electrical Engineering Standards and was formally approved by these Committees.
This Standard specifies the mechanical and electrical characteristics of three-phase network transformers having rated primary voltages up to 34.5 kV and kV·A ratings of 500-2500.