PD IEC TS 60076-20:2017

1   Scope This part of IEC 60076 is applicable to transformers in the scope of IEC 60076‑1. The energy performance levels given in Clause 6 are not applicable to the following transformers:

• transformers for high current rectifiers as described in the IEC 61378 (all parts) and in the IEC 60146 (all parts);

• transformers for furnace applications;

• transformers for offshore applications;

NOTE 1 Transformer to be installed on fixed or floating offshore platforms, offshore wind turbines or on board of ships and all kind of vessels).

• transformers for emergency or temporary mobile installations;

NOTE 2 Transformers designed only to provide cover for a specific time limited situation when the normal power supply is interrupted either due to an unplanned occurrence such as failure or a station refurbishment, but not to permanently upgrade an existing substation.

• traction transformers;