IEC 60044-2-2003 Instrument transformers - Part 2: Inductive voltage transformers

Language: English, French
International Standard IEC 60044-2 has been prepared by IEC technical committee 38: Instrument transformers.
This consolidated version of IEC 60044-2 is based on the first edition (1997) [documents 38/162/FDIS and 38/175/RVD], its amendment 1 (2000) [documents 38/244/FDIS and 38/254/RVD] and its amendment 2 (2002) [documents 38/286/FDIS and 38/290/RVD.
It bears the edition number 1.2.
A vertical line in the margin shows where the base publication has been modified by amendments 1 and 2.
Scope
This part of IEC 60044 applies to new inductive voltage transformers for use with electrical measuring instruments and electrical protective devices at frequencies from 15 Hz to 100 Hz.
Although this standard relates basically to transformers with separate windings, it is also applicable, where appropriate, to auto-transformers. This standard does not apply to transformers for use in laboratories.
NOTE Requirements specific to three-phase voltage transformers are not included in this standard but, so far as they are relevant, the requirements in clauses 3 to 11 apply to these transformers and a few references to them are included in those clauses (e.g. see 2.1.4, 5.1.1, 5.2, and 11.2).
Clause 13 covers the requirements and tests, in addition to those in clauses 3 to 12, that are necessary for single-phase inductive protective voltage transformers. The requirements of clause 13 apply particularly to transformers which are required to have sufficient accuracy to operate protective systems at voltages that occur under fault conditions.