Introduction
1 Scope
2 Normative references
3 Definitions
4 Symbols
5 Power measurement, systematic deviation and uncertainty
6 Procedures for no-load loss
7 Procedures for load loss
8 Three-phase calculations
9 Reporting
10 Estimation of corrections and uncertainty contributions
Annex A (informative) - Example of load loss uncertainty
evaluation for a large power transformer
Annex B (informative) - Example of load loss uncertainty
evaluation for a distribution transformer
Annex C (informative) - General rules for the uncertainty
estimate
Annex D (informative) - Sensitivity coefficients for uncertainty
contributions due to phase displacement correction
of measurements at low power factor
Annex E (informative) - Model function for load loss
temperature correction
Annex F (informative) - Measurement of winding resistance
Bibliography