CEI CLC/TR 50462 : 2009
Current
The latest, up-to-date edition.
RULES FOR THE DETERMINATION OF UNCERTAINTIES IN THE MEASUREMENT OF THE LOSSES ON POWER TRANSFORMERS AND REACTORS
Hardcopy , PDF
English
01-01-2009
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
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