POWER TRANSFORMERS - PART 19: RULES FOR THE DETERMINATION OF UNCERTAINTIES IN THE MEASUREMENT OF THE LOSSES ON POWER TRANSFORMERS AND REACTORS
International Electrotechnical Committee
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Power measurement, systematic deviation and uncertainty
6 Procedures for no-load loss measurement
7 Procedures for load loss measurement
8 Three-phase calculations
9 Reporting
10 Estimate 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
Bibliography
Describes the procedures that should be applied to evaluate the uncertainty affecting the measurements of no-load and load losses during the routine tests on power transformers.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 14 |
