Title :
Estimation of errors of voltage transformers on-site and the uncertainty of the estimate
Author_Institution :
SP Swedish Nat. Testing & Res. Inst., Boras, Sweden
Abstract :
A deregulated energy market needs demonstrably correct energy measurements for correct billing. Voltage transformers may be prone to drift implying a need for verification of their errors. A method to do this on-site using previous calibrations and comparative measurements has been developed and its uncertainty has been estimated.
Keywords :
calibration; energy measurement; invoicing; measurement errors; measurement uncertainty; potential transformers; billing; calibrations; comparative measurements; deregulated energy market; energy measurements; measurement error verification; uncertainty; voltage transformers; Calibration; Circuits; Energy measurement; Equations; Estimation error; Instrument transformers; Performance evaluation; Substations; Uncertainty; Voltage transformers;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 2000 Conference on
Conference_Location :
Sydney, NSW, Australia
Print_ISBN :
0-7803-5744-2
DOI :
10.1109/CPEM.2000.851052
