Title :
The effect of measuring system accuracy on power quality measurements in electrical arc furnaces
Author :
Boulet, Benoit ; Wikston, James ; Kadar, L.
Author_Institution :
Hatch Assoc. Ltd., Mississauga, Ont., Canada
Abstract :
With more stringent power quality requirements imposed by electric utilities on electrical furnace operators, the accurate measurement of electrical parameters becomes more important. The overall performance of a power quality measurement system is a function of the accuracy of all of its transducers. This paper, through the use of measured electrical arc furnace data, investigates the sensitivity of power quality calculations to the dynamics of instrument transformers and sampling devices. Improved accuracy in measurements with real-time digital compensating filters is demonstrated using the furnace data
Keywords :
arc furnaces; harmonic distortion; industrial power systems; instrument transformers; measurement errors; power supply quality; power system harmonics; power system measurement; calculation sensitivity; electric utilities; electrical arc furnaces; harmonic distortion measurements; instrument transformers; measuring system accuracy; power quality measurements; real-time digital compensating filters; sampling devices; transducers; Current measurement; Distortion measurement; Electric variables measurement; Filters; Frequency; Furnaces; Instrument transformers; Power measurement; Power quality; Sampling methods;
Conference_Titel :
Industry Applications Conference, 1997. Thirty-Second IAS Annual Meeting, IAS '97., Conference Record of the 1997 IEEE
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-4067-1
DOI :
10.1109/IAS.1997.626365
