Title :
A power system digital harmonic analyzer
Author :
Johnson, G.L. ; Mortensen, A.N.
Author_Institution :
Dept. of Electr. & Comput. Eng., Kansas State Univ., Manhattan, KS, USA
Abstract :
Summary form only given, as follows. This 68000 microprocessor-based instrument samples the waveform and calculates the first 64 harmonics of the 60-Hz fundamental voltage and current waveforms. The 64-Kbyte memory is adequate for one week of hourly samples for a power quality survey by an electrical utility. The analyzer is quickly attached to outputs of potential and current transformers by alligator clips and a current plug. The harmonic data are retrieved from the instrument by a portable computer. A separate PC program is then used for data analysis. Accuracy is about 0.1%, which is more than adequate for power quality surveys.<>
Keywords :
computerised instrumentation; computerised signal processing; data analysis; digital instrumentation; power system measurement; wave analysers; waveform analysis; 60 Hz; 64 kByte; 68000 microprocessor-based instrument; computerised instrumentation; computerised signal processing; current transformer; current waveforms; data analysis; digital harmonic analyzer; harmonic data; potential transformer; power quality; power system; voltage waveforms; Current transformers; Harmonic analysis; Information retrieval; Instruments; Portable computers; Power quality; Power system analysis computing; Power system harmonics; Voltage transformers;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1988. IMTC-88. Conference Record., 5th IEEE
Conference_Location :
San Diego, CA, USA
DOI :
10.1109/IMTC.1988.10873
