Harmonics-causes, effects, measurements, and analysis: an update

Rectification generates harmonic voltages and currents that can cause problems, e.g. insulation failures due to overheating and overvoltages, malfunction of solid-state equipment, communication interference, etc. The common addition of power factor correction capacitors to such a system generally in...

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Bibliographic Details
Published in:IEEE transactions on industry applications 1990-11, Vol.26 (6), p.1034-1042
Main Authors: Subjak, J.S., McQuilkin, J.S.
Format: Article
Language:English
Subjects:
240100 - Power Systems- (1990-)
AC SYSTEMS
ALLOYS
Applied sciences
BUILDING MATERIALS
CARBON
CEMENTS
Data acquisition
DATA ACQUISITION SYSTEMS
DATA ANALYSIS
Electrical engineering. Electrical power engineering
ELECTRICAL EQUIPMENT
ELECTRICAL INSULATORS
ELEMENTS
Exact sciences and technology
FAILURES
FOURIER TRANSFORMATION
Harmonic analysis
HARMONICS
Insulation
INTEGRAL TRANSFORMATIONS
Interference
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
NONMETALS
OSCILLATIONS
OVERVOLTAGE
Power capacitors
Power electronics, power supplies
Power factor correction
POWER SYSTEMS
POWER TRANSMISSION AND DISTRIBUTION
QUALITY ASSURANCE
RECTIFIERS
Solid state circuits
STEELS
Surges
SYSTEMS ANALYSIS
TRANSFORMATIONS
Voltage
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Description
Summary:Rectification generates harmonic voltages and currents that can cause problems, e.g. insulation failures due to overheating and overvoltages, malfunction of solid-state equipment, communication interference, etc. The common addition of power factor correction capacitors to such a system generally increases the likelihood of such problems occurring. Online data acquisition and analysis of the harmonic content of system voltages and currents may be necessary to identify the cause properly and recommend a solution. In response to these problems, a field-proven portable harmonic-measurement/analysis system is described, as well as the advantages and versatility inherent in its use. This portable, computer-based system provides on-site data collection, precise harmonic identification via a fast Fourier transform, data analysis, and report preparation via a custom spreadsheet. Specific examples involving the application of this measurement/analysis system in the cement, steel, and carbon industries are presented.< >
ISSN:0093-9994
1939-9367
DOI:10.1109/28.62384