Definition Of Power Quality According To Ieee
For policies and procedures of the subcommittee and its working groups refer to the policies and procedures of the ieee pes transmission distribution committee.
Definition of power quality according to ieee. The problem of definition of power quality assessment for low voltage dc distribution networks is addressed with focus on. Frequency close to the rated value and smooth voltage curve waveform resembles a sine wave. Electric power quality is a measure of the degree to which the voltage frequency and waveform of a power supply system conform to established specifications. To use the ieee c57 110 standard 3.
Power quality events charles perry epri chair task force for pq characterization e. Ieee 1531 guide for the application and specification of harmonic filters. Power quality is characterized by parameters that express harmonic pollution reactive power and load. Treatment of power quality solutions including custom power equipment applications and evaluation of power system compatibility with end use equipment.
This leads to different power definitions fig. The active power p kw which is responsible of the useful work is associated with the portion of. Good power quality can be defined as a steady supply voltage that stays within the prescribed range steady a c. Also v oltage sag is classified as a short duration voltage variation phenomena which is one of the general categories of power quality problems.
Unbundled power quality service is paid much attention to under the circumstances of deregulation and diversification of needs of customers for quality and price of electric power. One of the features of flexible reliable and intelligent electrical energy delivery system friends is the unbundled power quality service. History of ieee std 1159 working group for power quality monitoring formed in nearly 20 years ago in response to a need for standardizing burgeoning power quality monitoring manufacturing industry and the use of these monitors in the field by utilities and end users. Randy collins clemson university chair working group for monitoring electric power quality 2008 ieee t d conference chicago il april 23 2008 2 2 pq monitoring standards ieee standards.
Ieee 1564 guide for voltage sag indices. Ieee c2 national electrical safety code. Voltage sag or voltage dip iec term is defined by the ieee 1159 as the decrease in the rms voltage level to 10 90 1 90 for en 50160 of nominal at the power frequency for durations of cycle to one 1 minute. Ieee 1433 standard glossary of power quality terminology.
Definition of meaningful electr. Ieee c62 41 recommended practice on surge voltages in low voltage ac power circuits.