DISTRIBUTION CUSTOMER POWER QUALITY EXPERIENCE

In recent years there has been a significant increase in the number of disturbance producing loads and ''sensitive'' loads being utilized by society resulting in increased customer complaints being directed at utilities. B.C. Hydro is taking a proactive approach in determining it s own power quality by monitoring voltage disturbances and harmonic le vels dictated by a power quality survey program. This paper will prese nt and discuss in detail some of the key objectives of the power quali ty program. A methodology for quantifying power quality as experienced by customers in a graphical form will be presented. Several detailed case studies will be presented to illustrate the methodology. Estimati ng algorithms for the duration and magnitude of the various types of p ower supply disturbances will be developed and illustrated.