Capacitor element Device consisting essentially of two electrodes separated by a dielectric (IEV 436-01-03). Capacitor unit Assembly of one or more capacitor elements in the same container with external terminals (IEV 436-01-04). Capacitor bank Multiple capacitor units connected so as to act together (IEV 436-01-06). Capacitor The word “capacitor” is used when it is not necessary to put particular...

Power Factor Correction The active power produced by the active current can alone be turned into an effective use for the consumer; while the reactive power produced by the reactive current does not yield usable power, and consequently, is not registered on the active performance meter. The reactive power has, however, a negative effect on generators, transformers, and conductor lines, while causi...

Harmonics in power system. In an electric power system, a harmonic is a voltage or current at a multiple of the fundamental frequency of the system, produced by the action of non-linear loads such as rectifiers, discharge lighting, or saturated magnetic devices. Harmonic frequencies in the power grid are a frequent cause of power quality problems. Harmonics in power systems result in increased hea...

Power Quality Solutions and Energy Savings One of the most significant changes in the  Power Quality industry in the past five years is  the method of selling Power Quality solutions. Originally, Power Quality solutions were sold as  an insurance policy to avoid potential damage from power disturbances such as transients,voltage sags, interruptions or harmonics. Today, many Power Qu...