Power factor correction and harmonic filtering
This chapter explains how power factor correction is implemented in LV electrical installation. Practical examples are given. Alternating current systems supply two forms of energy:
"Active" energy measured in kilowatt hours (kWh) which is converted into mechanical work, heat, light, etc
"Reactive" energy, which again takes two forms:
"Reactive" energy required by inductive circuits (transformers, motors, etc...),
"Reactive" energy supplied by capacitive circuits (cable capacitance, power capacitors, etc...)
EIG-L-power-factor-harmonic.pdf
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