Abstract: This is a harmonic absorber (14) for eliminating the harmonics occurring due to unbalanced loads in a network transformer (1), a power factor correction system (6) to correct the cos ? value of the system to which it has been connected and an electrical system comprising electrical loads (7), and it contains at least one harmonic hole circuit (13), which consists of power reactance inductors (13.1) and power capacitors (13.2), and a harmonic separating circuit (12), which separates the harmonics existing in the network from the other components in the network and then, in order to achieve the elimination of each individual harmonic achieved in this manner, applies them to the mentioned hole circuit (13).