KBR - Multiwave Passive Harmonic Filter

The load on industrial networks is more and more dominated by a high number of smaller and larger converters. They are used when purchasing new machines or when modifying present machines in order to increase energy effiency. The demand for inductive reactive power of fundamental harmonics decreases due to the reduction of motors operated directly on the mains and the reactive power which is generated by the converters’ harmonic currents increases. The power transformer’s impedance is a key factor, as this is where the major part of the harmonic voltages is generated, which in turn is responsible for faults at other consumer loads. KBR’s harmonic filters of the multiwave product group are the solution. Here, the passive version as a tuned filter circuit system is completely new. multiwave passive was developed especially for mains which show a high proportion of 5th and 7th harmonics, typical harmonic systems of industrial networks.