Harmonic Filters

Due to the internal rectification of AC to DC voltage, Motor drives generate a non-sinusoidal input current. This is known as Harmonic Current Distortion (THDi). The distorted current waveform will flow into the supply impedance and generate Harmonic Voltage distortion (THDv)

Limits are imposed by network suppliers to the level of Harmonic Distortion (THDi or THDv) that a particular installation may contribute to the supply network.

This affect can also cause issues with generators as the current distortion flows through the alternators impedance.

Centralian Controls has experienced engineers who can review your project and recommend the most effective harmonic mitigation solution to ensure any limits are observed. From small IP20 individual requirements to large floor standing IP54 requirements we can offer both 3 and 4 wire solutions.

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Royal Park South Australia 5014