Mitsubishi RHF-B 144-400-50-20-A

The RHF-B 144-400-50-20-A is a passive harmonic filter manufactured by Mitsubishi specifically designed for use with 400V power systems. This filter is designed to mitigate the presence of harmonics in electrical systems, improving power quality and reducing the risk of equipment failure or damage.

Harmonics are electrical waveforms that deviate from the standard sine waveform of power systems. These harmonics can be introduced into the system by non-linear loads such as variable speed drives, uninterruptible power supplies, or switch-mode power supplies. When harmonics are present in a power system, they can cause a range of issues, including increased electrical losses, overheating of equipment, and interference with other sensitive devices.

The RHF-B 144-400-50-20-A filters out these harmonics by providing a low-impedance path for the unwanted currents. It consists of several capacitors and inductors that are connected in a specific arrangement to create a tuned circuit. This circuit allows the harmonic currents to flow through the filter, while the fundamental frequency currents continue through the system unaffected.