A turbo generator comprises a turbine that drives a generator to produce electric power. Large steam powered generators are used at power plants to produce electricity for the grid whereas smaller turbo generators driven by gas turbines are commonly used as auxiliary power units.
The noise produced by turbo generators is a combination of the turbine noise and the generator noise. Low frequency tonal components are present in the spectrum at multiples of the supply frequency that arise from the rotation of the alternator in the generator. Different turbines will emit unique acoustic signatures due to the varying sources of noise. Depending upon the type of turbine driving the generator, further tonal components may be present.
Sonobex can supply bespoke noise control solutions that are tuned to the most pervasive frequencies in the spectrum of a turbo generator.