Sound-attenuated generator sets

A series of 100, 125 and 150 kW tier 3 generator sets with sound-attenuated enclosure systems has been added to the Cummins product range. With a sound level of 67.5 dB(A), the 100 kW unit is claimed to be one of the quietest generator sets available at that power node.

The packages use EPA tier 3-certified generator sets featuring the Cummins low-emissions QSB7 diesel engine.

Available in steel or aluminium with two levels of sound attenuation, the generator set and enclosure packages are intended for all-weather outdoor use wherever local ordinances or circumstances require sound abatement.

The quieter sound-attenuation package features an exhaust silencer and steel construction with sound-absorbing material which limits sound levels to 67.5 dBA for the 100 kW unit, 68.6 dBA for the 125 kW unit and 69.6 dBA for the 150 kW unit (measured at full rated load). The weather-protective generator set enclosure package includes an industrial exhaust silencer and steel construction without added sound-absorbing features.

The design also allows for the enclosed generator packages to run at full standby load in up to 53°C ambient air temperature.

In addition to sound-attenuating features, the enclosures are designed with convenient access doors for the engine and alternator service points. Forklift pockets on the skid base and built-in two-point lifting brackets simplify installation at the job site.