The same engine and alternator can be supplied in three builds. The choice affects noise, weather protection, fuel autonomy, shipping and price.
Lowest price. For installation inside a generator room or a building that provides noise control and weather protection. Easiest to service. Noise around 95–105 dB(A) at 1 m.
A steel sound-attenuated enclosure, usually with a base fuel tank, typically 70–80 dB(A) at 7 m. Standard for sizes up to about 500 kVA used outdoors, on construction sites, in rental fleets and near buildings. Adds roughly 10–25% to the price of a small set.
For about 500 kW and above: the set is built into a 20 ft or 40 ft container with sound insulation, ventilation, lighting and often a fuel tank. Ships as a container, is secure on site and can be moved. Adds roughly 15–25% to the price of a 1,000 kW set.
For sites at 45–50 °C ambient, ask for a high-ambient radiator (rated for 50 °C). It costs a little more but prevents derating and overheating, and should be checked on every quote for Africa and the Gulf.
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