The higher the altitude, the lower the atmospheric pressure, ie the lower the amount of oxygen per volume in the atmosphere. With rarefied air, the performance of the generator’s engine decreases. This is because the engine starts to receive less air and less fuel to be burned inside the cylinders, resulting in less power available. Alternator also have losses above certain altitude…
In light of the above, whenever we have to install a generator in a high altitude location, we must always take into account power losses equivalent to the expected altitude for the installation.
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