Automatic classification of power generators - G1, G2, G3 and G4 classes.

PN-ISO 8528 standard: AC generating sets powered by a piston internal combustion engine defines the design criteria of generators in terms of internal combustion engine, AC generator, and their classification categories in terms of quality and ecological (efficiency of the unit). These classes can be fully tested using a resistive or resistive-reactive load bank (if extended tests by some manufacturers are necessary).