NPG800, NPG800R and NPG800RE ensure the protection of synchronous generators connected to three-phase networks and driven by machines of all types: steam turbine, hydraulic or gas, diesel engines or gas engines. Their many protection functions and measurement possibilities destine them for generator sets varying from a few hundred kVA to several dozen MVA.

These functions associated with an R type modular unit, thus allow the NPG800R and NPG800RE to be used for quick replacement, by equivalence of function, of the relays in the CEE relays of the series 7000 (mechanical interchangeability.