ASSEMBLING A ROTOR OF AN ELECTRICAL GENERATOR

It is described a method of assembling a substantially cylinder symmetrical rotor house (101) and a substantially circular strengthening ring (102) of an electrical permanent magnet generator, in particular of a wind turbine, the method comprising: using an assembling equipment (103) comprising a holder ring (104) and plural, in particular at least four, contact rods (105a,b,c,d) having contact surfaces (106a,b,c,d) at a respective longitudinal end being adjustable regarding their positions; contacting plural rotor house locations (107a,b,c,d) of an outer surface (108) of the rotor house (101) by the contact surfaces (106a,b,c,d); exerting a force (F) via at least one contact surface (106a,b,c,d) to the rotor house location (107a,b,c,d), in order to adjust an actual shape of the rotor house (101) in order to achieve a target shape of the rotor house (101); mounting the strengthening ring (102) to the rotor house (101) at a first axial end.