METHOD AND STATION FOR THE CONSTRUCTION OF A STATOR WINDING WITH RIGID BARS FOR A ROTARY ELECTRICAL MACHINE

摘要

Method and station (9) for the construction of a stator winding (3) with rigid bars (4) for a rotary electrical machine; an insulated wire (12) of electrically conductor material and provided on the outside with an insulating layer (14) is unwound from a coil (11); a final end of the insulated wire (12) is bent in a "U" shape so as to create a bar (4) having two legs (5) connected to one another by a cusp (6); the insulated wire (12) is transversely cut to separate the rigid bar (4) from the remaining part of the wire (12); and the bar (4) is inserted into a stator slot of a magnetic core (2) of a stator (1); furthermore, the electrical conductivity is measured between the core (13) and the outer surface of the insulated wire (12) by means of a first electrode (25) electrically and permanently connected to the core (13) of the insulated wire (12) and a second electrode (26), which rubs against the outer surface of the insulated wire (12).