9-3 Convertible (9400) L4-2.0L Turbo (2.0 HOT) (2003)
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The stator is fixed, and consists of sheet metal with grooves that are insulated from each other and pressed together to form a rigid core. The
wave-shaped stator windings are carried in the grooves. They are star- or delta-connected, with 120 degree spacing, and deliver a three-phase alternating
voltage to the rectifier.
Rotor with slip rings
The rotor consists of two halves (claw-type poles) that mesh with each other. They are pressed onto the rotor shaft, and the number of claws on the rotor
is 12, i.e. there are 12 poles, with one half having six north poles and the other six south poles.
The excitation winding is fixed on the rotor shaft between the claw-type pole halves.
The excitation winding consists of a circular coil surrounded by the claw-type poles. An excitation voltage from the regulator is fed through the brushes,
which are in contact with the slip rings.
Integral fans
