9-3 Coupe (9400) L4-2.0L Turbo (B204) (1999)
Alternator: Description and Operation
Generator Design
The generator is of AC type, with a built-in charge regulator.
The generator is driven by the engine via a multigroove V-belt from the crankshaft pulley.
The gear ratio is 1:2.8 for petrol engines and 1:2.9 for diesels.
Three different generators are available for the Saab 9-3:
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90 Ampere
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120 Ampere
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130 Ampere
the 120 A generator being used in diesel-engined vehicles.
Stator
The stator is fixed, and consists of sheet metal with grooves that are insulated from each other and pressed together to form a rig core. The wave-shaped
stator windings are carried in the grooves. They are star- or delta-connected, with 120°C spacing, and deliver a three-phase alternating voltage to the
rectifier.
Rotor with slip rings