Alternator - LUCAS: Description

Lucas ACR and A 133 model alternators use a 3-phase delta-wound stator and a 12-pole rotor. Both models use an integral, nonadjustable electronic voltage regulator, mounted in the slip ring end bracket.

The heat sink, rectifier, and terminal block assembly incorporates 6 silicon diodes, forming a full-wave rectifier bridge circuit, and 3 diodes which supply current to the rotor windings.