ALTERNATOR
These alternators are available in two basic versions. One version includes a solid-state regulator
and forms a complete charging system. The other version does not include a regulator.
However,
it
is equipped with a
blade terminal for connection to a remote regulator.
The alternator portions of these charging systems are three-phase, diode rectified machines with
die cast
aluminum housings to provide the necessary strength while keeping the weight to a
minimum. The weight of a
typical alternator, excluding pulley, is approximately
10
pounds.
TYPICAL ALTERNATOR MODEL
The field for the alternator is wound concentrically about the core of the
rotor.
The field structure
contains
twelve poles (six sets of pole pairs) and the rotor is dynamically balanced after assembly
to minimize vibration. The rotor is supported in the alternator by a pair os sealed ball bearings.
Field current of approximately
2.5
Amperes is supplied to the field through copper slip rings and a
set of
electrographite brushes. The slip rings ar small
in
diameter for extended brush life.
NOTE: The design
is
a sealed brush design and therefore
is
suitable for marine applications. The
brusholder is easily removed for either inspection or replacement. Removal does not require the
disassembly of the alternator.
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