TABLE V: PROPULSION SYSTEM COMPONENTS DESCRIPTION (Cont.)
REF.
NO.
COMPONENT FUNCTION
TCI
Truck Control Interface
(17FL373)
Provides the main interface between the various truck
systems, controls, and equipment and is used in
conjunction with the DID by maintenance personnel.
TH1 54 Alternator Field Thyrite (Varistor)
Discharges the Alternator field when the AFSE is first
turned off.
VAM1 46
Voltage Attenuation Module
(17FM702)
Attenuates the three high voltage outputs applied to each
phase winding of Traction Motor 1 to a level acceptable
for use by the Analog I/O card in the PSC.
VAM2 46
Voltage Attenuation Module
(17FM702)
Attenuates the three high voltage outputs applied to each
phase winding of Traction Motor 2 to a level acceptable
for use by the Analog I/O card in the PSC.
E2-46 Electrical Propulsion System Components E02014 3/01
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