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GENERAL DESCRIPTION
The 85 class electric locomotive is employed in the
haulage of freight and passenger trains over the various lines
within the electrified area. General particulars are as follows:Voltage
Wheel arrangement
Mass
Axle load
Wheel diameter
Bogie wheel base
Total wheel base
Length over buffers
Overall width
Height from rail level to
pantograph lowered
Horse power
Maximum speed
Low tension supply
Dead hauling mass
1500 D.C.
CO - CO
120 tonnes
20 tonnes
1250 mm
4000 mm
14400 mm
19000 mm
2883 mm
4330
2700
115
120
125
mm
kW
km/h
D.C.
tonnes
Cab
The locomotive has a driving position at each end with
suitable accommodation for the enginemen.
Housed within the locomotive is the control equipment,
traction motor blowers, starting resistances, blower fans, and
motor alternator set.
Two electrically driven compressors are mounted on the
underframe, also the battery charger and batteries.
Traction Motors
There are six (6) traction motors, three on each bogie
giving traction on all wheels. Each traction motor is supported
by axle suspension bearings. A lateral hydraulic snubber is
provided on the bogie located adjacent to the inner axle. The
introduction of this type of snubber should improve riding
characteristics. In addition, two traction snubbers are used
to control swivelling of the bogie.
Shrunk onto the motor armature
meshes with a drive gear pressed onto
gear ratio between the pinion and the
by two figures, such as 79/20 for the
on this locomotive. The first number
shaft is a pinion that
the driving axle. The
drive gear is expressed
130 km/h gearing used
indicates the number of