Each Seattle ALWEG train is powered
by eight 100 horsepower motors, one for each set of driving wheels.
Driving power is transmitted from the driving motor by propeller
shafts via a double reduction gearbox to the wheels. Braking is
an air operated system in conjunction with dynamic braking. Failsafe
mechanisms are in place in case of air pressure failure. The heart
of the train's electrical system is the main control package,
which controls all acceleration and deceleration functions. Trains
are powered by 600 volts DC, obtained from contact rails, positive
and negative, running alongside the beam and picked up by current
collector shoes installed under the cars. The maximum acceleration
rate is 2.5 m/h/s (miles per hour per second.) The maximum normal
deceleration rate is 3.3 m/h/s and the emergency deceleration
rate is 5.7 m/h/s.)
Each Seattle ALWEG train is powered
by eight 100 horsepower motors, one for each set of driving wheels.
Driving power is transmitted from the driving motor by propeller
shafts via a double reduction gearbox to the wheels. Braking is
an air operated system in conjunction with dynamic braking. Failsafe
mechanisms are in place in case of air pressure failure. The heart
of the train's electrical system is the main control package,
which controls all acceleration and deceleration functions. Trains
are powered by 600 volts DC, obtained from contact rails, positive
and negative, running alongside the beam and picked up by current
collector shoes installed under the cars. The maximum acceleration
rate is 2.5 m/h/s (miles per hour per second.) The maximum normal
deceleration rate is 3.3 m/h/s and the emergency deceleration
rate is 5.7 m/h/s.)