Telma Flashcards
(15 cards)
Telma Retarder is attached to the
Rear axle of the apparatus
The drive shaft is
cut, balanced and attached to two rotors that rest near the retarder with a narrow clearance.
Electromagnets with alternate polarities are located in the
stator
Polarities
the direction of magnetic or electric field
As currents flow through the stator coils
a magnetic field is created which passes through the rotors
The magnetic field creates eddy currents in the rotor which
oppose rotor rotation and slow the drive line
Telma has a _____ connected to the brake pedal
a pressure manifold
Telma has a low speed switch which deactivates the retarder when speed is below
2 to 3 mph
Telma has a group of ____
4 lights, one for each stage activated
3 PSI
25%
5 PSI
50%
7 PSI
75%
10 PSI
100%
Each stage of the telma draws approximately
50-60 amps
When all 4 stages activate, the draw is approx
250 amps