Telma Flashcards
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