Prony Brake
-It is an Absorption Dynamometers.
-Prony Brake is a simple mechanical brake in which friction torque is manually adjusted by varying the normal force with a handwheel.
-Shaft’ s torque can be measured at zero speed.
-However, Operation may be jerky because of the basic nature of dry friction.
-For Air – Cooling, No torque is available at zero speed.
-But for Water – Cooling, High speed and Torque can be handled well. (10,000 hp at 30,000rpm)