1.4. Concept of load
For a motor, it is called load, the mechanical device which imposes the couple of characteristics “Speed – Torque”. (exp For an elevator, it is the speed of displacement which imposes the frequency of rotation, and the mass to move which impose the torque).
For a generator, the electrical device that imposes the pair of characteristics “Voltage – Current” is called a load. (The lighting of a bicycle headlamp is imposed by the voltage at these terminals.For constant lighting, it is necessary to drive at a constant speed).
