How does dynamic braking differ from friction braking?

Dynamic braking differs from friction braking primarily through the application of DC voltage to control the braking process. In dynamic braking, the motor is disconnected from its power source and acts as a generator. When the motor slows down, it converts kinetic energy into electrical energy, which is typically dissipated in a resistor, effectively slowing the motor down without relying on traditional mechanical means.

This method is particularly efficient because it does not rely on the physical contact and wear of components as friction braking does. Friction braking generates heat through the contact of brake pads with a rotor or drum, which can lead to wear and a decrease in efficiency over repeated use. Additionally, dynamic braking can provide smoother deceleration and can be controlled more precisely as it utilizes the motor's electrical characteristics.

Understanding the nuances between these braking systems is important in applications where effective stopping power and energy conservation are critical.