Railway vehicles need a brake system to operate safely and to control the speed easily and quickly. The braking system is classified as mechanical braking, which converts kinetic energy into heat, and electrical braking, which converts power energy into heat. When kinetic energy is converted back into electrical energy, it can slow down or stop an electric motor and this energy is dissipated using a power resistor.

Brake resistors have high power ratio and low ohm values. Railway vehicle motors work like generators during braking such generate regenerative energy and this energy damages the driver, other electrical equipments. A regenerative braking system radiates the regenerative energy onto the resistors and enables the voltage of the power electronics system to be reduced. This system is necessary to control the speed of the train and to dissipate the regenerative power produced by reducing the speed of high-speed trains.Railway Braking Resistors are used for the absence of mechanical wear in railway vehicles, to suppress voltage fluctuations and to absorb regenerative power.