Brake resistors on the roof of a motor car of an electric train ER2R
Brake resistors in the undercarriage of a motor car of an electric train ED4 M
Brake resistor - a resistor that is the electrical load of the generator during rheostatic braking .
During dynamic braking, the kinetic energy of the generator rotor is converted into electrical energy. Next, electricity is supplied to the braking resistors, where it is dissipated in the form of heat. The change in braking force occurs due to a change in resistance. Moreover, the lower the resistance, the greater the braking force, and vice versa.
Application
Due to the irrational use of energy, they try to replace rheostatic braking with regenerative braking . But so far you can still see electric trains with batteries of brake resistors on the roof of motor and auxiliary resistors on the roof of trailed cars.
See also
- Regenerative inhibition
- Regenerative rheostatic braking