Braking system of electric alternating current motors for loading of loads. (Machine-translation by Google Translate, not legally binding)

摘要

Braking system of electric motors of alternating current for descent of loads, characterized in that to achieve the necessary braking torque, the motor is disconnected from the supply network and acting as a generator by effect of the rotation provided to the rotor by the mechanical load, the alternating electric generating current is rectified and with the continuous current thus obtained, the inductor field itself is supplied, the resistive torque of the motor being acting as a generator, equivalent to the braking torque. (Machine-translation by Google Translate, not legally binding)