Dc braking principle

Dc braking principle. When asynchronous motor stator winding zhongtong into direct current, the magnetic field generated by the constant magnetic field will be the space www.facebook.com/guohong.trading position unchanged, and the speed of the rotor because of its inertia continues with its original spin, at this point, the rotation of the rotor cutting the static magnetic field and produce brake torque, system stored kinetic energy is ac motor converted into electrical energy consumption in the rotor circuit of the motor, thus to achieve the effect of fast brake motor. In order to guarantee the safety of the motor, dc brake is best used with braking energy. Inverter dc brake setting, dc fan motor brake basically set the following three contents 2.1, started to dc brake starting frequency 2.2, applied to the stator winding voltage dc brake. As a result of the stator winding dc resistance is very small, so lamination the dc brake voltage adjusting range is usually the circuit dc voltage of the 0 ~ 10%; 2.3, the braking time. Braking time impossible and actual braking time coincide, in order to ensure the braking effect, usually set slightly larger;