What is the difference between motor series excitation and parallel excitation

  • Date:2020-05-11
  • The parallel excitation motor Vacuum Cleaner Motors has hard mechanical characteristics and is convenient for speed regulation. It is mainly used for machine tools, ball mills, steel rolling mills, and paper machines. The series excitation motor has soft mechanical characteristics, large overload capacity, and large starting torque. Locomotive, trolleybus, crane, elevator.The mechanical characteristics of series-excited motors are hyperbolic, and the speed decreases rapidly with increasing torque. It is called soft characteristics. is natural mechanical characteristics is not equal to zero.

    It is artificial mechanical characteristics. Series motors are widely used in power tools, self-kitchen supplies, and floor care products due to the wide range of speed adjustment and large starting torque.Parallel-excited motors are commonly used in production machinery where the speed is not affected by the load and it is convenient for speed regulation in a wide range. Such as large lathes, gantry planers.Single-phase series-excited motors are single-phase AC asynchronous motors, which are both AC and DC, so they are also called AC-DC dual-use series-excited motors.

    Because of its high speed, small size, large starting torque and adjustable speed, it can be used on DC power supply or single-phase AC power supply, so it is widely used in power tools. The motor is mainly composed of three parts: a stator rotor and a bracket. The stator is composed of a salient pole core and an excitation winding zd group. The rotor is composed of a hidden pole core, an armature winding, a commutator, and a rotating shaft.

    A series loop is formed between the excitation winding and the armature winding through the brush and the commutator Fourth, the mechanical characteristics of the compound excitation straight zd flow motor The mechanical characteristics of the compound excitation DC motor are between the mechanical characteristics of the parallel excitation DC motor and the series excitation DC motor.The operating characteristics of compound excitation motors are between those of parallel excitation and series excitation motors. If the parallel excitation momentum has its main role, its operating characteristics are close to the parallel excitation motor, and if the series excitation momentum plays a major role, its operating characteristics are close to the series excitation motor.