Comparison between DC and AC motor:
DC motor has the advantage of quick react, bigger starting torque and provide rated torque between 0 and rated rotation speed, but its advantage is also its disadvantage, because DC motor need to generate constant torque under rated torque, it will need commutator and carbon brush. But commutator and carbon brush will cause spark and carbon powder during motor rotation,it will damage the motor components and has the limit of application.
AC motor has no carbon brush and commutator, no need maintainence, hard and been used widely. But it will need complicated controlling technology if need to achieve the similar performance with DC motor. There are two types of AC motor: asynchronous motor and synchronous motor. There are three types of asynchronous motor as per the stator phase number: single phase asynchronous motor, two phaseasynchronous motor and three phase asynchronous motor. The structure of three phase asynchronous motor is simple, reliable and lower cost.
Technical parameter
Rated voltage: 220-240V
Rated frequency: 50/60HZ
Rated input power: 1200±5% W
Max vacuum degree: ≥ 22KPa
Max airflow: ≥2.7 m3/min
Max suction power: ≥350
Max efficiency: ≥31%
Speed of full open: 24000rpm
Direction of rotation: CCW when viewed from input airside
Insulation class: Single CLE
Insulation resistance: ≥50 MΩ
Dielectric strength: stator(1800V/S ≤5mA) Rotor(3600V/S ≤5mA)
Spark: ≤2
Noise: ≤98 dB(A)
Vibration: ≤15
Temperature rise: ≤90
Life: ≥800H
Certificate: CE, CCC
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