The main characteristics of the ZWS brushless DC motor
< High efficiency: there is neither copper loss nor iron loss in
the rotor of the brushless DC motor. The efficiency is 5%-12%
higher than the asynchronous motor with the same capacity
< Large power factor: the brushless DC motor doesn’t need an
exciting current from the electricity grid, and the power factor is
nearly 1.
< Great starting torque and small starting current: the
mechanical properties and regulating properties are similar to
other DC motors, so it has great starting torque, small starting
current and wide range of regulation. But there are no shortcomings
caused by brush commutator and the Mechanical commutation is
replaced with the electronic commutation.
< High motor output power: the output power is 30% higher than
the asynchronous motor with the same volume and the same highest
service speed.
< Strong adaptability: the steady-state deviation between the
working speed and the setting speed of the brushless DC motor is no
greater than ±1% when the supply voltage deviates from the rated
value by +10% or -15%, the ambient temperature increases or
decreases by 40K, and the load torque varies from the rated value
by 0-100%.
< The brushless DC motor has a self-operated speed regulating
system. It doesn’t need a starting winding as common synchronous
motors, and will not oscillate or desynchronize when the load
changes suddenly.
< The brushless DC motor has both the characteristics of the DC
motor and the conformations of the AC asynchronous motor.
< The brushless DC motor is suitable for long-time operation at
a low speed and frequently starting, which are impossible for the Y
series motor dragged by frequency-conversion speed regulator.
| The rotor of the ZWS rare-earth permanent brushless DC motor is
made of the rare-earth permanent magnetic material of good quality.
The motor replaces the carbon commutator with the position sensor
and has electronic commutation by electronic control circuits. It
keeps all the advantages of the traditional DC motors and overcomes
the weaknesses of the complicated conformations of the carbon brush
and the slip ring and high failure rate. |
Excellent characteristics of torque, good performance of torque at
a medium or low speed, and great starting torque
High accuracy of speed regulation, wide range of speed regulation
and strong capacity of overload
small moment of inertia of the rotor, high response speed, small
volume, light weight, great specific power (the ratio of the power
to volume)
Good braking characteristics
High efficiency, no exciting power and mechanical loss by carbon
brush and slip ring, and good energy conservation
Simple conformation, high reliability, good stability, strong
adaptability and convenient maintenance
Good resistance to vibration, low noise, little oscillation,
steadier operation and longer life
No radio interference and sparkle by brush, which is especially
adequate for dangerous fields of explosion, vile working
environments and frequently quick start
IP code: IP-54IP-55
very high rotating speed (60000rpm)
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