When change mini electric motor of motor stator voltage,be able to get a different set of mechanical characteristic curve,to get different speed.Due to the torque of the motor and the voltage is proportional to square,thus maximum torque decreased a lot,the smaller range of speed regulation,and makes difficult to apply general generator stator squirrel-cage motor.In order to enlarge the speed range,regulating speed rotor resistance value should be adopted for the big cage motor,such as torque motor,USES for regulating wholesalemotor.blogspot.com speed or frequency on the wound rotor motor series resistor.
In order to expand the stable operation range,speed above 2:1 Settings when feedback control should be adopted to achieve automatic adjustment speed.Regulating speed control is a main device can provide voltage change of power supply,the current commonly used ways with saturable reactor in series voltage regulator,autotransformer and thyristor voltage regulation.Thyristor voltage regulation mode is the best.Regulating Dongfeng Electric speed control features:
regulating speed control circuit is simple,easy to realize automatic control; Voltage regulation in
the form of heat transfer differential power consumption in the rotor resistance,low
efficiency.Regulating speed generally applicable to the production machinery under 100 kw.
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