What is the difference between a three-phase asynchronous motor and a regular motor?
Three-phase asynchronous motor has high efficiency, energy saving, low noise, small vibration, and the advantages of reliable performance, can make using of the drive for different mechanical: such as fan, compressor, water pump, crusher, cutting machine and other equipment, and is available for coal mining, mechanical industry, power plants and various industrial and mining enterprises as a prime mover. Thank you for your reference. I hope I can help you.
Torque motor: a special motor with soft mechanical properties and wide speed range. This motor is not powered by constant power output but by constant torque output. Torque motor includes: dc torque motor, ac torque motor, and brushless dc torque motor. Difference: torque motor is to in the case of lower speed without changing the output torque, motor speed when lowering power supply voltage drops, but the output torque constant, current is the same. Ordinary motors cannot be slowed down by reducing pressure, which will cause the output torque to decrease and the current increase, which will burn the motor. Change frequency converter control: to confirm the torque motor that is controlled is ac asynchronous motor or synchronous motor because the frequency converter is used on ac. It is also important to confirm that the maximum current of the frequency converter is greater than or equal to the current of the torque motor, since the torque motor is able to work in a blocked state.
Three-phase asynchronous motor cooling fan is fixed on the motor shaft, the same as the rotation speed of the motor, low frequency is run, the fan is running at low speed, the cooling capacity drops greatly, the heat generated by the motor can't send out, serious when burning motor. The structure and pressure capacity of the inverter motor are specially designed to accommodate high speed and high harmonics. Motor has the branch of general motor and frequency conversion motor, called main appearance is different from ordinary motor frequency conversion motor frequency conversion motor is packed with centrifugal fan forced cooling, this ensures the motor at low frequency and high frequency heat dissipation is good, and frequency conversion motor internal structure can adapt to the high frequency operation of specific working frequency range see nameplate. General motors generally allow only running under 50hz.
