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What is the slip rate of asynchronous and asynchronous motors?
Electric motors are a general term for electric motors and generators, usually divided into two categories: DC motors and AC motors. AC motors are divided into asynchronous motors and synchronous motors.
What is asynchronous?
Answer: The speed of the rotor of an asynchronous motor must be lower than the speed of the rotating magnetic field of the stator. The two speeds cannot be synchronized, so it is called "asynchronous".
What is the slip rate of an asynchronous motor?
Answer: The difference between the synchronous speed and rotor speed of an asynchronous motor is called slip, and the percentage of the ratio of slip to synchronous speed is called the slip rate of the asynchronous motor.
What are the regulations on the temperature of motor bearings?
Answer: When the ambient temperature is+35 ℃, the sliding axis should not exceed 80 ℃, and the flow axis should not exceed 100 ℃. (When the quality of the oil is poor, it should not exceed 5 ℃)
How is the temperature resistance of insulation materials divided?
Answer: China is currently divided into six levels, namely A, E, B, F, H, and C. (1) The maximum allowable working temperature for Class A insulation materials is 105. (2) The maximum allowable working temperature for E-grade insulation materials is 120 ℃. (3) The maximum allowable working temperature for B-class insulation materials is 130 ℃. (4) The maximum allowable working temperature for F-grade insulation materials is 155 ℃. (5) The maximum allowable working temperature for H-grade insulation materials is 180 ℃. (6) The maximum allowable working temperature for C-grade insulation materials is above 180 ℃.
What factors are related to the maximum torque of asynchronous motors?
Answer: (1) The maximum torque is proportional to the square of the voltage. (2) The maximum torque is proportional to the leakage reactance
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