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How to identify the source of motor noise —— Part three?Thirdly, Noise control3.1 Reasonably design the structure of the motor to reduce noise(1) Correct selection of fan material and structure: a single-rotation high-speed motor can be a streamlined backward-inclined centrifugal fan. For a centrifu Read More

Secondly, the noise identification method2.1 Power off methodUsing the characteristics of electromagnetic noise that changes with the strength of the magnetic field, the size of the load current and the level of conversion, the power supply is suddenly cut off after listening to the no-load motor fo Read More

How to identify the source of motor noise —— Part one?Motors play a pivotal role in modern industrial production. During daily equipment inspections, we will find that the running motor emits various abnormal noises, and this long-term "abnormal operation" state seriously threatens the safe operatio Read More

When choosing a motor, how to choose power and torque?——Part three(Part three)Follow-up question: What if I use stepless speed regulation? In terms of motor output power and torque, what are the characteristics and differences between AC variable frequency speed regulation and DC speed regulation?An Read More

When choosing a motor, how to choose power and torque?——Part two(Part two)Also. The most commonly used is the analogy method to select the power of the motor. The so-called analogy. It is compared with the power of the electric motor used in similar production machinery.The specific method is: to un Read More

When choosing a motor, how to choose power and torque?——Part one(Part One)The power of the motor should be selected according to the power required by the production machinery, and try to make the motor run under the rated load.When choosing, you should pay attention to the following two points:① If Read More