Determining the source of noise in a motor is often much more challenging than correcting it. However, a methodical approach to investigating the noise can narrow down the possible causes and therefore make it easier to resolve the noise issue. In this session we will address the causes and characteristics of the primary sources of noise in AC motors. Learning objectives:

• Learn about the possible sources of noise in a motor

• How to investigate motor noise

• Explore the nature of magnetic noise, mechanical noise and windage noise

• How to reduce or eliminate noise intensity

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