BISOPE series 58- Motor-related electrical and vibration diagnostic terms

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In order to diagnose motors (electric motors), you must understand the operating principles of the motor, but first you must know the corresponding terminology. If you cannot understand the terminology used by motor experts and public affairs and maintenance teams (electrical, relay, mechanical), you will inevitably have poor data for important analysis. Then comes the diagnosis. Of course, there are diagnostic terms, but it can be said to be the same way a doctor learns basic anatomy and learns medical terminology first. Here, motor-related electrical terms and terms for vibration diagnosis are defined.

Motor terminology

 

number of revolutions

It is the degree of rotation speed and is expressed as RPM (Revolution Per Minute).

 

Torque

It refers to rotational force and is expressed as kgfm or Nm.

 

Inertia

It refers to the property of an object to maintain its state of motion unless an external force acts on it.

https://blog.naver.com/vs72

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BISOPE series 56- Vibration and machine condition

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If the body temperature measured in a person is too high or too low, everyone agrees that they are not feeling well. I think this premise is natural because we have learned it through numerous results for a long time even if we do not know science. An auditor asked a question. He appeared to be a mid-level researcher, and this was a novel idea I had never heard before. “Is high vibration a bad condition for the machine? Why do you say that premise is obvious?” All the other auditors next to him looked at him strangely, but I could only answer indirectly, “Vibration, like temperature, expresses a state.”

 

Vibration signals include the state of the machine.

This is written on the front page of the basic textbook of a renowned professional company that performs equipment diagnosis through vibration. ‘The vibration signal you are currently measuring from the machine contains all the defect signals of the machine. By analyzing these signals well, the machine can tell where the pain is.’

 Now let me say it again. ‘The state of a moving machine can be judged by vibration.

 

​https://blog.naver.com/vs72

#PDM, #predictive maintenance, #equipment diagnosis, #vibration, #machine diagnosis, #vibration analysis, #vibration defect, #condition diagnosis, #CBM, #machine condition and vibration