Electric Motor Lifetime

[zlatkodo]

The term "motor lifetime" is used in many calculations.
There are also tables that predict motor life. This is a typical one.

Are there any standards, rules, recommendations or any obligations of the manufacturer's about what must be the motor life under nominal conditions?
Zlatkodo

 

[ozmosis]

To calculate realistic lifetime costs of standard AC motors when looking at energy payback times etc, there are numerous guides but this reference on page 4 is a reasonable guide.

http://leonardo-energy.org/repository/Library/PQGuide/7.Energy Efficiency/HEM.pdf

However, you can get nano-motors or MW motors. There's quite a range.

 

[electricpete]

As far as manufacturer obligation, anything other than warranty may not have much meaning (and even warranty may have fairly small meaning too if OEM is just going to pay for repairs and cost to plant is much larger).

The IEEE gold book provides some statistical analysis of electrical component reliability and lifetimes. It includes motors.


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(2B)+(2B)' ?