Duty cycle and special motors

[Brandon002]

Do you use the FLA conductors, OCPD and short circuit ground fault protection?


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[ptonsparky]

I did.
Now, in what context are you asking because your question isn’t clear?

 

[Brandon002]

I did.
Now, in what context are you asking because your question isn’t clear?

I know that if it a normal motor
You would use FLC for conductors and short circuit/Ground fault protection
And for the OCPD you use the FLA
I was just wondering when it comes to the duty cycles , I was wondering if it the same when you’re sizing the OCPD and short circuit/ground fault protection


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[ActionDave]

I know that if it a normal motor
You would use FLC for conductors

You would start with the type of motor and the table values at the end of art. 430

and short circuit/Ground fault protection

Use 430.52

And for the OCPD you use the FLA

That goes back to sizing for short circuit and ground fault protection

I was just wondering when it comes to the duty cycles , I was wondering if it the same when you’re sizing the OCPD and short circuit/ground fault protection


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You would use 430.32