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Motor FLC

Discuss Motor FLC in the Commercial Electrical Advice area at ElectriciansForums.net

Looks like the overload has been set to 100% flc and not 58% although its in series with the motor windings which would explain why the overload isnt operating.
 
shouldn't the overload be set to the motor flc?
 
Spoon said:
shouldn't the overload be set to the motor flc?
Click to expand...

If its a Star/Delta starter and dependent on the position of the overload, it is usual for the O/L to be set to 58% of full load as it is monitoring only one set of the 6 wires thus only part of the actual load been drawn. Multiplying the FLC by 0.58 give you the correct setting for the motor to give it protection to its flc.


As the OP is no longer with us then its time to close the thread, if you wish to know more Spoon, then feel free to open a new one asking about this subject. :)
 

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