locked rotor current > FLA?
locked rotor current > FLA?
(OP)
Is locked rotor current always, and I do mean always greater than full load current. I know shaded pole motors LRA is close to FLA,
is their LRA always greater than their FLA? Is there ever a motor or condition where FLA could be greater than LRA?
is their LRA always greater than their FLA? Is there ever a motor or condition where FLA could be greater than LRA?





RE: locked rotor current > FLA?
So curious minds what to know why you are asking this question? Have you observed something along these lines?
"You measure the size of the accomplishment by the obstacles you had to overcome to reach your goals" -- Booker T. Washington
RE: locked rotor current > FLA?
RE: locked rotor current > FLA?
In the case of torque motors locked rotor amps and FLA are often equal.
A wound rotor motor may be configured as a torque motor with lots of rotor resistance. In this case, the locked rotor amps may be less than rated full load amps. Of course the motor will not produce full load power with that much rotor resistance.
Actually, without supplementary cooling, the locked rotor amps will be a lot less than rated full load amps.
Bill
--------------------
"Why not the best?"
Jimmy Carter
RE: locked rotor current > FLA?
RE: locked rotor current > FLA?
When that discussion came up I also found this in regards to motors I have found helpful over the years, http://literature.rockwellautomation.com/idc/group...
MikeL.
RE: locked rotor current > FLA?