motor lra
- Thread starter maguire
- Start date
What I am thinking is if a motor reaches it's LRA can that somehow be used to cut it's power some sort of current sensing device or would a motor have to be designed with a specific LRA in mind I know there are other ways of cuting motor power and there is (are) regs to ensure this
but an unattended motor? yes beams, as in lifts which will auto reverse but I thought if a motor is under stess can that be used
Dev
but an unattended motor? yes beams, as in lifts which will auto reverse but I thought if a motor is under stess can that be used
Dev
Errrr
Isn't that part of the job of the motor overload module in a motor starter?
Isn't that part of the job of the motor overload module in a motor starter?
it's built into some inverters as far as I know.. it monitors the current drawn and can shut off if the rise is too steep too fast...
An overload should cut the power to the control circuit should the motor go over FLC for a determined period, we don't tend to get too many burned out overloads however a lot of the larger units are not thermal i.e. they are electronic or dashpot.
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