Going from 800 HP to 1200 HP motor - driving pump
Going from 800 HP to 1200 HP motor - driving pump
(OP)
I have a project that will require me to use a (4160)1200 HP motor in place of the old (4160)800 HP motor. If by looking at the pump required torque curve and the new motor torque/current curve. Is this a viable way to determine the size CT's I need to purchase, or is there a better way.
Thanks,
Tim
Thanks,
Tim





RE: Going from 800 HP to 1200 HP motor - driving pump
Startup time length and intervals betweens startup are still the same also, right? (You are not going to be changing how the motor + pump operate, that is.)
RE: Going from 800 HP to 1200 HP motor - driving pump
RE: Going from 800 HP to 1200 HP motor - driving pump
Yes, motor speed is same. startup time might be faster due to bigger motor,more starting torque. The motor will run 24/7 once we have it pumping, so no changes on pump operation.
dpc,
Motor FLA is 156, current CT's are 150:5, no multi-ratio.
All,
Got my hands on pump curve and run data,pump usally runs at full load, which means we will use about 66% of the rated capacitiy of the 1200 HP. Outside of start-up and the changes I've got to make to my protection, I'm guessing I will be OK with current CT's?