[Homeroast] Quest M3

raymanowen at gmail.com raymanowen at gmail.com
Wed Nov 10 01:46:27 CST 2010


"Do you have any experience with the new digital motor controlers, like my
Eaton Culter Hammer MVX 9000 AF Drive."

A New Cult drive by Cutler-Hammer?
In 3-phase-speak: "No, No, No experience," but the new front loader washers
use similar controls and 3-phase motors for home use. Variable speed
reversible with no moving electrical parts or starting switches- ideal set
up.

Your big old grinder with variable frequency power supply could easily be
run over speed. We had a 12"dia X 3" wide grinder in the shop at CSMRI. The
3hp motor could have hit 8,000 rpm with high frequency dialed in to it. I
wouldn't want to be in the same county in that case! That would take just
133 hz dialed up from 60hz.

These little drives can control Enormous motors with the use of magnetic
amplifiers and saturable reactors. With absolutely NO application to home
coffee preparation or consumption, geeks loose around the globe would rather
use solid state controls.

Fine. Avoid the rush, get a forktruck and drag out the mag amps for the
3,600 hp motor powered by 14,400v 3-phase.

Cheers, Mabuhay -RayO, aka Opa!

Zap!


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