Quote:
Originally Posted by popo308
We recently made some off season mini-robots and we ran all the victors without fans on them. They worked fine, the victors never shut down or went up in smoke because of heat. I know that the victors are rated to handle much more voltage. (i believe up to 48 volts??) So at 12 volts its really not hard on the victor at all. It should have no problem running at 12 volts with not fan on.
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As far as I know, the Victor 883's and 884's are rated between 6 and 15 volts. In practice they don't seem to run well at all below 9 volts, and I've run one 883 up to 24 by accident once. It functioned fine for about 20 minutes before I noticed the error. I think, but am not certain, that the older 883's had a higher voltage rating but lower current rating. I still have a bucket of the things that are all over 5 years old and still working fine despite lots of varied use over their lives.
IF does, or has, made some variations of the Victor that operate at higher voltages, currents and/or with out reverse. These are aimed at the combat robot crowd for running big spinning weapons and very large drive motors.
I wouldn't recommend running the Victors with out the fans in FIRST, and I think it's actually illegal to do so. The added cooling probably does increase the Victors efficiency more then the small draw the fan reduces it. If I had the option I might consider removing the fans on Victors running low current motors, like the globe or seat motors. These motors just aren't capable of overheating a Victor, and I'd rather save the weight.
-Local