Hi everybody well I’m using a ten amp Power supply with a crest ten amp controller. My problem I’m burning the external wire that feeds power off the axels to the wires to the motor. Any suggestions would greatly be appreciated thanks
Use a heavier gauge wire and check for binding in the drive mechanism causing the motor to draw excessive current.
I use a crest unit with a train engineer and a couple times I have burned up wires on my USAT locos but it was only after bad derailments were the wheels trucks contacted both sides of the rail adn caused a major short that was too fast for either of the 2 fuses to pop in my power setup.
Other non USAT engines have crossed therails like this but haven’t burned wires. I wonder if it is problem with them?
Maye you have a crossed wire? or a broken one? Do the wires burn out when the engine is on the track and you apply power? or after a derailment?
It’s the wires that allow track power on bottom of block on the axels. Smells like motor windings are burning and drawing too much amps thus burning bare feeder wire off axels. The two wires off the axels are burned at point of touching the axels thanks Troy ps this is just a brand new motor block I was testing and power supply and went up in hellfire
Don’t derail the loco and overheat the wire, usually happens on a switch. Once the wire gets close to red hot from a short, it softens, loses it’s spring and no longer picks up power.
The example Todd is exactly right on how this happens. The main reason USAT seems so susceptible is that normally when you do this, it’s a bit more wire in the “short circuit” path.
In the case of the USAT trucks (and is this an F3 by the way?) the short is all basically contained within the truck, (a shorter path) so you have maybe about 1/3 the resistance… simple logic tells you that for the same voltage this situation get’s 3 times as much short circuit current. boom.
Greg