
08-04-2014, 15:31
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Chesapeake LRI/Friendly Giant
AKA: Kevin
 FRC #3650 (RoboRaptors)
Team Role: Mentor
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Join Date: Jan 2014
Rookie Year: 1998
Location: Maryland
Posts: 94
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Re: Main breaker tripping, dead CIM
Quote:
Originally Posted by Al Skierkiewicz
Changing from #12 to #10 and making everything shorter will increase your current draw, not decrease it. As you increase current demand, there is a voltage drop increase across everything in the path, wires, PD, breakers, speed controllers, and connectors. Jaguars when using the CAN bus can report current at the input to the controller. Be advised that the Jags have an over current and an under volt fault. Just like putting fans on a closed motor, trying to cool the breakers externally does little to change the trip point.
The compressors draw significant current when starting but in general are one of the least demand motors we use. The old Thomas KOP compressor would draw 25-27 amps at start and will run at 12 amps. The new Viair starts at something like 20 amps and runs at a little over 10.
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How will reducing resistance increase current draw?
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