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| Big motors on a long single phase distribution line need lots of transformer capacity to keep the starting currents from dropping the voltage too far and may need some soft start starters to limit the starting current. And WILL need the transformer close to the biggest motors with substantial conductors to the starters and the motors to minimize voltage drop. 100 feet of wire rated for the motor run current will make for really poor starting just from the voltage drop. Going 6 or 8 sizes larger will help in motor starting a great deal.
The trouble with transformers really close to the bins is that can put overhead wires in the way of augers and the two don't mix safely. It would be better to use pad mount transformers with several hundred feet of underground 7200 volt cable.
Gerald J. | |
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grain bin with single phase power
