Assume that the continuous miner has the motors: 1. cutting motors, two at 90 hp; 2. pump motor, 50 hp; 3. gathering -head motor, 70 hp; and 4. traction motors, two at 35 hp. ... 41QA tL /3 (0.48) (0.9) (0.9) This current exceeds the cable ampacity; thus, breaker sizing based on cable ampacity is not applicable. ... Yet, the circuit breaker must be selected to handle the load demands of the continuous miner.
|Title||:||Mine Power Systems|
|Author||:||Lloyd A. Morley|