Limitations of residual ground-fault elements in medium-voltage motor protection schemes Joseph Thornam, P.E. Sept. 21, 2016. 8 min read . Medium-voltage motors are critical to a facility’s power ...

Motor 2: 5 hp, 230V, 3-phase: FLC = 15.20A [Table 430.250] Feeder protection [Sec. 430.62(A)] is to be sized no greater than the largest branch-circuit ground-fault and short-circuit overcurrent ...