1 .edu

Adjacent feeder on same transformer. Customer Level 1. 480V loads. Customer Level 2. 120/208V loads. 12.47kV connection. Fault. Substation transmission bus j. Faulted bus k. Feeder currents drop because of depressed substation voltage. T2: 12.47kV-----480V. T3: 480V-----120/208V. T1: 138kV-----12.47kV. Substation. Customer Level 1. 480V loads ... ................
................