Single Transformer Substation: 69 kV Main Breaker, 12 MVA Transformer and Four Feeders

A single-line diagram of a 69 kV disconnect and main breaker, a 12 MVA, 8% impedance delta-wye transformer with HV and LV CTs for 87T differential protection, a 13.8 kV main breaker and bus, and four outgoing feeders with a 502 A full load.