Neutral Grounding Resistor: Single Line-to-Ground Fault Current Path

A delta-wye transformer with a neutral grounding resistor and a single line-to-ground fault on phase A. A 240 Ω resistor limits the ground-fault current to about 10 A (4,160 ÷ (√3 × 240)), with the return path, wye phasors and an NGR selection table.