Single phase transformer grounding conductor
Feb 24, · Single Phase V Transformer Grounding Question And I want to see if anyone is in agreement with how I'm doing this or if there was a better way. I have a volt single phase spot welding machine that is being fed from an old Federal pacific transformer. A 1/0 AWG copper conductor will be used as the grounding-electrode conductor and will be run from the ampere circuit breaker to the structural steel of the building. A: The primary full load current for this transformer is amperes. A grounding electrode conductor for a single separately derived system must be sized in accordance with , based on the total area of the largest secondary ungrounded (hot) conductor. This conductor shall connect the grounded conductor of the derived system to the grounding electrode as specified in (A)(4).