How do I derive my Neutral when I use Step Up/ Step Down transformers?

[LarryFine]

You keep using grounded and grounding interchangeably, and they are not the same thing.

The difference matters so we can discuss it correctly.

#1 is a grounding conductor, for bonding metallic parts.

#2 is a grounded conductor, which is your derived neutral.

Added: Okay, green wire #2 is the electrode wire for your derived neutral.

Green #1 is the EGC for your primary and feeder circuits.

 

[LarryFine]

Also, remember that there is an option to use an H1 and N in your (relatively) high-voltage feeder if desired.

 

[Installer]

Thanks Mr. Fine. Now I understand . Grounded Conductor 1 does not exist, it should have been called the EGC. I'm going to study 250.30 very carefully the next few days.