When back feeding a Step Down Transformer to achieve a higher voltage how should the neutral and grounding and bonding be addressed since the neutrals ls on the secondary side originally but now will be on the primary side
I was referring to the standard 480-volt Delta to 120 208 y Dry type Transformers normally used in commercial facilities to step down powerHow the neutral connection (if there is one) is wired depends on the transformer type and feed.
http://www.allaboutcircuits.com/tex...ent/chpt-10/three-phase-transformer-circuits/
http://ecmweb.com/code-basics/grounding-and-bonding-separately-derived-systems
http://iaeimagazine.org/magazine/2009/11/16/separately-derived-systems/
Yes there are some 277 lighting circuits being feed from the existing 480-volt panel.What are you feeding from the 480 secondary that requires a neutral?
Do you actually need a neutral?
Max.