Have a site with four 3.5mw generators that are not accessible for various reasons.
site visits and install are two hours every week.
The intent is to hookup some solar panels and charge controllers to the windings of the generator to keep moisture out.
Utility power is not available.
The...
Proposed design is for an isolated phase arrangment consisting of 25kV cables with 3-500 kcmils and a #4/0 ground routed underground embedded in conduit.
there is no ferrorous, or steel encircling only one phase, but rebar around the entire duct bank.
The cables are shielded with a tape...
I am specifying/installing (4) 3MVA transformers that are to be located outside in the US in a hot/tropical climate (HI). It needs to be as close to the building as allowable and each other. I am looking for a guideline/standard on placing outdoor transformers. The NEC only mentions providing...