Retain a consulting firm that specializes in data center power systems
they have resources that you do not: suppliers, previous projects, etc
the conceptual design is critical
if on the wrong track as determine by the ee firm it may all have to be restarted
that is time and money
going down the wrong path here is costly
if the method was common the xfmrs would be
but there are std xfmrs that will do it
eg a 14400 to 480 dy
prim taps +/- 2 x 2.5%
sec +/- 4 x 1.67%
I've worked in some large ones ( 5 mva is on the small side)
iron mountain, mellon, progressive, etc
some have 20 mva in generation alone...for one subsection
the suggestion to go 480/277 bears consideration
all standard equipment
they have resources that you do not: suppliers, previous projects, etc
the conceptual design is critical
if on the wrong track as determine by the ee firm it may all have to be restarted
that is time and money
going down the wrong path here is costly
if the method was common the xfmrs would be
but there are std xfmrs that will do it
eg a 14400 to 480 dy
prim taps +/- 2 x 2.5%
sec +/- 4 x 1.67%
I've worked in some large ones ( 5 mva is on the small side)
iron mountain, mellon, progressive, etc
some have 20 mva in generation alone...for one subsection
the suggestion to go 480/277 bears consideration
all standard equipment