34kV to 4160V substation

[mshields]

Looking for application guidelines for outdoor HV to MV substations. Can anyone suggest a source or two where I could bone up on design principles.

Does the NEC apply above 15kV? And if not, for a private institution, what guidelines DO apply?

Thanks,

Mike

 

[mivey]

For a start: IEEE, NESC, RUS. RUS has a substation design guide you can download.

 

[JoeStillman]

Bite the bullet and buy yourself a copy of the NESC. It's worth it.

 

[jim dungar]

Looking for application guidelines for outdoor HV to MV substations. Can anyone suggest a source or two where I could bone up on design principles.

Does the NEC apply above 15kV? And if not, for a private institution, what guidelines DO apply?

Is this going to be an open air or a metal enclosed substation?

Open air should follow NESC. Totally enclosed is not much different than LV unit subs.

 

[mshields]

Open air vs enclosed

Open air vs enclosed

Because this is on a college campus, the owner, for security and safety reasons, asked if we could design it all with enclosed technologies. We found that if we kept the transformation to 5MVA, cooper makes pad mounted regulators that would work for that size transformation. Since 5MVA works well for us as far as capacity is concerned, that's the way we're going to go.

Would NESC still be useful?

Thanks,

Mike

 

[eHunter]

Because this is on a college campus, the owner, for security and safety reasons, asked if we could design it all with enclosed technologies. We found that if we kept the transformation to 5MVA, cooper makes pad mounted regulators that would work for that size transformation. Since 5MVA works well for us as far as capacity is concerned, that's the way we're going to go.

Would NESC still be useful?

Thanks,

Mike

On MV & HV installations, yes.