Combining Turbine Outputs? [RE-wrenches]

[Matt Tritt]

Dave,

At the very least you're going to talk to a power engineer about your
options. These are probably used Vestas or Windmatic turbines from a
windfarm. Windfarms have very sophisticated power aggregation and connection
infrastructure which allows the inputs of multiple large inputs at the same
transformer. How you are going to accomplish this will be on the expensive
side, but the utility will demand very careful engineering before you'll be
allowed to connect.

You can contact me off-list about this if you get in a bind.

MattT
----- Original Message ----- 
From: "David Blecker" <blecker at seventhgenergy.org>
To: "RE-wrenches-topica.com" <RE-wrenches at topica.com>
Sent: Wednesday, October 22, 2003 6:52 AM
Subject: Combining Turbine Outputs? [RE-wrenches]


> Windy's et al,
>
> I'm working on the design of a 3 wind turbine project.  Each turbine is
> 65kW at 480V, 3-phase, 200 Amps max.  The machines will be located about
> 700 feet from the point of interconnection (POI) and rather than bring 3
> sets of parallel cables back to the POI, I'm thinking that it would be
more
> economical to combine their outputs in the field and run a single set of
> cables back to the POI.
>
> Does anyone have a suggestion on what type of equipment is available to
> establish a code-compliant 3 into 1 combiner bus? I'm imagining some kind
> of pad-mounted NEMA enclosure, but quite frankly, this is bigger than
> anything I've ever done and I'm quite clueless about the options.
>
> Thanks to all,
> Dave
>
>
> ----------------------------------------------------------
> David Blecker, P.E., Director
> Seventh Generation Energy Systems
> 608-424-1870 (ph)  424-1810 (fax)
>
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