[RE-wrenches] AEI Solaron Inverters - DC Grounded or Ungrounded

[Bill Brooks]

Matt,

 

They claim to use a bi-polar array with 600Vdc per pole. All bipolar arrays
must be grounded, so they must be grounded. They claim to be grounded
through the ac service transformer while operating. They are fundamentally
similar to many ungrounded designs. So, it IS grounded during operation
every time the transistor closes, which is very fast, so they don't spend
much time ungrounded during operation-maybe never because they are operating
on 3 phases. The neutrals would have to be white.

 

Bill.

 

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Matt
Lafferty
Sent: Monday, May 03, 2010 1:28 PM
To: RE Wrenches
Subject: [RE-wrenches] AEI Solaron Inverters - DC Grounded or Ungrounded

 

Wrenches,

 

Can anyone DEFINITIVELY tell me whether the DC systems on AEI Solaron based
plants is grounded or ungrounded during operation? 

 

Have you tested your theory in the field? What marking requirements do you
suggest for the neutrals?

 

Thanks!

 

Matt Lafferty

 

 

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