Trace PV series DC grounding [RE-wrenches]

[Bill Brooks]

The unit takes either configuration and they are equally safe. The key is
keeping your corrected Voc under 600V and your operating voltage above 375
Volts. This usually means 24 modules in series or 12 on each pole in a
bipolar array. You can make a case that a bipolar may be slightly safer
since the voltage is closer to ground--this only holds for ground-faults.

OOps, you live in Canada. Not sure what to recommend for you. Code will not
allow more than 22 modules in series on this inverter in cold climates which
is too low an operating voltage on a hot summer day. Good luck.

Bill.


> -----Original Message-----
> From: Eric Smiley [mailto:Eric_Smiley at bcit.ca]
> Sent: Wednesday, March 14, 2001 12:17 PM
> To: RE-wrenches at topica.com
> Subject: Trace PV series DC grounding [RE-wrenches]
>
>
>
> Any experience out there with the PVseries? Did you use Two-wire
> (mono-pole) with a negative ground, or three wire (bi-polar) with a
> neutral ground?
>
> I am wondering if there are any performance/safety/installation issues
> associated with either configuration.
>
>
> ----------------------------------------------------------------------
> Eric Smiley
> Project Leader - BCIT Technology Centre
> Photovoltaic Energy Applied Research Lab (PEARL) - BCIT
> ph: (604)432-8657 www.bcit.ca/~tc/pearl/index.htm
>
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Newsletters, Tips and Discussions on Topics You Choose.
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