<div dir="ltr">Oh, yeah, I think this should work just fine.<div><div><br></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Apr 27, 2016 at 11:54 AM, Shane Trent <span dir="ltr"><<a href="mailto:shanedtrent@gmail.com" target="_blank">shanedtrent@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>Robert,</div><div><br></div><div>This is what I had in mind.</div><div><br></div><div><br></div><div><img src="cid:154586d4e1bd0cad2212" alt="pasted2" style="max-width:100%"><span class="HOEnZb"><font color="#888888"><br></font></span></div><span class="HOEnZb"><font color="#888888"><div>Shane</div></font></span><div><div class="h5"><div><br></div><div><br></div><div class="gmail_quote"><div dir="ltr">On Tue, Apr 26, 2016 at 9:51 PM Shane Trent <<a href="mailto:shanedtrent@gmail.com" target="_blank">shanedtrent@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Robert,<div><br></div><div>I believe the inverter has L1-N-L2 inputs and N is not grounded. I expect there is no electrical connection between ground and N. <span style="line-height:1.5">I wanted to tie the 120V input ground to the chassis or earth ground of the system (strange calling it an earth ground since the entire system is mobile and never tied to an </span>actual<span style="line-height:1.5"> earth ground).</span><span style="line-height:1.5"> </span><span style="line-height:1.5"> The goal is to ensure the only conductive path from 115V inputs to Ground or the 230V outputs (L1 or N or L2) to ground is through a fault condition that should trip a GFI on either the 115A input or the 230V output breaker in the power box connected to the output of the the inverter depending on where the fault occurs. </span></div><div><div><br></div><div>No schematic. It is a Scheider XW+ 5548 NA, which is an amazing piece of machinery. Combined with remote administration via their ComBox it is a fantastic setup. The system is powered via 18kW of AGM batteries and backed by a 3kW generator. Wired with 00 gauge welding cable and 150A breakers at every power entry point on the DC bus.</div></div><div><br></div><div><a href="http://solar.schneider-electric.com/product/conext-xw-na-solar-inverter/" target="_blank">http://solar.schneider-electric.com/product/conext-xw-na-solar-inverter/</a><br></div><div><br></div><div>Manual</div><div><a href="http://cdn.solar.schneider-electric.com/wp-content/uploads/2015/09/conext-xw-na-owners-guide-975-0240-01-01_rev-f_eng.pdf" target="_blank">http://cdn.solar.schneider-electric.com/wp-content/uploads/2015/09/conext-xw-na-owners-guide-975-0240-01-01_rev-f_eng.pdf</a><br></div><div><br></div><div>The inverter has L1-N-L2 output terminals, L1-N-L2 AC input terminals and L1-N-L2 Generator Input terminals. Again, my quest is simply allow the 3kW generator to feed the L1-N-L2 generator inputs and provide a valid ground reference to allow GFI breakers on the inverter L1-N-L2 outputs to function in the event of a fault. <br></div></div><div dir="ltr"><div dir="ltr"><div><br></div><div>Shane</div></div></div><div dir="ltr"><br><div class="gmail_quote"><div dir="ltr">On Tue, Apr 26, 2016 at 9:12 PM Robert Gasiorowski <<a href="mailto:rgresume@gmail.com" target="_blank">rgresume@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Since GND is connected to N at the panel, it will work. However, it's dangerous, it is a code violation, and GFI will not work.<div><div><br></div></div><div>If your inverter has 240V L1-N-L2 inputs and N is grounded and connected to center tap, then that will be a problem and you may have to use isolated transformer. Do you have schematic or pictures of your inverter's guts?</div><div><br></div></div>
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