Solar & Photovoltaic en Six PV Inverters <div class="node-body forum-body"><p>This is kind of an odd duck scenario (test facility).</p> <p>Design concept 1- feed six 7,700 &nbsp;nominal, 208/240V output inverters into a 3-phase panel.</p> </div><p><a href="" target="_blank">read more</a></p> Solar & Photovoltaic Tue, 21 Jun 2016 18:28:04 +0000 137101 at Solar Design for WYE 230V System at 60 Hz <div class="node-body forum-body"><p>Hello,</p> <p>We have been contracted to do some projects in the Philippines.&nbsp;There are some strange grid configurations there,&nbsp;where the site is 3-phase WYE 230V&nbsp;line to line.&nbsp;Most 3 -hase inverters operate at a minimum voltage of 400V.</p> <p>I am interested to here suggestions as to how to remedy this situation.&nbsp;We would prefer not to have multiple small single-phase string inverters.</p> <p>Is using 230V&nbsp;to 400V&nbsp;step up transformers the only alternate solution?&nbsp;If so, what considerations should we be mindful of?</p> </div><p><a href="" target="_blank">read more</a></p> Solar & Photovoltaic Tue, 22 Sep 2015 04:39:46 +0000 127491 at Line side connection ( tap ) <div class="node-body forum-body"><p>Hi,<br /> I would appreciate it if someone could give me informaion on a line side tap (existing main electrical panel)&nbsp;for a residential rooftop solar PV installation.<br /> Thanks!</p> </div> Solar & Photovoltaic Thu, 14 Aug 2014 19:28:54 +0000 51181 at 1,000VDC Systems <div class="node-body forum-body"><p>I see more PV equipment being offered at the 1,000VDC rating. Does anyone have any compelling arguments to make as to the advantages/disadvantages of installing a 1,000VDC system over a 600VDC system?</p> </div> Solar & Photovoltaic Fri, 14 Feb 2014 12:55:36 +0000 41381 at Fire Safety Issues with Roof-Mounted PV Systems <div class="node-body forum-body"><p>A couple of high-profile fires at buildings equipped with roof-mounted PV systems has created serious concerns for firefighters. The concerns relate to limited access on the roof space and shock/electrocution hazards from the panels. Some states are considering enacting laws to help protect firefighters from these dangers. The 2014 NEC includes a provision for rapid shutdown of PV systems on buildings. Is this one rule enough or should additional requirements be adopted?</p> </div> Solar & Photovoltaic Fri, 14 Feb 2014 12:54:45 +0000 41371 at