<html><body><span style="font-family:Verdana; color:#0033cc; font-size:10pt;"><div>Hi All,</div><div><br></div><div>3 VFX 3648</div><div>2 FM 80</div><div>6.5 kw solar</div><div>12 kw generator</div><div>PSX 240 on generator output and VFX stacking<br></div><div>Mate 3<br></div><div>HUP 1690 ah</div><div><br></div><div>System design considering 45 amp charge current from each VFX totaling 135 amps. (135 x ~55v = 7.42kw) Potential charge current from 2 arrays and FM 80's, 90 - 100 amps. On a good day, reasonable to expect 200+ amps?</div><div>Have not been able to exceed 90 amps for more than 30 minutes, with the generator putting out about 9 kw before it's 70 amp 2pole breaker trips. L1 42 amps, L2 37 amps. 5 amps neutral. Load banked to 12.3 kw (51 amps @ 240v) resistive without breaker trip.</div><div>I have had to dial back the maximum charge current in the Mate 3 to 12 amps each on two of the inverters (L1 and L2) and 8 on inverter 3 to keep the generator from tripping out when customer turns on the microwave or coffee pot. In effect, 42 amps charge @ 240 v = 7.6 kw. At the battery, I'm only seeing 80 amps of charge current. Running loads are typically less than 1 kw but there has been a of construction going on with chop saws and compressors creating annoying spikes that are easily handled by the inverters when the generator is off.<br></div><div>I don't want to kill this new battery by not feeding it properly! I would have put in a larger generator, but the owner bought the 12 kw before deciding on the new battery. I thought the 12 would be merely adequate, but not so....</div><div>Any suggestions?</div><div><br></div><div>Thanks!<br></div><div><br></div><div>Bruce Fiero-RMI</div><div><span style="font-size: 8pt;" mce_style="font-size: 8pt;"><b><br></b></span></div><div><span style="font-size: 8pt;" mce_style="font-size: 8pt;"><img id="sigimg0" title="signature image" src="cid:sigimg0@ec91c0b7e33819d16bf64da3875a31b0" mce_src="cid:sigimg0@ec91c0b7e33819d16bf64da3875a31b0" alt="" border="0" width="125" height="75"><br></span></div><div><span style="font-size: 8pt;" mce_style="font-size: 8pt;"><br></span></div><div><br></div><div><span style="font-size: 8pt;" mce_style="font-size: 8pt;"><br></span></div><div><b><span style="font-size: 8pt;" mce_style="font-size: 8pt;">"I'd put my money on the sun and solar energy. What a source of power! I hope we don't have to wait until oil and coal run out before we tackle that." T. Edison, 1931</span></b></div></span></body></html>