[RE-wrenches] Outback VFX input voltage cycling

I'm having a problem with an Outback VFX3524 inverter installed on an E-panel in a remote off-grid location. Voltage at the inverter input terminals is fluctuating between 110 & 140+ volts continuously. AC in will not connect so batteries can't charge. Output voltage measured at the inverte

Re: [RE-wrenches] Inverter with two strings of different orientation

Yes we can. I didn't know that the Aurora product had two separate MPPT circuits. Thanks, I'll look into it. - Peter Peter T. Parrish, Ph.D., President California Solar Engineering, Inc. 820 Cynthia Ave., Los Angeles, CA 90065 Ph 323-258-8883, Mobile 323-839-6108, Fax 323-258-8885 CA Lic. 854779,

Re: [RE-wrenches] Inverter with two strings of different orientation

Can't you use an inverter with two separate MPPT circuits - ie. Aurora? -Original Message- From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Peter Parrish Sent: Friday, December 26, 2008 2:30 PM To: 'RE-wrenches' Subject: Re: [R

Re: [RE-wrenches] Inverter with two strings of different orientation

I was afraid that the ultimate resolution would be another software cost item. I'll look into PVSYST, and consider purchasing it if it is a professionally-developed and maintained product, with pre-and post-sales technical support, a policy of regular upgrades, runs on PCs and MACs, and has a model

Re: [RE-wrenches] Inverter with two strings of different orientation

Peter and Darryl, The right way to do this is using a computer program PVSYST ($800). It will calculate the operating voltage of each string and the overall performance. Not much else out there can calculate it. That being said, the loss of these two orientations will be less than 2% based on the