I have 4 ET solar- 185w panels with a VMP of 36.9, VOC of 44.75, IMP of 5.014, and ISC of 5.54. I also have 2 Hanwhas 190w and 2 Makesen 180w with very close to the same ratings. It was suggested to me to do 4 sets of two panels into a combiner box, and onto one input breaker of the MPPT in the MM5000 I have. So this works out to around 74volts 5ish amps per string combined for 74volts 20ish amps total. I don't seem to find a temp coefficient % on the panel labels, but did find on Midnight Solar's web page a chart they use for temp considerations. I'm taking a pretty worse case scenario and saying in WI we could see a full sun day at -40F in winter. The chart shows using a multiplier of 1.25 on the VOC number. So in my case the VOC would be almost 90*1.25=112.5v
The MM5000 manual shows 120 input max. I see when Beacon made the M5 off the MM5000 when Advanced Energy went out, they lowered max to 110. Should I even be thinking about hooking it up, or go with a different MPPT and just use the inverter portion of the MM5000? Directions for either model don't go into that type of application. Was going to use the MM5000 as stand alone, no grid connection, 48volt 420amp hour battery bank (16 GC2 batteries with 210hr AH) , with the appr, 1480w going in. The batteries were going to be FVP batteries sold at a local big box store. Appears those batteries are made by Trojan. I'm sure I will trash my first set I will also be clamping a 48 volt 3 phase axial flux to the batteries via bridge rectifier. I have two Morning star TS 45 PWM I was told I could use in tandem in diversion mode using slightly different set points. Was going to dump into water heating elements. This was/is all going to be an experimental setup for me to learn and eventually expand on.
Thoughts and constructive criticism please. I will try to take it well
David
The MM5000 manual shows 120 input max. I see when Beacon made the M5 off the MM5000 when Advanced Energy went out, they lowered max to 110. Should I even be thinking about hooking it up, or go with a different MPPT and just use the inverter portion of the MM5000? Directions for either model don't go into that type of application. Was going to use the MM5000 as stand alone, no grid connection, 48volt 420amp hour battery bank (16 GC2 batteries with 210hr AH) , with the appr, 1480w going in. The batteries were going to be FVP batteries sold at a local big box store. Appears those batteries are made by Trojan. I'm sure I will trash my first set I will also be clamping a 48 volt 3 phase axial flux to the batteries via bridge rectifier. I have two Morning star TS 45 PWM I was told I could use in tandem in diversion mode using slightly different set points. Was going to dump into water heating elements. This was/is all going to be an experimental setup for me to learn and eventually expand on.
Thoughts and constructive criticism please. I will try to take it well
David
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