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Bit of help needed with calculations, new system. (basic stuff)
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<blockquote data-quote="torbrowser" data-source="post: 530847" data-attributes="member: 35318"><p>Hi all,</p><p>About to start installing my Hybrid PV system on my house, i have many questions but i will work through them one at a time to try and keep things as simple as i can.</p><p></p><p>System</p><p>Growatt 6000w Hybrid inverter 2 x strings</p><p>16 x 385w Panels (2 x 8 panel strings)</p><p>2 x 3300w batteries.</p><p></p><p>Firstly i have been doing the calculations on the string size, here are my workings out.</p><p>8 x 385w = 3080w</p><p></p><p>O/C volt @ 25 deg C 40.6V x 8 = 324V</p><p>O/C volt @ 0 deg C (co-eff V oc = -0.25%) 324V x 0.25% = 0.81V x 25 = 344V per string</p><p></p><p>My Inverter is rated at,</p><p>6000w</p><p>550v d.c</p><p>Max input current 16.9 d.c A*2</p><p></p><p>What is not clear to me after reading the booklet, is the max voltage 550v per string</p><p>And what does the A * 2 mean after the input current.</p><p></p><p>Kind regards</p><p>Jack</p></blockquote><p></p>
[QUOTE="torbrowser, post: 530847, member: 35318"] Hi all, About to start installing my Hybrid PV system on my house, i have many questions but i will work through them one at a time to try and keep things as simple as i can. System Growatt 6000w Hybrid inverter 2 x strings 16 x 385w Panels (2 x 8 panel strings) 2 x 3300w batteries. Firstly i have been doing the calculations on the string size, here are my workings out. 8 x 385w = 3080w O/C volt @ 25 deg C 40.6V x 8 = 324V O/C volt @ 0 deg C (co-eff V oc = -0.25%) 324V x 0.25% = 0.81V x 25 = 344V per string My Inverter is rated at, 6000w 550v d.c Max input current 16.9 d.c A*2 What is not clear to me after reading the booklet, is the max voltage 550v per string And what does the A * 2 mean after the input current. Kind regards Jack [/QUOTE]
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Bit of help needed with calculations, new system. (basic stuff)
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