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High Voltages Causing Inverter Trip-Out
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<blockquote data-quote="binky" data-source="post: 324630" data-attributes="member: 490"><p>Voltages around here are normally around 245V, which inverters can handle. The inverter is a Fronius IG35, which displays 250V then cuts out - i watched it do this a few times, should have taken test gear and measured exactly what it went upto.</p><p></p><p>have looked at several VO units, and they all say PV needs to fed into unit on mains side, defeating the object, plus it won't feed back into grid anyway, plus capacitors can effect shut down to grid.</p><p></p><p>Can't remember what we wired that rig in Steps, think it 2.5 flex from memory, (might have been 4mm) - looks neater when clipped to wall in garage and feeds through glands straight into inverter. Cable run is only about 5m to cut out on TT system</p><p></p><p>manual unfortunately doesn't say what upper grid voltage is tolerated, no doubt G83 settings - I'll have to look these up - its been a while since the course lol.</p><p></p><p>R1+R2 for circuit 0.5 <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite9" alt=":eek:" title="Eek! :eek:" loading="lazy" data-shortname=":eek:" />hms Rod 209 <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite9" alt=":eek:" title="Eek! :eek:" loading="lazy" data-shortname=":eek:" />hms </p><p></p><p>this certainly has lead to arguments, but usually countryside locations at end of overhead power lines.</p></blockquote><p></p>
[QUOTE="binky, post: 324630, member: 490"] Voltages around here are normally around 245V, which inverters can handle. The inverter is a Fronius IG35, which displays 250V then cuts out - i watched it do this a few times, should have taken test gear and measured exactly what it went upto. have looked at several VO units, and they all say PV needs to fed into unit on mains side, defeating the object, plus it won't feed back into grid anyway, plus capacitors can effect shut down to grid. Can't remember what we wired that rig in Steps, think it 2.5 flex from memory, (might have been 4mm) - looks neater when clipped to wall in garage and feeds through glands straight into inverter. Cable run is only about 5m to cut out on TT system manual unfortunately doesn't say what upper grid voltage is tolerated, no doubt G83 settings - I'll have to look these up - its been a while since the course lol. R1+R2 for circuit 0.5 :ohms Rod 209 :ohms this certainly has lead to arguments, but usually countryside locations at end of overhead power lines. [/QUOTE]
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