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255v - stopping ev charger
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<blockquote data-quote="RogTP" data-source="post: 549552" data-attributes="member: 37459"><p>The line from the pole is quite long at 49m, and it seems the DNO would prefer it was nearer to 20m. They can't get it to 20m, because the house is simply too far from the pole. So they want to put in a heavier weight cable, presumably to provide a more reliable connection and I believe to reduce circuit resistance. Because new cable would be heavier, it would need to be trenched rather than run across neighbours house as before. </p><p></p><p>The high voltage is almost always, but not exclusively, over night, so is not caused by PV loading. DNO comes and tests during the day, so aren't capturing what is happening at pole and house when voltage is high.</p><p></p><p>I've suggested to them turning the transformer down, but they really don't seem keen. They seem more keen spending £10k-£20k trenching a new cable. I've suggested to them supply a voltage optimiser, again they aren't keen because it patches over a potential 'network problem'.</p></blockquote><p></p>
[QUOTE="RogTP, post: 549552, member: 37459"] The line from the pole is quite long at 49m, and it seems the DNO would prefer it was nearer to 20m. They can't get it to 20m, because the house is simply too far from the pole. So they want to put in a heavier weight cable, presumably to provide a more reliable connection and I believe to reduce circuit resistance. Because new cable would be heavier, it would need to be trenched rather than run across neighbours house as before. The high voltage is almost always, but not exclusively, over night, so is not caused by PV loading. DNO comes and tests during the day, so aren't capturing what is happening at pole and house when voltage is high. I've suggested to them turning the transformer down, but they really don't seem keen. They seem more keen spending £10k-£20k trenching a new cable. I've suggested to them supply a voltage optimiser, again they aren't keen because it patches over a potential 'network problem'. [/QUOTE]
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255v - stopping ev charger
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