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Epever up5000-hm8042 and Floating Neutral
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<blockquote data-quote="Phoenix" data-source="post: 553942" data-attributes="member: 8133"><p>You have to think how the inbalence is going to occur, in an ungrounded system, its probably not in a first fault situation, so you'll have the RCD not trip, and the system then grounded at a random position with a random impedance, which could mean your polarity is not what you expect it to be and if its downstream of the RCD (likely) then any second fault is not going to create that imbalence either. There is a reason why electrical separation for mutiple pieces of equipment is not permitted in installations not under the control of skilled persons, normally a means of detecting a first fault would be installed so that it can be rectified at the earliest possible oppertunity. Its not something that belongs in a domestic installation</p><p></p><p></p><p>While some parts of the globe are a bit hit an miss on whether they run a cpc with final circuits, I suspect that very few run un-grounded power systems (other than perhaps small systems run from generators) as you start to end up with problems with undesirable voltages between the physical ground and the LV wiring, due causes such atmospheric conditions, or coupling from the HV side. What does sometimes vary is where they ground it.... corner grounded delta, anyone? or halfway along one of the delta connected legs, because, who would need all three of your phases to be the same voltage above ground?...not the americians, thats for sure....</p></blockquote><p></p>
[QUOTE="Phoenix, post: 553942, member: 8133"] You have to think how the inbalence is going to occur, in an ungrounded system, its probably not in a first fault situation, so you'll have the RCD not trip, and the system then grounded at a random position with a random impedance, which could mean your polarity is not what you expect it to be and if its downstream of the RCD (likely) then any second fault is not going to create that imbalence either. There is a reason why electrical separation for mutiple pieces of equipment is not permitted in installations not under the control of skilled persons, normally a means of detecting a first fault would be installed so that it can be rectified at the earliest possible oppertunity. Its not something that belongs in a domestic installation While some parts of the globe are a bit hit an miss on whether they run a cpc with final circuits, I suspect that very few run un-grounded power systems (other than perhaps small systems run from generators) as you start to end up with problems with undesirable voltages between the physical ground and the LV wiring, due causes such atmospheric conditions, or coupling from the HV side. What does sometimes vary is where they ground it.... corner grounded delta, anyone? or halfway along one of the delta connected legs, because, who would need all three of your phases to be the same voltage above ground?...not the americians, thats for sure.... [/QUOTE]
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