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Unbalanced loads on a 3 phase RCD
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<blockquote data-quote="binky" data-source="post: 445764" data-attributes="member: 490"><p>OK, so both criteria need to be applied.</p><p></p><p>I've been checking the G83 and G59 settings for SMA inverters loss of mains test. The standards have been altered, trip times are now 2.5s max, however SMA set their inverters for 1 second and according to the test sheets actually trip in 0.3seconds. So the answer is chose the right inverter.</p><p></p><p>One thing that has occurred to me, if I rodded the inverter and do not connect the AC side earth to the shared earthing for the system how does that affect the requirements of the above?</p></blockquote><p></p>
[QUOTE="binky, post: 445764, member: 490"] OK, so both criteria need to be applied. I've been checking the G83 and G59 settings for SMA inverters loss of mains test. The standards have been altered, trip times are now 2.5s max, however SMA set their inverters for 1 second and according to the test sheets actually trip in 0.3seconds. So the answer is chose the right inverter. One thing that has occurred to me, if I rodded the inverter and do not connect the AC side earth to the shared earthing for the system how does that affect the requirements of the above? [/QUOTE]
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Unbalanced loads on a 3 phase RCD
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