Arrester issue
Originally Posted by
trigger
If they were floating wye power and lighting and no load you can over voltage and blow arrs. Need to tie floating N down or need load or KPF like was stated
This only happens on a fused line,like it was stated the arresters are not rated for the over voltage that occurs because of the delta bank.Like it was stated tie it down or remove all the arresters until the line is hot then tap them on which is a lot of work.The best solution is to have 18kva arresters on all fused lines with delta banks on them then the problem goes away,your not exceeding the line to line voltage of your arresters.When you close that fuse you have an instantanious line to line voltage until the delta colapses.
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