Guys, i thnak you so far for this useful information. it does make sense, and you are right busbar, th system is considered a uni-grounded system as the power transformer at the substation is grounded to a ground grid, but this is not extended to the distribution line.
Rbulsara, First of all, this is a real situation. Secondly, to clarify the siutation, at this utility, there is no neutral wire, however, the pole-mount transformer casing is grounded with the use of a ground rod in the earth. Because there is no neutral, a second phase line is run and the...
What are the advantages and disadvantages of installing a fuse(s) on a single phase tap-off from a three phase line to prevent the recloser in a substation from unnecessarily operating for faults on the single phase tapoff in an ungrounded wye system?
Because it is an ungrounded wye system...
