Does anyone have any recommendations for software to maintain operational single line diagrams for distribution utilities?
There does not seem to be much available to suit this purpose.
The challenges include constant changes to the distribution system (new customers, salvages, reconfigurations...
I'm having some trouble understanding why a radially fed transformer can be a source of fault current during an upstream fault.
SYSTEM:
[TRANSMISSION SYSTEM 25kV BUS]---[25kV BKR]-----------------------[FAULT]--------------------------------[TRANSFORMER]
I've heard that, for certain faults...
For the distribution power system protection engineers:
I am investigating 25kV distribution faults on an overhead system. A known fault occurred downstream of a recloser, which was downstream of the substation breaker on a radial distribution system (see ASCII SLD below).
[SUB...
Are there any distribution protection engineers who consider the conductor damage curve when deciding on the number of reclose attempts?
It seems fairly common to compare the timed-overcurrent curves with the conductor damage curve.
However, if there are reclosing attempts, the conductor will...
