Is anyone able to give me a clear explanation of fault current flow on the attached 1-line with fault locations in case 1 and 2?
The incoming utility service is a 13.2 kV delta. The 480V generator is connected with a 13.2 kV wye-gnd to 480 V delta transformer.
On a recent utility fault on the...
We have a 13.2 kV Delta to 208/120 Wye/gnd transformer, supplying facility power.
The utility had a single phase ground fault on the 13.2kV primary side and the Neutral conductor on the grounded wye got destroyed/burnt.
Any ideas how that neutral conductor picked up extensive current?
Gentlemen, can a ground fault on the primary side of a delta/delta main transformer (1MVA, 13200/380) be seen/detected on the secondary side of the transformer? I say, NO.
We would like to avoid MV rated PTs to detect a utility ground fault. No high side Wye-G PTs are installed.
