Delta side current for a delta wye grounded transformer with faulty …
Jun 11, 2014 · The wye-side ground fault shows up as a phase-phase fault on the delta-side. The ground fault has positive, negative, and zero sequence components. The zero sequence doesn't …
Open Wye - Open Delta Phasors | Eng-Tips
Mar 9, 2023 · A wye delta transformer bank floated across the line will go a long way towards correcting the issues. The wye delta bank will cause a neutral current to flow in such a magnitude and at such …
Why utilities use Wye-Wye Conneted transformer?? | Eng-Tips
Mar 1, 2004 · If there is upstream relaying on a delta-wye transformer, any zero-sequence current can be assumed to be from a primary ground fault, allowing very sensitive ground fault protection. On a …
Auto-transformer vs Wye-Wye-Delta | Eng-Tips
Oct 31, 2018 · Wye-Wye-Delta gives you the option of running your transformer with the primary ungrounded and the secondary grounded. Often done where no phase shift is required yet you need …
Fault with delta (ungrounded) Source and Wye Grounded transformer
Aug 18, 2001 · Hello all, We do have a 12 kV delta ungrounded source transformer feeding a station service transformer Wye/grounded via an underground 15kV cable rated for with 133% Insulation …
Transformer winding phase angle shift | Eng-Tips
Jan 8, 2003 · I have some follow questions with regard to delta-wye transformer phase shift. I'm refering to transformere built in the USA to ANSI standards. Is the phase shift different for delta-wye or wye …
Buried Delta tertiary- Zero Sequnce | Eng-Tips
Jul 25, 2005 · I am an electrical engineer in training working for an engineering firm. Currently I am working on some technical aspects of a substation of a Wind Farm Project. The main transformer for …
Wye Wye vs Delta Wye Transformers | Eng-Tips
Aug 29, 2006 · I 3 paralled Generators to power an Industrial System Wye System. This is a prime power application. The Generators will serve a Transformer that is 480v - 4160v Wye. The plant is …
Detecting Wye Side Faults Through a Delta (on a Delta-WyeGnd …
Jul 21, 2015 · I have a 2500kVA 13.8kV delta - 480Y/277 WyeGnd service transformer that serves a building. The owner is putting 2MW of PV in a field beside the building, which will be connected at …
Wye Wye Transformer connection Pros and Cons | Eng-Tips
Sep 14, 2006 · Wye-Wye transformer connections should generally be avoided because of the objectionable characteristcis of such connections. First, a connection of this type generally requires …