Tertiary winding CT
Tertiary winding CT
(OP)
At what transformer size would you normally put in a CT to monitor the current on the tertiary winding of a Y-gnd/buried delta/Y-gnd transformer? I am dealing with wind farm applications, 100-150 MVA, 240kV/34.5kV sized transformers and would like to find some information on how to set them (I assume, by current rating,? but you know where that gets me), and what currents would normally be seen on the tertiary winding (I would guess low current unless you have unbalance or harmonics), I have not found much yet and would appreciate some pointers toward some books or papers.
David
David






RE: Tertiary winding CT
RE: Tertiary winding CT
RE: Tertiary winding CT
If you are using the tertuary winding for load, be aware that in many cases the tertuary fault current can be quite large (as well as ungrounded).
RE: Tertiary winding CT
Regards
Marmite