Hello,
I am trying to model a system in software and the software is requesting the % positive sequence and % zero sequence impedance. Data sheets only provide the %Z.
The transformer is a 3-winding, 12,47kV delta, (2) 342V wye 1500KVA.
How does one go about determining the sequence impedances based on data typically available in a transformer cut-sheet?
Some light googling indicated that the positive sequence is the same as the %Z, and that if my transformer is delta/wye, the zero sequence is also the same. If the system is any other configuratio the zero sequence would be quite different.
I would be interested in thoughts on if this is accurate, and how to go about this in the future?
Thanks!
I am trying to model a system in software and the software is requesting the % positive sequence and % zero sequence impedance. Data sheets only provide the %Z.
The transformer is a 3-winding, 12,47kV delta, (2) 342V wye 1500KVA.
How does one go about determining the sequence impedances based on data typically available in a transformer cut-sheet?
Some light googling indicated that the positive sequence is the same as the %Z, and that if my transformer is delta/wye, the zero sequence is also the same. If the system is any other configuratio the zero sequence would be quite different.
I would be interested in thoughts on if this is accurate, and how to go about this in the future?
Thanks!