zero sequence generator
zero sequence generator
(OP)
Hi,
If the manufacture only provides positive sequence impedance for a 3 winding core type, 12/11/0.415kV transformer with out giving the zero sequence impedance, what approximation can I take?
Any links or doc that I can refer to will be very much appreciated.
Thanks
If the manufacture only provides positive sequence impedance for a 3 winding core type, 12/11/0.415kV transformer with out giving the zero sequence impedance, what approximation can I take?
Any links or doc that I can refer to will be very much appreciated.
Thanks






RE: zero sequence generator
Try a Google search for transformer symmetrical components.
RE: zero sequence generator
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RE: zero sequence generator
"..12/11/0.415kV transformer ... "
From the above voltages it sounds to me that you are in the IEC world.
Please refer to Table 1 of IEC 60076-8 for a complete list of typical zero sequence impedance values for 3-winding transformers with different connection symbols. But, if you are looking for an accurate value, the only contact is the transformer manufacturer.
Hope this helps.
Kiri