EE 740 Professor Ali Keyhani Lecture #6 Load-Tap-Change Transformer (LTC)

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Presentation transcript:

EE 740 Professor Ali Keyhani Lecture #6 Load-Tap-Change Transformer (LTC)

x 338.1x 3 LVHV 10% 30 MVA 10 Z L =6.887 j.10 Sb= phase Eq. Ckt.

10 Y-Y / % 10 MVAZ L =6.887 pu Sb=10 j.10 Vb HV =38.1 Vb LV =3.81

10/3 Y-Y /3 38.1/ % 10 MVA Sb= / MVA

10 Y /3.81/ 3 10% 10 MVA Sb=10 j / MVA 10%

Y-Y 10 10/3 65.9/ MVA 10% j.10 Sb = 30 MVA Vb HV (L-L) Vb L (L-L)

x 338.1x 3 LVHV 10% 30 MVA Z L =6.887 j.10 Sb=30