4. A simple radial power system has a power station that converts the branch impedance value to the correct base for Loa

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4 A Simple Radial Power System Has A Power Station That Converts The Branch Impedance Value To The Correct Base For Loa 1 (122.75 KiB) Viewed 51 times

4. A simple radial power system has a power station that converts the branch impedance value to the correct base for Load Flow (LF) Calculation. The transformer turn ratio (N1/N2) is the ratio of secondary current and primary current (12/11). = Transformer Primary voltage = 13.8kV and secondary Voltage = 4.16kV Capacity 5MVA, Transformer impedance must be converted to 100MVA. Formula : KV. x] utility Zpu VB X R NI 72 R N2J R = В = X pu X pu pu 1+ V. Zpu = Z" = ZO = SR SA pu VA B B Find the VB, , ZB ( Base Impedance ) and % Zu = %Z 1 pu