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d) An 11kV/41 V, 3-phase transformer supplies a 20hp, 415V 3-phase motor with rated voltage and current via supply lines
Posted: Sun May 15, 2022 2:32 pm
by answerhappygod
- D An 11kv 41 V 3 Phase Transformer Supplies A 20hp 415v 3 Phase Motor With Rated Voltage And Current Via Supply Lines 1 (19.47 KiB) Viewed 76 times
d) An 11kV/41 V, 3-phase transformer supplies a 20hp, 415V 3-phase motor with rated voltage and current via supply lines each with impedance 0.4 +j1.10. The efficiency and power factor for the motor are 90% and 0.8 lagging respectively. Using a single-line diagram for the system, calculate the per-unit value of impedance for the line and the per-unit value of motor and transformer secondary voltage. (10 Marks)