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A 600-KVA, 34.5kV/6.6kV, 60-Hz, single-phase step-down transformer has a core-loss equivalent resistance of 7 k12 and a
Posted: Sat May 21, 2022 12:14 am
by answerhappygod
- A 600 Kva 34 5kv 6 6kv 60 Hz Single Phase Step Down Transformer Has A Core Loss Equivalent Resistance Of 7 K12 And A 1 (47.76 KiB) Viewed 12 times
A 600-KVA, 34.5kV/6.6kV, 60-Hz, single-phase step-down transformer has a core-loss equivalent resistance of 7 k12 and a magnetization reactance of 5.5 k12. The equivalent winding total impedance as referred to the primary side is 34 +j115.7 2. Using the approximate equivalent circuit, 1) Determine the transformer efficiency and voltage regulation when it operates at 75% of rated load with a power factor of 0.8 lagging. 2) Calculate the load at maximum efficiency and the maximum efficiency of the transformer for the load power factor of 0.8 lagging.