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Computers and Technology, 30.01.2020 03:54 alexshakim8893
(20 points) per unit calculation. a single-phase transformer with voltage ratio 7.97 kv: 120v, leakage inductance 193 mh, primary magnetizing inductance 167 h is connected to a source at the primary side. conduct per unit analysis to find the secondary side current if the secondary side is connected to a load of 10 kw when voltage is nominal and power factor is 0.9 lagging. the primary side is connected to a stiff grid of nominal value (represented by a voltage source, 7.97 kv). notes: if a grid is weak, that means we need to model it as a voltage source behind a thevinin impedance. stiff grid means the voltage is of constant magnitude and constant frequency. you may make sure your calculation is accurate by matching your calculation with pscad experiments. the pscad file for q3 is posted.
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(20 points) per unit calculation. a single-phase transformer with voltage ratio 7.97 kv: 120v, leak...
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