The ohmic resistance of one phase of the 11 kW 380 V line voltage star connected alternator
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Question:
The ohmic resistance of one phase of the 11 kW 380 V line voltage star connected alternator was measured as 2Ω. When the alternator is excited with half of the rated excitation current, it produces 140 V phase voltage, and when short-circuited at the same excitation current, 14 A short circuit current passes. Calculate the voltage regulation of the alternator at full load with ohmic and 0.8 reverse power coefficient according to the synchronous impedance method.
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