Page 783 - Basic Electrical Engineering
P. 783

Per-phase current,



               Given that at a field current of 50 A, short-circuit I  is 262 A and the open-
                                                                            a
               circuit line voltage is 1200 V



                  Synchronous impedance/phase







               R  per phase = 0.2 Ω
                 a

                                            cosϕ = 0.8, ϕ = 37°, sinφ = 0.6


               At lagging power factor load







               and at leading power factor load












               Percentage regulation at full load 0.8 power factor lagging
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