Mathematics · Electrical Machines
A 10,000 kVA, 3-phase, star-connected 11,000 V, 2-pole turbo generator has the following losses: (i) Open circuit core loss at 11,000 V = 80 kW (ii) Windage and frictional loss = 40 kW (iii) Full load armature copper loss = 200 kW (iv) Field copper loss = 90 kW Ignoring the change in field current, compute the percentage efficiency at rated load and 0.8 power factor leading.
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