alculate the efficiencies at full load and half load.

A 100 kW, 460 V shunt generator was run as a motor on no load at its

rated voltage and speed. The total current taken was 9.8 A, including

a shunt current of 2.7 A. The resistance of the armature circuit

(including compoles) at normal working temperature was 0.11 Ω.

Calculate the efficiencies at

(a) full load;

(b) half load.

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