SSE JE Electrical Engineering 24 March 2021 Shift 1 Paper

During the short-circuit test of a synchronous machine, which of the following are accounted for in the short-circuit test loss?
(i) ${\mathrm{I}}^2\mathrm{R}$ loss in the armature winding due to the flow of short-circuiting (AC) current
(ii) Local core loss caused by armature leakage flux
(iii) Core loss due to resultant air-gap flux.
(iv) Windage and friction loss