Answer Posted / dibyendu mondal

Actually 1) Armature winding have greater current than field winding.For large current in armature the greater amount of magnetic material required to produce linear magnetic curve. But rotor have lesser material than stator.
2) The heating loss on slip rings and brush contact will be increase if armature winging is om rotor.
Thank you.

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Dear sir, my knowledge about cable size determination is limited. Though I read examples I could not calculate the Cable size required for electric driven pump 40 KW, 380 Volt, 50 HZ, 50 meter from transformer and it is three phase star delta starting. Please help as there is no one in my surroundings to help.

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