DGVCL Exam Paper (11-12-2011)
If the percentage reactance of the system upto the point of fault is 20% and the base kVA is 10,000 the short ciruit kVA is
interpoles is widely use to improve commutation place between main poles fitted to yoke functions: to neutralize armature mmf in commutating zone to produce some flux in commutating zone
EXAMIANS