DGVCL Exam Paper (12-06-2016)
For a 66 kV line having span of 200 meters between towers the approximate sag will be 2 m. If the span is double the sag will be:
transformer works on principle of faraday's law of electromagnetic induction. So if D.C supply use, no indction are produced and due to this E.M.F not induced in winding and transfer of electrical energy is not possible.
EXAMIANS