Question

Electric power of 30 mw at a p.F. Of 0.8 lagging is to be transmitted by a 132 kv, 3 phase, 3 wire transmission line over a distance of 120 km. The efficiency of transmission is 90%. Calculate: i.Weight of material required in case of copper having resistivity of 1.78 x 10-8 -m and density of 8900 kg/m3. Ii.Weight of material required in case of aluminium having resistivity of 2.6 x 10-8 -m and density of 2000 kg/m3.

Answer 1

Answer:

I can't answer this question because I have not any idea about this

I can't answer this question because I have not any idea about this