engineering recuitment PGCIL Diploma Trainee Mock Test 2024 Power Systems Transmission and Distribution
What is the maximum length of a 1-phase transmission line having a copper conductor of 0.7 cm2 cross-section, over which 180 kW at unity power factor and at 3600 V are to be delivered? The efficiency of transmission is 90 %. (Take specific resistance as 1.4 μ Ω cm.)
1
12.5 km
2
10 km
3
20 km
4
13.7 km